Sepam 20 Installation Manual 61j2k

Instruction Bulletin Sepam Series 20 Digital Relay Installation Guide

Retain for future use.

63230-216-208B1 7/2003 Lavergne, TN, USA

Read these instructions carefully and look at the equipment to become familiar with the device before trying to install, operate, service, or maintain it. The following special messages may appear throughout this bulletin or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure.

NOTICE

The addition of either symbol to a “Danger” or “Warning” safety label indicates that an electrical hazard exists which will result in personal injury if the instructions are not followed.

!

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

DANGER DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING WARNING indicates a potentially hazardous situation which, if not avoided, can result in death or serious injury.

CAUTION CAUTION indicates a potentially hazardous situation which, if not avoided, can result in minor or moderate injury.

CAUTION CAUTION, used without the safety alert symbol, indicates a potentially hazardous situation which, if not avoided, can result in property damage. NOTE: Provides additional information to clarify or simplify a procedure.

PLEASE NOTE

Electrical equipment should be installed, operated, serviced, and maintained only by qualified personnel. This document is not intended as an instruction manual for untrained persons. No responsibility is assumed by Square D for any consequences arising out of the use of this manual.

Class A FCC Statement

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designated to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the will be required to correct the interference at his own expense.

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Table of Contents

SECTION 1:

INTRODUCTION

Main Functions ............................................................................................ 1 Relay Logic ............................................................................................ 2 Substation Feeder and Main: S Type ............................................... 2 Transformer: T Type......................................................................... 2 Motor: M Type .................................................................................. 2 Bus Voltage: B Type......................................................................... 3 Measurement ......................................................................................... 3 Communication ...................................................................................... 3 Diagnosis ............................................................................................... 3 Control and monitoring ........................................................................... 3 Sepam Series 20 Selection Table .................................................... 4 Machine Interface ................................................................................ 5 Expert UMI software .................................................................................... 5 Symbol Key .................................................................................................. 6 Metric Measurements/U.S. Equivalents ....................................................... 6 Electrical Characteristics ............................................................................. 7 Environmental Characteristics ..................................................................... 8

SECTION 2:

SAFETY PRECAUTIONS

...................................................................................................................... 9

SECTION 3:

INSTALLATION

Installation of Sepam ................................................................................. 11 Equipment Identification ............................................................................ 11 Sepam Model Identification .................................................................. 11 Identification Labels ............................................................................. 11 Package Labels .................................................................................... 12 Connectors ........................................................................................... 13 Sepam Models ..................................................................................... 14 Package Contents ................................................................................ 15 Instruction Materials ............................................................................. 15 Shipping, Handling, and Storage ............................................................... 16 Sepam in its Original Packaging .......................................................... 16 Sepam Installed in a Cubicle ................................................................ 16 Operating Environment .............................................................................. 16 Assembly and Mounting ............................................................................ 17 Mounting of the Sepam main unit ........................................................ 18 Flush-mounting in front ............................................................... 19 Surface Mounting with AMT840 plate .................................................. 20 Flush Mounting of the DSM303 module in the front ................... 21 Connection ................................................................................................. 23 Sepam Components....................................................................... 23 Installing Terminal Guard on Main Terminal Block (Ring Lug Terminals)..................................................................... 24 Connection of the Main Unit ................................................................. 24 Wiring of the CCA620 (Main) connector:....................................... 25 Wiring of the CCA622 (Main) connectors: ..................................... 25 Characteristics of the 4 base unit relay outputs O1, O2, O3, O4. .. 25 Connection of Optional Input Output MES114 Module ........................ 26 Connection ..................................................................................... 28 Wiring of the Circuit Breaker/or Trip Circuit........................ 28 Connection of Current Inputs ............................................................... 29 Other Current Input Connection Schemes ..................................... 30 Other residual current input connection schemes .......................... 31 Ground Fault Current Measurement Method Summary without Neutral .............................................................................. 32 Ground Fault Current Measurement Method Summary with Neutral ................................................................................... 33 Connecting CTs.............................................................................. 34 Connecting LPCTs ............................................................................... 37 CLP1 LPCT sensors....................................................................... 37

© 2003 Schneider Electric All Rights Reserved

i

Sepam Series 20 Table of Contents

63230-216-208B1 7/2003

ACE917 injection adapter ............................................................... 37 CCA613 remote test plug ............................................................... 37 Connection of Ground Fault CTs .................................................... 40 Connection of voltage inputs .......................................................... 44 Connection of voltage transformers................................................ 45 Voltage Transformer Connections .................................................. 46 Connection of Optional Remote I/O Modules ....................................... 48 Maximum configuration................................................................... 48 DSM303 remote advanced UMI module......................................... 49 Temperature sensor modules MET148-2 ....................................... 50 Analog output module MSA141 ...................................................... 51 Communication interface module ......................................................... 52 2-wire RS 485 network interface ACE949-2 ................................... 53 4-wire RS 485 network interface ACE959 ...................................... 54 Fiber optic interface ACE937.......................................................... 56 Implementation of the Modbus Network ..................................................... 57 Communications Wiring ....................................................................... 57 Biasing the Communications Link................................................... 57 Terminating the Communications Link ........................................... 58 Communications Interface Wiring................................................... 58 Remote Operation via Ethernet LAN .................................................... 61 Software ............................................................................................... 62 POWERLOGIC System Manager Software ......................................... 62 SECTION 4:

ii

OPERATION

Machine Interfaces ............................................................................ 63 Expert UMI (SFT2841) ............................................................................... 64 SFT2841 General screen organization ................................................ 65 SFT2841 Use of the software ............................................................... 66 Basic UMI on Relay .................................................................................... 67 Advanced UMI ............................................................................................ 68 Access Levels of Use ........................................................................... 68 Access to measured and calculated data (operator level) ................... 68 White keys for current operation .......................................................... 69 Blue keys for parameter and protection setting .................................... 72 Data Entry .................................................................................................. 75 s ............................................................................................ 75 General or Protection Settings Entry .................................................... 75 Default parameters, all applications ........................................................... 76 Commissioning ........................................................................................... 78 Principles and Methods ........................................................................ 78 Protection relay testing ................................................................... 78 Sepam commissioning tests ................................................................. 78 Testing and metering equipment required ...................................... 79 Pre-test Settings Check .................................................................. 81 Checking of phase current input connection ........................................ 82 Checking of residual current input connection ..................................... 83 Checking phase voltage input connection ............................................ 84 Checking of residual voltage input connection ..................................... 85 Logic Input and Output ......................................................................... 86 Validation of Protection Output and Custom Logic Functions ............. 87 Optional Module Connection ................................................................ 87 Test sheet Sepam series 40 ................................................................. 88 Shutdown of the base unit if problems are identified ............................ 89 Downgraded operation ......................................................................... 89 RTD fault .............................................................................................. 89 Other faults ........................................................................................... 90 Maintenance ......................................................................................... 90 Getting Technical .................................................................... 90

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

SECTION 1— INTRODUCTION MAIN FUNCTIONS

The Sepam 1000+ Digital Relay is manufactured by Merlin Gerin in . Merlin Gerin is a subsidiary of Schneider Electric, as is Square D. The Sepam 1000+ instruction materials shipped with your Sepam 1000+ contain all the information you will need to install and operate the Sepam 1000+. The Sepam 1000+ features a modular design, Input/Output (I/O) and temperature options, and Modbus communications for easy integration into a POWERLOGIC Power Monitoring and Control System. Two types of displays are available: the basic Machine Interface (UMI) and the Advanced UMI with LCD display.

© 2003 Schneider Electric All Rights Reserved

Figure 1:

Sepam 1000+—A modular solution

Figure 2:

Sepam 1000+ with basic UMI and with fixed advanced UMI 1

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Figure 3:

Example of an SFT2841 software screen (expert UMI)

The Sepam 1000+ series 20 family of protection and metering units is designed for the operation of machines and electrical distribution networks of industrial installations and utility substations for all levels of voltage. The Sepam 1000+ series 20 family consists of simple, high-performing solutions, suited to demanding applications that call for current or voltage metering.

Selector

Table 1:

Application Selector Guide

Criteria

Series 20

AC Measurements

I

Series 40*

V

V

I,V,P,E

81R dF/dt (RoCoF)

Specific Relay Functions Substation Long Feeder(High Ixc) Mains in Parallel Closed Loop Transformer Mains in Parallel Application Motor Long Feeder (High Ixc) Generator Busbar (Voltage Mon) Gen/Utility in Parallel *Not covered in this instruction bulletin. Note: Ixc = Capacitive

S20

I,V,P,E

I,V,P,E

67N,67NS 67,67N,67NS Dir Grd O/C Dir Grd O/C Dir Ph O/C S40 S41 S42 S42

T20

T40 T42

M20 M41 G40 B21 B22

Relay Logic Substation Feeder and Main: S Type

Transformer: T Type

Motor: M Type

2

• • •

Detection of phase-to-phase and phase-to-ground short circuits

• •

Detection of internal faults and overloads

• •

Detection of internal faults, network related, and load faults

Detection of unbalanced power source Recloser

Thermal overload protection suited to cooling modes

Monitoring of motor starting conditions

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Bus Voltage: B Type

Measurement

Sepam Series 20 Digital Relay

• •

Rate of change of frequency protection for a fast and reliable disconnection

All necessary electrical parameters:

• • • • • • Communication

Monitoring of voltage and frequency abnormal operating conditions

phase and residual currents average and peak demand currents phase-to-neutral, phase-to-phase, and residual voltages positive and negative sequence voltages frequency optional eight RTD inputs measure motor or transformer temperatures (two setpoints each)

Sepam series 20 is totally compatible with the Modbus communication standard. All the data needed for centralized equipment management from a remote monitoring and control system are available via the Modbus communication port:

• • Diagnosis

Control and monitoring

© 2003 Schneider Electric All Rights Reserved

reading: all measurements, alarms, protection settings,... writing: breaking device remote control orders,... .

3 types of diagnosis data for improved operation:

•

network and machine diagnosis: tripping current, context of the last 5 trips, unbalance ratio, disturbance recording

•

switchgear diagnosis: cumulative breaking current, trip circuit supervision, operating time.

•

diagnosis of the protection unit and additional modules: continuous selftesting, watchdog.

Circuit breaker program logic is ready to use, requiring no auxiliary relays or additional wiring.

3

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Sepam Series 20 Selection Table Functions

Type of Sepam Substation Transformer

Motor

Busbar

M20 4 4 1 2 1 1 1

B21 (4)

B22

2 1 2 1 2 2 2 1

2 1 2 1 2 2 2 1 1

Line voltage U21, U32, U13

b

b

Phase-to-neutral voltage V1, V2, V3

b

b

Residual voltage Vo

b

b

Positive sequence voltage / rotation direction

b

b

Frequency

b

b

b

b

v

v

b

b

Protections Phase overcurrent (1) Earth fault (or neutral) (1) Unbalance / negative sequence Thermal overload Phase undercurrent Excessive starting time, locked rotor Starts per hour Positive sequence undervoltage Remanent undervoltage Phase-to-phase undervoltage Phase-to-neutral undervoltage Maximum de tension composée Phase-to-phase overvoltage Underfrequency Overfrequency Rate of change of frequency Recloser (4 cycles) Thermostat / Buchholz Temperature monitoring (with MET148, 2 set points per sensor) Metering Phase current I1,I2,I3 RMS

ANSI code 50/51 50N/51N 50G/51G 46 49 RMS 37 48/51LR 66 27D/47 27R 27 27S 59 59N 81L 81H 81R 79

S20 4 4 1

T20 4 4 1 2

v

38/49T

v v

v

b

b

b

Residual current Io

b

b

b

Average current I1, I2, I3

b

b

b

Peak demand phase current IM1,IM2,IM3

b

b

b

Temperature measurement

v

v

b

Network and machine diagnosis Tripping current I1,I2,I3, Io

b

b

Unbalance ratio / negative sequence current Ii

b

b

b

Running hours counter / operating time

b

b

Thermal capacity used

b

b

Remaining operating time before overload tripping Waiting time after overload tripping

b

b

b

b

Starting current and time / overload

b

Start inhibit time delay, number of starts before inhibition Disturbance recording

b b

b

b

Switchgear diagnostic Cumulative breaking current2

b

b

b

Trip circuit supervision

v

v

v

Number of operations

v

v

v

Operating time

v

v

v

Charging time

v

v

v

b

b

b

Self-diagnosis Watchdog

4

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Output relay test (2)

v

v

v

v

v

Circuit breaker / or control (3)

v

v

v

v

v

Logic discrimination

v

v

v

4 addressable logic outputs

b

b

b

b

b

v

v

Control and monitoring

Additional modules MET148-2 module - 8 temperature sensor inputs

MSA141 module - 1 low level analog output v v v v v MES114, MES114E, or MES114F module - (10I/4O) v v v v v ACE949-2 module - (2-wire) or ACE959 (4-wire) RS 485 interface v v v v v b standard, v according to parameter setting and MES114 or MET148 input/output module options. (1) 4 relays with the exclusive possibility of logic discrimination or switching from one 2-relay group of settings to another 2-relay group (exclusive choice). (2) with advanced UMI option only. (3) for shunt trip unit or undervoltage release coil according to parameter setting. (4) performs B20 type functions.

MACHINE INTERFACE

2 levels of Machine Interface (UMI) are available depending on the ’s needs:

•

basic UMI: an economical solution for installations that do not require local operation (run via a remote monitoring and control system)

•

fixed or remote advanced UMI: a graphic LCD display and 9-key keypad are used to display the measurement and diagnosis values, alarm and operating messages and provide access to protection and parameter setting values, for installations that are operated locally.

EXPERT UMI SOFTWARE

© 2003 Schneider Electric All Rights Reserved

The SFT2841 PC software tool gives access to all the Sepam functions, with all the facilities and convenience provided by a Windows type environment.

5

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

SYMBOL KEY

Electrical symbols commonly used in Europe are found throughout this instruction bulletin. Those symbols, which may be unfamiliar to some s in North America, are explained below.

METRIC MEASUREMENTS/U.S. EQUIVALENTS

Some of the measurements provided in this instruction bulletin are metric. s in the United States may find the following conversion chart helpful.

Table 2:

Metric Conversions

Metric

equals

25.4 mm (millimeters)

=

0.4536 kg (kilograms)

=

1 pound

° C (Centigrade) x 1.8 + 32

=

° F (Fahrenheit)

Table 3:

1 inch

Wire Size Conversions

Metric Area mm2

6

U.S. Equivalent

equals

AWG Gauge

0.20

=

24

0.33

=

22

0.50

=

20

0.78

=

18

1.3

=

16

2.0

=

14

3.1

=

12

5.3

=

10

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

ELECTRICAL CHARACTERISTICS Anaputs Current transformer 1 A or 5 A CT (with CCA630) 1 A to 6250 A ratings

Voltage transformer 220 V to 250 kV ratings

input impedance consumption rated thermal withstand 1-second overload input impedance input voltage rated thermal withstand 1-second overload

< 0.001 Ω < 0.001 VA at 1 A < 0.025 VA at 5 A 3 In 100 In > 100 kΩ 100 to 230/ 3V 230 V (1.7 Unp) 480 V (3.6 Unp)

Temperature sensor input (MET148-2 module) Type of sensor Pt 100 / Ni 100 / Ni 120 Isolation from earth none Current injected in sensor 4 mA Logic inputs MES114 MES114E Voltage 24 to 250 V DC 110 to 125 V DC 110 V AC Range 19.2 to 275 V DC 88 to 150 V DC 88 to 132 V AC Frequency 47 to 63 Hz Typical 3 mA 3 mA 3 mA consumption Typical switching 14 V DC 82 V DC 58 V AC threshold Control output relays (O1, O2, O11 s) Voltage DC 24 / 48 V DC 127 V DC AC (47.5 to 63 Hz) Rated current 8A 8A Breaking resistive load 8/4A 0.7 A capacity L/R load < 20 ms 6/2A 0.5 A L/R load < 40 ms 4/1A 0.2 A resistive load p.f. load > 0.3 Making < 15 A for 200 ms capacity Indication output relays (O3, O4, O12, O13, O14 s) Voltage DC 24 / 48 V DC 127 V DC AC (47.5 to 63 Hz) Rated current 2A 2A Breaking L/R load < 20ms 2/1A 0.5 A capacity p.f. load > 0.3 Power supply max. burden (1) range deactivated burden(1) 24 / 250 V DC -20% +10% (19.2–275 V DC) 3 to 6 W 7 to 11 W 110 / 240 V AC -20% +10% (88–264 V AC) 3 to 9 VA 9 to 15 VA 47.5 to 63 Hz ride throughtime 10 ms Analog output (MSA141 module) Current 4 - 20 mA, 0 - 20 mA, 0 - 10 mA Load impedance < 600 Ω (wiring included) Accuracy 0.50% (1) according to configuration. (2) for higher values, please consult us.

© 2003 Schneider Electric All Rights Reserved

MES114F 220 to 250 V DC 176 to 275 V DC 3 mA

220 to 240 V AC 176 to 264 V AC 47 to 63 Hz 3 mA

154 V DC

120 V AC

220 V DC 8A 0.3 A 0.2 A 0.1 A -

220 V DC 2A 0.15 A -

100 to 240 V AC 8A

8A 5A

100 to 240 V AC 2A 1A inrush current < 10 A 10 ms < 15 A 1/2 period

7

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

ENVIRONMENTAL CHARACTERISTICS Electromagnetic compatibility

IEC / EN standard

Level / Class

Value

Emission tests Disturbing field emission Conducted disturbance emission Immunity tests – Radiated disturbances Immunity to radiated fields Electrostatic discharge

EN 55022 / CISPR22 EN 55022 / CISPR22

A B

60255-22-3 / 61000-4-3 60255-22-2 / 61000-4-2

III III

10 V/m 8 kV air 6 kV

Immunity tests – Conducted disturbances Immunity to conducted RF disturbances Fast transient bursts 1 MHz damped oscillating wave

61000-4-6 60255-22-4 / 61000-4-4 60255-22-1

III IV III

10 V

Impulse waves Voltage interruptions

61000-4-5 60255-11

III

IEC / EN standard

Level / Class

Value

60255-21-1 60255-21-2 60255-21-3

2 2 2

1 Gn 10 Gn / 11 ms

60255-21-1 60255-21-2 60255-21-2

2 (1) 2 (1) 2 (1)

2 Gn 30 Gn / 11 ms 20 Gn / 16 ms

Mechanical robustness In operation Vibrations Shocks Earthquakes De-energized Vibrations Shocks Jolts

Climatic withstand

2.5 kV MC 1 kV MD 100% 20 ms

IEC / EN standard

Level / Class

Value

In operation Exposure to cold Exposure to dry heat Continuous exposure to damp heat

60068.2.1 60068.2.2 60068.2.3

Ad Bd Ca

Temperature variation with specified variation rate

60068.2.14

Nb

-25°C +70°C 93% HR; 40°C 10 days –25 °C to +70 °C 5°C/min

Salt mist Influence of corrosion In storage (4) Exposure to cold Exposure to dry heat Continuous exposure to damp heat

60068-2-52 60654-4

Kb / 2

60068.2.1 60068.2.2 60068.2.3

Ab Bb Ca

-25 °C +70 °C 93% RH; 40 °C 56 days

IEC / EN standard

Level / Class

Value

60529

IP52

Other s closed, except for rear IP20

NEMA

Type 12 with gasket supplied

Standards Enclosure tests Front tightness

Fire withstand Electrical tests Ground continuity 1.2/50 µs impulse wave Power frequency dielectric withstand

Clean industrial air

60695-2-11

650°C with glow wire

61131-2 60255-5 60255-5

30 A 5 kV (2) 2 kV 1 mn (3)

Certification CE

generic standard EN 50081-2

UL UL508 - CSA C22.2 n° 14-95 CSA CSA C22.2 n° 94-M91 / n° 0.17-00 (1) Results given for intrinsic withstand, excluding equipment (2) Except for communication: 3 kV in common mode and 1kV in differential mode (3) Except for communication: 1 kVrms (4) Sepam must be stored in its original packing.

8

European directives 89/336/EEC Electromagnétic Compatibility (EMC) Directive 92/31/EEC Amendment 92/68/EEC Amendment 73/23/EEC Low Voltage Directive 93/68/EEC Amendment File E212533 File E210625

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

SECTION 2— SAFETY PRECAUTIONS This chapter contains important safety precautions that must be followed before attempting to install, operate, service, or maintain electrical equipment. Carefully read and follow the safety precautions outlined below.

DANGER HAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION • Only qualified workers should install this equipment. Such work should be performed only after reading this entire set of instructions. • NEVER work alone. • Turn off all power supplying this equipment before working on or inside. • Always use a properly rated voltage sensing device to confirm that all power is off. • Before performing visual inspections, tests, or maintenance on this equipment, disconnect all sources of electric power. Assume that all circuits are live until they have been completely de-energized, tested, and tagged. Pay particular attention to the design of the power system. Consider all sources of power, including the possibility of backfeeding. • Beware of potential hazards, wear personal protective equipment, carefully inspect the work area for tools and objects that may have been left inside the equipment. • Use caution while removing or installing s so that they do not extend into the energized bus; avoid handling the s, which could cause personal injury. • The successful operation of this equipment depends upon proper handling, installation, and operation. Neglecting fundamental installation requirements may lead to personal injury as well as damage to electrical equipment or other property. • Before performing Dielectric (Hi-Pot) or Megger testing on any equipment in which the relay is installed, disconnect all input and output wires to the relay. High voltage testing may damage electronic components contained in the relay. Failure to follow these instructions will result in death or serious injury.

© 2003 Schneider Electric All Rights Reserved

9

Sepam Series 20 Digital Relay

10

63230-216-208B1 7/2003

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

SECTION 3— INSTALLATION INSTALLATION OF SEPAM

We recommend that you follow the instructions given in this document for quick and correct installation of your Sepam Series 20:

• • • • • •

equipment identification assembly and mounting connection of current inputs and voltage inputs connection of optional modules connection of power supply and ground checking prior to commissioning.

EQUIPMENT IDENTIFICATION Sepam Model Identification

Using an advanced UMI, you can identify which Series 20 model you have by pressing the status key four times. See Figure 4. The model is identified as the "type."

on

I>51

I>>51 Io>51N Io>>51N

0 off

ext

I on Trip

About Sepam Type = T20

Sepam transfo 1 Sepam V0013 MSA141 V0001 UMI V0013 MET148 V0002

clear

reset

Status Key

Figure 4:

Identification Labels

Sepam Model Identification

To identify a Sepam, check the 2 labels on the right side of the base unit which describe the product’s functional and hardware features.

•

1

hardware reference and designation label

2

Machine Interface model

U

© 2003 Schneider Electric All Rights Reserved

NOTE: See Figure 5 on page 12 for the location of this label on the main unit.

11

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

•

software reference and designation label

2

2

NOTE: See Figure 5 for the location of this label on the main unit.

•

Label for units sold in the United States

3

A 4-alpha suffix denotes a deviation from one or more of these standard features: • • •

2

NOTE: See Figure 5 for the location of this label on the main unit.

1 and 2 (not shown)

Figure 5:

Package Labels

12

Second language = French Connection for CT Terminal blocks for A for ring lugs For example SP1M20A-USLS: • for Spanish • LPCT connector, and •

screw compression type TBs

3 (U.S. label)

Equipment label locations

If the relay is still in its original package, you can identify it by comparing catalog number information similar to label 3 above with the description in “Sepam Models” on page 14.

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Connectors

Sepam Series 20 Digital Relay

Each Sepam Series 20 main unit comes with one of the following unmounted connectors:

1. CCA 630* connector for connecting CTs to Sepam Series 20 (S20, T20, M20) MERLIN GERIN

* or CCA670 connector for LPCT sensors (See Figure 9 on page 39)

2. CCT640 voltage connector for VTs on Sepam Series 20 type B21, B22. See “Connection of voltage transformers” on page 45.

The other connectors come mounted and screw-locked on the modules.

© 2003 Schneider Electric All Rights Reserved

13

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

CAUTION LOSS OF PROTECTION If ac control power is used, a backup power source is recommended to supply control power to the Sepam 1000+ during a power outage. Failure to observe this precaution can cause the Sepam 1000+ to become inoperative if primary control power is lost.

Sepam Models Catalog Number

Description

Digital Relay SEPAM Series 20 (Main Unit) SP1 S20 A SP1 B21 A SP1 B22 A SP1 T20 A SP1 M20 A SP1 S20 B SP1 B21 B SP1 B22 B SP1 T20 B SP1 M20 B

S20 (substa),adv UMI, 24-250 Vdc&120-240 Vac① B21 (bus/voltage),adv UMI, 24-250 Vdc&120-240 Vac① B22 (bus/voltage),adv UMI, 24-250 Vdc&120-240 Vac① T20 (transf),adv UMI, 24-250 Vdc&120-240 Vac① M20 (motor),adv UMI, 24-250 Vdc&120-240 Vac① S20 (substa),basic UMI, 24-250 Vdc&120-240 Vac① B21 (bus/voltage),basic UMI, 24-250 Vdc&120-240 Vac① B22 (bus/voltage),basic UMI, 24-250 Vdc&120-240 Vac① T20 (transf),basic UMI, 24-250 Vdc&120-240 Vac① M20 (motor),basic UMI, 24-250 Vdc&120-240 Vac①

Accessories For Digital Relay SEPAM Series 20 MES114 MES114E MES114F MET1482 MSA141 DSM303 ACE959 ACE949-2 ACE937 CCA770 CCA772 CCA774 AMT840 CSH30 CSH120 CSH200 ACE990 ACE917 CCA613

10 input / 4 output module, 24–250 Vdc control power 10 input / 4 output module, 125 Vdc/120 Vac control power 10 input / 4 output module, 250 Vdc/240 Vac control power 8 RTD resistance temperature detector input module② Analog output module② Remote advanced UMI (requires cable CCA77x see below) RS485 4-wire interface module ③(req. ext. 24 Vdc control power) RS485 2-wire interface module ③(req. ext. 24 Vdc control power) 820 nM optical fiber interface module (control power supplied by Sepam main unit via CCA612 cable) 2 ft cable from analog I/O daisy chain to main unit② 2 m cable from analog I/O daisy chain to main unit② 4 m cable from analog I/O daisy chain to main unit② Assembly plate for surface mounting of main unit Interposing window CT for residual current input④ Ground sensor CT - 120 mm window Ground sensor CT - 200 mm window Aux. CT for ground sensor CT ratio adjustment (for retrofit) LPCT Injection Adaptor LPCT Test Plug

Tools For Digital Relay Sepam Series 20 SFT2841 kit Setting/operating software kit ➄ ①Ships with CCA630 CT connector (Figure 8 on page 34) [or CCA670 LPCT connector (see Figure 9 on page 39)] [or CCT640 VT connector (see “Connection of voltage transformers” on page 45)] and CCA622 terminal block (see Figure 7 on page 25). ②Analog I/O are DSM303, MET1482, MSA141. Maximum cable length from main unit to last device = 33 ft. (10 m). ③Includes CCA612 cable for module to relay connection. ④See 5A and 6A in “Ground Fault Current Measurement Method Summary without Neutral” on page 32 and 5B and 6B in “Ground Fault Current Measurement Method Summary with Neutral” on page 33. ➄Includes SFT2826 waveform S/W+CCA783 cable for PC to relay connection.

Note: Power Management Operation Technical for information on alternate control voltages, second language (other than French) on display, and special configuration. For technical information, see “Getting Technical ” on page 90.

14

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Package Contents

Sepam Series 20 Digital Relay

Your Sepam 1000+ base unit is shipped in a single package with its connectors: a CCA630 for CTs (or CCA670 for LPCTs) (or CCT640 for VTs), and a 20 point ring lug type terminal block (CCA620, see page 24) for control power, ground sensor input, and 4 main unit outputs. Instruction materials are also included (see “Instruction Materials” for details). Optional accessories such as modules, current, and voltage input connector and cables come in separate packages. NOTE: Sepam SFT 2841 software always ships in a separate package than the Sepam 1000+, even if ordered at the same time.

Instruction Materials

Your Sepam Series 20 is shipped with the following instruction documents:

•

Sepam 1000+ Installation Guide (this instruction bulletin), number 63230-216-208

• •

Sepam 1000+ Quick Start Guide, number 03146790FE-D0 Sheet/Registration Card, number 63220-060-79

This installation guide, the Sepam Series 20 Reference Guide 63230-216-224, and other instruction bulletins are available online at www.powerlogic.com.

© 2003 Schneider Electric All Rights Reserved

15

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

SHIPPING, HANDLING, AND STORAGE Sepam in its Original Packaging Transport: Sepam may be shipped to any destination without taking any additional precautions by all usual means of transport. Handling: Sepam may be handled without any particular care and can even withstand being dropped by a person handling it (person standing on floor). Storage: Sepam may be stored in its original packaging, in an appropriate location for several years: b temperature between -25 °C and +70 °C b humidity y 90 %. Periodic, yearly checking of the environment and the packaging condition is recommended. Once Sepam has been unpacked, it should be energized as soon as possible.

Sepam Installed in a Cubicle Transport: Sepam may be transported by all usual means of transport in the customary conditions used for cubicles. Storage conditions should be taken into consideration for a long period of transport. Handling: Should the Sepam fall out of a cubicle, check its condition by visual inspection and energizing. Storage: Keep the cubicle protection packing for as long as possible. Sepam, like all electronic units, should not be stored in a damp environment for more than a month. Sepam should be energized as quickly as possible. If this is not possible, the cubicle reheating system should be activated.

OPERATING ENVIRONMENT

MT11149

Operation in a damp environment The temperature/relative humidity factors must compatible with the unit’s environmental withstand characteristics. If the use conditions are outside the normal zone, arrangements should be made before commissioning, such as providing air conditioning of the premises.

Operation in a polluted atmosphere Sepam is designed to be used in a clean industrial environment as defined by IEC 60654-4 class 1. A contaminated industrial atmosphere components (such as the presence of chlorine, hydrofluoric acid, sulfur, solvents...) may cause corrosion of the electronic components, in which case environmental control arrangements should be made (such as closed, pressurized premises with filtered air, ...) before commissioning. 16

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

ASSEMBLY AND MOUNTING

DANGER HAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION • Only qualified personnel should install this equipment. Such work should be performed only after reading this entire set of instructions. • NEVER work alone. • Before performing visual inspections, tests, or maintenance on this equipment, disconnect all sources of electrical power. Assume that all circuits are live until they have been completely de-energized, tested, and tagged. Pay particular attention to the design of the power system. Consider all sources of power, including the possibility of backfeeding. • Turn off all power supplying the Sepam 1000+ and the equipment in which it is installed before installing and wiring the Sepam 1000+. Be aware that the Sepam 1000+ may be connected to a separate power source not derived from the equipment in which it is installed. • Always use a properly rated voltage sensing device to confirm that all power is off. • Beware of potential hazards, wear personal protective equipment, and carefully inspect the work areas for tools and objects that may have been left inside the equipment. Failure to follow this instruction will result in death or serious injury.

•

Main Unit The Sepam 1000+ main unit, whether equipped with basic or advanced UMI, flush mounts in a . Although an opening must be cut in the , no screws are necessary to mount the base unit. It is held in place by spring clips. For details, see “Flush-mounting in front ” on page 19. Note: the maximum thickness is 0.135 inches (3.4 mm). If used in conjunction with a remote advanced display, the main unit with basic UMI can also be surface mounted at the back of a compartment using the AMT840 plate. This allows access to the connectors on the back of the Sepam 1000+. For details, see “Surface Mounting with AMT840 plate” on page 20.

•

Machine Interface (UMI). There are two types: — Advanced UMI, with graphic LCD display alarm LEDs and keypad — Basic UMI, with LEDs and reset

For installation of the remote Advanced UMI (DSM 303), see “Flush Mounting of the DSM303 module in the front ” on page 21. NOTE: A remote advanced UMI connects to a main unit equipped with a basic UMI (see “Sepam Series 20 Selection Table” on page 4), and cannot be used with a main unit equipped with a fixed Advanced UMI. Each main unit associated with a remote advanced UMI must be configured to accept such a connection. Once configured, if the remote advanced UMI is disconnected, a self-test alarm issues and LEDs illuminate (see “Maintenance” on page 89).

•

Input/Output Module MES114, MES114E, or MES114F (optional) For installation of these input/output modules on the back of the main unit, see page 24.

© 2003 Schneider Electric All Rights Reserved

17

Sepam Series 20 Digital Relay

Mounting of the Sepam main unit

63230-216-208B1 7/2003

The Sepam is simply flush-mounted and clamped, without requiring any additional screw type fastening.

mounting clip

slot MT11164

1. Turn off all power supplying the Sepam 1000+ and the equipment in which it is installed before installing and wiring the Sepam 1000+. Be aware that the Sepam 1000+ may be connected to a separate power source not derived from the equipment in which it is installed. 2. Always use a properly rated voltage sensing device to confirm that all power is off. 3. Present the product as indicated, making sure the metal plate is correctly entered in the groove at the bottom. 4. Tilt the product and press on the top part to clamp it with the clips.

18

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Flush-mounting in front

Sepam Series 20 Digital Relay

Assembly shown with advanced UMI and optional MES114 module.

• •

Weight = env. 4.2 lb (1.9 kg) [with option] Weight = env. 3.3 lb (1.5 kg) [without option] front

Top view

6 15/16

6 19/64

(176)

(160)

MT11150

Side view

Cut-out 6 3/8 (162 ± 0.2)

8 3/4

7 51/64

(222)

(198)

7 61/64 (202 ± 0.2)

Mounting plate thickness < 0.135 in (3.4 mm).

MT11151

© 2003 Schneider Electric All Rights Reserved

1 7/32

3 7/8

(31)

(98) MT10461

19

Sepam Series 20 Digital Relay

Surface Mounting with AMT840 plate

63230-216-208B1 7/2003

•

Used to mount Sepam with basic UMI at the back of the compartment with access to connectors on the rear .

•

Assembly associated with the use of the remote advanced UMI (DSM303).

Front View

17/64 (6.5)

1 9/16 (40)

1 9/16 (40)

9 3/64 1 9/16 (230)

(40)

1 9/16 (40)

1 9/16 (40)

19/32

8 1/2

(15)

(216)

9 19/64 (236)

6 15/16 (176)

4 27/32 (123)

3 27/32 (98)

Top View

MT10332

20

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Flush Mounting of the DSM303 module in the front

Sepam Series 20 Digital Relay

The module is simply flush-mounted and clamped, without requiring any additional screw type fastening.

Spring Clips

) m in m 7 /32 1 (1 19

4

rrip et

res r clea

) m m 2 n i 6 (1 /8

6

(2

5

31

/3

3

mm )

2

in

Weight approximately 0.3 kg. The depth with the connection cable is less than 1 3/16 in (30 mm).

MT10344

Cut-out

5 21/32 in 144 mm

3 7/8 in 98.5 mm

Cut-out dimensions for flush-mounting (mounting plate thickness < .135 in [3.4 mm]). MT10321

© 2003 Schneider Electric All Rights Reserved

21

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Side view 13/32 in (10 mm)

mounting clamp

lateral outlet

3 25/32 in (96 mm)

4 19/32 in (117 mm)

19/32 in (15 mm) maximum depth with cable: 1 3/16 in (30 mm)

MT10463

22

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

CONNECTION

The Sepam connections are made to the removable connectors located on the rear surface. All the connectors are screw-lockable. NOTE: All the terminals must be screwed tight, whether or not they are used.

DANGER HAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION • Only qualified personnel should install this equipment. Such work should be performed only after reading this entire set of instructions. • Turn off all power supplying the Sepam 1000+ and the equipment in which it is installed before installing and wiring the Sepam 1000+. Be aware that the Sepam 1000+ may be connected to a separate power source not derived from the equipment in which it is installed. • Before wiring the main terminal block and installing the terminal guard shipped with the terminal block, turn off power to the Sepam 1000+ and any equipment wired to the terminal block. • Always use a properly rated voltage sensing device to confirm that all power is off. • The successful operation of this equipment depends upon proper handling, installation, setup, and operation. Neglecting fundamental installation requirements may lead to personal injury as well as damage to electrical equipment or other property. Failure to follow this instruction will result in death or serious injury. Sepam Components Optional input/output module (MES114)

1A/5A CT current input connector (CCA630) B or LPCT current input connector (CCA670) or VT voltage input connector (CCT640). Main unit

Main unit connector A [Screw-type connector shown (CCA620), or ring lug connector (CCA622).] MES114 module L M K connectors

CSH30, 120, 200 or ACE990 input

L

Output relays

B C M

A

K

MES114 module connector

24–250 Vdc or 100–240 Vac control power source

D

Remote inter-module D link connection (black)

Communication module C link connection (green)

MT10305

Figure 6:

© 2003 Schneider Electric All Rights Reserved

Sepam Components

23

Sepam Series 20 Digital Relay

Installing Terminal Guard on Main Terminal Block A (Ring Lug Terminals)

63230-216-208B1 7/2003

Terminal guards are shipped with each ring-lug type main terminal block. These guards must be installed after the terminal block is wired, but before the Sepam 1000+ and equipment wired to the module are energized. (See preceding DANGER notice.) These terminal guards are designed to prevent accidental with terminals once they are energized. To install the terminal guard, follow these steps while referring to the illustrations below: 1. Slightly loosen the two module mounting screws on the ends of the block. 2. Place the T-slot in the terminal guard over one of the mounting screws and pull it toward the center of the module until the mounting screw is in the narrow portion of the T-slot. Tighten the mounting screw. Gently flex the terminal guard as shown and slide the open slot on the terminal guard under the head of the mounting screw so the screw secures it in place. Release the terminal guard so it lies flat over the terminals. Tighten the mounting screw. The terminal guards should now be firmly in place, preventing accidental with the terminals they cover.

Terminal Guard

Connection of the Main Unit

•

Main Unit Ring Lug Connector CCA620 A (control power, configurable output s, self-test alarm, ground sensor CT input [see “Connecting CTs” on page 34.])

•

Digital Input/Output Modules with screw-type connection. See page 28.

Basic wiring components are shown in Figure 6. For specifics on wire gauge and fittings, refer to “Connection” on page 28. See typical AC schematic on page 29.

24

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

A

MT10478

base

Sepam Series 20 Digital Relay

The Sepam connections are made to the removable connectors located on the rear . All the connectors are screw-lockable. O1

5 4

O2

8 7

O3

11 10

O4

NOTE: All the terminals must be screwed tight, whether or not they are used.

Wiring of the CCA620 (Main) A connector:

15 14 13 1 2 17

+/~ –/~

b without fitting: v 1 wire with maximum cross-section of 0.2 to 2.5 mm2 (u AWG 24-12) or 2 wires with maximum cross-section of 0.2 to 1 mm2 (u AWG 24-16) v stripped length: 8 to 10 mm b with fitting: v recommended wiring with Telemecanique fitting: - DZ5CE015D for 1 wire 1.5 mm2 - DZ5CE025D for 1 wire 2.5 mm2 - AZ5DE010D for 2 wires 1 mm2 v tube length: 8.2 mm v stripped length: 8 mm.

Wiring of the CCA622 (Main) A connectors: b ring lug connectors 6.35 mm (1/4").

Characteristics of the 4 base unit relay outputs O1, O2, O3, O4. Figure 7:

CCA622 Connector

© 2003 Schneider Electric All Rights Reserved

b O1 and O2 are 2 control outputs, used by the breaking device control function for: v O1: breaking device tripping v O2: breaking device closing inhibition b O3 and O4 are indication outputs, only O4 may be activated by the watchdog function.

25

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Connection of Optional Input Output MES114 Module

PE10074

Function The 4 outputs included on the Sepam may be extended by adding an optional MES114 module with 10 inputs and 4 outputs, available in 3 versions: b MES114: 10 DC inputs voltage from from 24 V DC to 250 V DC b MES114E: 10 inputs, voltage 110-125 V AC or V DC b MES114F: 10 inputs, voltage 220-250 V AC or V DC The assignment of the inputs and outputs may be set up on the advanced UMI or using the SFT2841 software tool.

Characteristics MES114 module Weight Logical inputs Voltage Range

DE10226

Frequency Typical consumption

0.28 kg MES114 24 to 250 V DC 19.2 to 275 V DC / 3 mA

Typical switching 14 V DC threshold O11 control relay output Voltage Dc Ac (47.5 to 63 Hz) Continuous current Breaking capacity Resistive load Load L/R < 20 ms Load L/R < 40 ms Load cos ϕ > 0.3 Making capacity O12 to O14 indication relay output Voltage Dc Ac (47.5 to 63 Hz) Continuous current Breaking capacity Load L/R < 20 ms Load cos ϕ > 0.3 Making capacity

MES114E 110 to 125 V DC 88 to 150 VV DC / 3 mA 82 V DC

88 to 132 V AC 47 to 63 Hz 3 mA

MES114F 220 to 250 V DC 176 to 275 V DC / 3 mA

220 to 240 V AC 176 to 264 V AC 47 to 63 Hz 3 mA

58 V AC

154 V DC

120 V AC

110 V AC

24 / 48 V DC 127 V DC

220 V DC 100 to 240 V AC

8A 8/4A

8A 0.7 A

8A 0.3 A

6/2A

0.5 A

0.2 A

4/1A

0.2 A

0.1 A

8A 8A

5A < 15 A for 200 ms 24 / 48 V DC 127 V DC

220 V DC 100 to 240 V AC

2A 2/1A

2A 0.5 A

2A 0.15 A

2A

1A < 15 A for 200 ms

Description L , M and K : 3 removable, lockable screw-type connectors. L : connectors for 4 relay outputs:

b O11: 1 control relay output b O12 to O14: 3 indication relay outputs. M : connectors for 4 independent logic inputs I11 to I14 K : connectors for 6 logic inputs: b I21: 1 independent logic input b I22 to I26: 5 common point logic inputs. 1: 25-pin sub-D connector to connect the module to the base unit 2: voltage selector switche for MES114E and MES114F module inputs, to be set to: v V DC for 10 DC voltage inputs (default setting) v V AC for 10 AC voltage inputs. 3 : label to be filled in to indicate the chosen parameter setting for MES114E and MES114F input voltages. The parameter setting status may be accessed in the "Sepam Diagnosis" screen of the SFT2841 software tool. Parameter setting of the inputs for AC voltage (V AC setting) inhibits the "operating time measurement" function. 26

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

MT10479

Assembly 2

3

b insert the 2 pins on the MES module into the slots 1 on the base unit b flatten the module up against the base unit to plug it into the connector 2 b tighten the 3 mounting screws.

1

DE10227

Connection For safety reasons (access to dangerous voltages), all terminals must be screwed tight, whether or not they are used. The inputs are potential-free and the DC power supply source is external. Wiring of connectors L , M and K : b wiring without fitting: v 1 wire with maximum cross-section 0.2 to 2.5 mm² (> AWG 24-12) v or 2 wires with maximum cross-section 0.2 to 1 mm² (> AWG 24-16) v stripped length: 8 to 10 mm b wiring with fittings: v recommended wiring with Telemecanique fitting: - DZ5CE015D for one 1.5 mm² wire - DZ5CE025D for one 2.5 mm² wire - AZ5DE010D for two 1 mm² wires v tube length: 8.2 mm v stripped length: 8 mm.

© 2003 Schneider Electric All Rights Reserved

27

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

MT10480

MT10480

MES114

Output characteristics

L

O11

2 3

O12

5 6

O13

8 9

O14

11 12

4 relay outputs O11, O12, O13, O14 b O11: control output, used to close the breaking device b O12, O13, O14: indication outputs.

Input characteristics 4 or 10 potential-free inputs b DC input voltage, from 24 V DC to 250 V DC b external power supply source.

Connection M I11

1 2

I12

4 5

I13

7 8

I14

10 11 K

I21

I22

1 2 6

I23

7

I24

8

I25

9

I26

10 5 4

Wiring of the Circuit Breaker/or Trip Circuit

The optional input output modules are connected to screw type connectors. All the connectors are removable and may be locked by screw fastening. The inputs are potential-free and the DC power supply source is external. NOTE: All the terminals must be screwed tight, whether or not they are used. b wiring without fitting: v 1 wire with maximum cross-section of 0.2 to 2.5 mm2 (u AWG 24-12) or 2 wires with maximum cross-section of 0.2 to 1 mm2 (u AWG 24-16) v stripped length: 8 to 10 mm b wiring with fitting: v recommended wiring with Telemecanique fitting: - DZ5CE015D for 1 wire 1.5 mm2 - DZ5CE025D for 1 wire 2.5 mm2 - AZ5DE010D for 2 wires 1 mm2 v tube length: 8.2 mm v stripped length: 8 mm.

Wiring to be used when the "CB control" function is activated. D

A 5 O1

A + _

5

O1

4

4 M

M 1

I11 I12

2 4 5

Wiring for shunt trip coil. With monitoring of trip circuit and open/closed matching.

+ _ D

1

I11 I12

2 4 5

Wiring for undervoltage trip unit. With monitoring of open / closed matching.

MT10146 MT10147

28

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Connection of Current Inputs MT11157

L1 L2 L3

A

4 1

B

5 2 6 3

S20

T20

M20

46 50 51 79 50N 51N

46 49 50 51 50N 51N

37 46 49 50 51 66 50N 51N 51LR

O1

5 4

O2

8 7

O3

11 10 15 14 13

O4

1 2 17

A

18 19

C

to communication network interface

D

to optional modules

communication

(1) This type of connection allows the calculation of residual voltage. (2) See “Symbol Key” on page 6.

Table 4:

Types S20 /T20 / M20

Connection to 1 A / 5 A current sensors Connector A

Type Screwtype

Ref. CCA620

Cable 1 wire 0.2 to 2.5 mm2 (≥ AWG 24-12) 2 wires 0.2 to 1 mm2 (≥ AWG 24-16)

Ring lug CCA622 6.35 mm B

Ring lug 4 mm

C

RJ45

CCA630

1.5 to 6 mm2 (AWG 16 to AWG 10) CCA612 CCA770: L = 0.6 m

D

RJ45

CCA772: L = 2 m CCA774: L = 4 m

© 2003 Schneider Electric All Rights Reserved

29

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Other Current Input Connection Schemes

Variant 1: phase current measurement by three 1 A or 5 A CTs (standard connection) MT11078

Connection of three 1 A or 5 A CTs to the CCA630 connector. The measurement of the 3 phase currents allows the calculation of residual current.

Variant 2: phase current measurement by two 1 A or 5 A CTs Mt11074

Connection of two 1 A or 5 A CTs to the CCA630 connector. The measurement of phase currents 1 and 3 is sufficient to ensure all the currentbased protection functions. This arrangement does not allow the calculation of residual current.

MT11077

Variant 3: phase current measurement by 3 LPCT type sensors Connection of 3 Low Power Current Transducer (LPCT) type sensors to the CCA670 connector. The connection of just one or two sensors is not allowed. The measurement of the 3 phase currents allows the calculation of residual current. The In parameter, primary rated current measured by an LPCT, is to be chosen from the following values, in Amps: 25, 50, 100, 125, 133, 200, 250, 320, 400, 500, 630, 666, 1000, 1600, 2000, 3150. Parameter to be set using the advanced UMI and the SFT2841 software tool, to be completed by hardware setting of the microswitches on the CCA670 connector.

30

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Other residual current input connection schemes

Variant 1: residual current calculation by sum of 3 phase currents The residual current is obtained by taking the vector sum of the 3 phase currents I1, I2 and I3, measured by three 1 A or 5 A CTs or by three LPCT type sensors. See current input connection diagrams.

Variant 2: residual current measurement by CSH120 or CSH200 core balance CT (standard connection) MT11079

Arrangement recommended for the protection of isolated or compensated neutral systems in which very low fault currents need to be detected. Setting range from 0.1 Ino to 15 Ino, with Ino = 2 A or 20 A according to parameter setting.

Variant 3: residual current measurement by 1 A or 5 A CT and CSH30 interposing ring CT MT11158

The CSH30 interposing ring CT is used to connect Sepam to 1 A or 5 A CTs to measure the residual current. b connection of CSH30 interposing ring CT to 1 A CT: make 2 turns through the CSH primary winding b connection of CSH30 interposing ring CT to 5 A CT: make 4 turns through the CSH primary winding

MT11159

Setting range from 0.1 In to 15 In, with In = CT primary current.

MT11160

Variant 4: residual current measurement by core balance CT with ratio 1/n (n between 50 and 1500) The ACE990 is used as an interface between a Medium Voltage core balance CT with ratio 1/n (50 < n < 1500) and the Sepam 1000+ residual current input. This arrangement makes it possible to keep the existing core balance CTs in the installation.

ABC

Core bal. n turns Ea En

S1 S2

© 2003 Schneider Electric All Rights Reserved

Setting range from 0.1 Ino to 15 Ino, with Ino = k x n, with n = number of turns through core balance CT and k = factor to be determined according to the wiring of the ACE990 and the parameter setting used by Sepam, among 20 discrete values from 0.00578 to 0.26316.

31

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Ground Fault Current Measurement Method Summary without Neutral

Method Measurement Number Method 1A (applies for LPCT also)

Internal Phase Current Summation

Setting Range

Core Bal. CT

DT=0.1 Ino to 15 Ino

None

Residual Current Setting

Connections

“3I Sum” B

A

C 4 1 5 2 6 3

IDMT=0.1 Ino to Ino

Remark Sepam 1000+ Considers Ino=In

Sepam 1000+

1 A or 5 A CT B

2A

4A

Specific CSH Core DT=0.2 A to 30 A CSH 120 Balance CT On 2 A CSH 200 IDMT=0.2 A to 2 A Input Rating Specific CSH Core DT=2 A to 300 A Balance CT On 20 IDMT=2 A to 20 A A Input Rating

CSH 120 CSH 200

B

A

“2 A Rated Sepam 1000+ CSH” (2 A Core Considers Ino=2 A Bal. CT)

C

P1

S2

18

P2

S1

19

Sepam 1000+

“20 A Rated CSH (20 A Core Bal. CT)

Sepam 1000+ Considers Ino=20 A

A

Shield

5A*

Standard 1 A CT or DT=0.1 Ino to 15 5 A CT Ino IDMT=0.1 Ino to Ino

1 A/5 A CT Core Balance CT + CSH 30 Aux CT as interface

CSH Core Balance CT

B

A

“1 A CT + CSH” Primary Rated or 5 ACT + Current: 1 A to 6.25 CSH kA Ino=In

C

P1

S1

P2

S2

5 A = 4 Turns 1 A = 2 Turns 18 P1 S2

P2 S1 CSH 30 CT

Sepam 1000+

19 A

Shield

6A*

External Sum of Phase CT Secondaries (1 A or 5 A)

DT=0.1 Ino to 15 Ino IDMT=0.1 Ino to Ino

CSH 30 Core Balance CT as Interface

A

B

“1 A CT + CSH” Set Sepam 1000+ or “5 A CT + For Ino=In (Primary CSH” Rated Current: 1 A to 6.25 kA)

C

P2 S1 5 A CTs

P1 S2 CSH 30 Core Balance CT

4 1 5 2 6 3 B

18

Sepam 1000+ 19 5 A CT: 4 Turn 1 A CT: 2 Turns

7A

Standard 1 A CT or DT=0.1 Ino to 15 5 A CT Ino IDMT=0.1 Ino to Ino

1 A/5 A Core Balance CT + ACE 990

A

5 A CT + ACE 1 A CT + ACE

ABC

Core bal. n turns Ea En

Ino=k x N N=CT turns .00578 ≤ K ≤.26316 (See page 43.)

S1 S2

*See alternate CSH30 secondary connection on page 42.

32

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Ground Fault Current Measurement Method Summary with Neutral

Method Measurement Number Method 2B

4B

Setting Range

Core Bal. CT

Specific CSH Core DT=0.2 A to 30 A CSH 120 Balance CT On 2 A CSH 200 IDMT=0.2 A to 2 A Input Rating Specific CSH Core DT=2 A to 300 A Balance CT On 20 IDMT=2 A to 20 A A Input Rating

CSH 120 CSH 200

Residual Current Setting

Connections

Remark

“2 A Rated Sepam 1000+ CSH” (2 A Core Considers Ino=2 A Bal. CT)

A B C N

P1

S2

18

P2

S1

19

Sepam 1000+

“20 A Rated CSH (20 A Core Bal. CT)

Sepam 1000+ Considers Ino=20 A

A

Shield

5B*

Standard 1 A CT or DT=0.1 Ino to 15 5 A CT Ino IDMT=0.1 Ino to Ino

1 A/5 A CT Core Balance CT + CSH 30 Aux CT as interface

CSH Core Balance CT

“1 A CT + CSH” Primary Rated or 5 ACT + Current: 1 A to 6.25 CSH kA Ino=In

A B C N

P1

S1

P2

S2

5 A = 4 Turns 1 A = 2 Turns 18 P1 S2

P2 S1 CSH 30 CT

Sepam 1000+

19 A

Shield

6B*

External Sum of Phase CT Secondaries (1 A or 5 A)

DT=0.1 Ino to 15 Ino IDMT=0.1 Ino to Ino

CSH 30 Core Balance CT as Interface

A

“1 A CT + CSH” Set Sepam 1000+ or “5 A CT + For Ino=In (Primary CSH” Rated Current: 1 A to 6.25 kA)

B C N 4 1 5 2 6 3 B P2 S1

1 A CTs

P1 CSH 30 S2 Core Balance CT

5 A CT: 4 Turn

18

Sepam 1000+ 19 A

7B

Standard 1 A CT or DT=0.1 Ino to 15 5 A CT Ino IDMT=0.1 Ino to Ino

1 A/5 A Core Balance CT + ACE 990

5 A CT + ACE 1 A CT + ACE

ABCN

Core bal. n turns Ea En

Ino=k x N N=CT turns .00578 ≤ K ≤.26316 (See page 43.)

S1 S2

*See alternate CSH30 secondary connection on page 42.

© 2003 Schneider Electric All Rights Reserved

33

Sepam Series 20 Digital Relay

Connecting CTs

63230-216-208B1 7/2003

Phase currents are measured by connecting two or three CTs via CCA630 (see “CCA630 wiring” on page 36). Ground fault currents can be measured externally by connecting a Current Transformer (CT). Four types of CTs are available:

•

Interposing window CT for residual or standard ground sensor current input (CSH30)

• • •

Ground Sensor CT—120 mm window (CSH120) Ground Sensor CT—200 mm window (CSH200) Auxiliary CT for Ground Sensor CT Ratio Adjustment (ACE990)—for retrofit applications (see “Connection of ACE990 interface” on page 43).

These ground fault CTs provide low-level input to the Sepam 1000+ to allow connector A (see Figure 6 on page 23) to be disconnected from the Sepam 1000+ without shorting. Refer to the Ground Fault Current Measurement Method Summary on the next two pages for all CTs listed above except the ACE990. The current transformer (1 A or 5 A) secondary circuits are connected to the CCA630 connector, item B .

MT10171

Figure 8:

34

CCA630 CT Connector

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

The connector contains 3 interposing ring CTs with through primaries, which ensure impedance matching and isolation between the 1 A or 5 A circuits and Sepam. The connector may be disconnected with the power on since disconnection does not open the CT secondary circuits.

EM B4 B1

P1

L1

B5 B2

P2

L2 L3

B6 B3

(1)

CCA630 Sepam current imputs

1

2

3

1) bridging strap supplied with the CCA630.

MT10464

© 2003 Schneider Electric All Rights Reserved

35

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

CCA630 wiring

DANGER HAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION • If you want to remove current inputs to the Sepam Series 20, unplug connector CCA 630 without disconnecting wires from the connectors. • You must short out the CT before disconnecting secondary leads. • Follow proper procedures regarding CT secondary wiring. Never opencircuit the secondary of a CT. Failure to follow this instruction will result in death or serious injury. 1. Turn off all power supplying the Sepam 1000+ and the equipment in which it is installed before installing and wiring the Sepam 1000+. Be aware that the Sepam 1000+ may be connected to a separate power source not derived from the equipment in which it is installed. 2. Always use a properly rated voltage sensing device to confirm that all power is off. 3. Open the 2 side shields for access to the connection terminals. The shields may be removed, if necessary, to make wiring easier. If removed, they must be replaced after wiring. 4. Remove the bridging strap, if necessary. The strap links terminals 1, 2 and 3. 5. Connect the wires using 3 mm ring lugs. The connector accommodates wires with cross-sections of 1.5 to 6 mm2 (AWG 16 to AWG 10). 6. Close the side shields 7. Plug the connector into the 9-pin inlet on the rear , item B 8. Tighten the 2 CCA630 connector fastening screws on the rear of Sepam 1000+.

MT10318

36

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Connecting LPCTs CLP1 LPCT sensors MT11003

CLP1 sensors are voltage-output current sensors of the Low Power Current Transducer (LPCT) type, compliant with the IEC 60044-8 standard. CLP1 sensors are designed to measure rated currents of between 100 and 1250 A, with a ratio of 100 A / 22.5 mV, and may be used on networks with a maximum of 17.5 kV. The secondary winding of the CLP1 sensor is pre-equipped with a 5-m long shielded cable fitted with an RJ45 connector, which is connected to the 9-pin sub-D connector B on Sepam via a CCA670 interface connector, mounted on the rear of the Sepam 1000+ base unit. Characteristics

CLP1 sensor.

Rated primary current Rated secondary voltage Rated primary extended current Measurement accuracy class Protection accuracy class Rated accuracy limit primary current Accuracy burden Rated thermal short-circuit current

100 A 22.5 mV 1250 A 0.5 5P 40 kA ≥ 2 kΩ 31.5 kA x 4 s - 40 kA x 3 s

Rated voltage (Um) Rated power frequency withstand voltage Rated lightning impulse withstand voltage (BIL) Weight

17.5 kV 38 kV - 42 kV 95 kV 8 kg

ACE917 injection adapter MT11055

The ACE917 adapter is used to test the circuit illustrated at left with a standard injection box, when Sepam 1000+ is connected to LPCT sensors. The ACE917 adapter is inserted between: b the standard injection box, which delivers a 1 A secondary current b the LPCT test plug: v integrated in the Sepam 1000+ CCA670 connector v or transferred by means of the CCA613 accessory.

Accessory connection principle.

The following are supplied with the ACE917 injection adapter: b 220 V AC power supply cord b 3-meter ACE917 / LPCT test plug on CCA670 or CCA613 connection cord.

CCA613 remote test plug

MT11028

MT11056

MT11022

The CCA613 test plug, -mounted on the front of the cubicle and fitted with a 3meter cord, is used to transfer data from the integrated test plug to the CCA670 interface connector on the rear of Sepam 1000+.

67,5

69

46

44

Front view with cover lifted. Right side view.

© 2003 Schneider Electric All Rights Reserved

Cutout.

37

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

LPCT sensor block and connection diagram The LPCT current transformers (CVv 120 or CVv 200 sensors) are connected to the CCA 670 connector mounted on the rear of Sepam 1000+ item B .

B

Setting up the CCA670 connector The CCA 670 connector should be calibrated when the Sepam 1000 is commissioned according to the following instructions (see Variant 3 on page 30): +

1. Turn off all power supplying the Sepam 1000+ and the equipment in which it is installed before installing and wiring the Sepam 1000+. Be aware that the Sepam 1000+ may be connected to a separate power source not derived from the equipment in which it is installed. 2. Always use a properly rated voltage sensing device to confirm that all power is off. 3. DIP switches must be set before attaching the CCA 670 phase current sensor module to the Sepam 1000+. Ensure the DIP switches are pushed completely UP or DOWN. Switches in in-between positions will result in random settings. 4. Use a screwdriver to remove the shield located in the “LPCT settings” zone; the shield protects 3 blocks of 8 microswitches marked L1, L2, L3, 5. On the L1 block, set the microswitch for the selected rated current to “1”, — The rated current must be same as the one set up in Sepam (“General characteristics” menu via SFT 2841 software, “Current sensors” screen via advanced UMI). — Leave the other 7 switches set to “0”. 6. Set the other 2 switch blocks L2 and L3 in the same position as the L1 block and close the shield again. 7. Install onto the Sepam unit.

CAUTION HAZARD OF UNINTENDED OPERATION • DIP switches must be set before attaching the CCA 670 phase current sensor module to the Sepam 1000+. • Ensure the DIP switches are pushed completely UP or DOWN. Switches in in-between positions will result in random settings. Failure to correctly set DIP switches before attaching the phase current sensor module can result in unintended operation of the trip output s.

38

© 2003 Schneider Electric All Rights Reserved

Sepam Series 20 Digital Relay

LPCT T settings L1 L2 L3

63230-216-208B1 7/2003

25 & 125 A 50 & 250 A 100 & 500 A 133 & 666 A

1

0

1

0 0 0 0 0 0 0

0

1

0 0

Correspondence between microswitch settings and the selected rated current In (2 possible values per setting).

0 0 0 0 0 0

1

0 0 0

0 0 0 0 0

1

0 0 0 0

320 & 1600 A 630 & 3150 A 0 0 0 0 0 0 0 1

L3

L1 = L2 = L3

origin :

Connection of the cables of the 3 CVv sensors to the connectors on the side of the CCA 670.

L1

Check plug

L2

LPCT plugs

59631 LPCT T current input connector connecteur entrée courant LPCT CCA A 670

Injection kit connector.

Figure 9:

CCA670 LPCT Connector

This illustrates connection of three LPCT type current transfomers with CCA670 connector (the sensors are equipped with standard connection cords: length = 5 m). MT10484

L1 L2 L3

L1

B

L2 L3

CCA670

© 2003 Schneider Electric All Rights Reserved

39

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Connection of Ground Fault CTs

Use of CSH120 and CSH200 core balance CTs

E40466

E40465

MT10315

The only difference between the CSH120 and CSH200 core balance CTs is their inner diameter (120 mm and 200 mm). Due to their low voltage isolation, they may only be used on cables fully insulated to system voltage.

Assembly

Assembly on mounting plate.

Group the MV cable (or cables) in the middle of the core balance CT. Use non-conductive binding to hold the cable. to insert the 3 medium voltage cable shielding grounding cables through the core balance CT.

MT10466

CSH120 and CSH200 connection diagram P1 S2

CSH core balance CT

S1 P2

metal shielding of grounded cable

1

2

3

MT10339

Assembly on MV cables.

Wiring The CSH120 or CSH200 core balance CT is connected to Sepam’s 20-pin connector (item A ). Recommended cable: b sheathed cable, shielded by tinned copper braid b min. cable cross-section 0.93 mm2 (AWG 18) b resistance per unit length < 100 milli ohms/m b min. dielectric strength: 1000 V. Connect the connector cable shielding in the shortest manner possible to terminal 18 on Sepam. Flatten the connection cable from the CT to the relay against the metal frames of the cubicle. The connection cable shielding is grounded in Sepam. Do not ground the cable by any other means. The maximum resistance of the Sepam connection wiring must not be more than 4 Ω.

Cable shield grounding.

CAUTION POTENTIAL OF INDUCED VOLTAGE • Grounding the shield at any other point may create a ground loop, causing high currents on the shield. • Before grounding the shield, insulate the ungrounded end. Failure to follow these instructions will result in unintended operation.

40

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

MT10467

MT10328

Dimensions

4 horizontal mounting holes 5

P1 A

18 19

REF

S2

S1 P2

1

2

3

4 vertical mounting holes 5

CAUTION POTENTIAL OF INDUCED VOLTAGE • Grounding the shield at any other point may create a ground loop, causing high currents on the shield. • Before grounding the shield, insulate the ungrounded end. Failure to follow these instructions will result in unintended operation.

Dimensions in inches (mm)

Weight

CSH 120

0.6 kg (1.32 lb.)

A 4 23/32 (120) CSH 200

B 6 15/32 (164)

7 7/8 (200)

10 3/32 (256)

D 1 23/32 (44)

E 7 15/32 (190)

F 76

H 40

J 166

K 62

L 35 1.4 kg (3.08 lb.)

1 13/16 (46)

© 2003 Schneider Electric All Rights Reserved

10 25/32 (274)

120

60

257

104

37

41

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Use of CSH30 interposing ring CT

Vertical assembly.

Wiring The secondary winding of the CSH30 is connected to the connector, item A . Cable to be used: b sheathed cable, shielded by tinned copper braid b min. cable cross-section 0.93 mm2 (AWG 18) (max. 2.5 mm2) b resistance per unit length < 100 mohm/m b min. dielectric strength: 1000 V. It is essential for the CSH30 interposing ring CT to be installed near Sepam (Sepam CSH30 link less than 2 m). Flatten the cable against the metal frames of the cubicle. The connection cable shielding is grounded in Sepam. Do not ground the cable by any other means.

4 turns A

18 19

REF

S2

P1 S1

P1

S1

P2 S2

P2

CSH30 interposing ring CT

5A core bal. CT

1

2

Horizonal assembly.

3

Connection to 5 A secondary circuit

Connection to 1 A secondary circuit

MT10331

Example with 5 A CT.

CAUTION

MT10333

MT10468

Connection diagram The CSH30 is made to adapt to the type of 1 A or 5 A current transformer by the number of turns of the secondary wiring in the CSH30 interposing ring CT: b 5 A rating - 4 turns b 1 A rating - 2 turns.

E44717

E40468

Assembly

The CSH30 interposing ring CT should be used when residual current is measured by a current transformer with a secondary circuit (1 A or 5 A). It acts as an interface between the current transformer and the Sepam residual current input. The CSH30 interposing ring CT is mounted on a symmetrical DIN rail. It may also be mounted on a plate by means of the mounting holes in its base.

POTENTIAL OF INDUCED VOLTAGE • Grounding the shield at any other point may create a ground loop, causing high currents on the shield. • Before grounding the shield, insulate the ungrounded end. Failure to follow these instructions will result in unintended operation.

b plug into the connector b insert the transformer secondary wire through the CSH30 interposing ring CT 4 times.

b plug into the connector b insert the transformer secondary wire through the CSH30 interposing ring CT 2 times.

Dimensions 60

RECOMMENDED CABLE= 2/C SHIELDED, TWISTED, PAIR >22 AWG (<30 OHM/1000 ') 1000 V DIELECTRIC STRENGTH CONNECTED AS SHOWN BELOW

29

MT10469

SEPAM 1000+

8

4

A17

50 82 A18 A19

S2

42

5 2

4.5

S1

2

CSH30 INTERPOSING CT

Alternate CSH30 secondary connection

16

4.5

Weight: 0.12 kg.

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Example: The core balance CT used has a ratio of 1/400, 2 VA. If the current being monitored is between 0.5 A and 60 A, a close approximation of the rated current Ino may be 5 A. This value may be used to accurately measure from 0.5 A to 75 A. Calculate the ratio :

approx. Ino number of turns

In the table opposite, find the closest value of k. 5/400 = 0.0125 close value k = 0.01136. It correspoinds to core balance CTs with more than 0.1 VA of power. The Ino value to be set is: Ino = 0.01136 x 400 = 4.5 A This Ino value may be used to monitor a current between 0.45 A and 67.5 A. The secondary circuit of the MV core balance CT is wired to ACE990 terminals E2 and E4. Characteristics b accuracy: amplitude: ±1% phase: < 2° b maximum permissible current: 20 kA 1 s (on primary of MV core balance CT with ratio 1/50 that does not saturate) b operating temperature: -5°C +55°C b storage temperature: -25°C +70°C. (1) current value for which the required setting range extends to between 10% and 1500% of this value, at the most. (2) parameter setting and adjustment of Ino current as a multiple of 0.1 A may be accessed from the SFT 2841 software tool or from the advanced UMI (general characteristics).

© 2003 Schneider Electric All Rights Reserved

Mounted on symmetrical DIN rail, weight 640 g.

MT10470

Use To wire the ACE 990 interface correctly, it is necessary to know the following: b ratio of the core balance CT (1/n) b core balance CT power b close approximation of the rated current Ino(1). The table opposite may be used to determine the possible choices for the connection of the ACE990 interface primary circuit to the Sepam residual current input, as well as the rated residual current setting Ino. The exact value of the rated current Ino(1) to be set is given by the following formula: Ino = k x number of core balance CT turns with k the factor defined in the table opposite.

MT10341

Connection of ACE990 interface The ACE990 is used to match the measurement of a MV core balance CT with ratio 1/n (50 y n y 1500) with that of the Sepam residual current input. So as not to downgrade measurement accuracy, the MV core balance CT must be able to supply sufficient power. The value is given in the table opposite.

Value of k 0.00578 0.00676 0.00885 0.00909 0.01136 0.01587 0.01667 0.02000 0.02632 0.04000

ACE990 input E1 – E5 E2 – E5 E1 – E4 E3 – E5 E2 – E4 E1 – E3 E4 – E5 E3 – E4 E2 – E3 E1 – E2

Choice of Sepam residual current(2) ACE990 - range 1 ACE990 - range 1 ACE990 - range 1 ACE990 - range 1 ACE990 - range 1 ACE990 - range 1 ACE990 - range 1 ACE990 - range 1 ACE990 - range 1 ACE990 - range 1

Min. MV core bal. CT power 0.1 VA 0.1 VA 0.1 VA 0.1 VA 0.1 VA 0.1 VA 0.1 VA 0.1 VA 0.1 VA 0.2 VA

0.05780 0.06757 0.08850 0.09091 0.11364 0.15873 0.16667 0.20000 0.26316

E1 – E5 E2 – E5 E1 – E4 E3 – E5 E2 – E4 E1 – E3 E4 – E5 E3 – E4 E2 – E3

ACE990 - range 2 ACE990 - range 2 ACE990 - range 2 ACE990 - range 2 ACE990 - range 2 ACE990 - range 2 ACE990 - range 2 ACE990 - range 2 ACE990 - range 2

2.5 VA 2.5 VA 3.0 VA 3.0 VA 3.0 VA 4.5 VA 4.5 VA 5.5 VA 7.5 VA

Wiring Only one core balance CT may be connected to the ACE990 interface. The secondary circuit of the MV core balance CT is connected to 2 of the 5 ACE990 interface inputs. The core balance CT must be connected to the interface in the right direction for correct operation, in particular S1 on the MV core balance CT must be connected to the terminal with the lowest index (Ex). See Variant 4 on page 31. Cables to be used: b cable between the core balance CT and the ACE990: length less than 50 m b sheathed cable, shielded by tined copper braid between the ACE990 and Sepam: maximum length 2 m b cable cross-section between 0.93 mm2 (AWG 18) and 2.5 mm2 (AWG 13) b resistance per unit length less than 100 mW/m b minimum dielectric strength: 100 V. Connect the ACE990 connection cable shielding in the shortest manner possible (maximum 2 cm) to pin 18 of the connector A . Flatten the cable from the CT to the relay against the metal frames of the cubicle. The connection cable shielding is grounded in Sepam. Do not ground the cable by any other means.

43

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Connection of voltage inputs

B21 and B22 types L1 L2 L3

B

(1) 1 2 3 4 5 6 7 8

B21

B22

27 27S 47 59 27D 27R 59N 81H 81L

27 27S 47 59 27D 27R 59N 81H 81L 81R

(2)

A

O1

5 4

O2

8 7

O3

11 10 15 14 13

O4

1 2 17

C

to communication network interface

D

to optional modules

communication

(1) This connection allows the residual voltage to be calculated. (2) CCT640 connector earthing terminal.

44

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Connection of voltage transformers The phase and residual voltage transformer secondary circuits are connected to the CCT640 connector, item B on B2X type Sepam units.

CCT640 The connector contains 4 transformers which provide impedance matching and isolation between the VTs and Sepam 1000+ input circuits. Terminals B1 to B6 are intended for phase voltage measurement (1), and B7 and B8 for residual voltage measurement (case shown, not connected if obtained by the sum of the 3 phase voltages). MT10512

L1 L2 L3 (1)

B1 B2

CCT640 V1

B3 V2

B4 B5

V3

B6 B7

Vo

B8

Sepam inputs

(1) 1, 2 or 3 VTs (case shown).

Installation of the CCT640 connector b insert the 2 connector pins into the slots 1 on the base unit b flatten the connector against the unit to plug it into the 9-pin SUB-D connector (principle similar to that of the MES module) b tighten the mounting screw 2 .

Connection b the connections are made to the screw type connectors that may be accessed on the rear of the CCT640 (item 3 ) b wiring without fitting: v 1 wire with maximum cross-section of 0.2 to 2.5 mm2 (u AWG 24-12) or 2 wires with maximum cross-section of 0.2 to 1 mm2 (u AWG 24-16) v stripped length: 8 to 10 mm b wiring with fitting: v recommended wiring with Telemecanique fitting: - DZ5CE015D for 1 wire 1.5 mm2 - DZ5CE025D for 1 wire 2.5 mm2 - AZ5DE010D for 2 wires 1 mm2 v tube length: 8.2 mm v stripped length: 8 mm b the CCT640 must be earthed (by green/yellow wire + ring lug) on the screw 4 (safety in case the CCT640 become unplugged).

12 11

O14

9 8

O13

6 5

O12

3 2

O11

CSH 19 18 17 15 14 13

11 10 8 7

© 2003 Schneider Electric All Rights Reserved

MT10514

MT10513

2

B

I14 I26 I25 I24 I13 I23 I22

5 4

I12

2 1

I11 I21

10 9 8 7 6 5 4

O4

11 10

O3

8 7

O2

5 4 2 1

O1 -/ +/

1

2 1

45

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Voltage Transformer Connections The phase and residual voltage transformer secondary circuits are connected to the CCT640 connector item B on B21 or B22 type Sepam Series 20 units.

Variant 1: measurement of 3 phase-to-neutral voltages (standard connection) MT11080

L1 L2 L3 (1)

B1 B2

CCT640 V1

B3 V2

B4

Phase voltage sensor parameter setting Residual voltage sensor parameter setting Voltages measured Values calculated

3V 3V sum V1, V2, V3 U21, U32, U13, Vo, Vd, Vi, f

Measurements available Protection functions available (according to type of Sepam)

All All

B5 V3

B6 B7

Vo

B8

Sepam inputs

MT11081

Variant 2: measurement of 3 phase-to-neutral voltages and residual voltage L1 L2 L3

Phase voltage sensor parameter setting Residual voltage sensor parameter setting Voltages measured Values calculated

3V External VT V1, V2, V3, Vo U21, U32, U13, Vd, Vi, f

Measurements available Protection functions available (according to type of Sepam)

All All

(1)

B

1 2 3 4 5 6 7 8

(2)

Variant 3: measurement of 2 phase-to-phase voltages and residual voltage L1 L2 L3

1 2 3 4 5 6 7 8

B

Phase voltage sensor parameter setting Residual voltage sensor parameter setting Voltages measured Values calculated

U21, U32 External VT U21, U32, Vo U13, V1, V2, V3, Vd, Vi, f

Measurements available Protection functions available (according to type of Sepam)

All All

(2)

Variant 4: measurement of 2 phase-to-phase voltages MT11082

L1 L2 L3

1 2 3 4 5 6 7 8

B

Phase voltage sensor parameter setting Residual voltage sensor parameter setting Voltages measured Values calculated

U21, U32 None U21, U32 U13, Vd, Vi, f

Measurements unavailable Protection functions unavailable (according to type of Sepam)

V1, V2, V3, Vo 59N

(2)

46

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

MT11083

Variant 5: measurement of 1 phase-to-phase voltage and residual voltage L1 L2 L3

1 2 3 4 5 6 7 8

B

Phase voltage sensor parameter setting Residual voltage sensor parameter setting Voltages measured Values calculated

U21 External VT U21, Vo f

Measurements unavailable Protection functions unavailable (according to type of Sepam)

U32, U13, V1, V2, V3, Vd, Vi 27D, 27S

(2)

Mt11084

Variant 6: measurement of 1 phase-to-phase voltage L1 L2 L3

1 2 3 4 5 6 7 8

B

Phase voltage sensor parameter setting Residual voltage sensor parameter setting Voltages measured Values calculated

U21 None U21 f

Measurements unavailable Protection functions unavailable (according to type of Sepam)

U32, U13, V1, V2, V3, Vo, Vd, Vi 27D 59N, 27S

(2)

1) Measurement of phase voltages with 1, 2 or 3 VTs (case shown). (2) CCT640 connector earthing terminal.

© 2003 Schneider Electric All Rights Reserved

47

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Connection of Optional Remote I/O Modules The optional MET148-2, MSA141 or DSM303 modules are connected to the base unit connector D by a series of links using prefabricated cables which come in 3 different lengths with black fittings. b CCA770 (L = 0.6 m) b CCA772 (L = 2 m) b CCA774 (L = 4 m). The DSM303 module may only be connected at the end of the series.

Maximum configuration A maximum of three modules may be connected to the base unit, in compliance with the module order and maximum connection lengths indicated in the table: Base

Module 1

Cable

Module 2

Cable

Module 3

CCA772 (2 m)

MSA141

CCA770 (0.6 m)

MET148-2

CCA774 (4 m)

DSM303

MERLIN GERIN

Cable

LIN0 GERIN 100 MER am LIN 0 MER sep

am

100

MT10471

sep

D

CCA772

C

I>51

Dd CCA612 Da

CCA770

MSA141 module

Dd Trip Io 0o

Da 51n Io>

51n Io>>

ex

n

ff

t

51 I>>

on

module ACE949-2 (2-wire) or ACE959 (4-wire)

MET148 module

CCA772 or CCA774

2A 16 = 61A 1 I1 = 63A 2 1 I = I3

rese clea

t

r

DSM303

48

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

DSM303 remote advanced UMI module MT10996

The DSM303 module provides the same functional features as the fixed advanced UMI. Associated with a Sepam 1000+ with a basic UMI, it may be installed on the front of the cubicle in the most suitable operating location. b depth of 30 mm b a single module for each Sepam 1000+ with a basic UMI, to be connected by one of the CCA772 (2 meter) or CCA774 (4 meter) prefabricated cables. This module may not be connected to Sepam 1000+ units with integrated advanced UMIs.

DSM303 remote advanced UMI module.

© 2003 Schneider Electric All Rights Reserved

49

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Temperature sensor modules MET148-2

Function PE10069

The MET148-2 module may be used to connect 8 temperature sensors (RTDs) of the same type: b Pt100, Ni100 or Ni120 type RTDs, according to parameter setting b 3-wire temperature sensors b a single module for each Sepam series 20 base unit, to be connected by one of the CCA770, CCA772 or CCA774 cords (0.6 or 2 or 4 meters)) The temperature measurement (e.g. in a transformer or motor winding) is utilized by the following protection functions: b thermal overload (to take ambient termperature into ) b temperature monitoring.

MET148-2 temperature sensor module.

Characteristics MET148-2 module Weight Assembly Operating temperature Environmental characteristics RTDs Isolation from earth Current injected in RTD

0.2 kg On symmetrical DIN rail -25 °C to +70 °C Same characteristics as Sepam base units Pt100 Ni100 / Ni120 None None 4 mA 4 mA

Description and dimensions DE10216

A Terminal block for RTDs 1 to 4. B Terminal block for RTDs 5 to 8. Da RJ45 connector to connect the module to the base unit with a CCA77x cord. Dd RJ45 connector to link up the next remote module with a CCA77x cord

(according to application). t Grounding/earthing terminal.

1

2

Jumper for impedance matching with load resistor (Rc), to be set to: b Rc , if the module is not the last interlinked module (default position) b Rc, if the module is the last interlinked module. Jumper used to select module number, to be set to: b MET1: 1st MET148-2 module, to measure temperatures T1 to T8 (default position).

Connection Connection of the earthing terminal By tinned copper braid or cable fitted with a 4 mm ring lug.

DE10217

(1) 70 mm with CCA77x cable connected.

Connection of RTDs to screw-type connectors b 1 wire with cross-section 0.2 to 2.5 mm² (u AWG 24-12) b or 2 wires with cross-section 0.2 to 1 mm² (u AWG 24-16). Recommended cross-sections according to distance: b up to 100 m ≥ 1 mm², AWG 16 b up to 300 m ≥ 1.5 mm², AWG 14 b up to 1 km ≥ 2.5 mm², AWG 12. Wriring precautions b it is preferable to use shielded cables The use of unshielded cables may cause measurement errors, which vary in degree on the level of surrounding electromagnetic disturbance b only connect the shielding at the MET148-2 end, in the shortest manner possible, to the corresponding terminals of connectors A and B b do not connect the shielding at the RTD end. Accuracy derating according to wiring The error ∆t is proportional to the length of the cable and inversely proportional to the cable cross-section: L ( km )∆t ( ° C ) = 2 × --------------------2 S ( mm ) b ±2.1 °C/km for 0.93 mm² cross-section b ±1 °C/km for 1.92 mm² cross-section.

50

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Analog output module MSA141

PE10070

Function

MSA141 analog output module.

The MSA141 module converts one of the Sepam measurements into an analog signal: b selection of the measurement to be converted by parameter setting b 0-10 mA, 4-20 mA, 0-20 mA analog signal according to parameter setting b scaling of the analog signal by setting minimum and maximum values of the converted measurement. Example: the setting used to have phase current 1 as a 0-10 mA analog output with a dynamic range of 0 to 300 A is: v minimum value = 0 v maximum value = 3000 b a single module for each Sepam base unit, to be connected by one of the CCA770, CCA772 or CCA774 cords (0.6 or 2 or 4 meters). The analog output may also be remotely managed via the Modbus communication network.

Characteristics MSA141 module Weight Assembly Operating temperature Environmental characteristics Analog output Current Scaling (no data input checking) Load impedance Accuracy Measurements available Phase and residual currents Phase-to-neutral and phase-to-phase voltages Frequency Thermal capacity used Temperatures Remote setting via communication link

0.2 kg On symmetrical DIN rail -25°C to +70°C Same characteristics as Sepam base units 4-20 mA, 0-20 mA, 0-10 mA Minimum value Maximum value < 600 Ω (wiring included) 0.5 % Unit Series 20 0.1 A b 1V b 0.01 Hz 1% 1°C

b b b b

DE10218

Description and dimensions A Terminal block for analog output. Da RJ45 connector to connect the module to the base unit with a CCA77x cord. Dd RJ45 connector to link up the next remote module with a CCA77x cord

(according to application). t Grounding/earthing terminal.

1

Jumper for impedance matching with load resistor (Rc), to be set to: b Rc , if the module is not the last interlinked module (default position) b Rc, if the module is the last interlinked module.

Connection Earthing terminal connection By tinned copper braid or cable fitted with a 4 mm ring lug.

DE10219

(1) 70 mm with CCA77x cord connected.

© 2003 Schneider Electric All Rights Reserved

Connection of analog output to screw-type connector b 1 wire with cross-section 0.2 to 2.5 mm² (u AWG 24-12) b or 2 wires with cross-section 0.2 to 1 mm² (u AWG 24-16). Wiring precautions b it is preferable to use shielded cables b use tinned copper braid to connect the shielding at least at the MSA141 end.

51

Sepam Series 20 Digital Relay

Communication interface module

63230-216-208B1 7/2003

These modules are used for simple, dependable commissioning of the RS 485 link according to 2 connection topologies:

• •

2-wire network with the ACE 949-2 module 4-wire network with the ACE 959 module

The RS 485 communication interfaces are supplied, via the network cable, by a single accessory that may be used to connect up to 25 units according to the chart below:

•

These values are obtained with a standard AWG 24 2-pair cable with a resistance load per unit length of 78 1/2 Ω / km.

• •

Tolerance with distributed power supply: ± 10%. Values multiplied by 3 with a maximum of 1300 m with a specific cable; reference FILECA F2644-1; Schneider-approved.

For additional communications information, see “Communications Interface Wiring” on page 58. For information on the commissioning of the RS 485 network and the characteristics of the recommended cables, refer to “RS 485 Network Connection Guide“ PCRED399074EN.

52

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

2-wire RS 485 network interface ACE949-2

Function PE10071

The ACE949-2 interface performs 2 functions: b electrical interface between Sepam and a 2-wire RS 485 communication network b main network cable branching box for the connection of a Sepam with a CCA612 cord.

Characteristics ACE949-2 module Weight Assembly Operating temperature Environmental characteristics 2-wire RS 485 electrical interface Standard Distributed power supply Consumption

ACE949-2 2-wire RS 485 network connection interface.

0.1 kg On symmetrical DIN rail -25°C to +70°C Same characteristics as Sepam base units EIA 2-wire RS 485 differential External, 12 V DC or 24 V DC ±10 % 16 mA in receiving mode 40 mA maximum in sending mode

DE10220

Maximum length of 2-wire RS 485 network with standard cable Number of Sepam units

Maximum length with Maximum length with 12 V DC power supply 24 V DC power supply 5 320 m 1000 m 10 180 m 750 m 20 160 m 450 m 25 125 m 375 m Note: lengths multiplied by 3 with FILECA F2644-1 high-performance cable.

Description and dimensions A and B Terminal blocks for network cable. C RJ45 plug to connect the interface to the base unit with a CCA612 cord. t Grounding/earthing terminal.

1

(1) 70 mm with CCA612 cord connected.

DE50350

2

12 or 24 Vdc Dais y chain

V+

3

V-

ACE949-2

L+ L1

A

C CCA612

2

3m Cable to Sepam

3 4

1

RC

2

RC

3

1

4

12 or 24 Vdc V+ Dais y chain VL+ L-

Green LED, flashes when communication is active (sending or receiving in progress). Jumper for RS 485 network line-end impedance matching with load resistor (Rc), to be set to: b Rc , if the module is not at one end of the RS 485 network (default position) b Rc, if the module is at one end of the RS 485 network. Network cable clamps (inner diameter of clamp = 6 mm).

B

Connection b connection of network cable to screw-type terminal blocks A and B b connection of earthing terminal by tinned copper braid or cable fitted with 4 mm ring lug b the interfaces are fitted with clamps to hold the network cable and recover shielding at the incoming and outgoing points of the network cable: v the network cable must be stripped v the cable shielding braid must be around and in with the clamp b the interface is to be connected to connector C on the base unit using a CCA612 cord (length = 3 m, green fittings) b the interfaces are to be supplied with 12 V DC or 24 V DC b refer to the "Sepam - RS 485 network connection guide " PCRED399074EN for all the details on how to implement a complete RS 485 network.

NOTE: When modules are linked together, the jumper 1 should be put in the RC (load resistance) position on the last module in the series. The modules are delivered in the position RC .

© 2003 Schneider Electric All Rights Reserved

53

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

4-wire RS 485 network interface ACE959

Function PE10072

The ACE959 interface performs 2 functions: b electrical interface between Sepam and a 4-wire RS 485 communication network b main network cable branching box for the connection of a Sepam with a CCA612 cord.

Characteristics ACE959 module

ACE959 4-wire RS 485 network connection interface.

Weight Assembly Operating temperature Environmental characteristics 4-wire RS 485 electrical interface Standard Distributed power supply Consumption

0.2 kg On symmetrical DIN rail -25°C to +70°C Same characteristics as Sepam base units

DE10222

EIA 4-wire RS 485 differential External, 12 V DC or 24 V DC ±10 % 16 mA in receiving mode 40 mA maximum in sending mode Maximum length of 4-wire RS 485 network with standard cable Number of Sepam units

Maximum length with Maximum length with 12 V DC power supply 24 V DC power supply 5 320 m 1000 m 10 180 m 750 m 20 160 m 450 m 25 125 m 375 m Note: lengths multiplied by 3 with FILECA F3644-1 high-performance cable.

Description and dimensions A and B Terminal blocks for network cable. C RJ45 plug to connect the interface to the base unit with a CCA612 cord. D Terminal block for a separate auxiliary power supply (12 V DC or 24 V DC). t Grounding/earthing terminal.

1 (1) 70 mm with CCA612 cord connected.

DE50351

2

54

3

Green LED, flashes when communication is active (sending or receiving in progress). Jumper for RS 485 network line-end impedance matching with load resistor (Rc), to be set to: b Rc , if the module is not at one end of the RS 485 network (default position) b Rc, if the module is at one end of the RS 485 network. Network cable clamps (inner diameter of clamp = 6 mm).

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

DE50351

Tx+ TxRx+

ACE959

A

RxV-

12 or 24 Vdc Dais y chain

C

1

V+

CCA612

2

3m Cable to Sepam

3 4 5 6

12 or 24 Vdc ext. power source

V-

1

V+

2

D (2)

(4) RC RC RC

Tx+

RC

TxRx+

T X R X

B

Rx-

1

V-

12 or 24 Vdc Dais y chain

V+

(4)

Rx+, Rx- : receiving Sepam (eq IN+, IN-) Tx+, Tx- : sending Sepam (eq OUT+, OUT-)

Connection b connection of network cable to screw-type terminal blocks A and B b connection of earthing terminal by tinned copper braid or cable fitted with 4 mm ring lug b the interfaces are fitted with clamps to hold the network cable and recover shielding at the incoming and outgoing points of the network cable: v the network cable must be stripped v the cable shielding braid must be around and in with the clamp b the interface is to be connected to connector C on the base unit using a CCA612 cord (length = 3 m, green fittings) b the interfaces are to be supplied with 12 V DC or 24 V DC b the ACE959 can be connected to a separate distributed power supply (not included in shielded cable). Terminal block D is used to connect the distributed power supply module b refer to the "Sepam - RS 485 network connection guide" PCRED399074EN for all the details on how to implement a complete RS 485 network.

(1) Distributed power supply with separate wiring or included in the shielded cord (3 pairs). (2) Terminal block for connection of the module that provides the distributed power supply. (3) Use a braid or cable equipped with a 4 mm ring lug. (4) When modules are linked together without DSM303, the jumper (4) should be put in the RC (load resistance) position on the last module in the series (MET148 or MSA141). The modules are delivered in the position RC .

© 2003 Schneider Electric All Rights Reserved

55

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Fiber optic interface ACE937

Function PE10073

The ACE937 interface is used to connect Sepam to a fiber optic communication star system. This remote module is connected to the Sepam base unit by a CCA612 cord.

Characteristics ACE937 module Weight Assembly Power supply Operating temperature Environmental characteristics ACE937 fiber optic connection interface.

Fiber optic interface Wavelength Type of connector Fiber type Fiber optic Numerical diameter (µm) aperture (NA) 50/125 62.5/125 100/140 200 (HCS)

0.2 0.275 0.3 0.37

0.1 kg On symmetrical DIN rail Supplied by Sepam -25°C to +70°C Same characteristics as Sepam base units

820 nm (infra-red) ST Multimode glass Maximum Minimum optical attenuation power available (dBm) (dBm/km) 2.7 5.6 3.2 9.4 4 14.9 6 19.2

Maximum length of fiber (m) 700 1800 2800 2600

Maximum length calculated with: b minimum optical power available b maximum fiber attenuation b losses in 2 ST connectors: 0.6 dBm b optical power margin: 3 dBm (according to IEC60870 standard). Example for a 62.5/125 µm fiber Lmax = (9.4 - 3 -0.6) / 3.2 = 1.8 km.

Description and dimensions DE10224

C RJ 45 plug to connect the interface to the base unit with a CCA612 cord.

1 2 3

Green LED, flashes when communication is active (sending or receiving in progress).. Rx, female ST type connector (Sepam receiving). Tx, female ST type connector (Sepam sending).

(1) 70 mm with CCA612 cord connected.

DE10225

Connection b the sending and receiving fiber optics fibers must be equipped with male ST type connectors b fiber optics screw-locked to Rx and Tx connectors b the interface is to be connected to connector C on the base unit using a CCA612 cord (length = 3 m, green fittings)

56

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

IMPLEMENTATION OF THE MODBUS NETWORK

Sepam Series 20 Digital Relay

A set of adapted accessories is used for fast, dependable implementation of the communication network from both the electrical and environmental (electromagnetic compatibility) viewpoints. 1

2

3 MERLIN GERIN

MERLIN GERIN

4 MERLIN GERIN

➀ Network connection interface, to be supplied by 12 V DC or 24 V DC distributed power supply b ACE949-2 for 2-wire RS 485 networks b or ACE959 for 4-wire RS 485 networks. ➁ CCA612 cable for connection of the interface to the C port of the Sepam base unit. ➂ Interface for connection of the RS 485 network to the Modbus master, with distributed power supply to the ACE949-2 interfaces and polarization/termination of the communication link b ACE909-2, 2-wire RS 485 / RS 232 converter b or ACE919CA (110 V AC or 220 V AC) 2-wire RS 485/2-wire RS 485 interface b or ACE919CC (24 V DC or 48 V DC) 2-wire RS 485/2-wire RS 485 interface. ➃ Modbus network cable b for 2-wire RS 485 network: two shielded twisted pairs (1 RS 485 pair, 1 pair for power suuply) b for 4-wire RS 485 network: three shielded twisted pairs (2 RS 485 pairs, 1 pair for power supply) b with tinned copper braiding shielding, coverage: > 65% b characteristic impedance: 120 Ω b gauge: AWG 24 b resistance per unit length: < 100 Ω/km b capacitance between conductors: < 60 pF/m b capacitance between conductor and shielding: < 100 pF/m b maximum length: 1300 m. Example of standard cable (for 2-wire RS 485 network): b supplier: BELDEN reference: 9842 or 8723 b supplier: FILOTEX reference: FMA-2PS. High-performance cable (for 2-wire RS 485 network): b supplier: FILECA reference: F2644-1 (cable distributed by Schneider Electric in 60 m strands, reference CCR301). For more information, refer to the "Sepam - RS 485 network connection guide" PCRED399074EN.

Communications Wiring Biasing the Communications Link

To ensure reliable communications, you must bias the POWERLOGIC communications link (if biasing is not in the system master nor an interfacing RS232/485 converter). Use a Multipoint Communications Adapter (MCA485) biasing device. Place the adapter between the first device on the link and the communications port of the PC. The illustration below shows installation of the adapter when the first device on the link is a Sepam 1000+ relay. One set of biasing resistors is required per daisy chain. On the Black Box converter IC109A-R2, these can be activated by a switch. Other converters

© 2003 Schneider Electric All Rights Reserved

57

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

should be checked for configurable biasing. Biasing is recommended at or near the system master.

ACE959 Communications Interface

RX+ RX–

To Next POWERLOGIC Device

TX+ TX–

SHLD

Belden 8723 Green

IN+

20

White

IN–

21

Red

OUT+

22

Black

OUT–

23

Shield

SHLD

24 DB9 Female

RS-485 Terminals To Port C on Sepam 1000+

MCA-485

CAB-107

DB9 Male

To Comm Port of Converter without Biasing Provisions

DB9 Female

C 5-Position Terminal Block

Connecting a Sepam 1000+ as the first device on a POWERLOGIC daisy chain using CAB107 cable, MCA-485, and terminal block

Terminating the Communications Link

To ensure reliable communications, terminate the last device on a POWERLOGIC communications link. The illustration below shows MCT-485 terminator placement when the final device on the link is a POWERLOGIC device. If the last device is a Sepam 1000+, see page 55 for termination instructions. NOTE: If a communications link contains only a single device, it must be terminated. If a link contains multiple devices, as in the illustration on page 60, only the last device must be terminated. One pair of terminating resistors is required at each end of an RS485 4-wire daisy chain. This can be accomplished by setting the movable jumpers on the ACE959 communications interface, the switches on Black Box converter IC109A-R2, or, for series 2000 circuit monitors, using a Multipoint Communication Adapter MCT-485. For series 4000 circuit monitors and series 600 power meters with screw-type terminals, use an MCTAS-485 (or an MCT-485 with a terminal block). Refer to the instruction bulletin for the specific device for more details.

POWERLOGIC Device (Last Device on Link) MCT-485 Terminator (Class 3090)

Terminal Block

Belden 8723 Cable

RS-485 Terminals

SHLD OUT-

-

OUT+ ININ+

Terminating a device using an MCT-485 and a terminal block

Communications Interface Wiring

58

For information on Communications Wiring starting at Port C on the base unit, see page 48 and page 52. In North America, 4-wire communications wiring is recommended using the ACE959 communications interface.

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

This interface requires external 12/24 Vdc control power. See “Communication interface module” on page 52 for information on wiring the ACE959. The illustrations on the following pages show typical communications network connections.

CAB108NL (DB9 Male)

ACE959 CAB107 Communications (DB9 Female) Interface

3 4

2 ft. (0.6 m) max.

1 2

N/C

RX+ RXTX+ TXVV+

3

RX+ (Green) RX– (White)

4 1 2

TX+ (Red) TX– (Black)

5

5 4 3 2

To Next Sepam 1000+

C CCA 612

To Port C On Sepam 1000+

D

Green

20

White

21

RX–

Out+

Red

22

TX+

Out–

Black

23

TX–

RX+

24

To Next Sepam 1000+

1 2 See "Shield and V+ V- Grounding" note below To 24 Vdc Reliable Source

POWERLOGIC System Manager Software (SMS)

TR

RXB TXA

In+ In–

Shld

1

Terminator MCT-485

6

BR TXB

CM-4000 Circuit Monitor

Black

6

Red

White

5

Green

PM-600 Power Meter

B

A

RXA

RS232 Port

BlackBox IC109A-R2 RS232/485 Converter

Standard RS232 Cable

DB9 RS-232 Port

DB25

Notes:

•

Shield and Grounding— The shield is broken between two grounded shield termination points. Leave the shield intact from source until just before next shield ground. See Figure 11 on page 60 for more information.

• • •

BR=Biasing Resistor. Also known as Polarizing Resistor (RP). TR= Terminating Resistor (also known as RC). Tie-back and tape shield are not connected at this end. Figure 10:

© 2003 Schneider Electric All Rights Reserved

Typical Serial Communications Application

59

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Cable Pinouts Cable pinouts for CAB-107 and CAB-108 cables are shown below.

Equipment #2

Equipment #1 Sepam 1000+

System PC

Equipment #25

Sepam 1000+

No. 1

Sepam 1000+

No. 2

No. 25

CCA612

CCA612

CCA612 ACE959 RS232 RS485 Shield *N/C RS232/RS485 Converter & Power Supply TR

110 Vac

TR

ACE959

ACE959

TR

TR

*N/C

Shield *N/C

Shield

BR

RS485

*Tie-back and tape shield are not connected at this end.

Notes: ■ RS485 cable is 4-wire plus shield. 2-wire power (24 Vdc) is also required. Recommended cable: ❏ Belden 9841 (1 pair-signal) ❏ Belden 9842 or 8723 (2 pair-signal) ❏ Belden 8760 (1 pair #18-power) or 8719 (1 pair #16-power) ❏ Fileca F3644-1 (2 pair signal/1 pair power) ■ Shield is broken between two grounded shield termination points (typical). Leave the shield intact from source until just before next shield ground. ■ Up to 25 Sepam 1000+ relays (maximum) on daisy chain. ■ TR=Terminating Resistor ■ Two TRs are required at each end of an RS485 4-wire diasy chain (can be accomplished by setting the movable jumpers on Sepam module ACE959, the switches on Black Box converter IC109A-R2, or, for series 2000 circuit monitors, using a Multipoint Communications Adapter MCT-485). For series 4000 circuit monitors and series 600 power meters with a screw-type terminal block, use an MCTAS-485 (or an MCT-485 with a terminal block). Refer to the device instruction bulletin for more details. ■ BR= Biasing Resistor ■ One BR set required per daisy chain (accomplish by setting switch on Black Box converter IC109A-R2; other converters should be checked for configurable biasing [recommended at or near system master]). ■ One recommended RS232/RS485 Converter is Black Box IC109A-R2 (power supply separate).

Figure 11:

60

Network Daisy Chain Practices (including Shield Grounding)

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Remote Operation via Ethernet LAN

The illustration below shows a typical POWERLOGIC Power Monitoring and Control System using Ethernet as the high-speed backbone to collect information from various devices and to allow the data to be shared by multiple s on different PCs.

Windows NT SMS 3000 Server

10BaseT Ethernet Hub

RJ-45 Connector

Cat. 5 UTP Cable 328 ft (100 m) max. Cat. 5 UTP Cable 328 ft (100 m) max

PC with Network Interface Card Static IP Address 101.101.228.40

RJ-45 Connector RJ Ethernet Crossover Cable

2- or 4-Wire RS-485

Terminator

10BaseT Ethernet Hub CM4000 Circuit Monitor with ECC Static IP Address 101.101.228.29

Windows NT or 98 SMS 1000 Client

Cat. 5 UTP Cable 328 ft (100 m) max.

DC150 Gateway to Internal Bus POWERLOGIC System Devices Including Sepam 1000+ Relays

Cat. 5 UTP Cable 328 ft (100 m) max.

PC with Network Interface Card 2- or 4-Wire RS-485

Circuit Monitor CM4000 with ECC Static IP Address 101.101.228.30

POWERLOGIC System Devices Including Sepam 1000+ Relays

10Base T Star Topology with Ethernet Communications Card (ECC) installed in Circuit Monitor Series 4000

© 2003 Schneider Electric All Rights Reserved

61

Sepam Series 20 Digital Relay

Software

63230-216-208B1 7/2003

The setting/operation software kit (number SFT2841) includes parameter setting and operating software as well as fault waveform recovery software SFT2826. A cable for connecting a computer to a basic or an advanced UMI is also included. In addition to the basic and advanced UMIs, you may see references in this document to an "expert UMI." The term "expert UMI" refers to a basic or an advanced UMI used in conjunction with SFT2841 software.

POWERLOGIC System Manager Software

62

POWERLOGIC System Manager Software can also be used with the Sepam Series 20. For information, refer to Sepam 1000+ device type in a POWERLOGIC system, document number 63230-218-200/A1.

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

SECTION 4— OPERATION MACHINE INTERFACES Two different levels of machine interface (UMI) are offered on the front of Sepam: b basic UMI, with signal LEDs, for installations operated via a remote system with no need for local operation b advanced UMI, with keypad and graphic LCD display, giving access to all the information necessary for local operation and Sepam parameter setting. The UMI on the front of Sepam may be complemented by an expert UMI comprising the SFT2841 PC software tool, which may be used for all Sepam parameter setting, local operation and customization functions. The expert UMI comes as a kit, the “SFT2841” kit, which includes: b a CD-ROM, with v SFT2841 setting and operation software v SFT2826 fault recording file display software b CCA783 cable, for connection between the PC and the serial port on the front of Sepam.

MT10802

Sepam1000+ base unit with fixed advanced UMI

Trip n

Io ff 0o

51n Io>

51n Io>>

t ex

51 I>> I > 51

on

2A 16 = 61A 1 I1 = 63A 1 I2 = I3

rese clea

CCA783

t

r

N RLI MepEam

RIN GE

s

SFT2841 parameter setting and operating software SFT2826 disturbance recording display software

© 2003 Schneider Electric All Rights Reserved

63

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Current operation b display of all metering and operation data b display of alarm messages with the time of appearance (date, hour, mn, s, ms) [more than advanced UMI] (2) b updating time and date when connected to relay (2) b display of diagnosis data such as: tripping current, number of switchgear operations and cumulative breaking current b display of all the protection and parameter settings b display of the logic status of inputs, outputs and signal lamps. This UMI is the solution suited to occasional local operation, for demanding personnel who require fast access to all the information. Parameter and protection setting (1) b display and setting of all the parameters of each protection function in the same page b program logic parameter setting, parameter setting of general installation and Sepam data b input data may be prepared ahead of time and transferred into the corresponding Sepam units in a single operation (ing function). (2)

Example of a measurement display screen.

MT11191

The expert UMI is available (as a complement to the basic or advanced UMI integrated in the product) on the screen of a PC equipped with the SFT2841 software tool and connected to the RS 232 port on the front of Sepam (run in a Windows ≥ V95 or NT environment). All the data used for the same task are grouped together in the same screen to facilitate operation. Menus and icons are used for fast, direct access to the required information.

Mt11190

EXPERT UMI (SFT2841)

Main functions performed by SFT2841: b changing of s (2) b entry of general characteristics (ratings, integration period, …) b entry of protection settings b changing of program logic assignments (outputs and LEDs configuration) b editing alarm LED labels (2) b enabling/disabling of functions b saving of files (2). Saving b protection and parameter setting data may be saved (2) b printing of reports is possible as well. (2) This UMI may also be used to recover fault recording files (2) and provide graphic display using the SFT2826 software tool.

Example of a protection setting screen.

Operating assistance Access from all the screens to a help section which contains all the technical data required for Sepam installation and use.

(1) Modes accessed via 2 levels of s (protection setting level, parameter setting level). (2) These features are beyond the scope of the advanced UMI.

64

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

SFT2841 General screen organization

MT11192

A B C

D

E Example of Sepam configuration screen.

MT11193

A Sepam document is displayed on the screen via a graphic interface that has the conventional Windows features. All the SFT2841 software screens are set up in the same way, i.e.: b A : title bar, with: v name of the application (SFT2841) v identification of the Sepam document displayed v window manipulation handles b B : menu bar, to access all the SFT2841 software functions (unavailable functions are dimmed) b C : toolbar, a group of contextual icons for quick access to the main functions (also accessed via the menu bar) b D : work zone available to the , presented in the form of tab boxes b E : status bar, with the following information relating to the active document: v alarm on v identification of the connection window v SFT2841 operating mode, connected or not connected, v type of Sepam v Sepam editing identification v identification level v Sepam operating mode v PC date and time.

Guided navigation A guided navigation mode is proposed to make it easier to enter all of the Sepam parameter and protection settings. It allows s to go through all the data input screens in the natural order. The sequencing of the screens in guided mode is controlled by clicking on 2 icons in the toolbar C : b : to go back to the previous screen b : to go to the next screen. The screens are linked up in the following order: 1. Sepam hardware configuration 2. Program logic 3. General characteristics 4. Setting screens for the protection functions available, according to the type of Sepam 5. Various tabs of the control matrix Example of general characteristics screen.

On-line help The operator may look up on-line help at any time via the "?" command in the menu bar. To use the on-line help, a browser such as Netscape Navigator or Internet Explorer MS is required.

© 2003 Schneider Electric All Rights Reserved

65

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

SFT2841 Use of the software “Not connected to Sepam” mode Sepam parameter and protection setting The parameter and protection setting of a Sepam using SFT2841 consists of preparing the Sepam file containing all the characteristics that are specific to the application, a file that is then ed into Sepam at the time of commissioning. Operating mode: b create a Sepam file for the type of Sepam to be set up. (The newly created file contains the Sepam factoryset parameter and protection settings) b modify the Sepam general settings and protection function settings: v all the data relating to the same function are grouped together in the same screen v it is advisable to enter all the parameters and protection settings in the natural order of the screens proposed by the guided navigation mode. See preceding page. Entry of parameter and protection settings: b the parameter and protection setting input fields are suited to the type of value: v choice buttons (for example, 50 Hz/60 Hz [See page 65.]) v numerical value input fields v dialogue box (Combo box) b the must "Apply" or "Cancel" the new values entered before going on to the following screen b the consistency of the new values applied is checked: v an explicit message identifies inconsistent values and specifies the authorized values v values that have become inconsistent following a parameter modification are replaced by “****” and must be corrected.

CAUTION HAZARD OF UNINTENDED OPERATION A new setting is not applied to the Sepam 1000+ configuration until you press the enter button to store the new setting. If the “CHECK SETTINGS” message appears when you press enter, the new setting conflicts with other settings. Failure to do so could result in unintended operation of the trip output s.

“Connected to Sepam” mode Precaution When using a laptop, discharge to a grounded metal frame before physically connecting the CCA783 cable (supplied with the SFT2841 kit).

CCA783 Cable pinouts 6-Pin DIN (Male)

DB-9 (Female)

1 (Rx)

3 (Tx)

2 (Tx)

2 (Rx)

3 (Gnd)

5 (Gnd)

Plugging into Sepam b plugging of the 9-pin connector (SUB-D type) into one of the PC communication ports. Configuration of the PC communication port via the “Communication port” function in the “Options” menu b plugging of the 6-pin connector into the connector (round minidin type) situated behind the blanking plate on the front of Sepam or the DSM303 module. Connection to Sepam 2 possibilities for setting up the connection between SFT2841 and Sepam: b “Connection” function in the “File” menu b choice of “connect to the Sepam” at the start-up of SFT2841. Once the connection with Sepam has been established, “Connected” appears in the status bar, and the Sepam connection window may be accessed in the work zone. identification The window intended for the entry of the 4-digit is activated: b via the “s” tab b via the “Identification” function in the “Sepam” menu b via the “Identification” icon . The "Return to Operating mode" function in the “s” tab removes access rights to parameter and protection setting mode. ing of parameters and protection settings Parameter and protection setting files may only be ed in the connected Sepam in Parameter setting mode. Once the connection has been established, the procedure for ing a parameter and protection setting file is as follows: b activate the “ Sepam” function in the “Sepam” menu b select the file(*.rpg) which contains the data to be ed. Return to factory settings This operation is only possible in Parameter setting mode, via the “Sepam” menu. All of the Sepam general characteristics, protection settings and the control matrix go back to the default values. ing of parameter and protection settings The connected Sepam parameter and protection setting file may only be ed in Operating mode. Once the connection has been established, the procedure for ing a parameter and protection setting file is as follows: b activate the “ Sepam” function in the “Sepam” menu b select the *.rpg file that is to contain the ed data b acknowledge the end of operation report. Local operation of Sepam Connected to Sepam, SFT2841 offers all the local operating functions available in the advanced UMI screen, plus the following functions: b setting of Sepam internal clock, via the “general characteristics” tab b implementation of the disturbance recording function, via the “Fault recording” menu “OPG”: validation/inhibition of the function, recovery of Sepam files, start-up of SFT2826 b consultation of the history of the last 64 Sepam alarms, with time-tagging b access to Sepam diagnostic data, in the “Sepam” tab box, included in “Sepam diagnosis” b in Parameter setting mode, the switchgear diagnostic values may be modified: operation counter, cumulative breaking current to reset the values after a change of breaking device.

66

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

This UMI includes: b 2 signal lamps indicating Sepam operating status: v green "on" indicator: device on v red "wrench" indicator: device unavailable (initialization phase or equipment malfunction) b 9 parameterizable yellow signal lamps, fitted with a standard label (with SFT2841, a customized label can be printed on a laser printer) b "reset" button for clearing and resetting alarms and trips b 1 connection port for the RS 232 link with the PC (CCA783 cable), the connector is protected by a sliding cover (blanking cover). 10

MT10276

BASIC UMI ON RELAY

on

I>51

I>>51

Io>51N Io>>51N

ext

0 off

I on

Trip

reset

In addition to the basic UMI functions, this version provides: b a "graphic" LCD display for the display of measurements, parameter/protection settings and alarm and operating messages. The number of lines, size of characters and symbols are in accordance with the screens and language versions. The LCD display is back-lit when the presses a key. b a 9-key keypad with 2 operating modes:

MT10277

Advanced UMI on Relay or Remote on

I>51

I>>51 Io>51N Io>>51N

I on

Trip

1

I1 = 162A I2 = 161A I3 = 163A

White keys for current operation: 1 display of measurements, 2 display of switchgear and network diagnosis data, 3 display of alarm messages, 4 resetting, 5 acknowledgment and clearing of alarms. Blue keys activated in parameter and protection setting mode: 7 access to protection settings, 8 access to Sepam parameter setting, 9 used to enter the 2 s required to change protection and parameter settings. The "↵ , r , " ( 4 , 5 , 6 ) keys are used to browse through the menus and to scroll and accept the values displayed. 6 "lamp test" key: switching on sequence of all the signal lamps.

0 off

ext

2 3

10 9

8

7

6

clear

reset

5

4

r

© 2003 Schneider Electric All Rights Reserved

67

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

ADVANCED UMI

There are 3 levels of use: b operator level: used to access all the screens in read mode and does not require any s b relay technician level: requires the entry of the first ( key), allows protection setting ( key) b relay engineer level: requires the entry of the second ( key), allows modification of the general settings as well ( key). Only relay engineer level may modify the s. The s have 4 digits.

MT10808

Access Levels of Use on

I>51

I>>51 Io>51N Io>>51N ext

0 off

s

apply

cancel

clear

Access to measured and calculated data (operator level)

v key: protection settings v when the presses a key, the system moves on to the next screen in the loop. When a screen includes more than 4 lines, the moves about in the screen via the cursor keys ( , ).

reset

Example: measurement loop MT10885

The measurements and parameters may be accessed using the metering, diagnosis, status and protection keys. They are arranged in a series of screens as shown in the diagram opposite. b the data are split up by category in 4 menus, associated with the following 4 keys: v key: measurements v key: switchgear diagnosis and additional measurements v key: general settings

I on Trip

Measurements numerical values I rms

Measurements bar graphs

clear

Average I

clear

Overcurrent

Io bar graph

Temperatures 1 to 4 temperature sensors

Temperatures 5 to 8 temperature sensors

68

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

White keys for current operation

The "metering" key is used to display the variables measured by Sepam.

MT10283

key on

I>51

I>>51 Io>51N Io>>51N

0 off

ext

I on

Trip

I1 = 162A I2 = 161A I3 = 163A

clear

reset

The “diagnosis” key provides access to diagnostic data on the circuit breaker or or and additional measurements, to facilitate fault analysis.

MT11117

key on

I>51

I>>51 Io>51N Io>>51N

0 off

ext

I on Trip

Trip circuit: OK Op. Nb.

: 123

Op. time

57 ms

Ch arg time

8S

clear

© 2003 Schneider Electric All Rights Reserved

reset

69

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

The “alarms” key is used to consult the 16 most recent alarms that have not yet been cleared.

MT10287

key

on

I>51

I>>51 Io>51N Io>>51N

0 off

ext

I on Trip

0 Io FAULT -1 -2 -3 clear

key

The “reset” key resets Sepam (extinction of signal lamps and resetting of protection units after the disappearance of faults). The alarm messages are not erased. Sepam resetting must be confirmed.

MT10301

reset

reset

on

I>51

I>>51 Io>51N Io>>51N

2001 / 10 / 06

0 off

ext

I on Trip

12:40:50

PHASE FAULT

1A

Phase 1

clear

70

reset

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

key

When an alarm is present on the Sepam display, the "clear" key is used to return to the screen that was present prior to the appearance of the alarm or to a less recent unacknowledged alarm. Sepam is not reset. In the metering or diagnosis or alarm menus, the "clear" key may be used to reset the average currents, peak demand currents, running hours counter and alarm stack when they are shown on the display.

MT10284

clear

Sepam Series 20 Digital Relay

on

I>51

I>>51 Io>51N Io>>51N

0 off

ext

I on Trip

I1max = 180A I2max = 181A I2max = 180A

clear

reset

Press the "lamp test" key for 5 seconds to start up a LED and display test sequence. When an alarm is present, the "lamp test" key is disabled.

MT10283

key on

I>51

I>>51 Io>51N Io>>51N

0 off

ext

I on

Trip

I1 = 162A I2 = 161A I3 = 163A

clear

© 2003 Schneider Electric All Rights Reserved

reset

71

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Blue keys for parameter and protection setting

The “status” key is used to display and enter the Sepam general settings. They define the protected equipment characteristics and the different optional modules.

MT10810

key on

I>51

I>>51 Io>51N Io>>51N

0 off

ext

I on Trip

General settings language frequency English 50 Hz French 60 Hz A/B choice (A actif) =A

clear

reset

The “protection” key is used to display, set and enable or disable the protection units.

MT10811

key on

I>51

I>>51 Io>51N Io>>51N

50/51 1 A

0 off

ext

I on Trip

Off On

Trip = inverse Curve Threshold = 110 A Delay = 100 ms

clear

72

reset

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

The access key is used to enter the s for access to the different modes: b protection setting b parameter setting. and return to "operating" mode (with no s).

MT10808

key on

I>51

I>>51 Io>51N Io>>51N ext

0 off

I on Trip

s

apply

cancel

clear

reset

Note: for parameter setting of alarm LEDs and output relays, it is necessary to use the SFT2841 software, "program logic" menu.

key

The key is used to confirm the protection settings, parameter settings and s.

MT10812

reset

on

I>51

I>>51 Io>51N Io>>51N

50/51 1 A

0 off

ext

I on Trip

Off On

Trip = SIT Curve Threshold = 550 A Delay = 600 ms

clear

© 2003 Schneider Electric All Rights Reserved

reset

73

Sepam Series 20 Digital Relay

key

When there are no alarms on the Sepam display and the is in the status, protection or alarm menu, the key is used to move the cursor upward.

MT10813

clear

63230-216-208B1 7/2003

on

I>51

I>>51 Io>51N Io>>51N

0 off

ext

I on Trip

Off On

50/51 1 A

Trip = SIT Curve Threshold = 550 A Delay = 600 ms

clear

reset

When there are no alarms on the Sepam display and the is in the status, protection or alarm menu, the key is used to move the cursor downward.

MT10814

key on

I>51

I>>51 Io>51N Io>>51N

Delay

0 off

ext

I on Trip

= 600 ms

Timer hold Curve = Definite Delay = 0.00 ms apply

cancel

clear

74

reset

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

DATA ENTRY s Sepam has two 4-digit s: b the first , symbolized by a key, is used to modify the protection settings b the second , symbolized by two keys, is used to modify the protection settings and all the general settings. The 2 factory-set s are: 0000 Entry of s Press the key to display the following screen: MT10816

s

Modification of s Only the parameter setting qualification level (2 keys) or the SFT2841 allow modification of the s. s are modified in the general settings screen, key. Loss of s If the factory-set s have been modified and the latest s entered have been irretrievably lost by the , please your local after-sales service representative.

General or Protection Settings Entry Procedure for all Sepam screens (example of phase overcurrent protection) b enter the b access the corresponding screen by successively pressing the key b move the cursor by pressing the key for access to the desired field (e.g. curve) b press the key to confirm the choice, then select the type of curve by pressing the or key and confirm by pressing the key b press the key to reach the following fields, up to the apply box. Press the key to confirm the setting. reset

reset

apply

cancel

reset

Press the key to position the cursor on the first digit. 0 XXX Scroll the digits using the cursor keys ( , ), then confirm to go on to the next digit by pressing the key. Do not use characters other than numbers 0 to 9 for each of the 4 digits. When the for your qualification level is entered, press the key to position the cursor on the box. Press the key again to confirm. apply When Sepam is in protection setting mode, a key appears at the top of the display. When Sepam is in parameter setting mode, two keys appear at the top of the display. reset

reset

reset

Entry of numerical values (e.g. current threshold value). b position the cursor on the required field using the keys and confirm the choice by pressing the key b select the first digit to be entered and set the value by pressing the keys (choice of . 0……9) b press the key to confirm the choice and go on to the following digit. The values are entered with 3 significant digits and a period. The unit (e.g. A or kA) is chosen using the last digit. b press the key to confirm the entry, then press the key for access to the following field b all of the values entered are only effective after the confirms by selecting the box at the bottom of the screen and presses the key. apply reset

reset

reset

reset

MT10817

Off On Trip curve

= definite thershold = 120 A delay

= 100 ms

response time = definite curve delay apply

= 0 ms cancel

Access to the protection setting or parameter setting modes is disabled: b by pressing the key b automatically if no keys are activated for more than 5 minutes.

© 2003 Schneider Electric All Rights Reserved

75

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

DEFAULT PARAMETERS, ALL APPLICATIONS The Sepam units are delivered with default parameter setting and protection setting according to the type of application. These "factory" settings are also used with the SFT2841 software: b for the creation of new files in not connected mode b for a return to the "factory" settings in connected mode.

S20, T20 and M20 applications Hardware configuration b identification: Sepam xxxx b model: UX b MES module: absent b MET module: absent b MSA module: absent b DSM module: present b ACE module: absent. Output parameter setting b outputs used: O1 to O4 b shunt trip units: O1, O3 b undervoltage trip units: O2, O4 b impulse mode: no (latched). Program logic b circuit breaker control: no b logic discrimination: no b logic input assignment: not used. General characteristics b network frequency: 50 Hz b group of settings: A b enable remote setting: no b working language: English b CT rating: 5 A b number of CTs: 3 (l1, l2, l3) b rated current In: 630 A b basic current Ib: 630 A b integration period: 5 mn b residual current: 3I sum b pre-trig for disturbance recording: 36 periods. Protection functions b all the protections are "off" b the settings comprise values and choices that are informative and consistent with the general characteristics by default (in particular rated current In) b tripping behavior: v latching: yes v activation of output O1: yes b disturbance recording triggering: with. Control matrix Each Sepam 1000+ has program logic by default according to the type (S20, T20,…) as well as messages for the different signal lamps. The functions are assigned according to the most frequent use of the unit. This parameter setting may be customized if required using the SFT2841 software package. b S20 application: v activation of output O2 upon protection tripping v activation of indicators according to front markings v watchdog on output O4 v disturbance recording triggering upon signal pick-up. b complements for T20 application: v activation of O1 without latching upon tripping of temperature monitoring 1 to 7 v activation of O1 and indicator L9 without latching upon thermal overload tripping. b complements for M20 application: v activation of outputs O1 and O2 and indicator L9 upon tripping of functions 37 phase undercurrent) and 51 LR (locked rotor) v activation of output O2 upon tripping of function 66 (starts per hour) b latching for function 51 LR.

76

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

B21(1) and B22 applications Hardware configuration b identification: Sepam xxxx b model: UX b MES module: absent b MET module: absent b MSA module: absent b DMS module: present b ACE module: absent. Output parameter setting b outputs used: O1 to O4 b shunt coils: O1 to O3 b undervoltage coils: O4 b impulse mode: no (latched). Program logic b circuit breaker control: no b assignment of logic inputs: not used. General characteristics b network frequency: 50 Hz b enable remote setting: no b working language: English b primary rated voltage (Unp): 20 kV b secondary rated voltage (Uns): 100 V b voltages measured by VTs: V1, V2, V3 b residual voltage: sum of 3Vs b pre-trig for disturbance recording: 36 periods.

Sepam Series 20 Digital Relay

Protection functions b all the protection functions are “off” b the settings comprise values and choices that are informative and consistent with the general characteristics by default b latching: no b disturbance recording triggering: with. Control matrix b assignment of output relays and indicators according to chart: Functions

Outputs

B21

O1

B22

O2

Indicators O3

O4

L1

b

L2

L3

L4

L5

L6

L7

L8

L9

b

27D-1

27D-1

27D-2

27D-2

27R

27R

27-1

27-1

27-2

27-2

b

b

b

27S-1

27S-1

b

b

b

27S-2

27S-2

b

b

b

27S-3

27S-3

b

b

59-1

59-1

b b

b b

59-2

59-2

59N-1

59N-1

59N-2

59N-2

b

81H

81H

b

81L-1

81L-1

81L-2

b b

b b

b

b b b

b

b b b

b b

b

b b

81L-2

b

b

b

81R

b

b

b

b disturbance recording triggering upon signal pick-up b watchdog on output O4. Indicator marking L1 : U < 27 L2 : U < 27D L3 : U < 27R L4 : U > 59 L5 : U > 59N L6 : F > 81H L7 : F < 81L L8 : F << 81L L9 : Trip

(1) Type B21 performs the same functions as cancelled type B20.

© 2003 Schneider Electric All Rights Reserved

77

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

COMMISSIONING Principles and Methods

Protection relay testing

Sepam commissioning tests

Protection relays are tested prior to commissioning, with the dual aim of maximizing availability and minimizing the risk of malfunctioning of the assembly being commissioned. The problem consists of defining the consistency of the appropriate tests, keeping in mind that the relay is always involved as the main link in the protection chain. Therefore, protection relays based on electromechanical and static technologies, must be systematically submitted to detailed testing, not only to qualify relay commissioning, but also to check that they actually are in good operating order and maintain the required level of performance.

The preliminary Sepam commissining tests may be limited to a commissioning check, i.e.: b checking of compliance with BOMs and hardware installation diagrams and rules during a preliminary general check b checking of the compliance of the general settings and protection settings entered with the setting sheets b checking of current or voltage input connection by secondary injection tests b checking of logic input and output connection by simulation of input data and forcing of output status b validation of the complete protection chain (possible customized logical functions included) b checking of the connection of the optional MET148-2 and MSA141 modules. The various checks are described further on.

The Sepam concept makes it possible to do away with such testing, since: b the use of digital technology guarantees the reproducibility of the performances announced b each of the Sepam functions has undergone full factory-qualification b an internal self-testing system provides continuous information on the state of the electronic components and the integrity of the functions (e.g. automatic tests diagnose the level of component polarization voltages, the continuity of the analog value acquisition chain, non-alteration of RAM memory, absence of settings outside the tolerance range) and thereby guarantees a high level of availability Sepam is therefore ready to operate without requiring any additional qualification testing that concerns it directly.

General principles b all the tests should be carried out with the MV cubicle completely isolated and the MV circuit breaker racked out (disconnected and open) b all the tests are to be performed in the operating situation: no wiring or setting changes, even temporary changes to facilitate testing, are allowed. b the SFT2841 parameter setting and operating software is the basic tool for all Sepam s. It is especially useful during Sepam commissioning tests. The tests described in this document are systematically based on the use of that tool. The commissioning tests may be performed without the SFT2841 software for Sepam units with advanced UMIs.

Method For each Sepam: b only carry out the checks suited to the hardware configuration and the functions activated (A comprehensive description of all the tests is given further on) b use the test sheet provided to record the results of the commissioning tests. Checking of current or voltage input connections The secondary injection tests to be carried out to check the connection of the current and voltage inputs are described according to: b the type of current or voltage sensors connected to Sepam, in particular for residual current or voltage measurement b the type of injection generator used for the tests: single-phase generator. The different possible tests are described further on by: b a detailed test procedure b the connection diagram of the associated test generator. The table below specifies the tests to be carried out according to the type of measurement sensors and type of generator used, and indicates the page on which each test is described. Current sensors 3 CTs Voltage sensors Single-phase See page 82. generator

78

1 core balance CT See page 83.

3 VTs See page 84.

1 residual VT See page 85.

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Testing and metering equipment required

DANGER HAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION • This equipment must be installed and serviced only by qualified personnel. • Qualified persons performing diagnostics or troubleshooting that require electrical conductors to be energized must comply with NFPA 70 E - Standard for Electrical Safety Requirements for Employee Workplaces and OSHA Standards - 29 CFR Part 1910 Subpart S - Electrical. • Carefully inspect the work area for tools and objects that may have been left inside the equipment. • Use caution while removing or installing s so that they do not extend into the energized bus; avoid handling the s, which could cause personal injury. Failure to follow these instructions will result in death or serious injury.

Generators b dual sinusoidal AC current and voltage generator: v 50 or 60 Hz frequency (according to the country) v current adjustable 0–50A rms v adjustable voltage 0–150V v single-phase type b DC voltage generator: v adjustable from 48 to 250 V DC, for adaptation to the voltage level of the logic input being tested.

Accessories b plug with cord to match the "current" test terminal box installed b plug with cord to match the "voltage" test terminal box installed b electric cord with clamps, wire grip or touch probes.

Metering devices (built into the generator or separate) b 1 ammeter, 0 to 50 A rms b 1 voltmeter, 0 to 150 V rms

Computer equipment b v v v v v b b

© 2003 Schneider Electric All Rights Reserved

PC with minimal configuration: MicroSoft Windows 95 / 98 / NT 4.0 / XP / 2000 133 MHz Pentium processor, 64 MB of RAM (or 32 MB with Windows 95 / 98 64 MB free on hard disk CD-ROM drive SFT2841 software CCA783 serial connection cord between the PC and Sepam.

79

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Documents b v v v v v v v b b

complete connection diagram of Sepam and additional modules, with: phase current input connection to the corresponding CTs via the test terminal box residual current input connection phase voltage input connection to the corresponding VTs via the test terminal box residual voltage input connection to the corresponding VTs via the test terminal box logic input and output connection temperature sensor connection analog output connection hardware BOMs and installation rules group of Sepam parameter and protection settings, available in paper format.

Pre-test Equipment Check Checking to be done prior to energizing Apart from the mechanical state of the equipment, use the diagrams and BOMs provided by the contractor to check: b identification of Sepam and accessories determined by the contractor b correct grounding of Sepam (via terminal 17 of the 20-pin connector) b correct connection of auxiliary voltage (terminal 1: AC or positive polarity; terminal 2: AC or negative polarity) b presence of a residual current measurement core balance CT and/or additional modules connected to Sepam, when applicable b presence of test terminal boxes upstream from the current inputs and voltage inputs b conformity of connections between Sepam terminals and the test terminal boxes.

Connections Check that the connections are tightened (with equipment non-energized). The Sepam connectors must be correctly plugged in and locked.

Energizing Switch on the auxiliary power supply. Check that Sepam performs the following initialization sequence, which lasts approximately 6 seconds : b green ON and red indicators on b red indicator off b pick-up of "watchdog" . The first screen displayed is the phase current measurement screen.

Implementation of the SFT2841 software for PC b start up the PC b connect the PC RS232 serial port to the communication port on the front of Sepam using the CCA783 cable b start up the SFT2841 software, by clicking on the related icon b choose to connect to the Sepam to be checked.

Identification of Sepam b note the Sepam serial number given on the label stuck to the right side plate of the base unit b note the Sepam type and software version using the SFT2841 software, "Sepam Diagnosis" screen b enter them in the test sheet. See page 88.

80

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Pre-test Settings Check

Determination of parameter and protection settings All of the Sepam parameter and protection settings are determined ahead of time by the design department in charge of the application, and should be approved by the customer. It is presumed that the study has been carried out with all the attention necessary, or even consolidated by a network coordination study. All of the Sepam parameter and protection settings should be available at the time of commissioning: b in paper file format (with the SFT2841 software, the parameter and protection setting file for a Sepam may be printed directly or exported in a text file for editing) b and, when applicable, in the format of a file to be ed into Sepam using the SFT2841 software.

Checking of parameters and protection settings that settings are study values instead of default settings. The aim of this check is not to confirm the relevance of the parameter and protection settings. b go through all the parameter and protection setting screens in the SFT2841 software, in the order proposed in guided mode b for each screen, compare the values entered in the Sepam with the values recorded in the parameter and protection setting file b correct any parameter and protection settings that have not been entered correctly, proceeding as indicated in the "Expert UMI" section of the Use chapter of this manual.

Conclusion Once the checking has been done and proven to be conclusive, as of that phase, the parameter and protection settings should not be changed any further and are considered to be final. In order to be conclusive, the tests which follow must be performed with these parameter and protection settings; no temporary modification of any of the values entered, with the aim of facilitating a test, is permissible.

© 2003 Schneider Electric All Rights Reserved

81

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Checking of phase current input connection Description: Check to be carried out for Sepam 1000+ S20, T20 or M20.

Procedure:

MT10887

b to inject a current into the phase 1 input, connect the single-phase generator to the test terminal box using the plug provided, in accordance with the diagram below:

L1 L2 L3

Sepam 1000+ S20/T20/M20

test terminal box 4 1

B

5 2 6 3 A

18 19

eg.: I1 I N

A

A single-phase current injection box

b turn on the generator b inject the CT rated secondary current, i.e. 1 A or 5 A b use the SFT2841 software to check that the phase 1 current value is approximately equal to the CT rated primary current b if the residual current is calculated by taking the sum of the 3 phase currents, use the SFT2841 software to check that the residual current value is approximately equal to the CT rated primary current b if the residual current is measured via 3 phase CTs connected to a CSH30 interposing ring CT, use the SFT2841 software to check that the residual current value is approximately equal to the CT rated primary current b turn off the generator b proceed in the same way for the other 2 phase current inputs b at the end of the test, put the cover back on the test terminal box.

82

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Checking of residual current input connection Description: Check to be carried out for Sepam 1000+ S20, T20 or M20, when the residual current is measured by a specific sensor: b CSH120 or CSH200 core balance CT b another core balance CT connected to an ACE990 interface b a single 1 A or 5 A CT encoming the 3 phases, connected to a CSH30 interposing ring CT.

Procedure: b connect the single-phase current generator to inject current into the primary circuit of the core balance CT or the CT, in accordance with the diagram below:

MT10888

L1 L2 L3

Sepam 1000+ S20/T20/M20

test terminal box 4 1

B

5 2 6 3 A

18 19

I N

A

A

single-phase current injection box

b turn on the generator b inject a 5 A primary residual current b use the SFT2841 software to check that the residual current value is approximately equal to 5 A b turn the generator off.

© 2003 Schneider Electric All Rights Reserved

83

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Checking phase voltage input connection Description: Check to be carried out for Sepam 1000+ B21 or B22.

Procedure: b to apply a phase-to-neutral voltage to the phase 1 voltage input, connect the single-phase voltage generator to the test terminal box using the plug provided, in ccordance with the diagram below:

MT10889

L1 L2 L3

Sepam 1000+ B21/B22 test terminal box

B

1 2 3 4 5 6 7 8

eg.: V1 V

V N V single-phase current injection box

b turn the generator on b apply the VT rated secondary phase-to-neutral voltage (Uns/3) b use the SFT2841 software to check that the phase-to-neutral voltage V1 value is equal to the VT rated primary phase-to-neutral voltage (Unp/3) b if the residual voltage is calculated by the sum of the 3 voltages, use the SFT2841 software to check that the residual voltage is approximately equal to the VT rated primary phase-to-neutral voltage (Unp/√3) b turn the generator off b proceed in the same way for the other 2 phase voltage inputs b at the end of the test, put the cover back on the test terminal box.

84

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Checking of residual voltage input connection Description: Check to be carried out for Sepam 1000+ B21 or B22, when the residual voltage is measured by 3 VTs on the secondary circuits connected in an open delta arrangement.

Procedure: b connect the single-phase voltage generator to the terminal test box using the plug provided, in accordance with the diagram below:

MT10890

L1 L2 L3

Sepam 1000+ B21/B22 B

1 2 3 4 test terminal box

5 6 7 8

eg.: V1 V

V N V single-phase current injection box

b turn on the generator b apply the VT rated secondary phase-to-neutral voltage (Uns/3) b use the SFT2841 software to check the residual voltag value Vo b Vo should be equal to the VT rated primary phase-to-neutral voltage (Unp/3 or Vnp) if the VTs deliver Uns/3 to the secondary circuit b Vo should be equal to the VT rated primary phase-to-phase voltage (Unp or 3Vnp) if the VTs deliver Uns/3 to the secondary circuit b turn the generator off b put the cover back on the terminal test box.

© 2003 Schneider Electric All Rights Reserved

85

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Logic Input and Output

MT11194

Checking of logic input connection Proceed as follows for each input: b if the input supply voltage is present, use an electric cable to short-circuit the that delivers logic data to the input at 19.2–275 V dc b if the input supply voltage is not present, apply a voltage supplied by the DC voltage generator to the terminal of the linked to the chosen input, being sure to comply with the suitable polarity and level b observe the change of status of the input using the SFT2841 software, in the "Input, output, indicator status" screen b at the end of the test, if necessary, press the SFT2841 Reset key to clear all messages and deactivate all outputs.

"Input, output, indicator status’’ screen.

MT11195

Checking of logic output connection Check carried out using the "Output relay test" function, activated via the SFT2841 software, in the "Sepam Diagnosis" screen. Only output O4, when used for the watchdog, can be tested. This function requires prior entry of the "Parameter setting" . b activate each output relay using the buttons in the SFT2841 software b the activated output relay changes status over a period of 5 seconds b observe the change of status of the output relay through the operation of the related switchgear (if it is ready to operate and is powered), or connect a voltmeter to the terminals of the output (the voltage cancels itself out when the closes) b at the end of the test, press the SFT2841 Reset key to clear all messages and deactivate all outputs.

‘’Sepam diagnosis and output relay test’’ screen.

86

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Validation of Protection Output and Custom Logic Functions Principle The complete protection chain is validated during the simulation of a fault that causes tripping of the breaking device by Sepam.

Procedure b select one of the protection functions that triggers tripping of the breaking device b according to the selected function or functions, inject a current and/or apply a voltage that corresponds to a fault b observe the tripping of the breaking device At the end of all the voltage or current application type checks, put the covers back on the test terminal boxes.

Optional Module Connection Checking of RTD inputs to the MET148-2 module The temperature monitoring function provided by Sepam T40, T42, M41 and G40 units checks the connection of each RTD that is configured. An "RTD FAULT" alarm is generated whenever one of the RTDs is detected as being short-circuted or disconnected (absent). To identify the faulty RTD or RTDs: b display the temperature values measured by Sepam using the SFT2841 software b check the consistency of the temperatures measured: v the temperature displayed is "****" if the RTD is short-circuited (T < -35°C) v the temperature displayed is "-****" if the RTD is disconnected (T > 205°C).

Checking of analog output connection to the MSA141 module b identify the measurement associated by parameter setting to the analog output using the SFT2841 software b simulate, if necessary, the measurement linked to the analog output by injection b check the consistency between the value measured by Sepam and the indication given by the device connected to the analog output.

© 2003 Schneider Electric All Rights Reserved

87

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Test sheet Sepam series 40 Project:

Type of Sepam 1000+

Switchboard:

Serial number

Cubicle:

Software version

V

Overall checks Check of the box v when the check has been made and been conclusive Type of check Preliminary general examination, prior to energizing

v v v v v v v v

Energizing Parameter and protection settings Logic input connection Logic output connection Validation of the complete protection chain Analog output connection to the MSA141 module Temperature sensor input connection to the MET148 module (for type T20 or M20)

Checking of Sepam 1000+ S20, T20 or M20 current inputs Type of check Phase current input connection

Test performed Secondary injection of CT rated current, i.e. 1 A or 5 A

Result CT rated primary current

Display I1 =

v

I2 = I3 = Residual current value obtained by 3 phase CTs

Secondary injection of CT rated current, i.e. 1 A or 5 A

CT rated primary current

Residual current input Injection of 5 A into primary Injected current value connection to a specific circuit of core balance CT or sensor: CT b CSH120 or CSH200 b other core balance CT + ACE990 b 1 x 1 A or 5 A CT + CSH30

Io =

v

Io =

v

Checking of Sepam 1000+ B21 or B22 voltage inputs Type of check Phase voltage input connection

Test performed Secondary injection of VT rated phase-to-neutral voltage Uns/3

Result Display VT rated primary phase-to-neutral voltage Unp/3 V1 =

v

V2 =

Residual voltage value obtained by 3 phase VTs Connection of residual voltage input Tests performed on:

Secondary injection of VT rated phase-to-neutral voltage Uns/3 Secondary injection of voltage Uns/3

V3 = VT rated primary phase-to-neutral voltage Unp/3 Vo = Residual voltage = Unp/3 (if Uns/3 VT) = Unp (if Uns/3 VT)

Vo =

v v

Signatures

By:

88

© 2003 Schneider Electric All Rights Reserved

63230-216-208B1 7/2003

Sepam Series 20 Digital Relay

Comments:

MAINTENANCE

MT11196

Sepam has a large number of self-tests that are carried out in the base unit and additional modules. The purpose of the self-tests is: b to that the system is functioning properly b to put Sepam in an inhibit position if the relay could potentially malfunction b to notify the operator that a maintenance operation is required. The "Sepam diagnosis" screen of the SFT2841 software provides access to data on the status of the base unit and optional modules.

Shutdown of the base unit if problems are identified The base unit goes into the fail-safe position in the following conditions: b the Sepam unit is at risk of malfunctioning b sensor interface connector missing (CCA630 or CCA670) b no connection of one of the 3 LPCT sensors to the CCA670 (connectors L1, L2 and L3) b MES module configured but missing. The Sepam unit will indicate shutdown by the following: b ON indicator on b indicator on the base unit steadily on b relay O4 "watchdog" in fault position b output relays dropped out b all protection units inhibited b display showing fault message 01

b

indicator on DSM303 module (remote advanced UMI option) flashing.

Downgraded operation

Sepam Diagnosis" screen.

CAUTION HAZARD OF EQUIPMENT DAMAGE Never open the Sepam 1000+. Opening the Sepam voids the warranty. Failure to follow this instruction can result in equipment damage.

The main unit is in working order (all the protection functions activated are operational) and indicates that one of the optional modules such as DSM303, MET148-2 or MSA141 is malfunctioning or else that a module is configured but not connected. According to the model, this operating mode is conveyed by: b Sepam with integrated advanced UMI (MD base): v ON indicator on v indicator on the base unit flashing, including when the display is out of order (off) v indicator on the MET or MSA module, steadily on. The display shows a partial fault message and indicates the type of fault by a code: v code 1: inter-module link fault v code 3: MET module unavailable v code 4: MSA module unavailable. b Sepam with remote advanced UMI, MX base + DSM303: v ON indicator on v indicator on the base unit flashing v indicator on the MET or MSA module, steadily on v the display indicates the type of fault by a code (same as above). Special case of faulty DSM303: v ON indicator on v indicator on base unit flashing v indicator on DSM steadily on v display off. This Sepam operating mode is also transmitted via the communication link.

RTD fault

© 2003 Schneider Electric All Rights Reserved

89

Sepam Series 20 Digital Relay

63230-216-208B1 7/2003

Each temperature monitoring function, when activated, detects whether the RTD associated with the MET148-2 module is short-circuited or disconnected. When this is the case, the alarm message "RTD FAULT" is generated. Since this alarm is common to the 8 functions, the identification of the malfunctioning RTD or RTDs is obtained by looking up the measured values: b measurement displayed "****" if the sensor is short-circuited (T < -35°C) b measurement displayed "-****" if the sensor is disconnected (or T > +205°C)

Other faults Specific faults indicated by a screen: b DSM303 version incompatible (if version < V0146).

Maintenance The Sepam 1000+ does not require regular maintenance or calibration, nor does it contain any -serviceable parts. If the Sepam 1000+ requires service, your local sales representative, or call the POWERLOGIC Technical Center for assistance.

Getting Technical If you have questions about the Sepam 1000+ or other POWERLOGIC and POWERLINK products, the Power Management Operation Technical Center. The hours are Monday–Friday, 7:30 am–4:30 pm (Central time). Although the fax is available seven days a week, 24 hours a day, if you send your fax outside of these business hours, you will receive your response the next business day. Be sure to include your name and company, address, phone number, types of POWERLOGIC products, and a detailed description of the problem or question. numbers are as follows: Phone: (615) 287-3400 Fax: (615) 287-3404 Email: [email protected] For technical publications, visit www.powerlogic.com.

90

© 2003 Schneider Electric All Rights Reserved

Schneider Electric Power Management Operation TECHNICAL 295 Tech Park Dr, Suite 100 LaVergne, TN USA 37086 Tel. : (615) 287-3400 Fax : (615) 287-3404 e-mail: [email protected] www.powerlogic.com

Bulletin No. 63230-216-208B1 July 2003 © 2003 Schneider Electric All Rights Reserved. Replaces 63230-216-208 dated 6/2001