ABB REQ650 1.3 IEC Quick start guide

Relion® 650 SERIES
Breaker protection REQ650
Version 1.3 IEC
Commissioning manual

Document ID: 1MRK 505 293-UEN
Issued: November 2019
Revision: B
Product version: 1.3
© Copyright 2013 ABB. All rights reserved

Copyright
This document and parts thereof must not be reproduced or copied without written
permission from ABB, and the contents thereof must not be imparted to a third party, nor
used for any unauthorized purpose.
The software and hardware described in this document is furnished under a license and may
be used or disclosed only in accordance with the terms of such license.
This product includes software developed by the OpenSSL Project for use in the OpenSSL
Toolkit. (http://www.openssl.org/)
This product includes cryptographic software written/developed by: Eric Young
([email protected]) and Tim Hudson ([email protected]).
Trademarks
ABB and Relion are registered trademarks of the ABB Group. All other brand or product names
mentioned in this document may be trademarks or registered trademarks of their respective
holders.
Warranty
Please inquire about the terms of warranty from your nearest ABB representative.
ABB AB
Grid Automation Products
SE-721 59 Västerås
Sweden
Telephone: [phone]
Facsimile: [phone]
http://www.abb.com/protection-control

Conformity
This product complies with the directive of the Council of the European Communities on the
approximation of the laws of the Member States relating to electromagnetic compatibility
(EMC Directive 2004/108/EC) and concerning electrical equipment for use within specified
voltage limits (Low-voltage directive 2006/95/EC). This conformity is the result of tests
conducted by ABB in accordance with the product standards EN 50263 and EN 60255-26 for
the EMC directive, and with the product standards EN 60255-1 and EN 60255-27 for the low
voltage directive. The product is designed in accordance with the international standards of
the IEC 60255 series.

Disclaimer
The data, examples and diagrams in this manual are included solely for the concept or product
description and are not to be deemed as a statement of guaranteed properties. All persons
responsible for applying the equipment addressed in this manual must satisfy themselves that
each intended application is suitable and acceptable, including that any applicable safety or
other operational requirements are complied with. In particular, any risks in applications where
a system failure and/or product failure would create a risk for harm to property or persons
(including but not limited to personal injuries or death) shall be the sole responsibility of the
person or entity applying the equipment, and those so responsible are hereby requested to
ensure that all measures are taken to exclude or mitigate such risks.
This document has been carefully checked by ABB but deviations cannot be completely ruled
out. In case any errors are detected, the reader is kindly requested to notify the manufacturer.
Other than under explicit contractual commitments, in no event shall ABB be responsible or
liable for any loss or damage resulting from the use of this manual or the application of the
equipment.

Table of contents
Section 1 Introduction.................................................................................................... 7
1.1 This manual....................................................................................................................................7
1.2 Intended audience........................................................................................................................ 7
1.3 Product documentation..............................................................................................................8
1.3.1 Product documentation set.....................................................................................................8
1.3.2 Document revision history....................................................................................................... 9
1.3.3 Related documents....................................................................................................................9
1.4 Symbols and conventions.........................................................................................................10
1.4.1 Symbols...................................................................................................................................... 10
1.4.2 Document conventions........................................................................................................... 10
Section 2 Safety information....................................................................................... 11
2.1 Symbols on the product.............................................................................................................11
2.2 Warnings....................................................................................................................................... 11
2.3 Caution signs...............................................................................................................................12
2.4 Note signs.................................................................................................................................... 13
Section 3 Available functions.......................................................................................15
3.1 Back-up protection functions.................................................................................................. 15
3.2 Control and monitoring functions.......................................................................................... 16
3.3 Station communication.............................................................................................................19
3.4 Basic IED functions.....................................................................................................................21
Section 4 Starting up.....................................................................................................23
4.1 Factory and site acceptance testing...................................................................................... 23
4.2 Commissioning checklist.......................................................................................................... 23
4.3 Checking the power supply...................................................................................................... 24
4.4 Energizing the IED......................................................................................................................24
4.4.1 Checking the IED operation................................................................................................... 24
4.4.2 IED start-up sequence.............................................................................................................24
4.5 Setting up communication between PCM600 and the IED............................................... 25
4.6 Writing an application configuration to the IED..................................................................30
4.7 Checking CT circuits...................................................................................................................31
4.8 Checking VT circuits................................................................................................................... 31
4.9 Using the RTXP test switch...................................................................................................... 32
4.10 Checking binary input and output circuits............................................................................32
4.10.1 Binary input circuits.................................................................................................................32
4.10.2 Binary output circuits.............................................................................................................. 33
4.11 Checking optical connections..................................................................................................33
Section 5 Establishing connection and verifying the IEC 61850 station
communication............................................................................................. 35
Table of contents
Breaker protection REQ650 1
Commissioning manual
© Copyright 2013 ABB. All rights reserved

5.1 Setting the station communication....................................................................................... 35
5.2 Verifying the station communication.................................................................................... 35
Section 6 Testing IED operation.................................................................................. 37
6.1 Preparing the IED to verify settings........................................................................................37
6.2 Activating the test mode.......................................................................................................... 38
6.3 Preparing the connection to the test equipment................................................................ 39
6.4 Connecting the test equipment to the IED........................................................................... 39
6.5 Releasing the function to be tested.......................................................................................40
6.6 Verifying analog primary and secondary measurement.....................................................41
6.7 Testing the protection functionality...................................................................................... 42
Section 7 Testing functionality................................................................................... 43
7.1 Testing disturbance report...................................................................................................... 43
7.1.1 Introduction.............................................................................................................................. 43
7.1.2 Disturbance report settings.................................................................................................. 43
7.2 Identifying the function to test in the technical reference manual ................................ 43
7.3 Testing current protection functions.................................................................................... 43
7.3.1 Instantaneous phase overcurrent protection 3-phase output PHPIOC .......................43
7.3.1.1 Measuring the operate limit of set values.....................................................................44
7.3.1.2 Completing the test...........................................................................................................44
7.3.2 Instantaneous phase overcurrent protection phase segregated output SPTPIOC .. 44
7.3.2.1 Completing the test...........................................................................................................44
7.3.3 Four step phase overcurrent protection 3-phase output OC4PTOC............................ 45
7.3.3.1 Verifying the settings........................................................................................................ 45
7.3.3.2 Completing the test...........................................................................................................46
7.3.4 Four step phase overcurrent protection phase segregated output OC4SPTOC .......46
7.3.4.1 Verifying the settings........................................................................................................ 46
7.3.4.2 Completing the test........................................................................................................... 47
7.3.5 Instantaneous residual overcurrent protection EFPIOC ................................................. 47
7.3.5.1 Measuring the operate limit of set values..................................................................... 47
7.3.5.2 Completing the test........................................................................................................... 47
7.3.6 Four step residual overcurrent protection, zero or negative sequence
direction EF4PTOC ..................................................................................................................47
7.3.6.1 Four step directional residual overcurrent protection .............................................. 48
7.3.6.2 Four step non-directional residual overcurrent protection.......................................48
7.3.6.3 Completing the test...........................................................................................................48
7.3.7 Sensitive directional residual overcurrent and power protection SDEPSDE .............. 49
7.3.7.1 Measuring the operate and time limit for set values.................................................. 49
7.3.7.2 Completing the test........................................................................................................... 53
7.3.8 Thermal overload protection, one time constant, Celsius/Fahrenheit LCPTTR/
LFPTTR........................................................................................................................................53
7.3.8.1 Testing the protection without external temperature compensation
(NonComp)...........................................................................................................................53
7.3.8.2 Completing the test...........................................................................................................54
7.3.9 Breaker failure protection, phase segregated activation and output CCRBRF.......... 54
7.3.9.1 Checking the phase current operate value, IP> ............................................................54
Table of contents
2Breaker protection REQ650
Commissioning manual
© Copyright 2013 ABB. All rights reserved

7.3.9.2 Checking the residual (earth fault) current operate value IN> set below IP> ........ 55
7.3.9.3 Checking the re-trip and back-up times........................................................................ 55
7.3.9.4 Verifying the re-trip mode................................................................................................ 55
7.3.9.5 Verifying the back-up trip mode......................................................................................56
7.3.9.6 Verifying the case RetripMode = Contact ......................................................................56
7.3.9.7 Verifying the function mode Current&Contact .............................................................57
7.3.9.8 Completing the test........................................................................................................... 57
7.3.10 Breaker failure protection, phase segregated activation and output CSPRBRF.........57
7.3.10.1 Checking the phase current operate value, IP>............................................................58
7.3.10.2 Checking the residual (EF) current operate value IN> set below IP>....................... 58
7.3.10.3 Checking the re-trip and back-up times........................................................................ 58
7.3.10.4 Verifying the RetripMode ..................................................................................................59
7.3.10.5 Verifying the case RetripMode = No CB Pos Check ..................................................... 59
7.3.10.6 Verifying the function mode Current&Contact ............................................................ 59
7.3.10.7 Checking the case with fault current below set value I>BlkCont ............................. 60
7.3.10.8 Checking the phase current operate value, IP> ............................................................60
7.3.10.9 Completing the test...........................................................................................................60
7.3.11 Stub protection STBPTOC...................................................................................................... 61
7.3.11.1 Measuring the operate limit of set values..................................................................... 61
7.3.11.2 Completing the test........................................................................................................... 61
7.3.12 Pole discordance protection CCRPLD.................................................................................. 61
7.3.12.1 Verifying the settings........................................................................................................ 62
7.3.12.2 Completing the test........................................................................................................... 62
7.3.13 Broken conductor check BRCPTOC ..................................................................................... 62
7.3.13.1 Measuring the operate and time limit of set values....................................................62
7.3.13.2 Completing the test........................................................................................................... 63
7.3.14 Directional underpower protection GUPPDUP ..................................................................63
7.3.14.1 Verifying the settings........................................................................................................ 63
7.3.14.2 Completing the test...........................................................................................................64
7.3.15 Directional overpower protection GOPPDOP ....................................................................64
7.3.15.1 Verifying the settings........................................................................................................ 65
7.3.15.2 Completing the test...........................................................................................................65
7.4 Testing voltage protection functions.................................................................................... 65
7.4.1 Two step undervoltage protection UV2PTUV ................................................................... 65
7.4.1.1 Verifying the setting.......................................................................................................... 65
7.4.1.2 Completing the test........................................................................................................... 67
7.4.2 Two step overvoltage protection OV2PTOV ......................................................................67
7.4.2.1 Verification of single-phase voltage and time delay to operate for Step 1............ 67
7.4.2.2 Completing the test...........................................................................................................68
7.4.3 Two step residual overvoltage protection ROV2PTOV ....................................................68
7.4.3.1 Verifying the settings........................................................................................................ 68
7.4.3.2 Completing the test...........................................................................................................69
7.4.4 Loss of voltage check LOVPTUV .......................................................................................... 69
7.4.4.1 Measuring the operate limit of set values.....................................................................69
7.4.4.2 Completing the test........................................................................................................... 70
7.5 Testing frequency protection functions................................................................................70
Table of contents
Breaker protection REQ650 3
Commissioning manual
© Copyright 2013 ABB. All rights reserved

7.5.1 Underfrequency protection SAPTUF ...................................................................................70
7.5.1.1 Verifying the settings........................................................................................................ 70
7.5.1.2 Completing the test............................................................................................................71
7.5.2 Overfrequency protection SAPTOF ...................................................................................... 71
7.5.2.1 Verifying the settings.........................................................................................................72
7.5.2.2 Completing the test........................................................................................................... 73
7.5.3 Rate-of-change frequency protection SAPFRC ................................................................. 73
7.5.3.1 Verifying the settings.........................................................................................................73
7.5.3.2 Completing the test........................................................................................................... 73
7.6 Testing secondary system supervision functions............................................................... 74
7.6.1 Current circuit supervision CCSRDIF ...................................................................................74
7.6.1.1 Verifying the settings........................................................................................................ 74
7.6.1.2 Completing the test........................................................................................................... 74
7.6.2 Fuse failure supervision SDDRFUF....................................................................................... 74
7.6.2.1 Checking that the binary inputs and outputs operate as expected ....................... 74
7.6.2.2 Measuring the operate value for the negative sequence function .......................... 75
7.6.2.3 Measuring the operate value for the zero-sequence function ................................. 76
7.6.2.4 Checking the operation of the du/dt and di/dt based function ............................. 76
7.6.2.5 Completing the test........................................................................................................... 77
7.7 Testing control functions..........................................................................................................77
7.7.1 Synchrocheck, energizing check, and synchronizing SESRSYN...................................... 77
7.7.1.1 Testing the synchronizing function................................................................................ 79
7.7.1.2 Testing the synchrocheck check..................................................................................... 80
7.7.1.3 Testing the energizing check........................................................................................... 83
7.7.1.4 Testing the voltage selection...........................................................................................84
7.7.1.5 Completing the test...........................................................................................................84
7.7.2 Autorecloser for 3-phase operation SMBRREC ................................................................. 84
7.7.2.1 Preparation of the verification ....................................................................................... 86
7.7.2.2 Switching the autorecloser for 3-phase operation function to On and Off ........... 86
7.7.2.3 Verifying the autorecloser for 3-phase operation function SMBRREC ................... 87
7.7.2.4 Checking the reclosing conditions .................................................................................87
7.7.2.5 Completing the test...........................................................................................................88
7.7.3 Autorecloser for 1/3-phase operation STBRREC .............................................................. 88
7.7.3.1 Preparation of the verification........................................................................................ 90
7.7.3.2 Switching the auto-reclosing function On and Off ..................................................... 90
7.7.3.3 Verifying the auto-reclosing function.............................................................................91
7.7.3.4 Checking the reclosing conditions.................................................................................. 91
7.7.3.5 Checking the influence of the INHIBIT signal................................................................ 91
7.7.3.6 Check closing onto a fault.................................................................................................91
7.7.3.7 Checking the influence of CB not ready for reclosing.................................................92
7.7.3.8 Checking the influence of synchrocheck (at three-phase reclosing)....................... 92
7.7.3.9 Restoring equipment......................................................................................................... 92
7.7.3.10 Completing the test........................................................................................................... 92
7.7.4 Interlocking................................................................................................................................92
7.8 Testing scheme communication functions.......................................................................... 93
7.9 Testing logic functions..............................................................................................................93
Table of contents
4Breaker protection REQ650
Commissioning manual
© Copyright 2013 ABB. All rights reserved

7.9.1 Tripping logic, common 3-phase output SMPPTRC ......................................................... 93
7.9.1.1 Three-phase operating mode.......................................................................................... 93
7.9.1.2 Circuit breaker lockout...................................................................................................... 93
7.9.1.3 Completing the test...........................................................................................................94
7.9.2 Tripping logic phase segregated output SPTPTRC ......................................................... 94
7.9.2.1 1ph/3ph operating mode..................................................................................................94
7.9.2.2 Circuit breaker lockout...................................................................................................... 95
7.9.2.3 Completing the test........................................................................................................... 95
7.10 Testing monitoring functions..................................................................................................95
7.10.1 Event counter CNTGGIO......................................................................................................... 95
7.10.2 Limit counter L4UFCNT.......................................................................................................... 96
7.10.2.1 Completing the test...........................................................................................................96
7.11 Testing metering functions..................................................................................................... 96
7.11.1 Pulse counter PCGGIO.............................................................................................................96
7.12 Testing station communication..............................................................................................96
7.12.1 Establishing connection and verifying the IEC 61850 communication.........................96
7.12.1.1 Overview...............................................................................................................................96
7.12.1.2 Setting the station communication................................................................................97
7.12.1.3 Verifying the station communication.............................................................................97
7.13 Exit test mode.............................................................................................................................98
Section 8 Commissioning and maintenance of the fault clearing system............ 99
8.1 Commissioning and maintenance of the fault clearing system.......................................99
8.1.1 Commissioning tests.............................................................................................................. 99
8.1.2 Periodic maintenance tests................................................................................................... 99
8.1.2.1 Visual inspection...............................................................................................................100
8.1.2.2 Maintenance tests............................................................................................................100
Section 9 Troubleshooting ........................................................................................ 103
9.1 Fault tracing.............................................................................................................................. 103
9.1.1 Identifying hardware errors................................................................................................. 103
9.1.2 Identifying runtime errors.................................................................................................... 103
9.1.3 Identifying communication errors......................................................................................103
9.1.3.1 Checking the communication link operation..............................................................103
9.1.3.2 Checking the time synchronization.............................................................................. 104
9.1.4 Running the display test.......................................................................................................104
9.2 Indication messages................................................................................................................104
9.2.1 Internal faults..........................................................................................................................104
9.2.2 Warnings.................................................................................................................................. 105
9.2.3 Additional indications........................................................................................................... 105
9.3 Correction procedures............................................................................................................ 106
9.3.1 Changing and setting the password..................................................................................106
9.3.2 Identifying IED application problems................................................................................ 106
9.3.2.1 Inspecting the wiring.......................................................................................................106
Section 10 Glossary........................................................................................................111
Table of contents
Breaker protection REQ650 5
Commissioning manual
© Copyright 2013 ABB. All rights reserved

6

Section 1 Introduction
1.1 This manual
GUID-AB423A30-13C2-46AF-B7FE-A73BB425EB5F v14
The commissioning manual contains instructions on how to commission the IED. The manual
can also be used by system engineers and maintenance personnel for assistance during the
testing phase. The manual provides procedures for the checking of external circuitry and
energizing the IED, parameter setting and configuration as well as verifying settings by
secondary injection. The manual describes the process of testing an IED in a substation which
is not in service. The chapters are organized in the chronological order in which the IED should
be commissioned. The relevant procedures may be followed also during the service and
maintenance activities.
1.2 Intended audience
GUID-C9B8127F-5748-4BEA-9E4F-CC762FE28A3A v9
This manual addresses the personnel responsible for commissioning, maintenance and taking
the IED in and out of normal service.
The commissioning personnel must have a basic knowledge of handling electronic equipment.
The commissioning and maintenance personnel must be well experienced in using protection
equipment, test equipment, protection functions and the configured functional logics in the
IED.
1MRK 505 293-UEN B Section 1
Introduction
Breaker protection REQ650 7
Commissioning manual
© Copyright 2013 ABB. All rights reserved

1.3 Product documentation
1.3.1 Product documentation set GUID-3AA69EA6-F1D8-47C6-A8E6-562F29C67172 v12
IEC07000220-3-en.vsd
Planning & purchase Engineering Installing Commissioning Operation Maintenance Decommissioning Deinstalling & disposal
Application manual
Operation manual
Installation manual
Engineering manual
Communication
protocol manual
Technical manual
Commissioning manual
IEC07000220 V3 EN-US
Figure 1: The intended use of manuals throughout the product lifecycle
The engineering manual contains instructions on how to engineer the IEDs using the various
tools available within the PCM600 software. The manual provides instructions on how to set
up a PCM600 project and insert IEDs to the project structure. The manual also recommends a
sequence for the engineering of protection and control functions, LHMI functions as well as
communication engineering for IEC 60870-5-103, IEC 61850 and DNP 3.0.
The installation manual contains instructions on how to install the IED. The manual provides
procedures for mechanical and electrical installation. The chapters are organized in the
chronological order in which the IED should be installed.
The commissioning manual contains instructions on how to commission the IED. The manual
can also be used by system engineers and maintenance personnel for assistance during the
testing phase. The manual provides procedures for the checking of external circuitry and
energizing the IED, parameter setting and configuration as well as verifying settings by
secondary injection. The manual describes the process of testing an IED in a substation which
is not in service. The chapters are organized in the chronological order in which the IED should
be commissioned. The relevant procedures may be followed also during the service and
maintenance activities.
The operation manual contains instructions on how to operate the IED once it has been
commissioned. The manual provides instructions for the monitoring, controlling and setting of
the IED. The manual also describes how to identify disturbances and how to view calculated
and measured power grid data to determine the cause of a fault.
Section 1 1MRK 505 293-UEN B
Introduction
8Breaker protection REQ650
Commissioning manual
© Copyright 2013 ABB. All rights reserved

The application manual contains application descriptions and setting guidelines sorted per
function. The manual can be used to find out when and for what purpose a typical protection
function can be used. The manual can also provides assistance for calculating settings.
The technical manual contains application and functionality descriptions and lists function
blocks, logic diagrams, input and output signals, setting parameters and technical data,
sorted per function. The manual can be used as a technical reference during the engineering
phase, installation and commissioning phase, and during normal service.
The communication protocol manual describes the communication protocols supported by
the IED. The manual concentrates on the vendor-specific implementations.
The point list manual describes the outlook and properties of the data points specific to the
IED. The manual should be used in conjunction with the corresponding communication
protocol manual.
1.3.2 Document revision history GUID-52A4699C-F83B-48F8-BF4E-D853043AB731 v5.1.1.1.1
1.3.3 Related documents GUID-DEA16B32-29D9-40B2-BC9F-12F3AEA90245 v7
Documents related to REQ650 Identity number
Application manual 1MRK 505 291-UEN
Technical manual 1MRK 505 292-UEN
Commissioning manual 1MRK 505 293-UEN
Product Guide 1MRK 505 294-BEN
Type test certificate 1MRK 505 294-TEN
Application notes for Circuit Breaker Control 1MRG006806
650 series manuals Identity number
Communication protocol manual, DNP 3.0 1MRK 511 280-UEN
Communication protocol manual, IEC 61850–8–1 1MRK 511 281-UEN
Communication protocol manual, IEC 60870-5-103 1MRK 511 282-UEN
Cyber Security deployment guidelines 1MRK 511 285-UEN
Point list manual, DNP 3.0 1MRK 511 283-UEN
Engineering manual 1MRK 511 284-UEN
Operation manual 1MRK 500 096-UEN
Installation manual 1MRK 514 016-UEN
Accessories, 650 series 1MRK 513 023-BEN
MICS 1MRG 010 656
PICS 1MRG 010 660
PIXIT 1MRG 010 658
1MRK 505 293-UEN B Section 1
Introduction
Breaker protection REQ650 9
Commissioning manual
© Copyright 2013 ABB. All rights reserved
Document revision/date History
-/March 2013 First release
A/October 2016 Minor corrections made
B/November 2019 Maintenance release - Updated safety information and bug corrections

1.4 Symbols and conventions
1.4.1 Symbols GUID-2945B229-DAB0-4F15-8A0E-B9CF0C2C7B15 v9
The electrical warning icon indicates the presence of a hazard which could
result in electrical shock.
The warning icon indicates the presence of a hazard which could result in
personal injury.
The caution icon indicates important information or warning related to the
concept discussed in the text. It might indicate the presence of a hazard which
could result in corruption of software or damage to equipment or property.
The information icon alerts the reader of important facts and conditions.
The tip icon indicates advice on, for example, how to design your project or
how to use a certain function.
Although warning hazards are related to personal injury, it is necessary to understand that
under certain operational conditions, operation of damaged equipment may result in
degraded process performance leading to personal injury or death. It is important that the
user fully complies with all warning and cautionary notices.
1.4.2 Document conventions GUID-96DFAB1A-98FE-4B26-8E90-F7CEB14B1AB6 v2
• Abbreviations and acronyms in this manual are spelled out in the glossary. The glossary
also contains definitions of important terms.
• Push button navigation in the LHMI menu structure is presented by using the push button
icons.
For example, to navigate between the options, use and .
• HMI menu paths are presented in bold.
For example, select Main menu/Settings.
• LHMI messages are shown in Courier font.
For example, to save the changes in non-volatile memory, select Yes and press .
• Parameter names are shown in italics.
For example, the function can be enabled and disabled with the
Operation setting.
• Each function block symbol shows the available input/output signal.
• the character ^ in front of an input/output signal name indicates that the signal
name may be customized using the PCM600 software.
• the character * after an input/output signal name indicates that the signal must be
connected to another function block in the application configuration to achieve a
valid application configuration.
Section 1 1MRK 505 293-UEN B
Introduction
10 Breaker protection REQ650
Commissioning manual
© Copyright 2013 ABB. All rights reserved

Section 2 Safety information
2.1 Symbols on the product
GUID-E48F2EC3-6AB8-4ECF-A77E-F16CE45CA5FD v4
All warnings must be observed.
Read the entire manual before doing installation or any maintenance work on
the product.
Class 1 Laser product. Take adequate measures to protect your eyes and do not
view directly with optical instruments.
2.2 Warnings
IP1504-1 v2
Observe the warnings during all types of work related to the product.
GUID-C9B6638A-57E7-4E05-9A33-A60E359C54AF v1
Only electrically skilled persons with the proper authorization and knowledge of
any safety hazards are allowed to carry out the electrical installation.
M2366-2 v2
National and local electrical safety regulations must always be followed.
Working in a high voltage environment requires serious approach to avoid
human injuries and damage to equipment.
M2362-2 v1
Do not touch circuitry during operation. Potentially lethal voltages and currents
are present.
M2364-2 v1
Always use suitable isolated test pins when measuring signals in open circuitry.
Potentially lethal voltages and currents are present.
M2370-2 v1
Never connect or disconnect a wire and/or a connector to or from a IED during
normal operation. Hazardous voltages and currents are present that may be
lethal. Operation may be disrupted and IED and measuring circuitry may be
damaged.
1MRK 505 293-UEN B Section 2
Safety information
Breaker protection REQ650 11
Commissioning manual
© Copyright 2013 ABB. All rights reserved

GUID-BEDD698E-356C-4CF9-9DAE-64DB3CEADEAD v1
Dangerous voltages can occur on the connectors, even though the auxiliary
voltage has been disconnected.
M2369-2 v3
Always connect the IED to protective earth, regardless of the operating
conditions. This also applies to special occasions such as bench testing,
demonstrations and off-site configuration. This is class 1 equipment that shall
be earthed.
M2372-2 v1
Never remove any screw from a powered IED or from a IED connected to
powered circuitry. Potentially lethal voltages and currents are present.
SEMOD168311-3 v1
Take adequate measures to protect the eyes. Never look into the laser beam.
GUID-11CCF92B-E9E7-409C-84D0-DFDEA1DCBE85 v2
2.3 Caution signs
IP1503-1 v1
GUID-5D1412B8-8F9D-4D39-B6D1-60FB35797FD0 v2
Whenever changes are made in the IED, measures should be taken to avoid
inadvertent tripping.
GUID-F2A7BD77-80FB-48F0-AAE5-BE73DE520CC2 v1
The IED contains components which are sensitive to electrostatic discharge.
ESD precautions shall always be observed prior to touching components.
M2695-2 v2
Always transport PCBs (modules) using certified conductive bags.
M2696-2 v1
Do not connect live wires to the IED. Internal circuitry may be damaged
M2697-2 v2
Always use a conductive wrist strap connected to protective earth when
replacing modules. Electrostatic discharge (ESD) may damage the module and
IED circuitry.
M2698-2 v2
Take care to avoid electrical shock during installation and commissioning.
Section 2 1MRK 505 293-UEN B
Safety information
12 Breaker protection REQ650
Commissioning manual
© Copyright 2013 ABB. All rights reserved

M2693-2 v1
Changing the active setting group will inevitably change the IEDs operation. Be
careful and check regulations before making the change.
2.4 Note signs
IP1497-1 v1
M19-2 v3.1.1
Observe the maximum allowed continuous current for the different current
transformer inputs of the IED. See technical data.
1MRK 505 293-UEN B Section 2
Safety information
Breaker protection REQ650 13
Commissioning manual
© Copyright 2013 ABB. All rights reserved

14