Hitachi Relion 670 Series User manual

Relion 670 SERIES
670 series
Version 2.2 ANSI
Operation manual

Document ID: 1MRK500127-UUS
Issued: June 2023
Revision: M
Product version: 2.2
© 2017 - 2023 Hitachi Energy. All rights reserved

Copyright
This document and parts thereof must not be reproduced or copied without written permission from
Hitachi Energy, 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
(https://www.openssl.org/). This product includes cryptographic software written/developed by: Eric
Young ([email protected]) and Tim Hudson ([email protected]).
Trademarks
ABB is a registered trademark of ABB Asea Brown Boveri Ltd. Manufactured by/for a Hitachi Energy
company. 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 Hitachi Energy representative.

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 Hitachi Energy, 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 Hitachi Energy be responsible or liable for any
loss or damage resulting from the use of this manual or the application of the equipment.

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 Hitachi Energy in accordance
with the product standard 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 and ANSI C37.90.

Table of contents
Section 1 Introduction.........................................................................................................5
1.1 This manual.................................................................................................................................5
1.2 Intended audience.......................................................................................................................5
1.3 Product documentation............................................................................................................... 6
1.3.1 Product documentation set........................................................................................................6
1.3.2 Document revision history......................................................................................................... 7
1.3.3 Related documents................................................................................................................... 8
1.4 Document symbols and conventions.........................................................................................10
1.4.1 Symbols...................................................................................................................................10
1.4.2 Document conventions............................................................................................................10
Section 2 Safety information............................................................................................ 13
2.1 Symbols on the product.............................................................................................................13
2.2 Warnings................................................................................................................................... 13
2.3 Caution signs.............................................................................................................................14
2.4 Note signs................................................................................................................................. 15
Section 3 Environmental aspects.................................................................................... 17
3.1 Sustainable development.......................................................................................................... 17
3.2 Disposing of the IED..................................................................................................................17
Section 4 Overview ...........................................................................................................19
4.1 Local HMI.................................................................................................................................. 19
4.1.1 Display.....................................................................................................................................20
4.1.2 LEDs........................................................................................................................................22
4.1.3 Keypad.................................................................................................................................... 23
4.1.4 Local HMI functionality............................................................................................................ 26
4.1.4.1 Status indication.................................................................................................................26
4.1.4.2 Protection and alarm indication..........................................................................................26
4.1.4.3 Parameter management ....................................................................................................28
4.1.4.4 Front communication..........................................................................................................28
4.1.4.5 Single-line diagram.............................................................................................................29
4.1.4.6 Operation indication symbols............................................................................................. 30
4.2 Authorization............................................................................................................................. 30
4.3 Communication......................................................................................................................... 31
4.4 PCM600 tool..............................................................................................................................32
4.4.1 Connectivity packages............................................................................................................ 33
Section 5 Using the HMI....................................................................................................35
5.1 Using the local HMI................................................................................................................... 35
1MRK500127-UUS Rev. M Table of contents
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© 2017 - 2023 Hitachi Energy. All rights reserved

5.1.1 On-screen keyboard................................................................................................................35
5.1.2 Logging on...............................................................................................................................36
5.1.3 Logging off...............................................................................................................................38
5.1.4 Turning the display backlight on.............................................................................................. 38
5.1.5 Selecting local or remote use.................................................................................................. 39
5.1.6 Identifying the device...............................................................................................................39
5.1.7 Adjusting the display contrast..................................................................................................40
5.1.8 Changing the local HMI language........................................................................................... 40
5.1.9 Navigating in the menu............................................................................................................40
5.1.9.1 Menu structure................................................................................................................... 40
5.1.9.2 Scrolling the display........................................................................................................... 41
5.1.9.3 Changing the default view..................................................................................................41
5.1.10 Using function buttons.............................................................................................................41
5.1.11 Using the single-line diagram.................................................................................................. 42
5.1.12 Browsing setting values...........................................................................................................43
5.1.13 Editing values.......................................................................................................................... 44
5.1.13.1 Editing numerical values.................................................................................................... 44
5.1.13.2 Editing string values........................................................................................................... 46
5.1.13.3 Editing enumerated values.................................................................................................47
5.1.13.4 Changing time settings in LHMI......................................................................................... 47
5.1.14 Saving settings........................................................................................................................ 47
5.1.15 Clearing and acknowledging................................................................................................... 48
5.1.16 Using the local HMI help......................................................................................................... 48
Section 6 IED operation ................................................................................................... 51
6.1 Normal operation.......................................................................................................................51
6.2 Disturbance identification.......................................................................................................... 51
6.2.1 DFR recording triggering ........................................................................................................ 51
6.2.2 DFR record analysis ...............................................................................................................52
6.2.3 DFR reports ............................................................................................................................52
6.2.4 IED self-supervision................................................................................................................ 52
6.2.5 Non-operative functions.......................................................................................................... 52
6.3 IED parameterization ................................................................................................................53
6.3.1 IED settings for IED functionality.............................................................................................53
6.3.2 IED settings for different operating conditions.........................................................................53
Section 7 Operating procedures...................................................................................... 55
7.1 Monitoring..................................................................................................................................55
7.1.1 Indications............................................................................................................................... 55
7.1.1.1 Using auto-indication messages........................................................................................ 55
7.1.1.2 Monitoring alarm data.........................................................................................................56
7.1.1.3 Monitoring an internal IED fault .........................................................................................56
7.1.2 Measured and calculated values.............................................................................................57
Table of contents 1MRK500127-UUS Rev. M
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Operation manual
© 2017 - 2023 Hitachi Energy. All rights reserved

7.1.2.1 Measured values................................................................................................................57
7.1.2.2 Using the local HMI for monitoring..................................................................................... 57
7.1.3 Recorded data.........................................................................................................................57
7.1.3.1 Creating disturbance recordings........................................................................................ 58
7.1.3.2 Monitoring disturbance recorder data.................................................................................58
7.1.3.3 Controlling and uploading DFR recorder data ...................................................................59
7.1.3.4 Monitoring events...............................................................................................................60
7.1.4 Remote monitoring.................................................................................................................. 60
7.1.4.1 Monitoring the IED remotely...............................................................................................60
7.1.5 Through fault monitoring report............................................................................................... 61
7.1.5.1 Through fault monitoring tool..............................................................................................61
7.1.5.2 Through fault monitoring using local HMI...........................................................................66
7.2 Controlling................................................................................................................................. 68
7.2.1 Controlling circuit breakers and disconnectors........................................................................68
7.3 Resetting the IED...................................................................................................................... 69
7.3.1 Clearing and acknowledging via the local HMI........................................................................69
7.4 Changing the IED functionality.................................................................................................. 70
7.4.1 Defining the setting group....................................................................................................... 70
7.4.1.1 Activating a setting group...................................................................................................70
7.4.1.2 Browsing and editing setting group values.........................................................................71
7.4.2 Activating LEDs....................................................................................................................... 73
Section 8 REX060 injection unit LHMI............................................................................. 75
8.1 REX060 injection unit HMI (REG670 only)................................................................................75
8.1.1 Injection unit REX060..............................................................................................................75
8.1.2 REX060 start up sequence..................................................................................................... 75
8.1.3 REX060 Front panel controls.................................................................................................. 76
8.1.4 Display.....................................................................................................................................77
8.1.5 How to set frequency and voltage and current gain factors.................................................... 78
8.1.5.1 Setting system frequency...................................................................................................79
8.1.5.2 Setting stator and rotor injection frequency........................................................................79
8.1.5.3 Selecting rotor gain............................................................................................................ 79
8.1.5.4 Selecting stator gain...........................................................................................................79
8.1.5.5 Resetting overvoltage.........................................................................................................80
Section 9 Troubleshooting ...............................................................................................81
9.1 Fault tracing...............................................................................................................................81
9.1.1 Identifying hardware errors......................................................................................................81
9.1.2 Identifying runtime errors.........................................................................................................81
9.1.3 Identifying blocked functions................................................................................................... 81
9.1.4 Identifying communication errors............................................................................................ 81
9.1.4.1 Checking the communication link operation.......................................................................82
9.1.4.2 Checking the time synchronization.....................................................................................82
1MRK500127-UUS Rev. M Table of contents
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© 2017 - 2023 Hitachi Energy. All rights reserved

9.1.5 Running the display test.......................................................................................................... 82
9.1.6 Diagnosing the IED status via the LHMI hint menu.................................................................82
9.2 Indication messages..................................................................................................................85
9.2.1 Internal faults...........................................................................................................................85
9.2.2 Warnings................................................................................................................................. 86
9.2.3 Additional indications...............................................................................................................87
9.3 Correction procedures...............................................................................................................87
9.3.1 Creating user accounts and setting and changing passwords................................................ 87
9.3.1.1 Changing the password from the LHMI..............................................................................87
9.3.2 Identifying IED application problems....................................................................................... 88
9.3.2.1 Inspecting the wiring...........................................................................................................88
Section 10 Glossary............................................................................................................ 91
Appendix Third Party Copyright Notices.........................................................................99
1.1 PG Custom License: Cyotec License........................................................................................99
1.1.1 CyoEncode 1.0.1.....................................................................................................................99
1.2 Carnegie Mellon University License.......................................................................................... 99
1.2.1 Cyrus SASL 2.1.26..................................................................................................................99
1.3 Gary McNickle MD5 C++ Library License............................................................................... 100
1.3.1 Gary McNickle MD5 C++ Implementation 1.......................................................................... 100
1.4 PG Custom License: LGPL 2.1 with Libtool Exception........................................................... 101
1.4.1 GNU Libtool release-1-4b......................................................................................................101
1.5 Creative Commons Zero v1.0 Universal................................................................................. 101
1.5.1 SipHash 1.0...........................................................................................................................101
1.6 CMU License...........................................................................................................................103
1.6.1 Net-SNMP 5.9.3.................................................................................................................... 103
1.7 MIT License.............................................................................................................................104
1.7.1 libexpat 2.5.0, Net-SNMP 5.9.3.............................................................................................104
1.8 BSD 3-clause "New" or "Revised" License..............................................................................104
1.8.1 Net-SNMP 5.9.3.................................................................................................................... 104
1.9 Open LDAP Public License v2.8............................................................................................. 105
1.9.1 OpenLDAP 2.4.46................................................................................................................. 105
1.10 OpenSSL Combined License.................................................................................................. 106
1.10.1 OpenSSL 1.1.1t.....................................................................................................................106
1.11 Berkeley Public License (BSD 2.0 -)....................................................................................... 108
1.11.1 vfprintf.c 1.0...........................................................................................................................108
Table of contents 1MRK500127-UUS Rev. M
4670 series
Operation manual
© 2017 - 2023 Hitachi Energy. All rights reserved

Section 1 Introduction
1.1 This manual GUID-AB423A30-13C2-46AF-B7FE-A73BB425EB5F v21
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.
1.2 Intended audience GUID-C9B8127F-5748-4BEA-9E4F-CC762FE28A3A v11
This manual addresses the operator, who operates the IED on a daily basis.
The operator must be trained in and have a basic knowledge of how to operate protection equipment.
The manual contains terms and expressions commonly used to describe this kind of equipment.
1MRK500127-UUS Rev. M Section 1
Introduction
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Operation manual
© 2017 - 2023 Hitachi Energy. All rights reserved

1.3 Product documentation
1.3.1 Product documentation set GUID-3AA69EA6-F1D8-47C6-A8E6-562F29C67172 v16
IEC07000220-4-en.vsd
Planning & purchase Engineering Installing Commissioning Operation Maintenance Decommissioning Deinstalling & disposal
Application manual
Operation manual
Installation manual
Engineering manual
Communication
protocol manual
Cyber security
deployment guideline
Technical manual
Commissioning manual
IEC07000220 V4 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, as well as communication engineering for IEC 61850.
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
Section 1 1MRK500127-UUS Rev. M
Introduction
6670 series
Operation manual
© 2017 - 2023 Hitachi Energy. All rights reserved

describes how to identify disturbances and how to view calculated and measured power grid data to
determine the cause of a fault.
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 provide assistance for calculating settings.
The technical manual contains operation principle 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.
The cyber security deployment guideline describes the process for handling cyber security when
communicating with the IED. Certification, Authorization with role based access control, and product
engineering for cyber security related events are described and sorted by function. The guideline can be
used as a technical reference during the engineering phase, installation and commissioning phase, and
during normal service.
1.3.2 Document revision history GUID-34B323E4-1319-4D42-80CE-29B0F2D36E2C v8
Document
revision
Date Product version History
- 2017–05 2.2.0 First release for product version 2.2
A 2017–10 2.2.1 Ethernet ports with RJ45 connector added.
B 2018–03 2.2.1 Document enhancements and corrections
C 2018–06 2.2.2 Technical data updated for PSM. Case dimensions
updated.
D 2018–11 2.2.3 Functions CHMMHAI, VHMMHAI, DELVSPVC,
DELISPVC and DELSPVC added. Updates/
enhancements made to ZMFPDIS, ZMFCPDIS,
CCRBRF, REALCOMP, PTRSTHR and FNKEYMDx.
Ordering section updated.
E 2019-05 2.2.3 PTP enhancements and corrections
F Document not released
G Document not released
H Document not released
J 2020-09 2.2.4 Minor document enhancements and corrections
K 2021-06 2.2.5 Minor document enhancements and corrections
L 2022-07 2.2.5.4 Introduced RIA600, which is a software implementation
of the IED LHMI panel.
M 2023-06 2.2.6 Minor document enhancements and corrections
1MRK500127-UUS Rev. M Section 1
Introduction
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Operation manual
© 2017 - 2023 Hitachi Energy. All rights reserved

1.3.3 Related documents GUID-94E8A5CA-BE1B-45AF-81E7-5A41D34EE112 v10
Documents related to REB670 Document numbers
Application manual ANSI: 1MRK505370-UUS
Commissioning manual ANSI: 1MRK505372-UUS
Product guide 1MRK505373-BEN
Technical manual ANSI: 1MRK505371-UUS
Type test certificate ANSI: 1MRK505373-TUS
Documents related to REC670 Document numbers
Application manual ANSI: 1MRK511401-UUS
Commissioning manual ANSI: 1MRK511403-UUS
Product guide 1MRK511404-BEN
Technical manual ANSI: 1MRK511402-UUS
Type test certificate ANSI: 1MRK511404-TUS
Documents related to RED670 Document numbers
Application manual ANSI: 1MRK505376-UUS
Commissioning manual ANSI: 1MRK505378-UUS
Product guide 1MRK505379-BEN
Technical manual ANSI: 1MRK505377-UUS
Type test certificate ANSI: 1MRK505379-TUS
Documents related to REG670 Document numbers
Application manual ANSI: 1MRK502071-UUS
Commissioning manual ANSI: 1MRK502073-UUS
Product guide 1MRK502074-BEN
Technical manual ANSI: 1MRK502072-UUS
Type test certificate ANSI: 1MRK502074-TUS
Documents related to REL670 Document numbers
Application manual ANSI: 1MRK506369-UUS
Commissioning manual ANSI: 1MRK506371-UUS
Product guide 1MRK506372-BEN
Technical manual ANSI: 1MRK506370-UUS
Type test certificate ANSI: 1MRK506372-TUS
Section 1 1MRK500127-UUS Rev. M
Introduction
8670 series
Operation manual
© 2017 - 2023 Hitachi Energy. All rights reserved

Documents related to RET670 Document numbers
Application manual ANSI: 1MRK504163-UUS
Commissioning manual ANSI: 1MRK504165-UUS
Product guide 1MRK504166-BEN
Technical manual ANSI: 1MRK504164-UUS
Type test certificate ANSI: 1MRK504166-TUS
Documents related to RES670 Document numbers
Application manual ANSI: 1MRK511407-UUS
Commissioning manual ANSI: 1MRK511409-UUS
Product guide 1MRK511410-BEN
Technical manual ANSI: 1MRK511408-UUS
Type test certificate ANSI: 1MRK511410-TUS
Documents related to RER670 Document numbers
Application manual
Commissioning manual
Product guide 1MRK506378-BEN
Technical manual
Type test certificate
670 series manuals Document numbers
Operation manual ANSI: 1MRK500127-UUS
Engineering manual ANSI: 1MRK511398-UUS
Installation manual ANSI: 1MRK514026-UUS
Communication protocol manual, DNP3 1MRK511391-UUS
Communication protocol manual, IEC 61850 Edition 2 and
Edition 2.1
1MRK511393-UEN
Point list manual, DNP3 1MRK511397-UUS
Accessories guide ANSI: 1MRK514012-BUS
Connection and Installation components 1MRK513003-BEN
Test system, COMBITEST 1MRK512001-BEN
1MRK500127-UUS Rev. M Section 1
Introduction
670 series 9
Operation manual
© 2017 - 2023 Hitachi Energy. All rights reserved

1.4 Document symbols and conventions
1.4.1 Symbols GUID-2945B229-DAB0-4F15-8A0E-B9CF0C2C7B15 v13
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 hot surface icon indicates important information or warning about the temperature
of product surfaces.
Class 1 Laser product. Take adequate measures to protect the eyes and do not view directly
with optical instruments.
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 v9
• 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.
Section 1 1MRK500127-UUS Rev. M
Introduction
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Operation manual
© 2017 - 2023 Hitachi Energy. All rights reserved

• 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 signal name indicates that the signal must be connected to
another function block in the application configuration to achieve a valid application
configuration.
• Dimensions are provided both in inches and millimeters. If it is not specifically mentioned then the
dimension is in millimeters.
1MRK500127-UUS Rev. M Section 1
Introduction
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12

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.
Do not touch the unit in operation. The installation shall take into account the worst case
temperature.
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.
1MRK500127-UUS Rev. M Section 2
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Operation manual
© 2017 - 2023 Hitachi Energy. 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 ground, 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 grounded.
M2367-2 v1
Never disconnect the secondary connection of current transformer circuit without short-
circuiting the transformer’s secondary winding. Operating a current transformer with the
secondary winding open will cause a massive potential build-up that may damage the
transformer and may cause injuries to humans.
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
The IED with accessories should be mounted in a cubicle in a restricted access area within a
power station, substation or industrial or retail environment.
2.3 Caution signs IP1503-1 v1
GUID-5D1412B8-8F9D-4D39-B6D1-60FB35797FD0 v3
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
Section 2 1MRK500127-UUS Rev. M
Safety information
14 670 series
Operation manual
© 2017 - 2023 Hitachi Energy. All rights reserved