Siemens SENTRON 3WA User guide

SENTRON
Protection devices
3WA Air Circuit Breaker
Communication
System Manual
11/2021
92310000004
-02
Introduction
1
System description
2
Status of the circuit breaker
3
Parameterization and
remote control
4
Modbus TCP
5
PROFINET IO
6
Disposal
7
ESD guidelines
A
List of abbreviations
B

Siemens AG
Smart Infrastructure
Electrical Products
Postfach 10 09 53
93009 Regensburg
GERMANY
92310000004-02
Ⓟ
12/2021 Subject to change
Copyright © Siemens AG 2021.
All rights reserved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

3WA Air Circuit Breaker Communication
System Manual, 11/2021, 92310000004-02 3
Table of contents
1 Introduction ........................................................................................................................................... 5
1.1 Scope of validity of this document........................................................................................ 5
1.2 Target readers of this documentation................................................................................... 5
1.3 Technical Support ................................................................................................................ 5
1.4 Reference documents .......................................................................................................... 5
1.5 Advanced training courses ................................................................................................... 6
1.6 Safety instructions ............................................................................................................... 7
1.6.1 Safety regulations................................................................................................................ 7
1.6.2 Security information ............................................................................................................ 8
1.6.3 Open Source Software ......................................................................................................... 8
1.6.4 More information on Open Source software for 3WA circuit breakers.................................... 9
1.7 Standards .......................................................................................................................... 10
2 System description .............................................................................................................................. 11
2.1 The 3WA air circuit breaker ................................................................................................ 11
2.2 The CubicleBUS² bus system............................................................................................... 11
2.3 COM190 communication module....................................................................................... 13
3 Status of the circuit breaker ................................................................................................................ 15
3.1 Introduction ...................................................................................................................... 15
3.2 The ETU600 electronic trip unit as an information center.................................................... 16
3.3 Indication of tripping cause................................................................................................ 17
3.4 Status of the ETU ............................................................................................................... 18
3.5 Status of the mechanical system ........................................................................................ 20
3.6 Status of position of withdrawable circuit breaker in the guide frame ................................. 21
3.7 DAS+ status ....................................................................................................................... 22
3.8 Status of warnings ............................................................................................................. 24
3.9 Status of alarms................................................................................................................. 25
3.10 Activation status of protective functions............................................................................. 26
3.11 Status of the ETU error messages (self-monitoring function)............................................... 27
3.12 Status of the main contacts of the circuit breaker ............................................................... 28
4 Parameterization and remote control ................................................................................................. 29
4.1 Parameterization of the protection parameters................................................................... 29
4.2 Close/open circuit breaker via Modbus TCP......................................................................... 33

Table of contents
3WA Air Circuit Breaker Communication
4System Manual, 11/2021, 92310000004-02
4.3 Parameterization of ground-fault protection (GF) ............................................................... 34
5 Modbus TCP ......................................................................................................................................... 35
5.1 General ............................................................................................................................. 35
5.2 Addressing ........................................................................................................................ 35
5.3 Function codes, metering values and parameters ............................................................... 36
5.3.1 Function codes .................................................................................................................. 36
5.3.2 Metering values, parameters and commands ..................................................................... 36
5.3.2.1 Reading metering values and parameters........................................................................... 36
5.3.2.2 Writing parameters ............................................................................................................ 36
5.3.2.3 Writing commands ............................................................................................................ 37
5.4 Transactions ...................................................................................................................... 38
5.5 MODBUS error codes ......................................................................................................... 38
5.6 Invalid values..................................................................................................................... 39
5.7 Difference between Modbus register number and register address ..................................... 39
5.8 Modbus TCP whitelist......................................................................................................... 39
5.9 Configurable Modbus TCP port........................................................................................... 43
5.10 System time with SNTP ...................................................................................................... 43
5.10.1 Requirement...................................................................................................................... 43
5.10.2 Settings............................................................................................................................. 44
5.10.3 Data points........................................................................................................................ 45
5.10.4 Parameters ........................................................................................................................ 46
6 PROFINET IO......................................................................................................................................... 47
6.1 General ............................................................................................................................. 47
6.2 Technical specifications of the communication interfaces ................................................... 48
6.3 Metering values, addressing und data traffic ...................................................................... 49
6.3.1 Metering values................................................................................................................. 49
6.3.2 Cyclic data traffic ............................................................................................................... 51
6.3.3 Acyclic data traffic ............................................................................................................. 62
6.4 Interrupt, error and system messages................................................................................. 66
6.4.1 General ............................................................................................................................. 66
6.4.2 Structure of the diagnostic messages ................................................................................. 66
6.4.3 Diagnostic and maintenance alarm messages..................................................................... 72
6.4.4 Process alarm messages..................................................................................................... 74
7 Disposal ............................................................................................................................................... 75
A ESD guidelines ..................................................................................................................................... 77
A.1 Electrostatic sensitive devices (ESD) ................................................................................... 77
B List of abbreviations ............................................................................................................................ 79
B.1 Table of abbreviations........................................................................................................ 79

3WA Air Circuit Breaker Communication
System Manual, 11/2021, 92310000004-02 5
Introduction
1
1.1 Scope of validity of this document
This system manual is a reference manual for technical information that users will need to
configure and integrate the 3WA air circuit breakers and their communication components in
power distribution equipment.
1.2 Target readers of this documentation
The information contained in this manual is provided for the benefit of:
•Users
•Programmers
1.3 Technical Support
You can find further support on the Internet at:
TechnicalSupport (https://www.siemens.com/support-request)
1.4 Reference documents
For more information, refer to the following documents:
Title
Part number
3WA Air Circuit Breakers
Equipment Manual
(https://support.industry.siemens.com/cs/ww/en/view/109763061)
3WA Air Circuit Breakers
Catalog (https://support.industry.siemens.com/cs/ww/en/view/109781806)
E86060-K8280-E401
Catalog LV 10 - Low-Voltage Power Distribution and Electrical Installation
Technology
Catalog (https://support.industry.siemens.com/cs/ww/de/view/109482234)
E86060-K8280-A101
3KC ATC3100 Transfer Control Devices
Manual (https://support.industry.siemens.com/cs/ww/en/view/100341671)
3KC ATC6300 Transfer Control Devices
Manual (https://support.industry.siemens.com/cs/ww/en/view/109755149)
3KC ATC6500 Transfer Control Devices
Manual (https://support.industry.siemens.com/cs/ww/en/view/109758018)
7KN Powercenter 3000
Manual (https://support.industry.siemens.com/cs/ww/en/view/109763838)

Introduction
1.5 Advanced training courses
3WA Air Circuit Breaker Communication
6System Manual, 11/2021, 92310000004-02
Title
Part number
Hartmut Kiank, Wolfgang Fruth:
Planning Guide for Power Distribution Plants, Publicis Publishing
ISBN A19100-L531-
B115
Schalten, Schützen, Verteilen in Niederspannungsnetzen (Switching, Protec-
tion and Distribution in Low-Voltage Networks), substantially extended and
revised edition 1997
ISBN 3-89578-041-3
Siemens: Residual Current Protective Devices, Low-Voltage Circuit Protec-
tion Technology Primer Siemens AG © 04 / 2009
E10003-E38-9T-B3011
Modbus register for the 3WA air circuit breaker
Data Tables
(https://support.industry.siemens.com/cs/ww/en/view/109794278)
1.5 Advanced training courses
Find out about training courses on offer on the following link.
Training for Industry (https://www.siemens.com/sitrain-lowvoltage)
Here you can choose from:
•Web-based training courses (online, informative, free)
•Classroom training courses (course attendance, comprehensive, subject to fee)
You also have the possibility of compiling your own training portfolio via Learning paths.

Introduction
1.6 Safety instructions
3WA Air Circuit Breaker Communication
System Manual, 11/2021, 92310000004-02 7
1.6 Safety instructions
1.6.1 Safety regulations
DANGER
Hazardous voltage
Will cause death, serious personal injury, or equipment damage.
During operation, parts of the device or system are carrying hazardous electrical voltage.
Improper handling of the device or system can result in death or serious injury, as well as
significant material damage.
•Inspection and maintenance may only be performed by qualified personnel.
•Pay attention to all the notices provided on the product and in this manual.
•Before commencing maintenance work, ensure that no voltage is present on the power
distribution equipment and make sure that this condition is maintained while work is
being performed (according to EN 50110-1, DIN VDE 0105-100 and BGV A2).
Proceed in accordance with the Five Safety Rules:
–Turn off all power supplying the equipment.
–Lock out all power supplying the equipment to secure against reconnection.
–Verify that no voltage is present on the device.
–Ground and short the circuit.
–
Provide protection against adjacent live parts.
Qualified personnel
Inspection and maintenance may only be performed by qualified personnel.
In the context of these operating instructions and the warning notices on the product,
qualified personnel refers to persons who are familiar with the erection, installation,
commissioning and operation of the product and who possess the qualifications appropriate
for their activities, e.g.:
•Training or instruction/authorization to close and open, ground, and tag circuits and
devices and systems in accordance with established safety procedures.
•Training or instruction in the proper care and use of protective equipment in accordance
with established safety procedures.
•Training in first aid.
Spare parts
Only spare parts approved by the manufacturer may be used.

Introduction
1.6 Safety instructions
3WA Air Circuit Breaker Communication
8System Manual, 11/2021, 92310000004-02
1.6.2 Security information
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
In order to protect plants, systems, machines and networks against cyber threats, it is
necessary to implement – and continuously maintain – a holistic, state-of-the-art industrial
security concept. Siemens’ products and solutions constitute one element of such a concept.
Customers are responsible for preventing unauthorized access to their plants, systems,
machines and networks. Such systems, machines and components should only be connected
to an enterprise network or the Internet if and to the extent such a connection is necessary
and only when appropriate security measures (e.g. firewalls and/or network segmentation)
are in place.
For additional information on industrial security measures that may be implemented, please
visit (https://www.siemens.com/industrialsecurity).
Siemens’ products and solutions undergo continuous development to make them more
secure. Siemens strongly recommends that product updates are applied as soon as they are
available and that the latest product versions are used. Use of product versions that are no
longer supported, and failure to apply the latest updates may increase customer's exposure to
cyber threats.
To keep up to date with all the latest product updates, subscribe to the Siemens Industrial
Security RSS Feed at (https://www.siemens.com/industrialsecurity).
1.6.3 Open Source Software
This product, solution or service ("Product") contains third-party software components. These
components are Open Source Software licensed under a license approved by the Open
Source Initiative (https://www.opensource.org) or similar licenses as determined by SIEMENS
("OSS") and/or commercial or freeware software components. With respect to the OSS
components, the applicable OSS license conditions prevail over any other terms and
conditions covering the Product. The OSS portions of this Product are provided royalty-free
and can be used at no charge.
If SIEMENS has combined or linked certain components of the Product with/to OSS
components licensed under the GNU LGPL version 2 or later as per the definition of the
applicable license, and if use of the corresponding object file is not unrestricted ("LGPL
Licensed Module", whereas the LGPL Licensed Module and the components that the LGPL
Licensed Module is combined with or linked to is the "Combined Product"), the following
additional rights apply, if the relevant LGPL license criteria are met: (i) you are entitled to
modify the Combined Product for your own use, including but not limited to the right to
modify the Combined Product to relink modified versions of the LGPL Licensed Module, and
(ii) you may reverse-engineer the Combined Product, but only to debug your modifications.
The modification right does not include the right to distribute such modifications and you
shall maintain in confidence any information resulting from such reverse-engineering of a
Combined Product.

Introduction
1.6 Safety instructions
3WA Air Circuit Breaker Communication
System Manual, 11/2021, 92310000004-02 9
Certain OSS licenses require SIEMENS to make source code available, for example, the GNU
General Public License, the GNU Lesser General Public License and the Mozilla Public License.
If such licenses are applicable and this Product is not shipped with the required source code, a
copy of this source code can be obtained by anyone in receipt of this information during the
period required by the applicable OSS licenses by contacting the following address:
Siemens AG
Smart Infrastructure
Electrical Products
Technical Support
Postfach 10 09 53
93009 Regensburg
Germany
You will find Technical Support under (https://www.siemens.com/support-request).
Keyword: Open Source Request (please specify Product name and version, if applicable)
SIEMENS may charge a handling fee of up to 5 EUR to fulfil the request.
Warranty regarding further use of the Open Source Software
SIEMENS' warranty obligations are set forth in your agreement with SIEMENS. SIEMENS does
not provide any warranty or technical support for this Product or any OSS components
contained in it if they are modified or used in any manner not specified by SIEMENS. The
license conditions may contain disclaimers that apply between you and the respective
licensor. For the avoidance of doubt, SIEMENS does not make any warranty commitment on
behalf of or binding upon any third-party licensor. The Open Source Software used in the
product and the license agreements concerning this software can be found in the
Readme_OSS.
1.6.4 More information on Open Source software for 3WA circuit breakers
In addition to the sources listed in Chapter Open Source Software (Page 8), further
information about the used OSS licenses can be found on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/109782123).

Introduction
1.7 Standards
3WA Air Circuit Breaker Communication
10 System Manual, 11/2021, 92310000004-02
1.7 Standards
The 3WA1 air circuit breakers comply with the following standards:
•IEC 60947-2
•IEC 60947-2 Annex F / CISPR 11/22 Class B
•Climate-proof according to IEC 60068-2-30

3WA Air Circuit Breaker Communication
System Manual, 11/2021, 92310000004-02 11
System description
2
2.1 The 3WA air circuit breaker
The 3WA circuit breaker is the new generation of air circuit breakers in the Siemens AG
portfolio. It is based on the proven and robust design of its predecessor 3WL. The technical
data of the 3WA circuit breaker mechanics and the portfolio have been extended as
compared with 3WL, and the electronic components have been completely redeveloped.
The 3WA circuit breaker is part of the product family of SENTRON protection, switching,
measuring and monitoring devices and covers applications in the rated current range from
630 A to 6300 A.
You can find detailed information on the 3WA circuit breaker in the Equipment Manual; see
Chapter Reference documents (Page 5).
2.2 The CubicleBUS² bus system
The CubicleBUS² is a closed bus system and allows communication between the 3WA circuit
breaker with ETU600 electronic trip unit and internal and external modules located in the
circuit breaker panel.
The following data can be transmitted via the CubicleBUS²:
•Metering values
•Maintenance information
•Statuses
•Events and parameters of the circuit breaker
•Firmware update
You can find the technical specifications of the CubicleBUS² in the 3WA Equipment Manual
3WA; see Chapter Reference documents (Page 5).
CubicleBUS2nodes
The following CubicleBUS2devices are available for the 3WA circuit breaker.
•Internal status sensors
The Breaker Status Sensor BSS200 is used for status acquisition.
•Communication interfaces:
–Bluetooth and USB-C interface TUI600
–PROFINET IO/Modbus TCP module COM190, see Chapter COM190 communication
module (Page 13)
•IOM230 digital input/output module

System description
2.2 The CubicleBUS² bus system
3WA Air Circuit Breaker Communication
12 System Manual, 11/2021, 92310000004-02
You can find a detailed description of the components including the technical specifications
in the 3WA Equipment Manual; see Chapter Reference documents (Page 5).
Data exchange between CubicleBUS2nodes
Data is exchanged internally via CubicleBUS2and output at the local interface, I/O modules, or
fieldbus interfaces.
The CubicleBUS2is a serial bus and is looped through from one module to the next. The
CubicleBUS2must be terminated at the final module with a 120 Ω terminating resistor. Spur
lines are not permitted.
The first CubicleBUS2module is connected to secondary disconnect terminals X8-1 to X8-4 of
the circuit breaker.
(1)
CubicleBUS
2
modules on the circuit breaker
(2)
External CubicleBUS
2
modules
(3)
DIN rail
(4)
120 Ω terminating resistor of the CubicleBUS
2
(5)
CubicleBUS
2
(6)
3WA air circuit breaker
(7)
Guide frame of the 3WA air circuit breaker (optional)

System description
2.3 COM190 communication module
3WA Air Circuit Breaker Communication
System Manual, 11/2021, 92310000004-02 13
Requirements
Communication via the CubicleBus² requires the following hardware components:
•3WA air circuit breaker
•ETU600 electronic trip unit
•Terminating resistor (120 Ω)
•Optional CubicleBUS2module
Note
Compatibility with legacy product
The CubicleBUS² applied in the 3WA circuit breaker is an enhanced development of the
CubicleBUS system applied in the 3WL
circuit breaker. They are not compatible with each
other.
2.3 COM190 communication module
(1)
COM190 communication module
(2)
Terminating resistor "S"
(3)
Adapter for mounting on DIN rail
(4)
Adapter for mounting on circuit breaker
(5)
Coding pin extenders for mounting on circuit breaker
The COM190 is the communication module for the 3WA circuit breaker. It forms part of the
CubicleBUS2and provides a wide range of functions in conjunction with other CubicleBUS2
nodes, e.g.:
•Readout of circuit breaker data and metering values
•Readout of circuit breaker status
•Transfer of alarms and warnings
•Setting of parameters
•Closing and opening of circuit breaker via the communication interface

System description
2.3 COM190 communication module
3WA Air Circuit Breaker Communication
14 System Manual, 11/2021, 92310000004-02
•Readout of status and maintenance information
•Security functions
The COM190 is equipped with Ethernet interfaces for connecting to the PC or network.
Communication protocols and systems
The COM190 communication module supports the following communication protocols:
•PROFINET IO
•Modbus TCP
It is possible to use only one protocol or both protocols simultaneously and independently of
each other. Since no configuration is required, the 3WA circuit breaker can be used in
different systems simultaneously. An air circuit breaker can thus be used, for example,
simultaneously in energy management and automation.
Two COM190 modules performing different roles (role A and role B) can also be operated
simultaneously on the same circuit breaker. This allows the circuit breaker to provide new
redundancy solutions, as it can be used in parallel in two independent communication
systems.
Security
COM190 is a modern communication module and offers security functions to prevent
unauthorized access to the circuit breaker or unauthorized changes to data via
communication.

3WA Air Circuit Breaker Communication
System Manual, 11/2021, 92310000004-02 15
Status of the circuit breaker
3
3.1 Introduction
The 3WA air circuit breaker provides a wide range of information about the current status of
the circuit breaker and its internal accessories. Both the important status data and the
evaluation options in various applications are described below.
(1)
Display of the ETU600 electronic trip unit
(2)
Operator panel
(3)
Rotary switches of the ETU600 electronic trip unit
(4)
Withdrawable circuit breaker with guide frame
(5)
COM190 communication module
The most important statuses and information
•Information on the ETU600 electronic trip unit about tripping operations, warnings,
alarms, faults and maintenance information, can be called up on the ETU600 display (1)
•Status of the circuit breaker, e.g. ON, OFF and tripped, can be seen from the indicators
and buttons of the operator panel (2)
•Important metering values and limiting values, can be called up and set on the display or
the rotary switches of the ETU600 electronic trip unit (3)
•Position of withdrawable circuit breaker in the guide frame, see Item (4) above
•Status of the CubicleBUS² modules, can be called up via the COM190 communication
module (5)

Status of the circuit breaker
3.2 The ETU600 electronic trip unit as an information center
3WA Air Circuit Breaker Communication
16 System Manual, 11/2021, 92310000004-02
3.2 The ETU600 electronic trip unit as an information center
The ETU600 electronic trip unit of the 3WA air circuit breaker provides a wide range of
information:
•Tripping cause
•Status of the ETU
•Status of the mechanical system
•Status of position of withdrawable circuit breaker in the guide frame
•Information about the DAS+ maintenance mode
•Active warnings
•Active alarms
•ETU error messages (self-monitoring and diagnostics function of ETU600)
•Status of the main contacts of the circuit breaker
The information can be called up via registry entries.

Status of the circuit breaker
3.3 Indication of tripping cause
3WA Air Circuit Breaker Communication
System Manual, 11/2021, 92310000004-02 17
3.3 Indication of tripping cause
The cause of the last tripping operation of the circuit breaker is indicated in the register "Last
tripping cause".
Name
Register (0x0000 HEX)
Last tripping cause
0x4EBB
Description
Bit
Comment
No tripping 0 Cyclic monitoring of this bit provides in-
formation about circuit breaker tripping.
This bit is set until the current tripping
operation has been reset.
If a tripping operation has occurred, the
other bits indicate the current tripping
cause.
Test function
1
INST
2
ST
3
dST
4
LT
5
GF
6
RC
7
RP
8
Overvoltage
9
Undervoltage
10
Overfrequency
11
Underfrequency
12
Voltage unbalance
13
Current unbalance
14
Phase rotation
15
THD current
16
THD voltage
17
Power forward
18
Power reverse
19
ETU error
20
Information about the last tripping operation, e.g. tripping cause, tripping current, phase,
etc., can be read out of the trip log.
Note
The last tripping operation can be reset using the command "Reset last trip alarm", register
0x639C.

Status of the circuit breaker
3.4 Status of the ETU
3WA Air Circuit Breaker Communication
18 System Manual, 11/2021, 92310000004-02
Number of tripping operations
Separate registers exist to indicate the number of individual tripping types.
Number of all tripping operations
0x0093
Number of GF tripping operations
0x0095
Number of INST tripping operations
0x0097
Number of LT tripping operations
0x0099
Number of residual current tripping operations
0x009B
Number of reverse power protection tripping operations
0x009D
Number of S / dST tripping operations
0x009F
3.4 Status of the ETU
The status of the ETU600 electronic trip unit can be indicated and evaluated in the "ETU
status" register.
Name
Register (0x0000 HEX)
ETU status
0x61DA
Description
Bit
Comment
ETU defective
0
Determine the cause of the error using
register 0x61DE "ETU error messages".
Overload alarm 1 1 Indicated by orange "AL" LED on ETU600.
Overload alarm AL1 can be set between
40 and 100% Irin register 0x61EB "Alarm
threshold AL1".
Overload alarm 2
2
Indicated by red "AL" LED on ETU600.
Momentary current ≧ 100% Ir.
Can result in LT overload tripping.
GF alarm
3
GF current can be read out in the associ-
ated IGF current.
Pre-alarm 5 Generates an alarm before a protection
tripping operation occurs.
A pre-alarm is available for the LT and N
characteristic curves.
Check ETU settings
6
ETU error detected, please contact Ser-
vice.
ETU in error-free operating mode
8
Equivalent of ETU sign-of-life contact.
Test mode
9
Not currently used.
DAS+ active
11
For more information, see section DAS+
status (Page 22). Parameter set B func-
tions according to the same principle as
DAS+.
Parameter set B active 13
ETU not calibrated
15
ETU error detected, please contact Ser-
vice.