Siemens SENTRON User manual

Equipment Manual
05/2020
L1V30408520AG
-03
Introduction
1
Description
2
Installation
3
Connection
4
Commissioning
5
Service and maintenance
6
Technical specifications
7
Appendix
A

Siemens AG
Smart Infrastructure
Electrical Products
Postfach 10 09 53
93009 Regensburg
GERMANY
Ⓟ
02/2021 Subject to change
Copyright © Siemens AG 2017.
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.

Equipment Manual, 05/2020, L1V30408520AG-03 3
Table of contents
1 Introduction........................................................................................................................................... 5
1.1 Scope of delivery ................................................................................................................. 5
1.2 Latest information ............................................................................................................... 5
1.3 Security information ............................................................................................................ 6
1.4 Open Source Software ......................................................................................................... 7
2 Description............................................................................................................................................. 9
2.1 Area of application............................................................................................................... 9
2.2 Performance features of the I(N), I(Diff), analog module ...................................................... 9
2.3 Design............................................................................................................................... 11
3 Installation........................................................................................................................................... 13
3.1 Installation location ........................................................................................................... 13
3.2 Installation steps................................................................................................................ 14
4 Connection .......................................................................................................................................... 15
4.1 Safety information............................................................................................................. 15
4.2 Connections ...................................................................................................................... 16
5 Commissioning .................................................................................................................................... 25
5.1 Overview........................................................................................................................... 25
5.2 Setting the expansion module parameters ......................................................................... 26
5.3 Parameterizing with powerconfig....................................................................................... 29
5.4 Reading out measured values............................................................................................. 30
6 Service and maintenance .................................................................................................................... 31
6.1 Calibration......................................................................................................................... 31
6.2 Firmware update ............................................................................................................... 31
6.3 Troubleshooting guide....................................................................................................... 31
6.4 Warranty ........................................................................................................................... 32
7 Technical specifications....................................................................................................................... 33
A Appendix ............................................................................................................................................. 37
A.1 Modbus measured quantities with function codes 0x03 and 0x04 ...................................... 37
A.2 Average value quantities.................................................................................................... 37
Index.................................................................................................................................................... 41

Table of contents
4Equipment Manual, 05/2020, L1V30408520AG-03

Equipment Manual, 05/2020, L1V30408520AG-03 5
Introduction
1
1.1 Scope of delivery
Included in package:
•1 x 7KM PAC expansion module I(N), I(Diff), analog
•1 x operating instructions
1.2 Latest information
Up-to-the-minute information
You can find further support on the Internet:
Website (https://support.industry.siemens.com/my/ww/en/requests)
General safety information
DANGER
Hazardous voltage
Will cause death or serious injury.
Turn off and lock out all power supplying this equipment before working on this device.
Note
Only qualified personnel are allowed to
install, commission or service this device.
•
Wear the prescribed protective clothing.
•
Observe the general equipment regulations and safety regulations for working on high-
voltage installations (e.g. DIN VDE, NFPA 70E) as well as national or international
regulations.
•
Check that all connections are correctly made before startup.
•
Before power is applied to the device for the first time, it must have been located in the
operating area for at least two hours in order to reach temperature balance and avoid
humidity and condensation.
•
The limits given in the technical data must not be exceeded even during commissioning or
testing.
•
Condensation on the device is not permissible during operation.

Introduction
1.3 Security information
6Equipment Manual, 05/2020, L1V30408520AG-03
Note
These operating instructions do not purport to cover all details or variations in equipment, or
to provide for every possible contingency in connection with installation, operation, or
maintenance. Should additional i
nformation be desired, or should particular problems arise
that are not handled in detail in the operating instructions, please contact Technical Support
for the information you require.
See also
Technical assistance (https://support.industry.siemens.com/My/ww/en/requests)
Industrial security (http://www.siemens.com/industrialsecurity)
Siemens Industrial Security RSS Feed (http://www.siemens.com/industrialsecurity)
www.opensource.org (https://opensource.org/)
1.3 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).

Introduction
1.4 Open Source Software
Equipment Manual, 05/2020, L1V30408520AG-03 7
1.4 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.
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.

Equipment Manual, 05/2020, L1V30408520AG-03 9
Description
2
2.1 Area of application
The expansion module has been designed for use in combination with the 7KM PAC devices.
The guidelines for the 7KM PAC devices also apply to the expansion module.
When used in conjunction with 7KN POWERCENTER, powermanager and Cloud MindSphere,
expansion module I(N), I(Diff), analog makes it possible to monitor measured quantities, such
as
•Real neutral current
•Residual current and
•Analog measured values, e.g. temperature.
Although these measured quantities are generally not monitored during normal operation,
they can provide important information in the event of deviations or changes in a system if
they are evaluated appropriately.
Temporary changes can be converted into event messages by the limit monitoring system.
Persistent changes can be recorded in the form of a trend based on the aggregated values
and stored.
It is possible to record and forward event messages very easily using 7KN POWERCENTER,
powermanager and MindSphere, e.g. in the form of an email or long-term storage of trend
data.
2.2 Performance features of the I(N), I(Diff), analog module
Overview:
•Plug-in expansion module for SENTRON PAC measuring devices with expansion module
functionality, e.g. 7KM PAC3200 / PAC3220 / PAC4200
•Measurement of N-conductor (neutral) current via external current transformer. Direct
measurement via external current transformers is significantly more accurate than
calculated current values.
•Measurement of two residual and PE currents via external summation current transformer
•Measurement of physical quantities of any kind, such as
–Temperature
–Humidity
–Pressure
–Flow measurement is possible using an external 0/4 ... 20 mA transmitter.
•Display of measured values directly on the display of the PAC measuring device
When used in conjunction with the 7KM PAC3220 or 7KM PAC4200 measuring device,

Description
2.2 Performance features of the I(N), I(Diff), analog module
10 Equipment Manual, 05/2020, L1V30408520AG-03
limit values can be configured on the inputs of the expansion module I(N), I(Diff), analog.
In the event of a limit violation, a digital output of the PAC device can be switched in order
to output a status message.
•Status indication via LED
•When used in conjunction with a SENTRON 7KM PAC3220 or PAC4200 measuring device,
the averaging of all measured values is possible in two stages, which are independent of
each other and freely configurable (aggregation).
The associated Modbus table can be found in the Appendix (Page 37).
The expansion module I(N), I(Diff), analog increases the scope of measuring functions of the
SENTRON 7KM measuring devices.
*)
N-conductor current measurement
**)
Residual current measurement
- I > 0 mA, fault. ***) Residual current flowing across the grounded housing of the system.
- I = 0 A, no fault. The system is in order; no residual current is flowing.
****)
Measurement of physical quantities
Figure 2-1 Examples of possible applications

Description
2.3 Design
Equipment Manual, 05/2020, L1V30408520AG-03 11
2.3 Design
(1)
Screw terminals for connection of current transformer or sensor
(2)
Screw for mounting the expansion module I(N), I(Diff), analog
(3)
Ventilation slot
(4)
Diagnostic LED
Figure 2-2 Schematic representation of expansion module I(N), I(Diff), analog
INconnection:
Current transformer connection for N-conductor current measurement 1 A / 5 A input
I5connection:
•0 ... 20 mA analog input
•4 ... 20 mA analog input
•0 ... 60 mA RCM (Residual Current Monitoring)
I6connection:
•0 ... 20 mA analog input
•4 ... 20 mA analog input
•0 ... 60 mA PE current RCM (Residual Current Monitoring)
Diagnostic LED:
The LED displays the module status:
•Green: OK
•Red: Not OK

Description
2.3 Design
12 Equipment Manual, 05/2020, L1V30408520AG-03

Equipment Manual, 05/2020, L1V30408520AG-03 13
Installation
3
3.1 Installation location
WARNING
Hazardous voltage
Using devices when they are damaged may result in death, serious injury, or property
damage.
The expansion module is inserted in the appropriate slot labeled "MOD1" or "MOD2" on the
rear panel of the SENTRON 7KM PAC measuring device.
Note
Only one expansion module of the type I(N), I(Diff), analog may be connected to the PAC
measuring device.
NOTICE
Condensation may cause the device to malfunction.
The device must be in the operating environment for at least two hours before use to
prevent condensation due to sudden temperature changes.

Installation
3.2 Installation steps
14 Equipment Manual, 05/2020, L1V30408520AG-03
3.2 Installation steps
Install the expansion module before staring up the SENTRON device.
NOTICE
Damaged components must not be operated.
CAUTION
Electrostatic discharge
The expansion modules contain electronic components that can be irreparably damaged by
electrostatic discharge.
When handling modules, make sure that all objects in the handling environment (persons,
workstation and packaging) are properly grounded. Do not touch the module contacts.
NOTICE
Overheating of the device
The expansion module can overheat if the ventilation slots are covered.
Overheating shortens the service life of the expansion module.
Ensure that the ventilation slots are not covered.
Figure 3-1 Installation of the expansion module I(N), I(Diff), analog

Equipment Manual, 05/2020, L1V30408520AG-03 15
Connection
4
4.1 Safety information
DANGER
Hazardous voltage.
Failure to observe this notice will cause death, serious injury or property damage.
Turn off and lock out all power supplying this equipment before working on this device.
WARNING
Some of the following tasks are carried out when hazardous voltage is present. For this
reason, they must only be carried out by qualified personnel who are familiar with and
follow the safety regulations and precautions.
Wear the prescribed protective clothing. Observe the general equipment regulations and
safety regulations for working on high-voltage installations (e.g. DIN VDE, NFPA 70E as well
as national or international regulations).
The limits given in the technical data must not be exceeded even during commissioning or
testing.
The secondary connections of intermediate current transformers must be short-circuited at
the transformers before the power supply lines to the device are interrupted.
The polarity and phase assignment of the instrument transformers must be tested. Before
connecting the device, you must check whether the system voltage matches the voltage
specified on the type plate.
Check that all connections are correctly made before startup.
Before power is applied to the device for the first time, it must have been located in the
operating area for at least two hours in order to reach temperature balance and avoid
humidity and condensation.
Condensation on the device is not permissible during operation.

Connection
4.2 Connections
16 Equipment Manual, 05/2020, L1V30408520AG-03
4.2 Connections
Terminal labeling
Figure 4-1 Terminal labeling with screw terminals
Number
Terminal
Function
(1)
INk↑
Current transformer input for N-conductor measurement
(2)
INl↓
Current transformer input for N-conductor measurement
(3)
I5S1↑
Summation current transformer input; analog input I5
(4)
I5S2↓
Summation current transformer input; analog input I5
(5)
I6S1↑
Summation current transformer; analog input I6
(6)
I6S2↓
Current transformer input; analog input I6
(7)
Interface to PAC device
Connection examples
Several example connections for the expansion module I(N), I(Diff), analog can be found
below.

Connection
4.2 Connections
Equipment Manual, 05/2020, L1V30408520AG-03 17
The device can be connected for current measurement and/or use of the analog inputs I5/ I6
or a combination of both. The module must be individually configured to meet the
requirements of the application.
Current measurement using current transformers
Figure 4-2 Possible connection type with three current transformers
Use of the external current transformer makes it possible to measure higher residual currents
in the system.
Example:
5SV870 is a 500/1 A current transformer. This results in a minimum measurable residual
current in the system of 0.05 mA *500/1 = 25 mA and a maximum measurable residual
current in the system of 500/1*60 mA = 30 A (type AC sine with peak factor 1.41 alpha = 0°)
or 3 A (type A sine with peak factor 4.69 alpha = 135°) as per the definition in IEC / TR 60755.

Connection
4.2 Connections
18 Equipment Manual, 05/2020, L1V30408520AG-03
Figure 4-3 Possible connection type with three current transformers
Use of the external current transformer makes it possible to measure higher system currents.
Example:
Using a 50/5 A current transformer results in a maximum measurable I(N) current in the
system of 50/5*5 A = 50 A (sine with peak factor 1.41).