Siemens SENTRON 7KT PAC1600 Series Technical Document

SENTRON
Measuring devices
7KT16 energy meter
Equipment Manual
09/2020
2514284147
-04
Introduction
1
Safety instructions
2
Description
3
Installation/removal
4
Connection
5
Commissioning
6
Service and maintenance
7
Technical data
8
Dimensional drawings
9
ESD guidelines
A

Siemens AG
Smart Infrastructure
Electrical Products
Postfach 10 09 53
93009 Regensburg
GERMANY
Ⓟ
09/2020 Subject to change
Copyright © Siemens AG 2018.
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.

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Equipment Manual, 09/2020, 2514284147-04 3
Table of contents
1 Introduction........................................................................................................................................... 7
1.1 Components of the product ................................................................................................. 7
1.2 Latest information ............................................................................................................... 7
1.3 Advanced training courses ................................................................................................... 7
1.4 Open Source Software ......................................................................................................... 8
1.5 Qualified personnel ............................................................................................................. 9
2 Safety instructions............................................................................................................................... 11
3 Description........................................................................................................................................... 15
3.1 Performance features......................................................................................................... 15
3.2 Measuring inputs............................................................................................................... 17
3.2.1 Current measurement........................................................................................................ 17
3.2.2 Voltage measurement........................................................................................................ 18
3.3 Single-phase devices.......................................................................................................... 18
3.3.1 Keypad functions............................................................................................................... 19
3.3.2 Advanced functions ........................................................................................................... 20
3.3.3 Selection of measured values............................................................................................. 21
3.3.4 Parameterization ............................................................................................................... 21
3.3.4.1 Devices with RS 485 interface ............................................................................................ 22
3.3.4.2 Devices with M-Bus interface ............................................................................................. 22
3.3.4.3 Devices with S0 interface or digital output ......................................................................... 23
3.3.4.4 Setup parameter table ....................................................................................................... 24
3.4 Three-phase devices 80 A .................................................................................................. 28
3.4.1 Keypad functions............................................................................................................... 29
3.4.2 Advanced functions ........................................................................................................... 30
3.4.3 Selection of measured values............................................................................................. 31
3.4.4 Parameterization ............................................................................................................... 33
3.4.4.1 Devices with RS 485 interface ............................................................................................ 33
3.4.4.2 Devices with M-Bus interface ............................................................................................. 33
3.4.4.3 Setup parameter table for devices with RS 485 and M-Bus interface.................................... 33
3.4.4.4 Devices with S0 interface or digital output ......................................................................... 37
3.4.4.5 Setup parameter table for devices with S0 interface ........................................................... 38
3.4.4.6 Programmable AC input..................................................................................................... 40
3.4.4.7 Settable values for parameters P2.01, P3.01, P4.01 ............................................................ 40
3.5 Three-phase devices 5 A .................................................................................................... 42
3.5.1 Keypad functions............................................................................................................... 43
3.5.2 Advanced functions ........................................................................................................... 45
3.5.3 Selection of measured values............................................................................................. 46
3.5.4 Parameterization ............................................................................................................... 48
3.5.4.1 Set parameters (setup)....................................................................................................... 48
3.5.4.2 Energy measurement......................................................................................................... 50

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4Equipment Manual, 09/2020, 2514284147-04
3.5.4.3 Tariffs................................................................................................................................ 51
3.5.4.4 Hour counter ..................................................................................................................... 52
3.5.4.5 Limit threshold status display (LIMx) .................................................................................. 52
3.5.4.6 Alarm display..................................................................................................................... 53
3.5.4.7 Parameter table ................................................................................................................. 54
3.5.4.8 Command menu................................................................................................................ 64
3.5.5 Wiring test......................................................................................................................... 65
3.6 Supporting software .......................................................................................................... 66
3.6.1 powermanager.................................................................................................................. 66
3.6.2 powerconfig ...................................................................................................................... 67
4 Installation/removal ............................................................................................................................ 69
4.1 Installation location ........................................................................................................... 69
4.2 Installing/removing single-phase device ............................................................................. 70
4.3 Installing three-phase device.............................................................................................. 70
4.4 Installing/removing three-phase device .............................................................................. 70
5 Connection .......................................................................................................................................... 71
5.1 Connection example for Modbus RTU................................................................................. 73
5.2 Connecting single-phase device ......................................................................................... 74
5.3 Connecting three-phase device .......................................................................................... 75
5.4 Wiring test......................................................................................................................... 77
6 Commissioning .................................................................................................................................... 79
6.1 Overview........................................................................................................................... 79
6.2 Applying the measuring voltage......................................................................................... 80
6.3 Parameterizing with powerconfig....................................................................................... 80
6.4 Modbus address register .................................................................................................... 82
6.4.1 Modbus address table for single-phase devices with Modbus interface ............................... 82
6.4.2 Modbus address table for three-phase devices 5 A with Modbus interface .......................... 84
6.4.3 Modbus address table for three-phase devices 80 A with Modbus interface ........................ 91
7 Service and maintenance .................................................................................................................... 97
7.1 Firmware update ............................................................................................................... 97
7.2 Lost or forgotten password ................................................................................................ 97
7.3 Fault elimination measures................................................................................................ 97
7.4 Warranty ........................................................................................................................... 98
7.5 Disposal............................................................................................................................. 98
8 Technical data ..................................................................................................................................... 99
8.1 Technical data ................................................................................................................... 99
8.2 Labels on the enclosure ................................................................................................... 103

Table of contents
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9 Dimensional drawings ....................................................................................................................... 105
9.1 Single-phase device ......................................................................................................... 105
9.2 Three-phase device.......................................................................................................... 105
A ESD guidelines ................................................................................................................................... 107
A.1 Electrostatic sensitive devices (ESD) ................................................................................. 107
Index.................................................................................................................................................. 109

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Introduction
1
1.1 Components of the product
The package includes:
•Operating instructions
•7KT PAC1600 energy counter
Available accessories
•powerconfig (https://support.industry.siemens.com/cs/ww/en/view/63452759)software
•powermanager
(https://support.industry.siemens.com/cs/ww/en/view/109746290)software
1.2 Latest information
Up-to-the-minute information
You can find further support on the Internet (http://www.siemens.com/lowvoltage/technical-
assistance) at:
1.3 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
1.4 Open Source Software
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8Equipment Manual, 09/2020, 2514284147-04
1.4 Open Source Software
STM32L1xx_StdPeriph_Driver V1.2.0:
Redistribution and use in source and binary forms, with or without modification, are
permitted, provided that the following conditions are met:
1. Redistribution of source code must retain the above copyright notice, this list of conditions
and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of
conditions and the following disclaimer in the documentation and/or other materials
provided with the distribution.
3. Neither the name of STMicroelectronics nor the names of other contributors to this software
may be used to endorse or promote products derived from this software without specific
written permission.
4. This software, including modifications and/or derivative works of this software, must
execute solely and exclusively on microcontroller or microprocessor devices manufactured
by or for STMicroelectronics.
5. Redistribution and use of this software other than as permitted under this license is void and
will automatically terminate your rights under this license.
THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS ARE
DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT SHALL
STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Copyright notices:
COPYRIGHT (c) 2015 STMicroelectronics International N.V. All rights reserved.

Introduction
1.5 Qualified personnel
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1.5 Qualified personnel
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 the safety
regulations and precautions and who follow the safety regulations and precautions.
•Wear the prescribed protective clothing.
•Observe the general equipment regulations and safety regulations for working with high-
voltage installations (e.g. DIN VDE, NFPA 70E), as well as national or international
regulations.
•Ensure that the limits given in the technical data are not exceeded, not even during
commissioning or testing.
•Short circuit the secondary connections of intermediate current transformers at the
transformers before interrupting the current lines to the device.
•Test the polarity and the phase assignment of the instrument transformers.
•Before connecting the device, ensure that the system voltage matches the voltage
specified on the type plate.
•Before commissioning, ensure that all connections have been made correctly.
•Before power is applied to the device for the first time, you must place it in the operating
room for a period of at least two hours. This allows it to reach temperature balance and
avoids humidity and condensation.

Introduction
1.5 Qualified personnel
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10 Equipment Manual, 09/2020, 2514284147-04

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Safety instructions
2
DANGER
Risk of death due to electric shock and arc flashover!
For the 5 A device, it is only possible to measure the current via external current
transformers. When using the current transformers, the circuit is not protected by a fuse.
•Switch off and lock out all power supplying this equipment before working on the
device.
•Never open the secondary circuit of the current transformers under load.
•Short-circuit the secondary current terminals of the current transformer before removing
this device.
•
Always follow the safety instructions for the current transformers used.
DANGER
Risk of death due to hazardous voltage!
Before starting work, disconnect the system and the device from the power supply.
WARNING
Possible risk of death due to damaged device!
Using devices when they are damaged may result in death, serious injury, or property
damage.
•Do not install damaged devices.
•
Do not start up damaged devices.
NOTICE
Equipment damage due to lack of fusing
Non-fused voltage measuring inputs may lead to device and equipment damage.
Always protect the device with an IEC approved fuse or with an IEC approved miniature
circuit breaker.

Safety instructions
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12 Equipment Manual, 09/2020, 2514284147-04
NOTICE
Device damage due to condensation
Humidity may cause condensation on the device if temperature balance has not been
reached. Condensation may damage the device when it is connected to the power supply.
Do not connect the device to the power supply until temperature balance has been reached.
To achieve temperature balance, place the device in the operating room for a period of at
least two hours.
Note
RS 485 termination recommended
In order to avoid reflection on the bus cable, we recommend fitting a 120
Ω terminating
resistor at the beginning and end of the bus cable.
To establish Modbus
RTU communication, the communication parameters must be known.
These include baud rate and format. Furthermore, you must have entered the slave address
in the device.
Safety-related symbols on the device
Symbol
Meaning
Risk of electric shock
Electrical installation demands technical competence
Notes
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 Internet (http://www.siemens.com/industrialsecurity).

Safety instructions
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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 stay informed about product updates, subscribe to the Siemens Industrial Security RSS
Feed (http://support.automation.siemens.com).
Note
Risk of manipulation!
In order to reduce the risk of manipulation occurring on the device, it is recommended that
the protective
mechanisms available in the device are activated.
Default passwords for the protective mechanisms:
•
Use 1000 for user rights without write access.
•
Use 2000 for extended rights with write access.
Use a lead seal on the cover for security.

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Description
3
3.1 Performance features
The PAC1600 is a measuring device for measuring the basic electrical variables in low-voltage
power distribution. Measured variables are shown on the display of the PAC1600.
The PAC1600 is mounted on a DIN rail or is screwed in place using extractable clips.
Versions
The PAC1600 measuring device is available in several versions:
•5 A devices:
x / 5 A current transformers can be used for current measuring.
•63 A and 80 A devices:
No current transformers are required for current measuring. Connect the device directly to
the low-voltage grid. The device can measure current of up to 63 A or 80 A directly.
Depending on the device version, the PAC1600 measuring device has an S0, RS 485 or M-Bus
interface.
Single-phase devices
Description
7KT1651
63 A, Modbus RTU
7KT1652
63 A, Modbus RTU, MID
7KT1653
63 A, M-Bus
7KT1654
63 A, M-Bus MID
7KT1655
63 A, S0
7KT1656
63 A, S0, MID

Description
3.1 Performance features
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Three-phase devices
Description
7KT1661
5 A, Modbus RTU
7KT1662
5 A, Modbus RTU, MID
7KT1663
5 A, M-Bus
7KT1664
5 A, M-Bus, MID
7KT1672
5 A, S0
7KT1673
5 A, S0, MID
7KT1665
80 A, Modbus RTU
7KT1666
80 A, Modbus RTU, MID
7KT1667
80 A, M-Bus
7KT1668
80 A, M-Bus, MID
7KT1670
80 A, S0
7KT1671
80 A, S0, MID
Measurement
Measurement of all relevant electrical variables in an AC system.
Interfaces
Optional interfaces depending on device version:
•S0
•RS 485
•M-Bus
•Digital input
•Digital output
Memory
Adjusted device parameters are permanently stored in the device memory.

Description
3.2 Measuring inputs
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MID-approved
MID-approved devices are included in the portfolio. These devices are suitable for billing
purposes. Certain actions cannot be performed on devices with an MID mark, e.g. firmware
update, reset of energy values.
3.2 Measuring inputs
3.2.1 Current measurement
NOTICE
Device damage due to DC current
The device is not suitable for measuring DC current.
Only measure AC current with the device.
Design of the 5 A device
The 5 A device is designed for a rated current of 5 A for connecting standard current
transformers.
Each current measuring input can take a continuous load of 6 A.
Design of 63 A and 80 A devices
The 63 A and 80 A devices are designed to be connected directly to the low-voltage grid.

Description
3.3 Single-phase devices
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3.2.2 Voltage measurement
NOTICE
Device damage due to DC voltage
The device is not suitable for measuring DC voltage.
Only measure AC voltage with the device.
Design of the PAC1600 device
PAC1600 is designed for
•Direct measurement on the grid
•Measuring input voltages up to 264 V phase-to-neutral
•Measuring input voltages up to 456 V phase-to-phase
3.3 Single-phase devices
①
Sealing cover
②Energy flow indicator
•If the device detects an active energy flow to the load, a rotating "U" appears on the top
right of the display.
•If no active energy consumption is present, or if the load is drawing less than the starting
current, the rotating "U" disappears.
③Active energy pulse indicator
The red LED on the front panel outputs 1000 pulses for every kWh of energy consumed. The
LED pulse frequency is proportional to the energy.
④Front key
You will find information on operation in chapter Keypad functions (Page 19).