×
Siemens Industry Online Support
Siemens AG
Entry type: FAQ Entry ID: 96998532, Entry date: 07/07/2014
(2)
Rate

Which SIMATIC and SITOP modules can you use with S7-1500 as load power supply module (PM)?

  • Entry
  • Associated product(s)

Description
The SIMATIC S7-1500 load power supply modules (PM) supply the input and output circuits of the modules and can also supply the CPU, IM, CM, ... with 24V DC. Unlike the S7-1500 system power supply modules (PS), they do not have a connection to the backplane bus. You can also use SITOP smart power supply modules as an alternative to the SIMATIC load power supply modules. Using a SITOP smart power supply module is recommended in the following cases among others:

  • High power requirements
  • Redundancy
  • Uninterruptible power supply

The table below gives you an overview of the SIMATIC and SITOP load power supply modules that you can use as required.
 

Power supply Power* Article no. Input Output
SIMATIC PM 1507 24 V/3 A 72 W 6EP1332-4BA00 AC 120/230 V DC 24 V/3 A
SIMATIC PM 1507 24 V/8 A 192 W 6EP1333-4BA00 AC 120/230 V DC 24 V/8 A
SITOP PSU100S 10A 288 W 6EP1334-2BA20 AC 120/230 V DC 24 V/10 A
SITOP PSU100S 20A 480 W 6EP1336-2BA10 AC 120/230 V DC 24 V/20 A
SITOP PSU300S 10A 240 W 6EP1434-2BA10 3 AC 400-500 V DC 24 V/10 A
SITOP PSU300S 20A 480 W 6EP1436-2BA10 3 AC 400-500 V DC 24 V/20 A
SITOP PSU300S 40A 960 W 6EP1437-2BA20 3 AC 400-500 V DC 24 V/40 A
*active power output

Sample power supply modes for S7-1500

  • Supply via CPU without system power supply
    The CPU is supplied with DC 24V from a load power supply module. The separate components like CPU, IM, load circuits of the SM, … are connected to the power supply module via the front-entry wiring. The CPU supplies the system via the backplane bus and the maximum number of modules depends on the power consumption of the modules (max. 10 modules).


Fig. 01

  • Supply via CPU and system power supply
    The CPU is supplied with DC 24V from a load power supply module. The system is divided into multiple power segments. The CPU supplies Power Segment 1 via the backplane bus up to the maximum output (max. 10 modules). The other maximum of 2 power segments are also supplied via a system power supply module.
    Fig. 02 shows the solution with SITOP smart as the load power supply module.


Fig. 02

Note
A SITOP smart power supply module is only an alternative to the SIMATIC S7-1500 load power supply module (PM) and cannot be used as power supply (PS) with the S7-1500.

Further Information
More detailed information on the topic of power supply modules for the S7-1500 is available in Entry ID: 73191930.


Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit
https://www.siemens.com/cybersecurity#Ouraspiration.