Which SIMATIC and SITOP modules can you use with S7-1500 as load power supply module (PM)?
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
- 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|
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).
- 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.
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.
More detailed information on the topic of power supply modules for the S7-1500 is available in Entry ID: 73191930.