Power Supply - Siemens SIMATIC S7-1500 System Manual

System overview

3.6 Power supply

3.6 Power supply
SIMATIC Drive Controller supply
For the SIMATIC Drive Controller, use an external 24 V power supply, for example from the
SITOP range (https://mall.industry.siemens.com/mall/en/WW/Catalog/Products/10008864)
(SITOP smart or SITOP modular).
Supply of the SINAMICS S120 drive modules
The SINAMICS S120 drive components are supplied over a SINAMICS Line Module. Line
Modules generate direct voltage from the line voltage and supply energy to the Motor
Modules through the DC link.
Optionally, Line Modules with controlled supply/regeneration ensure a constant DC-link
voltage and high grid compatibility.
Motor Modules supply the motors with power from the DC link.
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SIMATIC Drive Controller
System Manual, 11/2019, A5E46600094-AA