Siemens SINAMICS S220

DC link components
9
9.1 Overview
Overview diagram
DC link components are installed in addition to the Line Modules and Motor Modules. They are
connected to other components via the DC link.
Figure9-1 DC link components
Table 9-1 DC link components
Component Function
Braking Module
Braking Module Compact
Speci󹪝cally stops drives in the event of power failure and limits the DC link
voltage
Capacitor Module Increases the DC link capacitance to bu󹪜er brief line supply failures.
Control Supply Module Generates a 24VDC output voltage for the other components in the drive
line-up.
The Control Supply Module requires its own dedicated AC supply when
starting.
SITOP PSU400M Generates a 24VDC output voltage for the other components in the drive
line-up from the DC link.
More information
Information on Braking Modules, Capacitor Modules and Control Supply Modules is provided in
Chapter "DC link components" on the internet:
SINAMICSS120 Booksize Power Units Equipment Manual (
https://
support.industry.siemens.com/cs/ww/en/view/109781351)
Booksize power units
Equipment Manual, 09/2023, A5E53307519B AA 247