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DC link components
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
Table 9-1
Component
Braking Module
Braking Module Compact
Capacitor Module
Control Supply Module
SITOP PSU400M
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
support.industry.siemens.com/cs/ww/en/view/109781351)
Booksize power units
Equipment Manual, 09/2023, A5E53307519B AA
DC link components
DC link components
Function
Specifically stops drives in the event of power failure and limits the DC link
voltage
Increases the DC link capacitance to buffer brief line supply failures.
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.
Generates a 24 V DC output voltage for the other components in the drive
line-up from the DC link.
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