Dc Link Components; Control Supply Module Csm; Description - Siemens SINAMICS S120 Combi Equipment Manual

DC link components

7.1

Control Supply Module CSM

7.1.1

Description

The Control Supply Module provides an output voltage of 24 V - 28.8 V DC. The output
voltage can be adjusted using an integrated potentiometer.
In normal operation, the Control Supply Module is supplied from the line voltage. In the event
of a power failure, the module automatically changes over to supply from the DC link. This
makes it possible, for example, to execute retraction movements in the event of a failure of
the line supply.
The Control Supply Module has safe electrical separation between the line potential and the
DC-link potential. This therefore ensures that the DC link is not unintentionally charged. The
Control Supply Module can therefore remain connected to the line supply if the S120 Combi
is electrically isolated from the line supply, for example via a line contactor.
The 24 V ground of the Control Supply Module is internally grounded.
The Control Supply Module is cooled using an internal fan.
Temperature and voltages are internally monitored.
Temperature monitoring:
In the event of an overtemperature in the Control Supply Module, a temperature advance
warning is issued via a signaling contact. If the temperature falls below the limit value within
the advance warning time, then the module remains operational and the signaling contact is
de-energized. If the overtemperature condition persists, the module is switched off and
restarted.
Voltage monitoring:
When the monitoring threshold (32 V) of the output voltage is exceeded for > 20 ms, the
control supply module switches off and attempts a restart after 10 s. This is supplemented by
a hardware-based overvoltage limiting. This prevents that more than 35 V can be output in
the case of a fault.
The Control Supply Module can either be operated individually or in a parallel connection
with a maximum of 10 devices. The switchover between single and parallel operation is
realized in a no-current state using a DIP switch on the upper side of the module.
Note
Compatibility
The new Control Supply Module 6SL3100-1DE22-0AA1 with extended functions described
here replaces Control Supply Module 6SL3100-1DE22-0AA0. The modules are spare-part-
compatible.
SINAMICS S120 Combi
Manual, (GH9), 07/2016, 6SL3097-4AV00-0BP5
7
161