Replacing The Power Module - Siemens SINAMICS G120 CU240B-2 Operating Instructions Manual

8.3

Replacing the Power Module

Procedure for replacing a Power Module
● Disconnect the Power Module from the line.
● If present, switch off the 24 V supply of the Control Unit.
● After switching off the line voltage, wait 5 minutes until the device has discharged itself.
● Remove the line supply cables of the Power Module.
● Remove the Control Unit from the Power Module.
● Replace the old Power Module with the new Power Module.
● Snap the Control Unit onto the new Power Module.
● Correctly connect the line supply cables to the new Power Module.
● Connect the line supply and, if present, the 24 V supply for the Control Unit.
● If necessary, recommission. (See Replacing the inverter components (Page 237)).
Acceptance test of the safety functions
If you have activated the safety functions in the inverter, after replacing the Power Module,
the following steps are required:
● Acknowledge the fault code issued by the inverter.
● Perform a reduced acceptance test. The necessary measures are described in the
Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
Chapter Reduced acceptance test (Page 225).
Service and maintenance
8.3 Replacing the Power Module
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