Replacing The Power Module - Siemens SINAMICS G120 Function Manual

5.3

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 127)).
Acceptance test
● Acknowledge the fault code issued by the inverter.
● Perform a reduced acceptance test. The necessary measures are described in Chapter
Safety Integrated Function Manual, SINAMICS G120
Function Manual, 07/2010, FW 4.3.2, A5E03052391B AA
Reduced acceptance test (Page 117).
Servicing and maintenance
5.3 Replacing the Power Module
131