Corrective Maintenance; Overview Of Replacing Converter Components - Siemens SINAMICS G120 Operating Instructions Manual

Corrective maintenance

10.1

Overview of replacing converter components

Permissible replacement of components
In the event of a long-term function fault, you must replace the Power Module or Control
Unit. The inverter's Power Module and Control Unit can be replaced independently of each
other.
Replacing the Power Module
Replacement:
Same type
•
Same power rating
•
Physical injury or material damage as a result of unexpected drive behavior
Replacing inverters of different types can result in an unpredictable drive response.
• In all cases that are not permitted according to the table above, recommission the drive
Converter with the CU250S-2 Control Unit (vector)
Operating Instructions, 06/2013, FW V4.6, A5E31759476B AB
Replacement:
Same type
•
Higher
power rating
•
Power Module and motor must be
adapted to one another (ratio of
motor and Power Module rated
power > 1/8)
WARNING
after replacing an inverter.
Replacing the Control Unit
Replacement:
Same type
•
Same firmware version
•
After replacing the Control Unit, you must restore the
inverter's settings.
10
Replacement:
Same type
•
higher
firmware version
•
(e.g. replace FW V4.2 by
FW V4.3)
343