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

Corrective maintenance

8.1

Replacing inverter components

8.1.1

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.
In the following cases you will need to replace the inverter:
Replacing the Power Module
Replacement:
Same type
•
Same power rating
•
Risk of injury due to uncontrolled drive motion
Replacing inverters of different types can result in uncontrolled motion of the drive.
• In all cases that are not permitted according to the table above, recommission the drive
Converter with the CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
Replacement:
Same type
•
Same frame size
•
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 invert-
er's settings.
8
Replacement:
Same type
•
higher
firmware version
•
(e.g. replace FW V4.2 by
FW V4.3)
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