7.3.1 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 Replacing the Control Unit
Replacement:
● Same type
● Same power rating
Replacement:
● Same type
● Same frame size
●
Higher
power rating
Replacement:
● Same type
● Same firmware version
Replacement:
● Same type
●
higher
firmware version
(e.g. replace FW V4.2 by
FW V4.3)
Power Module and motor
must be adapted to one an‐
other (ratio of motor and Pow‐
er Module rated power > 1/4)
After replacing the Control Unit, you must restore the inver‐
ter's settings.
WARNING
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
after replacing an inverter.
Special issue relating to communication via PROFINET: Device replacement without removable data
storage medium
The inverter supports the PROFINET functionality, replacing the device without data storage
medium. After replacing the Control Unit, the inverter is automatically assigned its device name
from the IO controller.
Independent of this, after replacing the inverter, you must transfer the settings of the old inverter
to the new inverter.
Details of the device replacement without removable storage medium can be found in the
Internet:
Corrective maintenance
7.3 Replacing components of the SINAMICS G120 or G120D inverters
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
334 Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
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