Servicing And Maintaining; Overview Of How To Replace An Inverter - Siemens SINAMICS G120 Operating Instructions Manual

Servicing and maintaining

9.1

Overview of how to replace an inverter

You must replace the inverter if it continually malfunctions. In the following cases, you may
immediately switch on the motor again after the replacement.
Replacing the inverter with external backup of the settings, e.g. on a memory card.
The inverter automatically loads the settings on the memory card.
If you have saved the settings of your inverter on another medium, e.g. on an operator panel or on a PC, then after the
replacement, the settings must be loaded into the inverter.
Replacement:
Same type
•
Same power rating
•
Same firmware version
•
In all other cases, you must recommission the drive.
SINAMICS G120C Inverter
Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB
Replacement:
Same type
•
Same power rating
•
higher
firmware version
•
(e.g. replace FW V4.2 by
FW V4.3)
WARNING
Replacement:
Same type
•
Higher
power rating
•
Same firmware version
•
Inverter and motor must be adapted to one another (ratio of
the motor and inverter rated power > 1/8)
9
Replacement:
Same type
•
Higher
power rating
•
higher
firmware version
•
(e.g. replace FW V4.2 by
FW V4.3)
247