Corrective Maintenance; Replacing Inverter Components; Overview Of How To Replace An Inverter - Siemens SINAMICS G120C Operating Instructions Manual

Corrective maintenance

8.1

Replacing inverter components

8.1.1

Overview of how to replace an inverter

Permissible replacement
You must replace the inverter if it continually malfunctions.
In the following cases you will need to replace the inverter:
Replacement:
Same power rating
•
Same firmware version
•
After you have carried out the replacement, you must restore the inverter's settings.
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
SINAMICS G120C converter
Operating Instructions, 07/2015, FW V4.7 SP3, A5E34263257B AC
Replacement:
Same power rating
•
Higher
firmware version
•
(e.g. replace FW V4.2 by
FW V4.3)
WARNING
after replacing an inverter.
Replacement:
Same frame size
•
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)
8
Replacement:
Same frame size
•
Higher
power rating
•
higher
firmware version
•
(e.g. replace FW V4.2 by
FW V4.3)
309