9.2.4
Replacing a converter without data backup
If the settings have not been backed up, after replacing the inverter, you must recommission
the drive.
Procedure
To replace the inverter, proceed as follows:
1. Disconnect the line voltage to the inverter and (if installed) the external 24 V supply or the
voltage for the digital outputs of the inverter.
2. Remove the connecting cables of the inverter.
3. Remove the defective inverter.
4. Install the new inverter.
5. Connect all of the cables to the inverter.
6. Reconnect the line voltage, and (if being used) the external 24 V supply or the voltage for
the digital outputs of the inverter.
7. Recommission the drive.
Inverter commissioning has been completed after it has been commissioned.
9.2.5
Replacing devices with active know-how protection
Replacing devices with know-how protection without copy protection
In the case of know-how protection without copy protection, the inverter settings can be
transferred to another inverter using a memory card.
Saving setting on memory card (Page 323)
Transferring the setting from the memory card (Page 327)
Replacing devices with know-how protection with copy protection
The know-how protection with copy protection hides the inverter settings and also prevents
the duplication of the inverter settings.
If the inverter settings can neither be copied nor forwarded, a recommissioning is required
after inverter replacement.
To avoid the recommissioning, you must use a Siemens memory card, and the machine
manufacturer must have an identical prototype machine that it uses as sample.
There are two options for replacing the device:
Corrective maintenance
9.2 Replacing inverter components
SINAMICS G120C converter
380
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34263257B AF
