Replacing an inverter with data backup in the PC
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.
WARNING
Electric shock as a result of a residual charge in power components
After the power supply has been switched off, it takes up to 5 min. until the capacitors in
the inverter have discharged so that the residual charge is at a non-hazardous level.
● Check the voltage at the inverter connections before you carry out any installation work.
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. Open the project that matches the drive in STARTER.
8. Go online and transfer the settings from the PC into the inverter by pressing the
button.
The inverter signals faults after the download. Ignore these faults, as they will be
automatically acknowledged by the following steps.
9. In STARTER, select the screen form for the safety functions.
10.Select the "Change settings" button.
11.Select the "Activate settings" button.
12.Save your settings (copy RAM to ROM ).
You have successfully replaced the inverter.
Corrective maintenance
9.2 Replacing inverter components
SINAMICS G120C converter
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34263257B AF
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