Siemens SINAMICS G120 Operating Instructions Manual page 420

Corrective maintenance
9.2 Replacing inverter components
You have successfully replaced the Control Unit.
Replacing a Control Unit with data backup in the PC
Precondition
You have backed up the actual settings of the Control Unit to be replaced to a PC using
STARTER.
Procedure
To replace the Control Unit, proceed as follows:
1. Disconnect the line voltage to the Power Module and (if installed) the external 24 V supply
or the voltage for the digital outputs of the Control Unit.
2. Remove the signal cables of the Control Unit.
3. Remove the defective Control Unit.
4. Mount the new Control Unit on the Power Module.
5. Reconnect the signal cables of the Control Unit.
6. Connect up the line voltage again.
7. Open the right project for the drive in STARTER.
8. Go online and transfer the settings from the PC to the inverter by pressing the
The inverter signals faults after the download.
9. Save your settings (copy RAM to ROM).
You have successfully replaced the Control Unit.
Replacing the Control Unit with data backup in the operator Panel
Precondition
You have backed up the actual settings of the Control Unit to be replaced to an operator panel.
Procedure
To replace the Control Unit, proceed as follows:
1. Disconnect the line voltage to the Power Module and (if installed) the external 24 V supply
or the voltage for the digital outputs of the Control Unit.
2. Remove the signal cables of the Control Unit.
3. Remove the defective Control Unit.
4. Mount the new Control Unit on the Power Module.
5. Reconnect the signal cables of the Control Unit.
6. Connect up the line voltage again.
7. Plug the Operator Panel into the Control Unit or connect the Operator Panel handheld
device with the inverter.
420
Ignore these faults, as they will be automatically acknowledged by the following steps.
Converter with the CU230P-2 Control Units
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE
button.