Siemens SINAMICS G120 Operating Instructions Manual page 334

Corrective maintenance
8.1 Replacing inverter components
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.
8. Transfer the settings from the Operator Panel to the inverter.
9. Wait until the transfer is complete.
10.After loading, check whether the inverter outputs alarm A01028.
– Alarm A01028:
– No alarm A01028: Proceed with the next step.
11.Back up the settings so they are not lost when the power fails:
– BOP-2 in the menu "EXTRAS" - "RAM-ROM".
– IOP in the menu "SAVE RAM TO ROM".
You have replaced the Control Unit and transferred the safety function settings from the
operator panel to the new Control Unit.
334
The loaded settings are not compatible with the inverter.
Clear the alarm with p0971 = 1 and recommission the drive.
Converter with CU230P-2 Control Units
Operating Instructions, 04/2015, FW V4.7 SP3, A5E34257946B AB