Siemens SINAMICS G120 Operating Instructions Manual page 421

4. Mount the new Control Unit on the Power Module.
5. Reconnect the signal cables of the Control Unit.
6. Switch on the line voltage again.
7. Open the right project for the drive in the PC.
8. Select "Load to device".
9. Connect Startdrive online with the drive.
10.Confirm the prompt for saving your settings (copy RAM to ROM).
11.Disconnect the online connection.
You have replaced the Control Unit and transferred the settings from the PC to the new 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
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. Switch on 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:
– For BOP‑2 in the menu "EXTRAS" - "RAM-ROM".
– For IOP‑2 in the menu "SAVE RAM TO ROM".
Converter with the CU250S-2 Control Units
Operating Instructions, 04/2018, FW V4.7 SP10, A5E31759476B AG
The loaded settings are not compatible with the inverter.
Clear the alarm with p0971 = 1 and recommission the drive.
Corrective maintenance
9.2 Replacing inverter components
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