Siemens SINAMICS G120 Operating Instructions Manual page 400

Corrective maintenance
9.2 Replacing inverter components
5. Reconnect the signal cables of the Control Unit.
6. Switch on the line voltage again.
7. Open the project in the PC the matches the drive.
8. Select "Load to device".
9. Connect Startdrive online with the drive.
The inverter signals faults after the download. Ignore these faults, as they will be
automatically acknowledged by the following steps.
10.Press the "Start safety commissioning" button.
11.Enter the password for the safety functions.
12.Confirm the prompt for saving your settings (copy RAM to ROM).
13.Disconnect the online connection.
14.Switch off the inverter power supply.
15.Wait until all LEDs on the inverter go dark.
16.Switch on the inverter power supply again.
17.Perform a reduced acceptance test.
(Page 416)
You have replaced the Control Unit and transferred the safety function 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
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. 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.
400
Reduced acceptance after component replacement and firmware change
Converter with the CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2017, FW V4.7 SP6, A5E34259001B AD