Siemens Sinamics CU240D-2 DP Operating Instructions Manual page 292

Corrective maintenance
9.2 Replacing inverter components
13.Disconnect the online connection.
14.Switch off the inverter power supply.
15.Wait until all LEDs on the inverter are dark.
16.Switch the inverter power supply on again.
17.Perform a reduced acceptance test.
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
Requirement
You have backed up the actual settings of the Control Unit to be replaced to an operator
panel.
Procedure
1. Switch off 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.Switch off the inverter power supply.
12.Wait until all LEDs on the inverter are dark.
290
Reduced acceptance test after function expansions (Page 163)
The loaded settings are not compatible with the inverter.
Set p0971 = 1 to delete the alarm. Check the inverter settings. We recommend that
you recommission the drive.
Converter with the control units CU240D-2
Operating Instructions, 04/2018, FW V4.9 SP10, A5E34262100B AF