Corrective maintenance
9.2 Replacing inverter components
Converter with the control units CU240D-2
Operating Instructions, 04/2018, FW V4.9 SP10, A5E34262100B AF
293
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:
The loaded settings are not compatible with the inverter.
Clear the alarm with p0971 = 1 and recommission the drive.
–
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".
You have replaced the Control Unit and transferred the safety function settings from the
operator panel to the new Control Unit.
❒
9.2.5
Replacing the Control Unit without data backup
If you do not backup the settings, then you must recommission the drive after replacing the
Control Unit.
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.
Recommission the drive.