Corrective maintenance
9.1 Replacing inverter components
Replacing a Control Unit with data backup in STARTER
Precondition
You have backed up the actual settings of the Control Unit to be replaced to a PC using
STARTER.
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. Open the right project for the drive in the PC.
8. Go online and transfer the settings from the PC to the inverter by pressing the
button.
The inverter signals faults after the download. Ignore these faults, as they will be
automatically acknowledged by the following steps.
9. Select the screen form for the safety functions.
10.Select the "Change settings" button.
11.Select the "Activate settings" button.
12.Save your settings (copy RAM to ROM).
13.Switch off the inverter supply voltage.
14.Wait until all LEDs on the inverter go dark.
15.Switch on the inverter supply voltage again.
16.Perform a
acceptance test, see section: Reduced acceptance test after function
expansions (Page 215).
You have replaced the Control Unit and transferred the safety function settings from the PC
to the new Control Unit.
Converter with control units CU240D-2
240 Operating Instructions, 04/2015, FW V4.7.3, A5E34262100B AB
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