Servicing and maintenance
6.2 Replacing the Control Unit or Power Module
Frequency inverter
Operating Instructions, 08.10. 2008, t.b.d.
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6.2 Replacing the Control Unit or Power Module
Replacing the Control Unit
When replacing components, ensure that you use the correct ones.
Procedure when replacing a Control Unit
1. Disconnect the converter power supply.
2. Wait 5 minutes until the device has discharged itself.
3. Disconnect the control cables from the Control Unit.
4. If a memory card is being used, remove it from the Control Unit.
5. Remove the defective Control Unit from the Power Module.
6. Mount a new Control Unit on the Power Module.
7. Reconnect the control cables.
8. If a memory card is being used, insert it into the new Control Unit.
9. Switch-on the frequency inverter power supply again.
10. If required, manually download a valid parameters set
Replacing the Power Module
CAUTION
Before you replace the Power Module, ensure that all of the parameter settings are saved
in the EEPROM of the Control Unit (refer to P0014 or P0971).
Replacing a Power Module
1. Switch-off the Power Module power supply.
2. After you have switched it off, wait 5 minutes until the device has discharged itself.
3. Disconnect the Power Module connecting cable
4. Remove the Control Unit from the Power Module
5. Replace the Power Module
6. Mount the Control Unit onto the new Power Module
7. Connect the Power Module connecting cable
8. Switch-on the Power Module power supply again
Before switching-on the power supply again, ensure that the new Power Module is correctly
installed and connected.
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