Replacing The Control Unit Without The Safety Functions Enabled - Siemens SINAMICS G120D Original Instructions Manual

Corrective maintenance

10.4 Replacing the Control Unit without the safety functions enabled

10.4 Replacing the Control Unit without the safety functions enabled
Replacing a Control Unit with data backup on a memory card
Procedure
Proceed as follows to exchange the Control Unit:
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 from the Control Unit.
3. Remove the defective Control Unit.
4. Mount the new Control Unit onto the Power Module. The new Control Unit must have the
same order number and the same or a higher firmware version as the Control Unit that
was replaced.
5. Remove the memory card from the old Control Unit and insert it in the new Control Unit.
6. Reconnect the signal cables of the Control Unit.
7. Connect up the line voltage again.
8. The inverter loads the settings from the memory card.
9. After loading, check whether the inverter outputs Alarm A01028.
– Alarm A01028:
– No alarm A01028:
You have successfully replaced the Control Unit.
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The settings that have been loaded are not compatible with the inverter.
Clear the alarm with p0971 = 1, and recommission the drive.
The inverter accepts the settings that have been loaded.
Converter with control units CU250D-2
Operating Instructions, 04/2014, FW V4.7, A5E34261542B AA