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What can cause an INFD or internal error 13 on the ATV630 and ATV930 Process Drives?
Published date:
02 September 2020
Issue:
What is the INFD fault on the ATV630 and ATV930 drives?
Product Line:
Altivar Machine, Altivar Process Drives
Environment:
All model numbers, all serial numbers
Cause:
One or more Brick are not in operation
Current transformer of the brick damaged
Resolution:
Check the high speed link cables (GG45) on the Power board (CMP6) and the Inverter Bricks (CMI1). This happens if not all pins of the connector have a good connection.
Measurement of the U/V/W phase currents of each brick on the paralleling choke to identify the brick with less output current.
Manual IGBT test of each Brick with a multimeter (open Motor choke connections)
Check the Inverter board and the CMI1 board (the communication board on the Inverter board) for visible damages.
Run the motor for a certain time (if possible) and check the thermal state of each brick. The one with a lower temperature does not switch on the IGBTs and has to be replaced.
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