ABB ABB Frequency Converter ACC 601-0025-3 ACC 601-0025-3

Warning: Only trained personnel should perform this procedure.

Enter the current usage hours of the ACx 601 unit

Is there an increase in noise from fan bearings?

Is there a gradual rise in the heatsink temperature despite cleaning?

If the above symptoms are present, fan replacement is recommended.

Was the fan successfully removed from the bottom of the frame?

Replacement fans should be sourced from ABB only.

Sign off on the fan replacement

Warning: Only trained personnel should perform this procedure.

Enter the current hours of the ACx 600 intermediate circuit

Check if the frequency converter loading is within acceptable range

Check if the ambient temperature is within acceptable range

Is there a mains fuse failure or a Fault trip?

Enter the details if capacitor failure is suspected

Contact ABB if capacitor failure is suspected. Do not attempt operation with other than ABB specified spare parts.

Upload a photo of the suspected faulty capacitor

Reforming: Reform (re-age) spare part capacitors once a year according to ACS 600 Capacitor Reforming Guide (code: 64059629).

Warning: The heatsink should be checked and cleaned annually to prevent overtemperature warnings and faults.

If cleaning is carried out in the same room where the unit is normally operated, use a soft brush.

Dust removed gently with a soft brush?

If the installation can be taken apart and the cleaning is carried out in another room (or outdoors), compressed air can be used.

Compressed air used for cleaning?

Prevent fan rotation when using compressed air for heatsink cleaning to prevent bearing wear.

Fan rotation prevented during cleaning?

Sign off on the heatsink cleaning