ABB Frequency Converter ACP 601-0120-5

Warning: This procedure requires trained personnel with PPE!

Enter the current hours of the ACx 600 intermediate circuit

Is the frequency converter loading and ambient temperature within normal range?

If not, consider lowering the ambient temperature to prolong capacitor life.

Check for mains fuse failure or a Fault trip

Report any suspected capacitor failure to ABB

Warning: Do not attempt operation with other than ABB specified spare parts.

Upload a photo of the capacitors

Sign off on the capacitor replacement

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

Warning: Only trained personnel should perform this procedure.

Enter the current usage hours of the ACx 601 unit

Is there increasing noise from fan bearings?

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

Is the frequency converter operated in a critical part of a process?

If the above checks indicate a need for fan replacement, proceed with the following steps.

Fan successfully removed from the bottom of the frame?

Upload a photo of the removed fan

Enter the model number of the replacement fan from ABB