ABB Frequency Converter ACS 601-0120-5

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 fan failure, proceed with the replacement.

Fan can be withdrawn by removing the bottom of the frame.

Replacement fans are available from ABB. Do not attempt operation with other than ABB specified spare parts.

Sign off on the fan replacement procedure

Warning: This procedure requires trained personnel with PPE!

Current hours on the ACx 600 intermediate circuit

If hours exceed 100000, proceed with the following steps. If not, report the current hours and end the procedure.

Check for mains fuse failure or a Fault trip

If capacitor failure is suspected, contact ABB for replacement parts. Do not attempt operation with non-ABB parts.

Upload a photo of the suspected failed capacitor

Sign off on the capacitor check

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