ABB Frequency Converter ACC 601-0009-5

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Fan can be withdrawn by removing the bottom of the frame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

– The ACx 600 intermediate circuit employs several electrolytic capacitors. Their lifespan is approximately 100 000 hours, but dependent on the frequency converter loading and the ambient temperature.

– Capacitor life can be prolonged by lowering the ambient temperature. It is not possible to predict capacitor failure.

– Capacitor failure is usually followed by a mains fuse failure or a Fault trip.

– Contact ABB if capacitor failure is suspected. Replacements are available from ABB. Do not attempt operation with other than ABB specified spare parts.

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

Warning: This procedure requires trained personnel with PPE!

If heatsink fins have dust, proceed with the cleaning procedure

If using compressed air, ensure the installation is taken apart and cleaning is carried out in another room or outdoors.

Fan rotation prevented during cleaning?

Sign off on the heatsink cleaning