Replacement (R4, R5); Replacement (R6); Capacitors; Reforming - ABB ACS800 Hardware Manual

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Replacement (R4, R5)

Remove the front cover. The fan is located on the lower right-hand side of the unit
(R4) or on the right-hand side of the control panel (R5). Lift the fan out and
disconnect the cable. Install the fan in reverse order.

Replacement (R6)

Remove the top cover by lifting it by the rear edge. To remove the fan, release the
retaining clips by pulling the back edge (1) of the fan upwards. Disconnect the cable
(2, detachable terminal). Install the new fan in reverse order.

Capacitors

The drive intermediate circuit employs several electrolytic capacitors. Their lifespan
is from 45 000 to 90 000 hours depending on drive loading and ambient
temperature. Capacitor life can be prolonged by lowering the ambient temperature.
It is not possible to predict a capacitor failure. Capacitor failure is usually followed by
a mains fuse failure or a fault trip. Contact ABB if capacitor failure is suspected.
Replacements for frame size R4 and up are available from ABB. Do not use other
than ABB specified spare parts.

Reforming

Reform (re-age) spare part capacitors once a year according to ACS 600/800
Capacitor Reforming Guide (code: 64059629).
Maintenance
2
1
Air flow upwards
Rotation direction
View from above when top
cover is removed