ABB ACS550-02 User Manual page 177

Replacing the Fan (R7)
1. Remove the upper front cover and disconnect the control panel cables.
2. Disconnect the discharging resistor wire.
3. Remove the DC capacitor pack by undoing the black fixing screws.
4. Disconnect the fan supply wires (detachable terminal).
5. Disconnect the fan capacitor wires.
6. Undo the black fixing screws of the fan cassette.
7. Press the snap-on holders to release the side cover.
8. Lift from the handle and pull the fan cassette out.
4
3
2
3
3
3
3
DC+
DC-
Install the fan in reverse order to the above and replace the fan capacitor.
DC-
3
3
DC+
6
8
7
5
7
6
175
Maintenance