Replacing The Additional Fans In The Ip54 / Ul Type 12 Drives (+B055 And +B059) - ABB ACS800 Hardware Manual

Replacing the additional fans in the IP54 / UL type 12 drives (+B055 and +B059)

WARNING! Read and follow the instructions in chapter
the instructions can cause physical injury or death, or damage to the equipment.
1. Switch off the power to the unit and open the main disconnecting device. Close
the grounding switch (option +F259) if there is one.
2. Let the intermediate circuit DC capacitors discharge for five minutes. Ensure by
measuring that the drive is not live before starting the work.
3. Remove the front and back gratings of the fan compartment by lifting them
upwards.
4. Remove the shrouds by undoing the fastening screws.
5. Undo the fastening screws of the side/top cover of the fan.
6. Lift the side/top cover of the fan off.
7. Disconnect the fan supply wire connector from the cabinet roof (on top and
inside the cabinet).
8. Undo the fastening screws of the fan cassette at each corner.
9. Lift the fan cassette off.
10. Undo the cable ties on the top of the fan cassette.
11. Disconnect the cables (detachable terminals).
12. Remove the fan capacitor by undoing the fastening screw of the clamp.
13. Undo the fastening screws of the fan.
14. Pull the fan out.
15. Install the new fan and fan capacitor in reverse order to the above. Ensure that
the fan is centered and rotates freely.
Safety instructions. Ignoring
Maintenance
119