ABB ACQ580-34, Hardware Manual

Page: 149 / 244

1. Stop the drive and do the steps in section Electrical safety precautions (page 18) before
you start the work.
2. Open the cabinet door.
3. Clean the interior of the cabinet. Use a vacuum cleaner and a soft brush.
4. Clean the air inlets of the fans and air outlets of the modules (top).
5. Clean the air inlet gratings (if any) on the door.
6. Close the door.
Cleaning the interior of the heatsink
The module heatsink fins pick up dust from the cooling air. The drive runs into
overtemperature warnings and faults if the heatsink is not clean.
WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or death,
or damage to the equipment can occur.
WARNING!
Use a vacuum cleaner with antistatic hose and nozzle, and wear a grounding
wristband. Using a normal vacuum cleaner creates static discharges which can
damage circuit boards.
1. Stop the drive and do the steps in section Electrical safety precautions (page 18) before
you start the work.
2. Make sure that the drive is disconnected from the power line and all other precautions
described under Grounding (page 21) have been taken into consideration.
3. Undo the attaching screws of the handle plate of the drive module.
4. Remove the handle plate.
5. Vacuum the interior of the heatsink from the opening.
6. Blow clean compressed air (not humid or oily) upwards from the opening and, at the
same time, vacuum from the top of the drive module.
Note: If there is a risk of dust entering adjoining equipment, perform the cleaning in
another room.
7. Reinstall the cover plate.
Maintenance 149