ABB ACQ810-04, Hardware Manual, Page: 111 / 144

Maintenance 111
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.
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Cleaning the interior of the heatsink
WARNING! Follow the safety instructions, page 11 . Ignoring the
instructions can cause physical injury or death, or damage to the
equipment.
WARNING! Use a vacuum cleaner with antistatic hose and nozzle. Using a
normal vacuum cleaner creates static discharges which can damage circuit
boards.
1. Ensure that the drive is disconnected from the power line and all other precautions
described under Safety in installation and maintenance on page 12 have been taken
into consideration.
2. Undo the fastening screws of the handle plate of the drive module.
3. Remove the handle plate.
4. Vacuum the interior of the heatsink from the opening.
5. Blow compressed air upwards from the opening and, at the same time, vacuum from
the top of the drive module.
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