Cleaning the heatsink
The drive module heatsink fins pick up dust from the cooling air. The drive runs into
overtemperature warnings and faults if the heatsink is not clean. When necessary, clean
the heatsink as follows.
WARNING!
Use the required personal protective equipment. Wear protective gloves and long
sleeves. Some parts have sharp edges.
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 22)
before you start the work.
2. Remove the module cooling fan(s). See the separate instructions.
3. Blow dry, clean and oil-free compressed air from bottom to top and simultaneously
use a vacuum cleaner at the air outlet to trap the dust. If there is a risk of dust
entering adjoining equipment, do the cleaning in another room.
4. Reinstall the cooling fan.
216 Maintenance
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