Cleaning The Heat Sink - ABB ACS380 Hardware Manual

Cleaning the heat sink

The fins of the drive heat sink become dusty from the cooling air. If the heat sink is not
clean, this can cause the drive to give overtemperature warnings and faults.
WARNING! Obey the instructions in
the instructions can cause physical injury or death, or damage to the
equipment.
WARNING! Use a vacuum cleaner with an antistatic hose and nozzle. A
normal vacuum cleaner can cause static discharges which can cause damage
to circuit boards.
To clean the heat sink:
1. Stop the drive and disconnect it from the input power.
2. Wait for 5 minutes and measure to make sure that there is no voltage. Refer to
Precautions before electrical work
3. Remove the cooling fan. Refer to
4. Blow clean, dry and oil free compressed air from the bottom of the heat sink to the
top and use a vacuum cleaner at the air outlet to trap the dust.
If there is a risk that dust can go into other equipment, clean the heat sink in
another room.
5. Install the cooling fan.
Safety instructions
on page 15.
Replacing the cooling fans
Maintenance 81
on page 13. Ignoring
on page 82.