104 Maintenance
Heatsink
The heatsink fins pick up dust from the cooling air. If the heatsink is not clean, the
drive runs into overtemperature warnings and faults. In a normal environment, the
heatsink should be checked annually and in a dusty environment it should it be
checked more often.
Clean the heatsink as follows (when necessary):
1. Remove the cooling fan (see section Cooling fan).
2. Blow clean compressed air (not humid) from bottom to top and simultaneously
use a vacuum cleaner at the air outlet to trap the dust.
Note: If there is a risk of dust entering the adjoining equipment, perform the
cleaning in another room.
3. Refit the cooling fan.
Cooling fan replacement Every 3 years if used in clean
operating environment.
Yearly inspection is highly
recommended if used in dusty,
corroded or ambient
temperature is higher than
40 °C (104 °F).
See Cooling fan on page 105.
DC capacitor replacement Every 6 years if the ambient
temperature is higher than
40 °C (104 °F) or if the drive is
subjected to cyclic heavy load
or continuous nominal load.
Otherwise, every 9 years.
Contact your local ABB
Service representative.
Control panel battery
replacement
Every 3 years The battery is housed on the
rear of the control panel.
Replace with a new CR 2032
battery.
Maintenance task/object Interval Instruction
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