ABB ACH580 Series Installation, Operation And Maintenance Manual page 75

ACH580 Ultra-Low Harmonic Drives Installation, Operation and Maintenance Manual
Heatsink
The heatsink fins accumulate dust from the cooling air. Since a dusty heatsink is less
efficient at cooling the drive, overtemperature faults become more likely. In a
"normal" environment (not dusty, not clean) check the heatsink annually, in a dusty
environment check more often.
Clean the heatsink as follows (when necessary):
1. Remove power from drive. Wait 5 minutes and measure to confirm.
2. Remove the cooling fan(s) (see section
3. Blow clean, dry, oil-free condensed 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 the dust entering adjoining equipment, perform the cleaning
in another room.
4. Replace the cooling fan(s).
5. Restore power.
Fans
See section
average operation conditions.
In a speed-controlled fan, the speed of the fan matches the cooling needs. This
increases the life span of the fan.
Main fans are speed controlled. When the drive is stopped, the main fan is kept
running at low speed to cool the control unit. IP21 (UL Type 1) frames R6 and R8
and all IP55 (UL Type 12) frames have auxiliary fans that are not speed controlled
and run all the time when the control unit is powered.
Replacement fans are available from the manufacturer. Do not use other than
specified spare parts.
Maintenance schedule
Fans below).
on page 74 for the fan replacement interval in
ACH580 Ultra-Low Harmonic Drives Installation
75