Maintenance Intervals; Heatsink; Main Fan - ABB ACS550-01 User Manual

124
Maintenance
Warning! Read "Safety" on page 3 before performing any maintenance on the
equipment. Ignoring the safety instructions can cause injury or death.

Maintenance Intervals

If installed in an appropriate environment, the drive requires very little maintenance.
This table lists the routine maintenance intervals recommended by ABB.
Heatsink temperature check
and cleaning
Main cooling fan replacement
Capacitor change
(Frame size R5 and R6)

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.
2. Remove the cooling fan (see section "Main Fan" on page 124).
3. 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 the dust entering adjoining equipment, perform the cleaning
in another room.
4. Replace the cooling fan.
5. Restore power.

Main Fan

The drive's main cooling fan has a life span of about 60,000 operating hours at
maximum rated operating temperature and drive load. The expected life span
doubles for each 10 °C (18 °F) drop in the fan temperature (fan temperature is a
function of ambient temperatures and drive loads).
Maintenance
Maintenance
Depends on the dustiness of the
environment (every 6...12
months)
Every five years
Every ten years
Interval
See "Heatsink" on page 124.
See "Main Fan" on page 124.
See "Capacitors" on page 125.
ACS550 User's Manual
Instruction