ABB BALDOR ACB530 User Manual page 191

9.9 Maintenance
9.9.1 Maintenance Intervals
If installed in an appropriate environment, the drive requires very little maintenance. The table lists the routine maintenance
intervals recommended by Baldor.
Maintenance
Heatsink temperature check
and cleaning
Main cooling fan replacement
Internal enclosure cooling fan
replacement
(IP54 / UL type 12 drives)
Capacitor reforming
Capacitor replacement
(frame sizes R5 and R6)
Replace battery in the Assistant
Control Panel
Consult your local Baldor District Offi ce for more details on the maintenance. On the Internet, go to http://www.baldor.com.
9.9.2 Heatsink
The heatsink fi ns accumulate dust from the cooling air. Since a dusty heatsink is less effi cient 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 the drive.
2. Remove the cooling fan (see section Main fan replacement).
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. Reinstall the cooling fan.
5. Restore power.
9.9.3 Main fan replacement
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).
Fan failure can be predicted by the increasing noise from fan bearings and the gradual rise in the heatsink temperature in
spite of heatsink cleaning. If the drive is operated in a critical part of a process, fan replacement is recommended once these
symptoms start appearing. Replacement fans are available from Baldor. Do not use other than Baldor specifi ed spare parts.
MN796 - ACB530
Table 9-2 Maintenance Interval Instruction
Interval
Depends on the dustiness of the
environment (every 6...12 months)
Every six years
Every three years.
Every year when stored
Every nine years
Every ten years
Instruction
See Heatsink
See Main fan replacement on
See Internal enclosure fan
replacement
See Reforming
See Replacement
See Battery
Troubleshooting and Maintenance 9-9