Diagnostics and maintenance
365
ACH550 User's Manual
Heatsink
The heatsink fins accumulate dust from the cooling air. Since a
dusty sink 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.
Check the heatsink as follows (when necessary):
1.
Remove power from the drive.
2.
Remove the cooling fan (see
on page
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 a risk of the dust entering adjoining equipment,
perform the cleaning in another room.
4.
Replace the cooling fan.
5.
Restore power.
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 10ºC (18ºF)
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
ABB. Do not use other than ABB specified spare parts.
Summary of Contents for ACH550-01
Page 1: ...ACH550 User s Manual ACH550 01 Drives 0 75 110 kW ACH550 UH Drives 1 150 HP ABB ...
Page 10: ...Update Notice 8 ...
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Page 18: ...6 ACH550 User s Manual ...
Page 50: ...38 Preparing for installation ACH550 User s Manual ...
Page 325: ...313 ACH550 User s Manual ...
Page 358: ...346 ACH550 User s Manual ...
Page 409: ...Technical data 397 ACH550 User s Manual Frame size R1 IP54 UL Type 12 ...
Page 410: ...398 Technical data ACH550 User s Manual Frame size R2 IP54 UL Type 12 ...
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Page 415: ...Technical data 403 ACH550 User s Manual Frame size R1 IP21 UL Type 1 ...
Page 416: ...404 Technical data ACH550 User s Manual Frame size R2 IP21 UL Type 1 ...
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