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ACS550-02/U2 User’s Manual
Maintenance
Heatsink
The heatsink fins pick up dust from the cooling air. The drive runs into
overtemperature alarms and faults if the heatsink is not clean. In a “normal”
environment (not dusty, not clean) the heatsink should be checked annually, in a
dusty environment more often.
Clean the heatsink as follows (when necessary):
1. Remove the cooling fan (see section
Fan
).
2. Blow dry clean compressed air from bottom to top and simultaneously use a vacuum
cleaner at the air outlet to trap the dust.
Note:
Prevent dust from entering adjoining
equipment.
3. Replace the cooling fan.
Fan
The life span of the cooling fan of the drive is about 50 000 (R7) and 60 000 (R8)
hours. The actual life span depends on the running time of the fan, ambient
temperature and dust concentration.
When the Assistant Control Panel is in use, the Notice Handler Assistant informs
when the definable value of the operating hour counter is reached (see parameter
2901). This information can also be passed to the relay output (see parameter 1401)
regardless of the used panel type.
Replacement fans are available from ABB. Do not use other than ABB specified
spare parts.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com