ACQ800-37 Hardware Manual
103
Maintenance
Heatsinks
The heatsink fins of the power modules pick up dust from the cooling air. The module
runs into overtemperature warnings and faults if the heatsinks are not clean. In a
“normal” environment (not especially dusty nor clean) the heatsinks should be
checked annually, in a dusty environment more often.
Whenever necessary, clean the heatsinks as follows:
1. Remove the cooling fan (see section
on page
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 the dust from
entering adjoining equipment.
3. Refit the cooling fan.
Capacitors
The inverter modules employ several electrolytic capacitors. Their actual lifespan
depends on the operating time of the drive, loading and ambient temperature.
Capacitor life can be prolonged by lowering the ambient temperature.
It is not possible to predict capacitor failure. Capacitor failure is usually followed by
damage to the unit and an input cable fuse failure, or a fault trip. Contact ABB if
capacitor failure is suspected.
Reforming
Reform (re-age) spare part capacitors once a year according to
Converter module
capacitor reforming instructions
(code: 64059629 [English], available through your
local ABB representative).
Capacitor replacement
Contact an ABB service representative.
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Summary of Contents for ACQ800 Series
Page 1: ...Hardware Manual ACQ800 37 Drives 55 to 450 kW 75 to 550 hp ACQ800 ...
Page 4: ......
Page 12: ...12 ACQ800 37 Hardware Manual Safety instructions ...
Page 24: ...24 ACQ800 37 Hardware Manual About this manual ...
Page 52: ...52 ACQ800 37 Hardware Manual Mechanical installation ...
Page 78: ...78 ACQ800 37 Hardware Manual Electrical installation ...
Page 84: ...84 ACQ800 37 Hardware Manual Motor control and I O board RMIO ...
Page 92: ...92 ACQ800 37 Hardware Manual Installation checklist and start up ...
Page 106: ...106 ACQ800 37 Hardware Manual Maintenance 3 4 5 6 8 7b 7a ...
Page 107: ...ACQ800 37 Hardware Manual 107 Maintenance 9 10 11 View from back ...
Page 123: ...ACQ800 37 Hardware Manual 123 Technical data Declaration of Conformity ...
Page 124: ...124 ACQ800 37 Hardware Manual Technical data ...
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