Periodic Maintenance Of Parts; Part Replacement Guidelines - YASKAWA F7 User Manual

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Periodic Maintenance of Parts

In order to keep the Drive operating normally over a long period of time, and to prevent down time due to an unexpected
failure, it is necessary to perform periodic inspections and replace parts according to their service life.
The data indicated in the following table is to be used as a general guideline only. Periodic inspection standards vary
depending on the Drive's installation environment conditions and usage. The Drive's suggested maintenance periods are noted
below.
Part
Cooling fan(s)
DC bus capacitors
Soft charge contactor
DC bus fuse
Control power fuse
PCB capacitors
Note: The standard replacement period is based on the following usage conditions:
Ambient temperature:Yearly average of 86°F/ 30°C
Load factor: 80% maximum
Operating time: 12 hours maximum per day
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Table 7.4 Part Replacement Guidelines
Standard Replacement Period
2 to 3 years (20,000 hours)
5 years
-
10 years
5 years
Maintenance 7 - 4
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Replacement Method
Replace with new part.
Replace with new part.
(Determine need by inspection.)
Determine need by inspection.
Replace with new part.
Replace with new board.
(Determine need by inspection.)
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