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Inspection items
6.1.4 Display of the life of the drive unit parts
The self-diagnostic warning is output when the life span of each part such as the control circuit capacitor, the cooling fan, or
the inrush current limit circuit is near its end. It gives an indication of replacement time.
The life alarm output can be used as a guideline for life judgement.
Parts Judgement Level
Main circuit capacitor 85% of the initial capacity
Control circuit capacitor Estimated remaining life 10%
Inrush current limit circuit
Estimated remaining life 10%
(Power on: 100,000 times left)
Cooling fan Less than 50% of the specified rotations per minute
POINT
Refer to page 245 to perform the life check of the drive unit parts.