Mitsubishi Electric fr-e700 series, Instruction Manual

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Inspection Maintenance and inspection
8 - 4
8.1.4 Display of the life of the inverter parts
The self-diagnostic alarm is output when the life span of the control circuit capacitor, cooling fan and
each parts of the inrush current limit circuit is near to give an indication of replacement time.
For the life check of the main circuit capacitor, the alarm signal (Y90) will not be output if a measuring
method using Parameter 259 is not performed. (Refer to the description below.)
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 10% life remaining
Inrush current limit circuit Estimated 10% life remaining (Power on: 100,000 times left)
Cooling fan Less than 50% of the predetermined speed
Tab. 8-2: Guideline for the alarm signal output
NOTE Refer to section 6.21.2 to perform the life check of the inverter parts.