Display Of The Life Of The Inverter Parts - Mitsubishi Electric FR-E700 Instruction Manual

Inspection
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 meas-
uring 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
Main circuit capacitor
Control circuit capacitor
Inrush current limit circuit
Cooling fan
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.
8 - 4
Judgement Level
85% of the initial capacity
Estimated 10% life remaining
Estimated 10% life remaining (Power on: 100,000 times left)
Less than 50% of the predetermined speed
Maintenance and inspection