Displaying the life of the inverter parts
The inverter diagnoses the main circuit capacitor, control circuit capacitor, cooling fan, and inrush
current limit circuit by itself and estimates their lives.
The self-diagnostic warning is output when the life span of each part is near its end. It gives an indi-
cation of replacement time.
The life warning output can be used as a guideline for life judgment.
Main circuit capacitor
Control circuit capacitor
Inrush current limit circuit
Initial values differ according to the inverter capacity (refer to page 5-94 for details).
Refer to page 5-91 to perform the life check of the inverter parts.
7 - 6
85% of the initial capacity
Estimated remaining life 10%
Estimated remaining life 10% (Power ON: 100,000 times left)
Less than 50% of the specified speed.
Guideline for the warning signal output
Precautions for maintenance and inspection