Mitsubishi Electric FR-F800 Series Instruction Manual page 627

7.1.6 Replacement of parts
The inverter consists of many electronic parts such as semiconductor devices.
The following parts may deteriorate with age because of their structures or physical characteristics, leading to reduced
performance or fault of the inverter. For preventive maintenance, the parts must be replaced periodically.
Use the life check function as a guidance of parts replacement.
Part name
Cooling fan
Main circuit smoothing capacitor
On-board smoothing capacitor
Relays
Main circuit fuse inside the inverter (FR-F840-
04320(185K) or higher)
*1 Estimated lifespan for when the yearly average surrounding air temperature is 40°C.
(without corrosive gas, flammable gas, oil mist, dust and dirt etc.)
*2 Output current: 80% of the inverter rating
NOTE
• For parts replacement, contact the nearest Mitsubishi FA center.
 Inverter parts life display
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 indication of replacement time.
Guideline for life judgment using the life warning output
Part
Main circuit capacitor
Control circuit capacitor
Inrush current limit circuit
Cooling fan
NOTE
• Refer to
626
7. PRECAUTIONS FOR MAINTENANCE AND INSPECTION
7.1 Inspection item
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10 years
*2
10 years
*2
10 years
—
10 years
85% of the initial capacity
Estimated remaining life 10%
Estimated remaining life 10% (Power ON: 100,000 times left)
Not more than the specified speed
page 220 to perform the life check of the inverter parts.
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*1
Estimated lifespan
Judgment level
Description
Replace (as required)
Replace (as required)
Replace the board (as required).
As required
Replace (as required)