Table of Contents
Advertisement
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
*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
Input current: 80% of the converter unit rating
NOTE
• For parts replacement, contact the nearest Mitsubishi FA center.
Converter unit parts life display
The converter unit diagnoses the 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
Control circuit capacitor
Inrush current limit circuit
Cooling fan
NOTE
• Refer to
page 81
Estimated lifespan
10 years
*2
10 years
*2
10 years
—
10 years
Judgment level
Estimated remaining life 10%
Estimated remaining life 10% (Power ON: 100,000 times left)
Not more than the specified speed
to perform the life check of the converter unit parts.
*1
Replace (as required)
Replace (as required)
Replace the board (as required).
As required
Replace (as required)
7. PRECAUTIONS FOR MAINTENANCE AND INSPECTION
Description
157
7.1 Inspection item
1
2
3
4
5
6
7
8
9
10
Advertisement
Table of Contents
