Replacement Of Parts - Mitsubishi Electric FR-V520-1.5K to 55K Instruction Manual

Precautions for maintenance and
inspection
Area of Inspection
Inspection Item
(1) Check for LED lamp
Display
(2) Clean.
Display
Check that reading is
Meter
normal.
(1) Check for unusual
General
(2) Check for unusual
Motor
Check with megger
Insulation (across terminals and
resistance earth (ground)
terminal).
* Values in parentheses indicate those for 400V class.
*Consult us for periodic inspection.
6.5.7

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.
Part Name
Cooling fan
Main circuit smoothing capacitor
On-board smoothing capacitor
Relays
CAUTION
For parts replacement, consult the nearest Mitsubishi FA Center.
Interval
Periodic*
Description
"
blown.
"
"
"
vibration and noise.
"
odor.
Standard Replacement Interval
2 to 3 years
10 years
10 years
—
Method
(1) Lamps indicate
indicator lamps on (1) Check that lamps
panel.
(2) Clean with rag.
Must satisfy
Check the readings of specified and
the meters on the panel. management
values.
(1) Auditory, sensory,
visual checks.
(2) Check for unusual
(1), (2) No fault.
odor due to
overheat, damage,
etc.
Disconnect cables from
"
U, V, W (including motor 5MΩ or more.
cables).
Replace the board (as required).
95
Criterion Instrument
are lit.
Voltmeter,
ammeter, etc.
500V megger
Description
Replace (as required)
Replace (as required)
Replace as required.