Replacement Of Parts - Mitsubishi Electric FR-E720-600 Instruction Manual

6.1.7

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.
Use the life check function as a guidance of parts replacement.
Part Name
Cooling fan
Main circuit smoothing
capacitor
On-board smoothing
capacitor
Relays
∗1
Replacement years for when the yearly average ambient temperature is 40°C (104°F)
(without corrosive gas, flammable gas, oil mist, dust and dirt etc.)
∗2
Output current: equivalent to rating current of the Mitsubishi standard motor (4 poles)
NOTE
For parts replacement, consult the nearest Mitsubishi FA Center.
(1) Cooling fan
The replacement interval of the cooling fan used for cooling the parts generating heat such as the main circuit semiconductor
is greatly affected by the ambient temperature. When unusual noise and/or vibration is noticed during inspection, the cooling
fan must be replaced immediately.
NOTE
For parts replacement, consult the nearest Mitsubishi FA Center.
Inverter Type
FR-E720-080 to 175
FR-E740-040 to 095
FR-E720-240, 330
FR-E740-120, 170
FR-E720-470, 600
The FR-E720-050 or less, FR-E740-026 or less is not provided with a cooling fan.
Standard Replacement
Interval ∗1
10 years
10 years ∗2
10 years
—
Fan Type
MMF-06F24ES-RP1 BKO-CA1638H01
MMF-06F24ES-RP1 BKO-CA1638H01
MMF-08D24ES-RP1 BKO-CA1639H01
Description
Replace (as required)
Replace (as required)
Replace the board (as required)
as required
Units
1
2
2
Inspection items
289
6