Inspection Maintenance and inspection
8 - 6
8.1.6 Cleaning
Always run the inverter in a clean status. When cleaning the inverter, gently wipe dirty areas with a soft
cloth immersed in neutral detergent or ethanol.
8.1.7 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.
ī
Replacement years for when the yearly average ambient temperature is 40Ā°C
(without corrosive gas, flammable gas, oil mist, dust and dirt etc.)
ī
Output current: 80% of the inverter rated current
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.
b
CAUTION:
Do not use solvent, such as acetone, benzene, toluene and alcohol, as they will cause the inverter
surface paint to peel off.
The display, etc. of the operation panel and parameter unit (FR-PU04/FR-PU07) are vulnerable
to detergent and alcohol. Therefore, avoid using them for cleaning.
Part Name Standard Replacement Interval
ī
Description
Cooling fan 10 years Replace (as required)
Main circuit smoothing capacitor
10 years
ī
Replace (as required)
On-board smoothing capacitor 10 years Replace the board (as required)
Relays ā As required
Tab. 8-4: Wearing parts
NOTE For parts replacement, consult the nearest Mitsubishi FA Centre.
NOTE The FR-E720S-030SC or less and the FR-E740-026SC or less are not provided with a cooling fan.
To Next Page
Loading...
Need help?
General
