Mitsubishi Electric FR-D720S SC EC, Инструкция по эксплуатации

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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 re-
placed periodically. Use the life check function as a guidance of parts replacement.
Replacement years for when the yearly average ambient temperature is 40°C (without
corrosive gas, flammable gas, oil mist, dust and dirt etc.)
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 immedi-
ately.
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 Description
Cooling fan 10 years Replace (as required)
Main circuit smoothing capacitor
10 years
Replace (as required)
On-board smoothing capacitor 10 years Replace the board (as required)
Relays — As required
Tab. 8-4: Wearing parts
NOTE For parts replacement, consult the nearest Mitsubishi FA Centre.
NOTE
The FR-D720S-008SC to 042SC and the FR-D740-022SC or less are not provided with a
cooling fan.