Cleaning; Replacement Of Parts - Mitsubishi Electric FR-F740 EC Instruction Manual

Inspection
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.
CAUTION:
E
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 (FR-DU07) and parameter unit (FR-PU04/
FR-PU07) are vulnerable to detergent and alcohol. Therefore, avoid using them for
cleaning.
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 character-
istics, 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
Fuse (04320 or more)
Tab. 8-5: Wearing parts
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
NOTE For parts replacement, consult the nearest Mitsubishi FA Centre.
8 - 8
Standard Replacement Interval
10 years
10 years
10 years
—
10 years
Maintenance and inspection
Description
Replace (as required)
Replace (as required)
Replace the board (as required)
As required
Replace the fuse (as required)