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• No dirt or dust should be accumulating on the radiation fin.
• No dust should be accumulating on the vents of the Inverter.
• There should be no abnormalities in the outward appearance of the Inverter.
• There should be no unusual noises or vibration and the accumulated operating time should not
exceeded the specifications.
H Periodic Maintenance Parts
The Inverter is configured of many parts, and these parts must operate properly in order to make full use
of the Inverter’s functions. Among the electronic components, there are some that require maintenance
depending on their usage conditions. In order to keep the Inverter operating normally over a long period
of time, it is necessary to perform periodic inspections and replace parts according to their service life.
Periodic inspection standards vary with the installation environment and usage conditions of the
Inverter.
The maintenance periods of the Inverter are described below. Keep them as reference.
Maintenance Periods (Reference)
S Cooling fan: 2 to 3 years
S Electrolytic capacitor: 5 years
S Fuse: 10 years
The usage conditions are as follows:
S Ambient temperature: 40_C
S Load factor: 80%
S Operation: 8 hours per day
S Installation: According to instructions in manual
It is recommended that the ambient temperature and power-on time be reduced as much as pos-
sible to extend of the life of the Inverter.
Note For details regarding maintenance, consult your OMRON representative.
H Replacement of Cooling Fan
If the FAN fault is displayed or the cooling fan needs replacement, take the following steps to replace it.
Maintenance Operations Chapter 8
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