Omron EasySpeed 3G3JE, User Manual

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Chapter 4
4-12
Maintenance Operations
4-3 Maintenance and Inspection
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Daily Inspection
Check the following items with the Inverter in operation.
• The motor must not be vibrating or making unusual noises.
• There must be no abnormal heat generation.
• The output current value shown on the monitor display must not be higher than normal.
• The cooling fan must be operating normally. (This applies only to Inverter models that have a cool-
ing fan.)
■
Periodic Inspection
Check the following items during periodic maintenance.
• The terminal screws of the Inverter must not be loose.
• There must be no conductive dust or oil mist on the terminal block or inside the Inverter.
• The mounting screws of the Inverter must not be loose.
• No dust must be accumulating on the vents of the Inverter.
• There must be no abnormalities in the outward appearance of the Inverter.
• The control panel cooling fan must be operating normally.
■
Periodic Maintenance of Parts
The Inverter is configured of many parts, and these parts must operate properly to make full use of
the Inverter's functions. Among the electronic components, there are some that require maintenance
depending on their usage conditions. 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.
(Taken from the JEMA publication Recommended Periodic Inspections of General-purpose Invert-
ers .)
Periodic inspection standards vary with the installation environment and usage conditions of the
Inverter. To lengthen the maintenance period, it is recommended that you lower the ambient temper-
ature, and minimize the time during which the power is ON. The maintenance period of the Inverter is
described below. Keep this as reference.
Note For details regarding maintenance, consult your OMRON representative.
• Cooling fan: 5 years
Usage Conditions (When mounted as described in the User’s
Manual)
Ambient temperature 40
°
C
Load ratio 80%
Operating time per day 12 hours