Omron 3G3JX

6-3
6-1 Inspection and Maintenance
6
Inspection and Maintenance
Daily Inspection and Periodic Inspection
Inspection
part
Inspection
item
Inspection point
Inspection
period
Inspection
method
Criteria
Standard
replacement
period
Meter
Daily Periodic
General Ambient
environment
Check ambient
temperature, as well
as checking for
humidity, dust,
hazardous gases, oil
mist, etc.
3 Monitoring,
visual
inspection
Ambient
temperature
-10°C to +40°C
With no freezing
Ambient humidity
20% to 90%
With no
condensation
Thermometer
Hygrometer
Entire device Check that there are
no abnormal vibrations
or sounds.
3 Visual or
acoustic
inspection
⎯
Power supply
voltage
Check that the main
circuit voltage is
normal.
3 Voltage
measureme
nt between
terminals R/
L1, S/L2
and T/L3 on
the Inverter
terminal
block.
The following
conditions must be
satisfied:
(200-V class)
200 to 240 V
50/60 Hz
(400-V class)
380 to 480 V
50/60 Hz
Tester
Main
circuit
General Insulation resistance
test
(between main circuit
terminal and ground
terminal)
3 Megger
check
(Refer to 6-
2.)
5 M Ω min. 500 V DC
megger
Check that the screws
are not loose.
3 Tighten
securely
Tightening torque
(excluding
terminal block)
• M 3.5: 0.8 N•m
• M 4 : 1.2 N•m
• M 5 : 3.0 N•m
⎯
Check that no part has
indications of
overheating.
3 Visual
inspection
Terminal
block
Check that there is no
damage.
3 Visual
inspection
No faults
Smoothing
capacitor
Check that there is no
liquid leakage.
Check that the safety
valve has not come
out.
Check that there are
no bulges.
3
3
3
Visual
inspection
No faults
*1
*1. The life of the capacitor depends on ambient temperatures. Refer to the product life curve in Appendix-2.
When the capacitor stops operating at the end of the product's life, the Inverter must be replaced.
*2. Clean the Inverter periodically. Accumulated dust in or on the cooling fan or heat sink can cause the Inverter
to overheat.