Omron RX User Manual page 334

6-1 Inspection and Maintenance
Inspection Inspection
part item
Control
circuit Operation
Protection check
circuit
6
Cooling fan
Cooling
system
Fin
Display
Display
Meter
*1. The life of the smoothing capacitor depends on ambient temperature.
Refer to "Appendix-2 Product Life Curve" for the replacement reference.
*2. The life of the cooling fan varies depending on the environmental conditions, such as ambient temperature
and/or dust. Check the operation through daily inspections.
*3. The replacement reference (year/cycle) or "
life, which is not guaranteed.
6-5
Inspection period
Inspection point Periodic
Daily
1 year 2 years
Check the balance
of output voltage
levels between
phases in single
Inverter run.
Check that there
are no errors in
protection and
display circuits
through sequence
protection
operation.
Check that there
are no abnormal
vibration or
sounds.
Check that the
connection parts
are secure.
Check that there is
no clogging.
Check that the
LED indicators are
lit properly.
Cleaning
Check that the
indicated value is
normal.
Appendix-2 Product Life Curve
Inspection method Criteria
Phase-to-phase
Measure the voltage
voltage balance
between Inverter
200-V class:
main circuit terminals
4 V max.
U/T1, V/T2, and
400-V class:
W/T3.
8 V max.
Short-circuit or open
the Inverter protection Error is found in
circuit output under the sequence.
simulated conditions.
Rotates
Rotate manually
smoothly.
when the power is off.
No faults
Reference of
the replacement
period: 10 years
Visual inspection
*2 *3
Visual inspection No clogging.
Check that the
Visual inspection LED indicators
are lit properly.
Clean with a soft
cloth.
The specified or
Check the indicated
control values
values on the panel
must be
meters.
satisfied.
" is based on the expected design
Meter
Digital
multimeter
Rectifier
Voltmeter
Voltmeter,
ammeter