Omron SYSDRIVE RX Series User Manual page 342

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 temperatures.
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
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
vibrations 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
Periodic Inspection method
Measure the voltage
between Inverter
main circuit terminals
U/T1, V/T2, and
W/T3.
Short-circuit or open
the Inverter protection
circuit output under
simulated conditions.
Rotate manually
when the power is off.
Visual inspection
Visual inspection
Visual inspection
Clean with a waste
cloth.
Check the indicated
values on the panel
meters.
" is based on the expected design
Criteria Meter
Phase-to-phase
voltage balance
200-V class:
4 V max.
400-V class:
Digital
8 V max.
multimeter
Rectifier
Voltmeter
Error is found in
the sequence.
Rotates
smoothly.
No faults
Reference of
the replacement
period: 10 years
*2 *3
No clogging.
Check that the
LED indicators
are lit properly.
The specified or
control values Voltmeter,
must be ammeter
satisfied.