Omron 3G3RX Series, Руководство пользователя, Страница: 340 / 442

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 Meter
Daily
Periodic
1 year 2 years
General
Ambient
environment
Check ambient
temperature, as
well as humidity
and dust levels.
{
Refer to "2-1
Installation".
Ambient
temperature
10
°
C to 50
°
C,
no freezing.
Ambient
humidity 90%
max., no
condensation.
Thermometer
Hygrometer
Recorder
Entire device
Check that there
are no abnormal
vibrations or
sounds.
{
Visual or acoustic
inspection
No faults
Power
supply
voltage Check that the
main circuit
voltage is normal.
{
Measure the voltage
between Inverter
main circuit terminals
R/L1, S/L2, and T/L3. Must be within
allowable
fluctuation of
AC voltage.
Tester,
digital
multimeter
Main
circuit
General
Megger check
(between main
circuit terminal
and ground
terminal)
{
Disconnect the I/O
wirings of the Inverter
main circuit terminal
block, detach the
control terminal block
board, and remove
the short-circuit bar
used for switching the
Inverter built-in filter
function. Then, use a
megger to measure
the resistance
between the ground
terminal and the
short-circuited parts
of terminals R/L1, S/
L2, T/L3, U/T1, V/T2,
W/T3, P/+2, +1,
N/-, RB, Ro, and To.
5 M
Ω
min.
500 V DC
megger
*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 "
Appendix-2 Product Life Curve
" is based on the expected design
life, which is not guaranteed.