Omron RX2 Series User Manual page 799

Target
Item
section
General
Connected
Main
conductor and
circuit
wire
Terminal block
Inverter
Converter
(including
resistor)
Smoothing
capacitor
Relay
High-function General-purpose Inverter RX2 Series User's Manual
Interval
Periodic
Details
Daily
1
year
(1) Megger check
(between the
main circuit termi- ○
nals and earth
terminals)
(2) Fastened por-
tions are not ○
loosened.
(3) No residual
mark of overheat
○
is observed on
each component.
(1) The conductor
○
is not distorted.
(2) The coatings
of wires are not ○
torn.
It is not
○
damaged.
Check
resistance
between each
terminal
(1) There is no
○
leakage of fluid.
(2) The belly
(safety valve)
shall not stick ○
and there shall
be no bump.
(1) There shall be
no beat noise ○
during operation.
(2) There are no
○
worn contacts.
13 Maintenance and Inspection
Method
2
years
Remove the
input/output wires of
main circuit terminal
block of the inverter,
remove the control
terminal block board,
then, remove the
short bar for switch-
ing the functions of The measured value
filter included in the shall be 5 MΩ or
inverter. Then, using above.
a megger, perform
measurement
between each por-
tion where R, S, T,
U, V, W, P, PD, N,
RB, R0, and T0 ter-
minals are shorted
and earth terminal.
Re-tighten the There must be no
portion. abnormality.
There must be no
By visual check.
abnormality.
There must be no
By visual check.
abnormality.
There must be no
By visual check.
abnormality.
Remove the wires of
See 13-5-3 Checking
the main circuit ter-
Method of Inverter
minal block of
and Converter on
inverter, and perform
page 13-10
measurement
Appropriate replace-
between terminals
○
ment interval of
R, S, T and termi-
inverter, converter,
nals P, N, and
and thyristor
between terminals
U, V, W and termi-
Start/stop: 10
nals P, N at the
*1
range of tester ×1 Ω.
There must be no
abnormality.
Appropriate service
By visual check.
years for replace-
ment: 10 years
There must be no
By hearing.
abnormality.
There must be no
By visual check.
abnormality.
Mea-
sure-
Criteria ment
instru-
ment
500-VDC
class
megger
.
Analog
tester
6
cycles
*1 *2 *3
13 - 5
13