Omron K7GE-MG User Manual page 49

No.
5 The manual
measurement does
not start but the
main display part
flashes when the
Manual
Measurement Key
is pressed.
Even if MANU
indicator is lit, the
measured value is
not displayed.
6
The measurement value is significantly
different from the value measured by the
Megohmmeter.
7
The measurement
value is not
displayed on the
channel, but fail
is flashing.
Insulation Resistance Monitoring Device User's Manual (N224)
Problems
The Mode Key (
TRIG FIN
LVL
- - --- pressed for 3 seconds, which
3
resulted in measurement
CH
MANU ERR AGE
value display automatic scroll.
Manual measurement cannot
start during automatic scroll.
The measurement is aborted
TRIG FIN
because the safety function is
LVL
fail
3
activated. This function is
CH
MANU ERR AGE
enabled when the load is
turned ON or the insulation
resistance is detected
extremely low. If the load is
not completely stopped, it may
be determined that the load is
turned ON.
The Main Unit cannot
recognize the Probe Unit of
this channel. The Units may
not be connected properly.
It is possible that the manual
measurement was performed
with the electric charge
remaining on the wiring and
other parts.
The measurement for this
TRIG FIN
channel is stopped because
LVL
fail
2
either the load was turned ON
CH
MANU ERR AGE
during measurement, or the
K7GE-MG detected that the
insulation resistance is
extremely low.
The Main Unit cannot
recognize the Probe Unit of
this channel. The Units may
not be connected properly.
Cause
) was Press the Mode Key (
again for 3 seconds to cancel
Measurement Value Display
Automatic Scroll, and then
press the Manual
Measurement Key.
Make sure that the load is
completely stopped before
performing the manual
measurement.
Also, check the wiring
between the load, contactor,
and K7GE-MG again.
Check the connection
between the Units again.
The manual measurement
does not allow forced
discharge of electric charge.
In the same way as measuring
with a Megohmmeter, wait for
the charge to be completely
discharged before performing
manual measurement.
Check again that until the start
of automatic measurement,
the contactors of all loads turn
OFF, and all loads stop
completely within the time
period of the Motor Stop
Waiting Time setting
parameter.
Also, check the wiring
between the load, contactor,
and K7GE-MG again.
Check the connection
between the Units again.
2 Procedure
Correction
)
2
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