Omron K7GE-MG User Manual page 155

No. When
5 At power ON
6
Automatic
measurement in
progress
7
After completion
of the automatic
measurement
Insulation Resistance Monitoring Device User's Manual (N224)
Problems
The auxiliary contact of the
contactor is connected to the
trigger input terminal. The
K7GE-MG power was turned
ON while the contactor was
OFF, but automatic
measurement does not start.
trig flashes
TRIG FIN
LVL
and both ALM 1
trig
1
and ALM 2 CH
MANU ERR AGE
outputs turn ON.
→ Measurement
is aborted.
The
TRIG FIN
LVL
measurement
fail
2
CH
value is not
MANU ERR AGE
displayed on the
channel, but
fail is flashing.
Both ALM 1 and
ALM 2 outputs
are ON.
→ Measurement
failed for this
channel.
Cause
The K7GE-MG starts This operation
automatic measurement specification prevents
at the time when the automatic measurement
external contacts of the from starting
trigger input terminal unintentionally. After
turn from ON to OFF* turning ON the
after the power is turned K7GE-MG power, turn
ON. Measurement does the external contacts
not start if the contacts from ON to OFF*.
are already OFF when
the power is turned ON.
* When the setting value of the Trigger Signal
Reverse setting parameter is OFF.
Measurement started Review the entire
due to the external system so that the
contacts of the trigger external contacts
input terminal, but the remain OFF* during the
external contacts turned measurement.
ON* before the
measurement was
completed. If the
auxiliary contact of the
contactor is connected
to the trigger input
terminal, the load was
restarted during the
measurement.
* When the setting value of the Trigger Signal
Reverse setting parameter is OFF.
The load connected to Increase the setting
this channel may not value of the Motor Stop
have completely Waiting Time setting
stopped when parameter so that
measurement of the measurement starts
channel started. after the load
completely stops.
The load on this Review the entire
channel may have system so that the load
turned ON during the does not turn ON during
measurement. the measurement.
The measurement for Measure the insulation
this channel is stopped resistance of the load
because the K7GE-MG on this channel with a
detected that the Megohmmeter.
insulation resistance is
extremely low.
No Probe Unit exists on Check that the channel
this channel. numbers of the Probe
Units are correctly set to
consecutive numbers
starting from 1.
The Main Unit cannot Check the connections
recognize the Probe between the Units
Unit of this channel. The again.
connectors are not
mated properly between
the Units.
If there is no It is necessary to
improvement in perform repair work.
operation, the Probe Contact your OMRON
Unit may have a representative.
hardware failure.
7 Troubleshooting
Correction Reference
4-1-4 Timing
Charts on
page 4-8
4-1-3
Measurement
Step Indicator
Operation on
page 4-7
3-3 Setting
the Channel
Number on
page 3-6
3-2
Installation on
page 3-3
5-3 Maximum
Number of
Channels on
page 5-6
-
7 - 3
7