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No.
When
11
At manual
measurement
12
At manual
measurement
13
At manual
measurement
14
At manual
measurement
Insulation Resistance Monitoring Device User's Manual (N224)
Problems
The required channel does not
appear when the Mode Key
(
) is pressed to select the
channel for manual
measurement.
The manual
TRIG
FIN
LVL
measurement
----
3
does not start
CH
MANU
ERR
AGE
but the main
display part
flashes when the
Manual
Measurement
Key is pressed.
Even if MANU
TRIG
FIN
LVL
fail
indicator is lit,
3
CH
the measured
MANU
ERR
AGE
value is not
displayed.
The measurement value
changes significantly from
measurement to
measurement. Or, the
measurement value is
significantly different from the
value measured by the
Megohmmeter.
Cause
The channel numbers
Set the channel
and Maximum Number
numbers in the order 1,
of Channels setting
2, 3, and n. Also, set the
parameter of the Probe
Maximum Number of
Units may not be set
Channels setting
correctly.
parameter to the total
number of channels
(number of Probe
Units).
The measurement
Press the Mode Key
value display may be
(
) again for 3
automatically scrolling
seconds to cancel
because the Mode Key
automatic scroll.
(
) was pressed for 3
seconds.
Press the Mode Key
The Mode Key (
)
was pressed for 3
(
) again for 3
seconds, which resulted
seconds to cancel
in measurement value
Measurement Value
display automatic scroll.
Display Automatic
manual measurement
Scroll, and then press
cannot start during
the Manual
automatic scroll.
Measurement Key.
The measurement is
Make sure that the load
aborted because the
is completely stopped
safety function is
before performing the
activated. This function
manual measurement.
is enabled when the
Measure the insulation
load is turned ON or the
resistance of the load
insulation resistance is
on this channel with a
detected extremely low.
Megohmmeter. Also,
If the load is not
check the wiring
completely stopped, it
between the load,
may be determined that
contactor, and
the load is turned ON.
K7GE-MG again.
It is possible that the
The manual
manual measurement
measurement does not
was performed with the
allow forced discharge
electric charge
of electric charge. In the
remaining on the wiring
same way as measuring
and other parts.
with a Megohmmeter,
wait for the charge to be
completely discharged
before performing
manual measurement.
7 Troubleshooting
Correction
Reference
3-2
Installation on
page 3-3
5-3 Maximum
Number of
Channels on
page 5-6
4-1-5
Measurement
Value Display
Automatic
Scroll on page
4-16
4-2 Manual
Measurement
on page 4-17
7 - 5
7
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Table of Contents
Troubleshooting
