Alarm Values 1 And 2 - Omron K7GE-MG User Manual

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Alarm Values 1 and 2

Level
Initial Setting
Set the ALM 1 output and ALM 2 output alarm threshold values. Set the warning level value as Alarm
Value 1 and the critical level value as Alarm Value 2.
If there are rules in the company, set that value in alarm value 2. Set alarm value 1 to a value between
the normal value that is known from daily inspections and alarm value 2.
If there are no rules in the company, set alarm value 2 to 1 MΩ, which is generally regarded as the error
threshold in IEC 60034-1 and by motor manufacturers. Set alarm value 1 to a value between the
normal value that is known from daily inspections and alarm value 2.
Alarm value 1 is a single value common for all channels. Similarly, alarm value 2 is a single value
common for all channels.
If the measurement value becomes equal to or less than alarm
value 1, the ALM 1 output turns ON* and the alarm output
indicator turns yellow. If the value becomes equal to or less than
alarm value 2, the ALM 2 output turns ON and the alarm output
indicator turns red.
* If the setting value of the Alarm Polarity setting parameter is n-c (normally close),
the alarm outputs turn ON and the output transistor contacts turn OFF.
It is possible to reverse the alarm value 1 and alarm value 2
settings, but note that the alarm output indicator will not turn
yellow in this case.
The operation procedure for the Alarm Value 1 setting parameter is shown as follows:
Procedure
1.
Press the Level Key for at least 3 seconds in the Operation
Level to move to the Initial Setting Level.
•
The LVL/CH display will indicate 0, and the LVL indicator will light
to show that the Initial Setting Level has been entered.
Insulation Resistance Monitoring Device User's Manual (N224)
Range of setting
Characters
values
0.0 to 99.9 (MΩ)
alm1
0.0 to 99.9 (MΩ)
alm2
5 Using Setting Parameters
Default value
20.0 ALM 1 output alarm threshold value
(warning)
1.0 ALM 2 output alarm threshold value
(critical)
Measurement
value (MΩ)
Alarm Value 1
Alarm Value 2
Measurement
value (MΩ)
Alarm Value 2
Alarm Value 1
Description
Alarm output
ALM 1 ALM 2
ALM 1 ALM 2
ALM 1 ALM 2
Alarm output
ALM 1 ALM 2
ALM 1 ALM 2
ALM 1 ALM 2
TRIG FIN
3 seconds
LVL
mxch
0
MANU ERR AGE
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