Omron K7GE-MG User Manual page 134

Insulation resistance monitoring device
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6 Remote Monitoring
If the contactor auxiliary contact is connected to the trigger input terminal of the K7GE-MG, (1) can
be determined from the trigger input contact bit (H'0003.B7*) = 0 in the K7GE-MG Status variables.
* Indicates bit 7 at the address H'0003 variable area.
(2) can be determined from the Operation Level bit (H'0003.B2) = 1 in the K7GE-MG Status
variables. If you execute the automatic measurement start command at a level other than Operation
Level such as Initial Setting Level, the operation error response will be returned from the K7GE-MG
and the command will not be accepted.
(3) can be determined from the manual measurement bit (H'0003.B4) = 0 in the K7GE-MG Status
variables. If you execute the automatic measurement start command during manual measurement,
the K7GE-MG will return the response of the operation error and the command will not be accepted.
(4) can be determined from the automatic measurement bit (H'0003.B3) = 0 in the K7GE-MG Status
variables. If you execute the automatic measurement start command during automatic
measurement, the operation error does not occur. The measurement operation in progress is
interrupted and a new measurement operation is started. As all the confirmed measurement values
up to that point are cleared, it is recommended that you wait until the series of measurement
operations is complete if automatic measurement is in progress.
Software Reset Command
The power ON reset process is executed in the same way as when the Reset Key on the Main Unit
front part is pressed.
A power ON reset puts the K7GE-MG in the same initial state as after the power is turned ON.
Refer to 4-6 Reset Key on page 4-25 for information on the operation when the Reset Key is pressed.
Unlike the Reset Key, the Software Reset Command can be accepted at levels other than the
Operation Level.
The Software Reset Command can be used in the following cases.
(1) To clear an alarm output after reading the measurement values and statuses.
(2) To stop automatic measurement that was started unintentionally.
(3) To forcibly return to the Operation Level from a level other than the Operation Level (such as the
Initial Setting Level) by remote operation.
(For example, if you leave the work site with the K7GE-MG still in the Initial Setting Level selected
by key operation, automatic measurement will not start at the time it should when the contactor
turns OFF as the K7GE-MG is not in the Operation Level.)
(4) To enable the new setting value after changing a setting parameter with the Write Variable Area
command.
The reason for (4) is that a power ON reset is required to enable the new setting values.
Also refer to 6-7 Changing (Writing) Setting Parameters on page 6-13.
6 - 10
Insulation Resistance Monitoring Device User's Manual (N224)

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