Automatic Measurement; Trigger Input - Omron K7GE-MG User Manual

4 Functions Related to Measurement
4-1

Automatic Measurement

The K7GE-MG normally operates with automatic measurement. Automatic measurement is performed
in synchronization with the trigger signal.
The following describes the operation of automatic measurement.
4-1-1

Trigger Input

Trigger by an External Contact
The K7GE supports connecting the auxiliary
contact of the contactor that turns the power of the
load ON or OFF to the trigger input terminal.
In addition, it also supports control using the I/O
ports of the PLC, and the signal logic can be
reversed with the setting parameters.
Therefore, "trigger input ON" cannot simply
distinguish whether the trigger signal is an
external contact or a measurement start signal.
Thus, in this manual, trigger signal ON means enabled (measurement start signal is enabled) and
trigger signal OFF means disabled.
The table on the right shows the relationship
between the external contact, Trigger Signal
Reverse setting parameter, and trigger signal
connected to the trigger input terminal.
The auxiliary contact of the contactor is used as
the measurement start signal. The initial value of
the setting parameter is set so that the trigger
signal is turned ON (enabled) when the external
contact is turned OFF (contactor is turned OFF).
Observe that this manual describes the measurement start signal as a trigger signal rather than an external contact,
such as a time chart description.
4 - 2
K7GE-MG

Trigger input

terminal
MC-a
External contact
Trigger input circuit (conceptual diagram)
External Trigger Signal Reverse
contact setting parameter
OFF OFF (default value)
ON
ON OFF (default value)
ON
Insulation Resistance Monitoring Device User's Manual (N224)
Trigger signal
(to the microcomputer)
Trigger Signal Reverse
setting parameter
Trigger
signal
ON
OFF
OFF
ON