Omron K7GE-MG User Manual page 80

4 Functions Related to Measurement
Timing Chart for Measurement Failure
The operation when measurement fails during automatic measurement is described using a specific
example.
The configuration and initial settings are as follows:
•
Connect the output contact of the PLC to the
trigger input terminal
•
Connect three Probe Units
•
The channel number setting of each Unit is
channel 1, 2, and 3 from the left
•
Set the setting value of the Maximum Number
of Channels setting parameter to 3
•
Set the setting value of the Trigger Signal Reverse setting parameter to ON
Load (motor) CH1
Load (motor) CH2
Load (motor) CH3
PLC contact
Trigger signal
Measurement operation
Status output during
measurement
MEAS indicator
ALM 1, ALM 2 output
Alarm output indicator
ALM indicator
Main display
(1) Start automatic measurement
The trigger signal turns ON when the PLC contact changes from
OFF to ON*, and measurement starts.
* When the setting value of the Trigger Signal Reverse setting parameter is ON
The following parts operate simultaneously with the start of
automatic measurement.
• Status output during measurement turns ON
• TRIG indicator is lit on the measurement step indicator
• The countdown until the measurement completes for
channel 1 is displayed on the main display part
Measurement is performed for channel 1 after motor stop
standby.
When measurement starts, the MEAS indicator on the Probe
Unit of channel 1 turns ON, which indicates that measurement is
in progress.
4 - 12
OFF
OFF
OFF
ON
ON
Motor stop
CH1 CH2 CH2
standby
ON
OFF
CH1 CH2 CH2
OFF
CH1 CH1
OFF
CH1 CH1
OFF
CH1 CH1
----
Countdown C/D C/D
CH1 CH2 CH2
(1) (2) (2)
Insulation Resistance Monitoring Device User's Manual (N224)
PLC
CH3 CH3
OFF OFF
CH3 CH3
ALM 1, ALM 2 ON ALM 1, ALM 2 ON
Lit red Lit red
+CH2 ON +CH2 ON +CH3 +CH3
C/D C/D CH2 CH2
fail flashes fail flashes
CH3 CH3
(3) (3) (4) (4)
Measurement Measurement
failed failed
Trigger input
(1) (2) (3)
Motor stop Motor stop
CH1 CH1
standby standby
CH1 CH1
OFF OFF
OFF OFF
OFF OFF
Countdown Countdown
CH1 CH1
(5) (5)
MEAS MEAS MEAS
TRIG FIN
LVL
--91
1
ALM ALM ALM
CH
CH1 CH2 CH3
MANU ERR AGE
ALM 2
ALM 1
MEAS MEAS MEAS
TRIG FIN
LVL
--81
1
ALM ALM ALM
CH
MANU ERR AGE CH1 CH2 CH3
ALM 2
ALM 1