15
© Panasonic Industriar Devices SUNX Co., Ltd. 2016
2-4-2 I/O Circuit Diagrams
Manual / Auto reset can be selected by the wiring of the reset input terminals (X1, X2, and X3).
●
For operation with PNP output
●
For operation with NPN output
KA and KB are external devices (forced guide relay, magnet contactor or monitored valve).
Wiring
<Reference>
<Manual reset>
Back check circuit
is required.
Reset
KA
KB
X1 X2 X3
Back check circuit
is not required.
Reset
X1 X2 X3
<Auto reset>
Back check circuit
is required.
KA
KB
X1 X2 X3
Back check circuit
is not required.
X1 X2 X3
<Reference>
Test input
Reset
KA
KB
0V
24V DC
PLC etc.
Control
circuit
Control output polarity selection switch
Non-safety output polarity selection switch
Sensor 1
Sensor 2
Sensor 3
Sensor 4
Safety liquid leak
sensor
PNP output type
SQ4-A□-P
KA
KB
Reset
KA
KB
Control output polarity selection switch Test input
24V DC
PLC etc.
Control
circuit
Non-safety output polarity selection switch
Sensor 1
0V
Sensor 2
Sensor 3
Sensor 4
Safety liquid leak
sensor
NPN
output type
SQ4-A□-N
KA
KB
