Installation and Wiring
4.3
Wiring Input and Output
4.3
Wiring Input and Output
4.3.1
Input Wiring
Before the wiring, carefully confirm the specifications for the units to be wired. Specifi-
cally, limitations on the ambient temperature and number of points that can be on
simultaneously will differ for different units.
Connection of Sensors
Relay output type
Sensor
Relay
Internal
circuit
Power supply
Power supply
for sensor
for input
Voltage output type
Vcc
Output
Sensor
0V⊖
Internal
circuit
Power supply for input
PNP open collector output type
Sensor
Internal
circuit
Power supply for input
4 − 18
Input terminal
COM DC Input
unit
Input terminal
DC Input
unit
COM
Input terminal
DC Input
unit
COM
NPN open collector output type
Vcc
Output
Sensor
0V⊖
Internal
circuit
Power supply for input
Two-wire type
Sensor
Internal
circuit
Power supply for input
FP2/FP2SH
Input terminal
DC Input
unit
COM
Input terminal
DC Input
unit
COM