3 wire PNP and NPN sensor wiring with contector show in Picture above
3 wire PNP and NPN sensor wiring with PLC show in Picture above
PNP Wiring :
This is sometimes referred to as sourcing (+24VDC) the load or positive switching. The black wire of our sensor is connected to the PLC input. The common point of the PLC input and the blue wire is connected to the 0VDC supply. The brown wire of our sensor is connected to the 24VDC supply. You can see in above Picture the proximity switches/sensor connects the load to 24VDC.
NPN Wiring :
This is sometimes referred to as sinking (0VDC) the load or negative switching. The black wire of our sensor is connected to the PLC input. The common point of the PLC input and the brown wire is connected to the 24VDC supply. The blue wire of our sensor is connected to the 0VDC supply. You can see in above Picture the proximity switches/sensor connects the load to 0VDC.
3-wire DC PNP or NPN sensor:
PNP = Switched Positive
NPN = Switched Negative