Connecting Pnp Sensors (For Any Input) - CNC4PC C25S User Manual

Where:
V is the external power supply voltage
EX
V is the voltage across the R resistor
A voltmeter is required to calculate the internal resistor value (Rx). Do the connection as
are shown in the figure above and do the calculations using the equation (1).
Note. R value has to be known to do this operation. A 4.7KOhm@1/2W is
recommended.
For example, if you are using a 12V power supply (V ), and use a 4.7KOhm as
EX
external resistor (R), and the voltage across R is 6V, using the equation 1, the Rx
value is 4.7KOhm.
5.3

Connecting PNP sensors (For any input)

Wiring diagram to connect PNP proximity sensors
Connecting PNP proximity sensor with the C25
R Value (12V) R Value (24V)
Aprox. 10KΩ Aprox. 25KΩ
User's Manual
Page 6