Pnp Sensor Circuit Diagram. The operation of this circuit is very simple if the input pin of transistor base is connected to ground i e. Below is the circuit for connecting a pnp transistor which can function as a switch or an amplifier.
This establishes power to the sensor. You will notice that the load appears between the 0v blue and switching wire black. The following is a wiring diagram of an open collector pnp sensor.
Here s a simple way remember how to wire up a 3 wire dc pnp or npn sensor.
Pnp switched positive npn switched negative switched refers to which side of the controlled load relay small indicator plc input is being switched electrically. Here s a simple way remember how to wire up a 3 wire dc pnp or npn sensor. The operation of this circuit is very simple if the input pin of transistor base is connected to ground i e. You will notice that the load appears between the 0v blue and switching wire black.
