Here is a wiring diagram of an npn sensor. This classification is based on the type of output circuit and the output voltage.
Inductive Sensor Operating Principles
Npn proximity sensor wiring diagram. You will notice that the load appears between the v brown and switching wire black. Pnp switched positive npn switched negative switched refers to which side of the controlled load relay small indicator plc input is being switched electrically. Classification by output circuit. In our case the plc input will be our load. Industrial sensors of all types have connection diagrams. The box in the diagram represents the load.
When an object is placed near the sensor the output device turns on. Heres a simple way remember how to wire up a 3 wire dc pnp or npn sensor. The following is a wiring diagram of an open collector npn sensor. The v brown will be attached to the common input and the switching wire black will be attached to the input number. In this video i demonstrate an npn inductive proximity sensor circuit. Wiring diagrams show the hook up offour sensors with npn and pnp outputs.
Either the load is connected to negative and the positive is switched pnp continue reading an easy way to remember pnp and npn sensor. When connecting to the plc the plc input acts as the load. Photoelectric sensor works on ir principle and this sensor has 4 wireno and nc in sensor has also been explained4 wire sensor has both no and nc operating mode in it. This sensor is the ck1 00 2h capacitive proximity sensor. Inductive proximity sensor cutaway with annotation. 3 wire and 4 wire dc.
Gallery of Npn Proximity Sensor Wiring Diagram
