3 Wire Proximity Sensor Connection To Plc

For a polarized device like the photoelectric sensor care must be taken to connect the positive wire red wire to 24vdc and the black wire to the negative terminal plc input card connection.

3 wire proximity sensor connection to plc.

For example we will reference an inductive proximity sensor. But the signal output wire of proximity sensor must be connected to the signal input point of plc so when a npn proximity sensor is connected the signal flows. You will also learn what a 3 wire discrete sensor is and recognize some of the common types of 3 wire discrete sensors. Instead of using a plc to construct a working electrical circuit for a certain application making use of a traditional wiring method is also a mutually exclusive choice which is another workable option when a plc is not available.

Other examples of a load could be a relay or machine alarm just make sure the load rating of the sensor is not exceeded. 2 wire dc pnp 2 wire dc npn 3 wire dc pnp and 3 wire dc npn cases have been covered in this discussion. Pnp switched positive npn switched negative switched refers to which side of the controlled load relay small indicator plc input is being switched electrically. Knowing how to connect a 3 wire dc solid state proximity sensor to a plc programmable logic controller is dependent on the type of proximity sensor and the plc to be used that is specific to the design of the circuit and the preferred application.

Three wire sensor in plc three wire sensor connection in plc. Connecting a 4 wire dc sensor is the same as a 3 wire sensor but each output wire is connected to a different input on the input card. The box in the diagram represents the load. In this blog post you will learn how to wire a 3 wire dc sensor like an inductive proximity sensor to a plc input card.

Here is a wiring diagram of a pnp sensor. Here s a simple way remember how to wire up a 3 wire dc pnp or npn sensor. There are two basic types of 3 wire proximity sensor applicable to certain types of plc. If we connect the photoelectric switch to plc input channel 3 the red wire will be connected to 24vdc and the black wire will be connected to.

The connection of a proximity sensor to an electrical circuit is not limited to only one possibility. The most common type of load would be a plc programmable logic controller dc input. In our case the plc input will be our load. A typical 3 wire dc sensor s output has a rating of 100ma to 200ma.