Manufacturers of electronic pressure switches often offer both pnp and npn switching outputs. Pnp switched positive npn switched negative switched refers to which side of the controlled load relay small indicator plc input is being switched electrically.
Pnp Sensor Vs Npn Sensor Difference Between Pnp Sensor Npn Sensor
Pnp wiring diagram. Some sensors have pnp and npn as well as no and nc output contacts. The faq section may have information that can help. The following is a wiring diagram of an open collector pnp sensor. This sensor is the ck1 00 2h capacitive proximity sensor. Here is a wiring diagram of a pnp sensor. The 0v blue will be attached to the common input and the switching wire black will be attached to the input number.
Gs 1 serial port terminal adapters. That is why we always have to refer to the manufactures wiring diagram. In our case the plc input will be our load. Wiring diagram for npn and pnp 3 wire sensors with the d2 16nd3 2 technotes product group. You will notice that the load appears between the 0v blue and switching wire black. 205 series information type.
Npnpnp 3wire sensorsvsd faq please refer to our tech support website for more info on sensors. 16 point dc input module last revised. Wiring diagram for ac inductive and photo type sensors with the d2 16na. When connecting to the plc the plc input acts as the load. Wiring diagram for npn and pnp 3 wire sensors with the d2 16nd3 2. Heres a simple way remember how to wire up a 3 wire dc pnp or npn sensor.
The box in the diagram represents the load. 15 feb 2002 document name. Either the load is connected to negative and the positive is switched pnp continue reading an easy way to remember pnp and npn sensor. Here is a brief explanation how the two different outputs should be connected. Connection diagram of pnp and npn transistor outputs for electronic pressure switches 10072011 jürgen reiser.