From the course: Input Sensors with PLC: Sinking and Sourcing

Unlock the full course today

Join today to access over 24,900 courses taught by industry experts.

Wiring an NPN device to a PLC sourcing input module

Wiring an NPN device to a PLC sourcing input module - Ladder Logic Tutorial

From the course: Input Sensors with PLC: Sinking and Sourcing

Start my 1-month free trial Buy for my team

Wiring an NPN device to a PLC sourcing input module

“

- [Instructor] Now let's look at an example of connecting a three-wire NPN sensor to a sourcing module. The PLC is an Allen-Bradley Micro820. For this PLC, the input pins are shown here, the ones on the top. And the sourcing input pins, input 4 to input 11, here, show the wiring diagram of a three-wire NPN device. This photo electric sensor from Omran is a good example of NPN device. This is a three-wire sensor, and the wiring diagram is shown in the manual. Now the same thing applies for any three-wire NPN sensor, that is brown and blue are power wires, and black is a signal status wire that goes to a digital input. These diagrams show the general layout of how to connect NPN device to a sourcing module using the NPN sensor wiring diagram from the manual. The black wire is the signal wire that is connected to the load, which is the input pin of the sourcing input module. The blue wire is a power wire that goes to the…

Contents