PNP vs NPN EXPLAINED! Proximity Sensors on CNC Plasma Cutter Router Table

PNP vs NPN EXPLAINED! Proximity Sensors on CNC Plasma Cutter Router Table



Posting this video because it was really confusing to order a replacement sensor for my Baileigh PT-22 CNC Plasma table. Their wiring diagram shows the sensors, but doesn’t specify what kind they are. Being stubborn I opted to not call the manufacturer and figure it out myself instead.

If you need to order a new proximity limit switch for your CNC plasma, router, 3d printer, laser, or other kind of cutting table, hopefully this video helps!!

Here is a link to the two sensors I used in the video

NPN NO
https://amzn.to/2YtvoyO

PNP NO
https://amzn.to/3FrYgIF

For more Tips, Tricks, and Tools for the Home Metal Fabricator
go to: www.DIYMetalFabrication.com

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