I'm using LJ12A3-4-Z/BX NPN 3 wire Proxy Switches for my new Avid CNC 4848.
The Proxy Switch signal wire (on 12v source) puts out 12v constant and when triggered drops to 0.68v,
My BOB has 4 external inputs (estop,limits etc) that set at 5v (high) so I assume I need to ground these when the limit switch is triggered.
How do I get the proxy switch to ground the 5v and how do I protect the BOB from the 12v input when it's not triggered?
TIA