I have a small CNC machine made by Zenbot in the US, it has a Mechatronics 3 Axis controller and workss fine.
I would like to add a touch plate to the system but I'm not sure how to wire it. I have the manual for the controller but it mentions not to attach the ground wire to the wrong connector, which has me puzzled.
I've attached two images from the manual and I would be grateful if anyone has an idea where to attach the ground for the touch plate. I was thinking of using pin 15 for the positive side.
Thanks in advance,
Joe.