I have set up a CNC Router with a PMDX-126 BOB and ESS motion controller. I am trying to connect NPN-normally-closed (6v-30v) inductive proximity sensors as limit switches on connectors J11 & J12. I have them wired to pins 11, 12, 13 & 15 powered by the 12v ports on J11 & 12. I had to add resistors due to the “current leaking” from the NPNs’ signal wires to the corresponding +5v ports for each connector. That allowed me wire them up and successfully run the machine without tripping the limit switches so long as they were not close to the motors; however, when I went to mount the switches they went off as soon as they were anywhere near the motors. Is there any way to modify or adjust that? Does that have to do with “noise” from the motor or the sensitivity of the sensors or both or neither? Also I noticed that when they are activated, they don’t stop the machine, they just kept me from entering another command.
