Originally Posted by
kolias
My new cnc was working fine, I did 3 sample cuts and all turned out perfect. Then I decided to re organize the limits wiring on my C11G BOB which were kind of “messy” and since I got just headaches.
I have a total of 7 limit switches and 4 are also used for Homing. Each limit/Estop/Probe all working good but the problem starts when I try to Home. I click in Ref X and it works good, Click on Ref Z and that works good too but when I click on Y it says “Homing Y and Slave A” and soon it finish Homing the message says “Limit switch triggered” and I can’t back out despite that the “Auto limit Override” is ON.
Another message I get instead of the “Limit switch triggered” is “Limit switch is active, solve the problem and try again”
It’s a puzzle for me because I tried re wiring the limits in every way I can think and I can’t find the solution.
Any ideas where to look for a solution?
Thanks
Run each pair of limit switch wires back to controller and don't save wires by connecting common grounds at switches. Any common ground points should be right near/at the controller. If the wires are shielded (as they should be), only ground the shield(s) at the controller end. If wires go through metal case connectors do not connect any wires to the case of the connector. If it needs an earth wire, run it back to your single common ground, but if the plug/socket is mounted to a metal case do run a ground wire, as this can cause unexpected currents in your ground system. NEVER save a wire by running currents through metalwork cases, etc.
Super X3. 3600rpm. Sheridan 6"x24" Lathe + more. Three ways to fix things: The right way, the other way, and maybe your way, which is possibly a faster wrong way.