Welcome to Our Community

Some features disabled for guests. Register Today.

Inverting limit switches and pull down resistors

Discussion in 'CNC Mills/Routers' started by pappydan, Oct 4, 2016.

  1. pappydan

    pappydan Journeyman
    Builder

    Joined:
    Jul 29, 2016
    Messages:
    46
    Likes Received:
    23
    I understand that the limit and homing switches work better if they are wired as normally closed instead of normally open. The wiki on the cnc xpro v2 board states that a pull down resistor needs to be in the circuit to keep from burning out the limit switches. My question is would a heavy duty switch negate the need for the pull down resistor. If not, what size resistor needs to be in the circuit.My Z axis worked fine without inverting the limit switch but when I installed the limits on the Y axis I kept getting alarms.
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice