Quote Originally Posted by EddyCurrent View Post
at the top right is a setting for, 'Input Signal Debounce/Noise rejection', it will likely be set to zero, try entering a number to see if that helps, the general idea is to have the lowest number in there that works.
No don't do this unless you really have to.!! . . . . It's a last resort thing and you should find the cause first if possible. Which will be poor earthing or wiring.? . . . . I doubt it's that anyway if it's tripped all the time because noise doesn't do this it's an intermitant thing is noise and tends to happen while working or spindle running not stood still and mostly to affects limits more than home switches. If noise is affecting Home switches then you have a decent problem so needs fixing and de-bounce isn't the cure.!