I have mine setup using a c10 BOB set for pull down, and have mach3 set for active low, and my limit/home switches are NC. I have 5vdc at the BOB unless a limit is tripped, so of a wire breaks there is no voltage present at the BOB. So, wouldn't it be less safe if I set mine to active high? I don't understand why active high is safer, I am new to this and am missing something..... :drowning:

thanks
bill (likes being safer than sorry)