home switches

[scotprop]

Hi I am a newbie with the cnc thing I am setting up my machine I have everything working until I tried setting up home/limit switches. I have 3 NC switches wired in series with one end (com) going to post 1 on my g540 which is pin 10 and the other going to my DC-. My ports and pins in mach3 are set set correctly but when I go to the diagnostic tab The m1 m2,m3 home leds do not light when I activate a switch. If I go back into port/pin-imput signals and unclick active low all the leds light up but are not effected when I activate a switch. I must be missing something But I am stuck Any ideas would help
Thanks

[Hood]

Do you have the port number entered for the limits? If you do attach your xml and I will check your config.
Hood

[scotprop]

Ok thanks for the reply OK I have rechecked everything but I will recheck again