homming set up

[hoopy]

Thanks for getting back to me sorry info i have is BSMCEO4U-pp
its a mach3 breack board NO DATA SHEET with it
also mila amz limit lever switchs ME-8108 Rating:
5A 250V AC / 0.4A 115V DC
Contact Configuration: 2NC + 2NO
Momentary Actuator Action
Package Content : 1 x ME-8108 Limit Switch + 1 x ME-8104 Limit Switch
i am using input 2 for auto tool it works ok
i am using input 3 for limit switch works ok
i am using input 4 for homing when makes contact switch lights up motor does not stop or reverse