Thc150 proma mach3 z axis

hi
i work to make a plasma cutter with mach 3 and a proma thc150 controller
i have problem with z axis and thc 150, i can see the lights turn on,up,down are working in mach3 diagnostic but i have no move to z axis
i have enable the allow thc control and i also enable the thc on up down
the follwing photo is the xcircuit wich i work
any idea what is going wrong??
thx.