I am wiring the same basic machine as you ..worked on it today got the plug to the board wired to plugs on the back of the control box and got x limits done and working ... with the board they give you it will have to be wired normally open .. I wired in two micro switches left / right limit to the board and am planning on the same for Y ... the odd thing on my board was X was pin 12 when I set it up ..