Hynade CUT60DN which pins

So about to hook up the Hynade CUT60DN to the ArcDroid and its not clearly obvious whether i should use pins 1,2 labeled start control signal input or pins 3/4 arc control signal output? Seems like the output but I definitely don’t want to mess anything up on day one. My guy feeling is 3/4 ?

Thanks for any help.

Hey there

You want pins 1/2 . 3/4 are output for some CNC systems that require a “The Arc has started” acknowledgement


Thank you . I am glad i asked!

1 and 2 its just a little small