Before I start; I'm completely aware that the powermax30 air is not a very suitable plasma for CNC/plasmacam. This is just what I was given from the owners when our last one went out. I wired it the same way. Splicing in to the purple trigger wire for low voltage, and red 2 white/ black 2 work on the board for high voltage. It will not engage in any way at all. Basically my question is; is there a communication I'm missing to the on board compressor? I feel like that only possible thing it could be is that I don't have proper communication with just the trigger wire to tell the compressor to kick on; so nothing kicks on. If someone could save me a week of stress and tell me if I'm heading in the right or wrong direction I'd sure appreciate it.