I have a NX100 controller on a HP20-6 robot setup for weld. It has not ran production for a few months. We have recently started to get it going again, but have an issue with the weld gas not releasing. I will look for the alarm # tommorrow. I know that we have traced it back to missing a 37.5 volt signal that comes out of the U-Axis connector. The wire is connected back in the controller boards, but without any output. Not sure if I should be checking boards, weld cycles or wires.
Thanks Again,
Dan