Cnc plasma cutting problems

[Rambozo]

I don't know if I mentioned this earlier but when I turn the machine on in the 2t setting ( using the machine torch ) it fires the plasma right away an doesn't shut off until I either switch it to the 4t setting or actually shut the machine down. I feel like I've narrowed it down to something is wrong with the machine torch wiring but still not sure what. I'm hoping I can figure this out today but if not I will be calling everlast tomorrow. Please keep the ideas rolling

No I don't think you did mention that. It sheds some light on what you have, too. If it fires all the time on 2T then somehow it is wired to short pins 1 and 2. The safety pins should be wired in series to the trigger (1 & 2) pins so they both have to be completed to fire. It sounds like your setup might be wired in parallel so either will fire. I'm not sure if this is something you can fix by making changes to the torch wiring. You should have the safety hooked up even on a machine torch. It sounds like you will have to investigate the pinout of the plug to see if you can correct this with torch wiring alone.

[FeddFab]

Ok so after dissasembling both torches and testing different circuits with an ohm meter for an hour I finally got some success, the hand torch would work with a open circuit, but as soon as I closed the circuit ( held down the trigger ) and tried to fire the plasma via computer it would not fire. So that told me that it would only work on the machine torchif the circuit was open and it was, the safety pins was making a close circuit and not allowing the computer to fire the plas. So what I did to test this is pulled one of the pins on the euro connection and tested it and sure as #### it worked! I don't know why it's wired like this but I'm still going to call everlast tomorrow and see what they say but I DO have the machine torch functioning. Let me know what you guys think and thanks for your input !

[Rambozo]

Ok so after dissasembling both torches and testing different circuits with an ohm meter for an hour I finally got some success, the hand torch would work with a open circuit, but as soon as I closed the circuit ( held down the trigger ) and tried to fire the plasma via computer it would not fire. So that told me that it would only work on the machine torchif the circuit was open and it was, the safety pins was making a close circuit and not allowing the computer to fire the plas. So what I did to test this is pulled one of the pins on the euro connection and tested it and sure as #### it worked! I don't know why it's wired like this but I'm still going to call everlast tomorrow and see what they say but I DO have the machine torch functioning. Let me know what you guys think and thanks for your input !

I figured that would work but now you have no safety. Not sure you want that or not. I bet if you trigger the cnc, the machine with start even without a torch plugged in. Again probably not something you want. They should use different pins for the safety and trigger, but it sounds like they don't. Or they could wire the CNC plug in series, but then you would need to plug in a special jumper plug to use the hand torch. I have seen just that setup on some Hyperthem units.

[FeddFab]

Ya that makes sense, for now I'm gonna call everlast and see what they say tomorrow and go from there.