Torch dive

[jlasater]

I've been cutting out random parts in the shop since August when I got my TM4400 running. Today after about an inch of cutting, the torch dives into the work and pops the breakaway. Running it in dry mode has it sense the plate, set height, and run the part without issue. As so as I set it to active, the torch starts hitting the work. I will say I'm using the rectangle shape out of the built-in shape library in VMD, but I wouldn't think that would matter.

I saw another comment about adjusting the set voltage but I'm not sure where that setting is in the VMD software. Likewise, I'm puzzled why something would suddenly change. I verified the ohmic feature is working, but I don't think that comes into play during the actual cut. On occasion I see the "circle V" icon on the FlexCut 80 unit turn on as well and I have to power cycle the unit to get that to reset, otherwise it won't even attempt to strike an arc.

Love these machines...but they can be maddening when they decide to play difficult.

[adbuch]

This sounds like the thc needs calibration, assuming you are getting the correct divided arc voltage from your plasma cutter to your thc. I would also take a look in your plasma cutter manual to find out what the circle V error means. I'm guessing these two issues may be related.

David

[jlasater]

I was annoyed enough with it that I just walked away for about 45 minutes and helped one of the kids move some stuff. I came back and it was working fine again...??? very weird.

Interesting...the circle with a V is voltage input (either high or low, it would seem). I used a mig welder on that outlet earlier today without issues...wonder why the FC80 would be complaining. If it keeps happening, I'll put a volt meter on the line and check when it's running.