How can I check that? It never has before..

I put my THC min on 0. Max is 2. I got the THC running with GCODE great. I cut 2 things, but next problem. When running, if the THC measures voltage too far, and makes moves to lower Z, it will go below the 0 THC MIN setting I set. It will finish that cut perfect, regardless that it’s below my THC MIN setting. Next pierce it continues and then drives itself into material.

Then, I set my THC MIN lower, like at -.5. Go to run again, it cuts first pierce awesome, goes to do second and drives into material, I’m guessing it’s trying to get to that THC MIN setting?

here:
http://www.machsupport.com/forum/index.php/topic,35183.0.html

i found a thread, witch sounds like the same Problem.

i have read the proma Manual again, i am a Little bit stuck
at this:

"H - U" (High Voltage) - value of the off load voltage detection
in the plasma cutter - used to detect the main (cutting) arc: 50-
300V by default: 200V

Parameter.My question is what does Proma if cutting voltage is below this Parameter ?
for my understanding this Parameter should be below cutting voltage, but i don't really know.


on the Plasma Programm run Screen is a dro called Curr:
this should be zeroed after each M3 call (Torch ON) ?

what does the DOWN LED on Proma in the Situation when the torch goes into material ?

sorry that can't provide the real solution.

Thomas






 

To find the off-load voltage or open-circuit voltage, just fire the torch into air - this only works if not is a pilot-arc or blowback-arc torch though, and do not do it for too long as it will melt the torch tip.

I think my PROMA may be bad.. I’m only getting ARC OK signal on the PROMA itself every once in a while and it’s  very inconsistent

have you tryed this

H - U" (High Voltage) Parameter ?

HI at do I change it to? Whenever I try a dry fire test in the air to get the correct voltage, it shoots 180-190 v

All you need to discover is the voltage when NOT cutting and the voltage ranges when it IS cutting - set the H-U setting to be higher than the voltages when cutting as it needs to see the change from piercing to cutting.

Sounds like your setting is on the border, it needs a bit more of gap.

I will continue to trouble shoot things once I get my table back up and running. My G540 board crashed and I’m working on getting that fixed. Thanks for all the help