I have been cutting mostly 14Ga with my powermax 65. This past weekend I had a job to cut some 1/2" mild steel. I set up the profile in sheetcam with the specs in the manual. When the machine would run the g-code, it would touch off and pierce with no issue, then begin the cut. About .500" into the cut the torch would turn off and the machine stops. It is acting like the arc is being lost. I ran the machine with the torch off to verify the g-code was good and no problems. I tried to run the same program on some 1/4" plate with the 1/4" parameters and the same thing. I bumped up the IPM rate from 90 to 120 and it cut out the part with no issue other then cut quality suffereing a bit. I believe the material is being blown away and losing the arc when run at the slower speeds. Any ideas?

Some clarification: The recommended cut data is based on the nozzle rated amperage, correct?

Thanks