Follow the specs in your plasma system manual. Look up the material type and thicknes on the cut charts.....there will be a max speed and optimal speed...(use the optimal speed for best cut quality), it will list what consumables to use, what amperage (set it on the plasma) what arc voltage (set it on the height control)....the cut height and the pierce height and the pierce delay. All of these change for each type and thickness of material. Always pierce at 1.5 to 2 times the cut height. With the height control in "auto" you can change the arc voltage while cutting....try it....as you increase the voltage you will see the torch rise, as you decrease it the torch will lower. This will indicate that the THC is working.
Jim |