Thank you Rod for your advice.
I'm testing when I have the chance. I can put the 1/32 divider frequency. I'm used to THCAD300 and always put on 1/128.
The sticker value for my THCAD2 is: FSV - 899.4 kHz | 0V - 96.8 kHz
The initial value for the offset was about 700 but I've noticed that when the Power Source is Down (No Power) the arc voltage is 0V. When I turn On the arc voltage goes to 12V.
Checked the encoder velocity pin with the value of 900. Put 900 in the offset. Arc voltage has 0V and got decent results.
Made some tests today. When I make the first pierce the arc voltage, in the first moments turn in -73 and then goes back to normal value.
After that the pierces (should be a higher value than the Cut Volts on material) seems normal to me.
Talked with the supplier of the plasma source and he refers HF equipment and to check the grounding. Reinforced the grounding connections which has a good grounding less than 0.3 Ohm.
