Hi to all
I am newbie on the plasma CNC world and I am really desperate.
Las week I finally finish to integrate my first DIY plasma table (4ftx8ft) everything has been configured and debug on dry cycle. I am using sheetcam and Mach3 full license both,Everything with Gecko G540.

My problem is that I am using a Lotos Ltp5500D plasma NON HF and pilot arc, without voltage divider, so my THC is not reading the voltage when the arc start, I am using raw voltage. Using voltmeter the reading is 119 +/-5V but the THC send error and is not reading the voltage any suggestion??