Additional Information:
If I follow the Plasma Sense user's manual version 1.2 where it says: "Set Analog voltage input register: PoKeys_*********xx/PlasmaSense HV" I"m able to make the torch to pierce but it stops immediately after, does not follow the next moving command and an alarm comes out and the process stops. If I follow your recommendation of reading the Mach4 user's documentation for plasma configuration, it says there that: "The analog voltage is a register that can be found by going to Diagnostic>RegFile and selecting your motion controller, then its plasma unit". This is confusing, I believe it contradicts what you specify by using a different approach as explained before. So if I follow this recommendation, I can copy any of these: "iRegs0/nf/thc/TargetVoltage", "iRegs0/nf/thc/ThcActualVoltage" among several other options available. The good side of following this rule is that my system works partially fine, it follows the path while cutting and stops where it should. The bad side of it is that seem like the THC function does not work, in other words I don't see any height change while cutting so if I have a non-flat piece of material the torch will hit any high spot and the system stops. I observe that when configuring Plasma THC picking the Register from any iRegs0 like this, the THC LED in Mach4 THC screen is always on, so I can only cut material that is perfectly flat which defeats the purpose of using a THC, but this is the only combination that I've found so far to make it work. I've configured my set up using the 0-10 and the HV input voltage independently, but this makes no difference.