Thank you Rod for confirming that.
I have been using a THC delay of 0.1 for 5 months without issues.
As for ARCOK, there were some changes made from version 186 i think as there was a situation where the torch would fire while the torch was still traveling to pierce height causing a lost arc. Also some other functions were added regarding lost arc.
As with everything else, plasma is a complicated process, dependet on a lot of variables, so troubleshooting and fixing issues is not easy by any stretch.
ARC voltage varies a lot, from material being cut to grid voltage will cause fluctuations, on transformer type plasmas more that inverter ones, thin power wires and low/bad grid supply will cause lost arc very often as the supply voltage will drop a lot the moment the arc transfers as confirmed on two machines and two sites, a Hypertherm 3070 had lost arcs very often on one site/shop with anything over 60A while the same machine has no issues in the current shop at full power, but a 400A Hypertherm has that issue in the same shop.
Plasma sources use a lot of power, typically at 100A they use over 25KW and that is way over what most normal grids can handle, and any drop in grid voltage will cause lost arcs. Inverter type plasmas are much better regarding this due to built in capacitors and voltage/current regulation.
To long.........
