Connecting THC300 to HF plasma.

Hi,
Happy New Year to all on the forum.

I am in the process of designing a CNC plasma table I have had great pleasure in reading Tommylights posts about design, and construction of plasma machines. I have not been able to find any information regarding the correct connection point for the THC 300. The machine is a Lincoln Invertec pc100. I have attached the wiring diagram. Two diagrams, one for the PC100, which is not very explicit, and the PC60, which is a lower powered machine. I think the circuit is the same design, but with different value components.
A company Torchmate, who were purchased by Lincoln used a PC100 as the power source, so it must be possible.
I would appreciate any assistance.
Regards,
Rob.