If you have the Arcfony 53, the diagram on Amazon shows the pin out for the CNC connectors.
The torch on/off gets wired to pins 2&3 on the 5 pin connector. Polarity doesn’t matter. Plug that cable into the torch on/off port on the electronics enclosure.
The THC gets wired to the 2 pin connector with the raw voltage cables. Clamp to the + pin and Torch to the - pin.
Those raw voltage cables get plugged into the color matched ports on the face of the VIM (black plastic box). Then a cord from the PV output on the VIM to the THC port on the electronics enclosure.