Plasma THC P16 delay: raise for low-frequency plasma Source-Date (SAST): 2025-02-19 10:23 Dest: both Review-after: 2027-08-31 Status: current Facts Low-frequency plasma returns arc voltage slower than high-frequency plasma. On THC, raise P16 from the default 0.2 s to 0.5 s–1 s so the controller waits long enough for the arc signal.