What the self-tuning loop buys you
The PXF9APP2-FVMA1: Self-tuning means the controller auto-calculates PID gains during the first heat-up cycle — no manual Ziegler-Nichols step test needed on the line. The 50 ms sampling rate keeps the loop update tight enough for electrically heated zones with fast thermal response (cartridge heaters, infrared emitters) where a slower controller would hunt.
