PID Feedback below min. Value

What does F00221 mean?

The feedback signal for the PID controller has dropped below its configured minimum threshold (p2268). This indicates an issue with the feedback sensor, its wiring, or an incorrect parameter setting, causing the PID loop to lose its reference and potentially leading to unstable control or undershoot.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Review and adjust the PID feedback gain if the signal appears noisy or inconsistent, or if the sensor range is incorrect.