Quick PID Tuning Basics

該当する場合

Use this guide for transparent first gains when you already have a rough process model or step-test estimates.

使うツール

P, I, and D starting gains from process lag and damping targets—loop screening; validate on the real plant.

PID Tuning Helper を開く →

手順

  1. 1Identify process gain, time constant, and dead time from a defensible step or bump test.
  2. 2Choose a tuning rule appropriate to loop speed and robustness needs.
  3. 3Compute P, I, and D contributions and check for unreasonable gain or rate limits.
  4. 4Simulate or test in manual-friendly conditions before full automation.
  5. 5Iterate after observing noise, valve stiction, and setpoint changes.

  • Flow loop with fast dynamics vs temperature loop with minutes of lag.
  • Level loop where integrating behavior dominates.

避けること

  • Tuning without understanding whether the loop is integrating.
  • Using aggressive ZN gains on noisy signals.
  • Ignoring output limits that invalidate linear predictions.

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よくある質問

Does this auto-tune online?

No. It helps compute suggested gains from your entered model.

Cascade loops?

Tune inner fast loops first; this guide targets single-loop screening.

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