Stage 7 · Keep control steady · 6 min
Control a band, not a point
I can hold demand between two thresholds and diagnose chatter.
1. Why it matters
Ripples on the water can make a pump start and stop again and again near one level. All those starts overheat the motor and wear out its parts.
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- The idea in plain words
- See it happen, scan by scan, in Siemens and Rockwell
- Vendor notes
- On site
- Try it on the rig
- Check your understanding