Tuesday, August 13, 2019

Basic Control Theory Tutorial

Basic control theoryThis basic control theory tutorial looks at on/off and continuous control modes. It introduces proportional, integral and derivative control actions and explains some of the terminology. Courtesy of Spirax Sarco and Mountain States Engineering and Controls.

Topics Include:
  • On/off control
  • Continuous control
  • Proportional control
  • The effect of adjusting the Proportional-band
  • Reverse or direct acting control signal
  • Gain line offset or proportional effect
  • Manual reset
  • Overshoot and ‘wind up’
  • Derivative control - rate action
  • PID controllers
  • Hunting
  • Lag
  • Rangeability
  • Turndown ratio