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LT-110-1 - Workshop on PID Loop Tuning
- Learn how to tune simple loops with simple methods (by hand)
- Recognize faulty loops
Who should attend
Anyone involved in diagnosing control-related problems or responsible for increasing loop performance
- Study the basic principles
- Distinguish open and closed loops
- Choose the appropriate performance criteria
- Describe tuning objectives and types of processes
- Recognize process flaws
- Describe data needed for process modeling (done by hand)
- Describe the PID controller role
- Start up a simple loop
- Describe different modes: manual, automatic, cascade
- Describe how data is collected with TaiJi
- Enumerate results and diagnostics obtained from TaiJi
Schedule
From 8:30 am to noon and from 1:00 pm to 4:30 pm, every day
Content
Introduction
- Control loops
- Noise, disturbances, load
- Loop objectives and performance criteria
- Controller tuning objectives
- Process problems
- 4 process dynamic modeling parameters
- 4 controller parameters (PIDF)
- Intuitive tuning vs. TaiJi software
- Traditional tuning methods
- Natural frequency
- Identification of process problems
- Valve stiction
- Valve hysteresis
- Nonlinearity
- Positioner overshoot
- Undesirable oscillations
- Finding problems through observation
- Significance of time delay on performance
- When should a loop be retuned?
Location
On site or off site
Material used
Hand-outs
Live demos
Matrikon TaiJi
- Matrikon TaiJi (latest revision)
- Matrikon Control Performance Optimizer (latest version)
