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DURATION

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5 Days

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DESIGNED FOR

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This practical workshop, centered on the ISA-recommended PC-ControlLAB simulator, provides instrumentation, automation and process engineers and technicians with the basic theoretical and practical understanding of PID control systems.

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ABOUT THE COURSE

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Participants learn through active participation using a series of 20 practical simulation exercises covering: process reaction; tuning methods; diagnostic tools; affect of different algorithms; surge tank level control; analysis of such problems as valve hysteresis, stiction and non-linearities and the impact on controllability; and integral windup.

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YOU WILL LEARN HOW TO

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Describe such terms as process lag, capacitance and resistance
Explain the significance of the process reaction curve
Identify the effects of filtering on loop performance
Distinguish the effect of span on the system performance
Analyze such problems as valve hysteresis, stiction and non-linearities
Evaluate the effects of proportional, integral and derivative control
Correctly apply both open and closed Loop Tuning according to Ziegler Nichols
Apply ‘as found’ tuning
Estimate the effects on loop tuning using a software-based loop analysis program
Describe both cascade and feedforward control
Explain split range control
Identify and correct problems due to process dead time
Discuss the top 20 mistakes made in the field of process control

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COURSE CONTENT

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Basic process considerations
Process lag, capacitance and resistance
Process reaction curve
1st and 2nd order reactions
Instrumentation cabling
Filtering
Aliasing
Reaction masking
Sensor placement
Correct PV
Effect of span
Inherent and installed valve characteristics
Actuators
Valve positioners
Testing procedures and analysis
ON/OFF control
Proportional control
Proportional offset
Reset
Integral action and windup
Stability
Derivative action
PID control
Control algorithms
Load disturbances and offset
Speed, stability and robustness
Open loop reaction curve tuning method (Ziegler-Nichols)
Default and typical settings
Closed loop continuous cycling tuning method (Ziegler-Nichols)
Fine tuning
‘As found’ tuning
Surge tank level control
Split/parallel range control
Cascade systems
Feed-forward and combined systems
Ratio control
System integration

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Note: For full participation delegates should bring their own or company PC to the workshop. The PC should have sufficient administrative rights to allowed temporary downloading of the PC-Control LAB simulator (12 MB running on Windows 7).