Control Systems and Tuning Concepts

The video tutorial demonstrates the setup and tuning of a Fischer wizard pneumatic controller for pressure control using the Ziegler-Nichols closed-loop method. It covers the system setup, calculation of proportional band and gain, and the steps to achieve sustained oscillation. The tutorial also explains how to calculate the ultimate gain and reset settings, and concludes with final adjustments to achieve optimal control loop performance.

What is the primary function of the Fischer Wizard Controller in this demonstration?

• Temperature control

• Pressure control

• Flow rate control

• Humidity control

What is the range of the valve used in the control setup?

• 0 to 10 psi

• 10 to 50 psi

• 20 to 40 psi

• 6 to 30 psi

What is the purpose of the control valve in the trainer setup?

• To regulate temperature

• To control humidity

• To increase downstream pressure

• To decrease upstream pressure

How is the proportional gain calculated from the proportional band?

• Multiply by 100

• Add 50 to the proportional band

• Subtract 10 from the proportional band

• Divide 100 by the proportional band

What is the target outcome when adjusting the proportional band for Ziegler-Nichols tuning?

• Stable operation

• Sustained oscillation

• Rapid decay

• Constant output

What is the ultimate gain calculated during the demonstration?

• 10

• 15

• 20

• 25

How long is the period of oscillation recorded in the demonstration?

• 4.5 seconds

• 1.5 seconds

• 3.5 seconds

• 2.5 seconds

What is the proportional band value entered into the controller after calculations?

• 15%

• 11%

• 9%

• 5%

What is the final setting for minutes per repeat in the controller?

• 0.055

• 0.045

• 0.035

• 0.025

What type of response is expected after the final controller setup?

• Half amplitude decay

• No decay

• Quarter amplitude decay

• Full amplitude decay