Process Controls

PRINCIPLES OF CONTROL SYSTEMS

• Automatic Control System
• Functions of Automatic Contro
• Elements of Automatic Control
• Feedback Control

CONTROL LOOP DIAGRAMS

• Feedback Control System Block Diagram
• Process Time Lags
• Stability of Automatic Control Systems

TWO POSITION CONTROL SYSTEMS

• Controllers
• Two Position Controller
• Example of Two Position Control
• Modes of Automatic Control

PROPORTIONAL CONTROL SYSTEMS

• Control Mode
• Proportional Band
• Example of a Proportional Process Control System

RESET (INTEGRAL) CONTROL SYSTEMS

• Reset Control (Integral)
• Definition of Integral Control
• Example of an Integral Flow Control System
• Properties of Integral Control

PROPORTIONAL PLUS RESET CONTROL SYSTEMS

• Proportional Plus Reset
• Example of Proportional Plus Reset Control
• Reset Windup

PROPORTIONAL PLUS RATE CONTROL SYSTEMS

• Proportional-Derivative
• Definition of Derivative Control
• Example of Proportional Plus Rate Control
• Applications

PROPORTIONAL-INTEGRAL-DERIVATIVE CONTROL SYSTEMS

• Proportional-Integral-Derivative
• Proportional Plus Reset Plus Rate Controller Actions

CONTROLLERS

• Control Stations
• Self-Balancing Control Stations

VALVE ACTUATORS

• Pneumatic Actuators
• Hydraulic Actuators
• Electric Solenoid Actuators
• Electric Motor Actuators