Air Logic Control for Automated Systems

Published:
June 18, 1999 by CRC Press - 192 Pages
Author(s):
Rudy Wojtecki, Kent State University -Trumbull, Warren, Ohio, USA

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Hardback
$139.95
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ISBN 9780849320576
Cat# 2057
 

Features

  • Provides the background needed to establish a solid understanding of air logic control and the concepts used in industrial control systems
  • Focuses not only on design but on applying design techniques to understanding ALC from the point of view of implementation, programming, maintenance, and troubleshooting
  • Offers three case studies, in progressing complexity, that feature alternative approaches to problem solving
  • Includes numerous tables, figures, and illustrations
  • Provides a summary, review questions, and exercises in each chapter

    • Summary

    As industrial processes become more and more automated, Air Logic Control (ALC) becomes increasingly important. As the use of ALC becomes more widespread, the need for designers, engineers, and technicians with a working knowledge of ALC technology grows significantly. Air Logic Control for Automated Systems provides the means for anyone involved with control systems to acquire the knowledge and skills they need to implement and maintain ALC for automated manufacturing.

    The author focuses on the two types of ALC most often encountered: fluidics and Moving Parts Logic (MPL). He provides a thorough background on the subject, including the properties of compressible fluids, the fundamentals of pneumatics, and the fundamentals of logic systems, then delves into both moving parts and non-moving parts concepts and components. He discusses signal transmission, communications, electrical and electronic devices, plus the symbology, schematics, and flow diagrams related to ALC, and offers a complete overview of ALC system design. With this background established, the author presents three case studies of increasing complexity: a press control system, a parts sorting system, and a bottle filling system. These studies each offer a different approach to problem-solving and together they illustrate the alternative methods available in practice.

    Air Logic Control for Automated Systems thus offers technicians, engineers, and designers the foundation for understanding ALC. Armed with this knowledge, they are equipped to handle any number of implementation, programming, maintenance, and troubleshooting tasks with confidence.

    Table of Contents

    INTRODUCTION TO AIR LOGIC CONTROL
    History
    Industrial Applications
    Control Characteristics
    Moving Part Logic (MPL)
    Fluidics
    Future Developments
    PROPERTIES OF COMPRESSIBLE FLUIDS
    Static Properties
    Gas Laws
    Dynamic Properties
    FUNDAMENTALS OF PNEUMATICS
    Compressors
    Receivers
    Pressure Switch
    Pneumatic Systems
    Noise
    Fluid Conditioning
    Fluid Transmission
    Fittings
    Manifolds
    Pressure Rating
    Sizing
    Materials Selection
    Pneumatic Actuators
    Intensifiers
    Controlling Pneumatic Power
    FUNDAMENTALS OF LOGIC SYSTEMS
    Symbolism
    Boolean Postulates
    Basic Operations
    Combining Devices
    Defined Functions
    Algebraic Expressions (Boolean Algebra)
    Mathematical Symbolism
    Properties
    Uncomplementations
    MPL CONCEPTS AND COMPONENTS
    Concepts
    Spool Valve Construction
    Diaphragm Valve Construction
    Poppet Valve Construction
    Floating Spool Construction
    MPL Classes
    Typical MPL Valve Operations
    NON-MPL CONCEPTS AND COMPONENTS
    Fluidic Concepts
    Jet Deflection
    Jet Destruction
    Fluidic Sensors
    Device Packages
    LOGIC ELEMENTS
    YES
    NOT
    AND
    OR
    NAND
    NOR
    Exclusive OR
    Coincidence
    Inhibitor
    Timers
    Time Delay
    Flip-Flops
    SIGNAL TRANSMISSION AND COMMUNICATIONS
    Design Concerns
    Parameters
    Pressure Attenuation
    Time Delay
    Phase Delay
    Pulse Energy
    ELECTRICAL/ELECTRONIC DEVICES
    Switches
    Solenoids
    Relays
    Indicator Lamps
    Counters
    Timers
    PLCs
    Computers
    Motors
    Servo Systems
    Transducers
    Benefits of Air, Electrical, Hydraulic
    SYMBOLOGY, SCHEMATICS, AND FLOW DIAGRAMS
    Standards
    Symbols
    Convention
    Schematics
    Attached Method
    Detached Method
    Logic Diagram
    Flow Charts
    Connection Diagrams
    Mathematical Models
    Truth Tables
    Relay Logic
    Ladder Diagrams
    Karnaugh Maps
    Software
    ALC SYSTEM DESIGN
    The Design Process
    Process Automation
    System Parameters
    Control Types
    Technology Selection
    ALC Technology Selection
    APPLICATIONS--PRESS CONTROL SYSTEM
    Press Control Process Description
    Process Variables
    System Logic
    Fluidic Control System Design
    MPL Control System Design
    PLC Ladder Logic
    APPLICATIONS--PARTS SORTING SYSTEM
    Part Sorting Process Description
    Process Variables
    System Logic
    MPL Control System Design
    Fluidic Control System Design
    PLC Ladder Logic
    APPLICATIONS--BOTTLE FILLING SYSTEM
    Bottle Filling Process Description
    Process Variables
    System Logic
    ALC System Design
    PLC Ladder Logic
    SAFETY
    Major Sources of Hazards in an Industrial Environment
    Hazards Involving Compressed Air Systems
    General Safety Practices
    OSHA
    State Agencies
    REFERENCES
    INDEX

    Plus each chapter contains a summary, review questions, and problems

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