Contents
SECTION 1 Basic Control Circuits and Components
CHAPTER 1 General Principles of Motor Control
- Installation of Motors and Control Equipment
- Types of Control Systems
- Functions of Motor Control
- Review Questions
CHAPTER 2 Symbols and Schematic Diagrams
- Sensing Devices
- Review Questions
CHAPTER 3 Manual Starters
- Manual Push Button Starters
- Troubleshooting
- Review Questions
CHAPTER 4 Overload Relays
- Dual Element Fuses
- Thermal Overload Relays
- Magnetic Overload Relays
- Overload Contacts
- Protecting Large Florsepower Motors
- Review Questions
CHAPTER 5 Relays, Contactors, and Motor Starters
- Relays
- Electromagnet Construction
- Contactors
- Mechanically Held Contactors and Relays
- Mercury Relays
- Motor Starters
- Review Questions
CHAPTER 6 The Control Transformer
- Grounded and Floating Control Systems
- Transformer Fusing
- Review Questions
SECTION 2 Basic Control Circuits
CHAPTER 7 START-STOP Push Button Control
- Review Questions
CHAPTERS 8 Multiple Push Button Stations
- Review Questions
CHAPTERS 9 Forward-Reverse Control
- Review Questions
CHAPTER 10 Jogging and Inching 133
- Inching Controls
- Review Questions
CHAPTER 11 Timing Relays
- PneumaticTimers
- Clock Timers
- Cam or Sequence Timers
- Electronic Timers
- Review Questions
CHAPTER 12 Sequence Control
- Stopping the Motors in Sequence
- Review Questions
SECTIONS Sensing Devices
CHAPTER 13 Pressure Switches and Sensors
- Differential Pressure
- Typical Application
- Pressure Sensors
- Review Questions
CHAPTER 14 Float Switches and Liquid Lever Sensors
- Mercury Bulb Float Switch
- The Bubbler System
- Review Questions
CHAPTER 15 Flow Switches
- Review Questions
CHAPTER 16 Limit Switches
- Micro Limit Switches
- Subminiature Micro Switches
- Limit Switch Application
- Review Questions
CHAPTER 17 Temperature Sensing Devices
- Expansion of Metal
- Resistance Temperature Detectors
- Expansion Due to Pressure
- Review Questions
CHAPTER 18 Hall Effect Sensors
- Principles of Operation
- Hall Generator Applications
- Review Questions
CHAPTER 19 Proximity Detectors
- Applications
- Metal Detectors
- Mounting
- Capacitive Proximity Detectors
- Ultrasonic Proximity Detectors
- Review Questions
CHAPTER 20 Photodetectors
- Applications
- Types of Detectors
- Mounting
- Photodetector Application
- Review Questions
CHAPTER 21 Reading Large Schematic Diagrams
- Review Questions
CHAPTER 22 Installing Control Systems
- Component Location
- Point-to-Point Connection
- Using Terminal Strips
- Review Questions
SECTION 4 Starting and Braking Methods
CHAPTER 23 Across-the-Line Starting
- Direct Current Motors
- Review Questions
CHAPTER 24 Resistor and Reactor Starting for AC MotorsResistor Starting
- Reactor Starting
- Step Starting
- Review Questions
CHAPTER 25 Autotransformer Starting
- Open and Closed Transition Starting
- Review Questions
CHAPTER 26 Wye-Delta Starting
- Wye-Delta Starting Requirements
- Dual Voltage Connections
- Connecting the Stator Leads
- Closed Transition Starting
- Overload Setting
- Review Questions
CHAPTER 27 Part Winding Starters
- Overload Protection
- Dual Voltage Motors
- Motor Applications
- Three Step Starting
- Automatic Shutdown
- Review Questions
CHAPTER 28 Direct Current Motors
- Field Windings
- Armature Windings
- Series Motors
- Shunt Motors
- Compound Motors
- Field Loss Relay
- External Shunt Field Control
- Controlling Compounding
- Cumulative and Differential Compounding
- Testing the Motor for Cumulative or
- Differential Compounding
- Direction of Rotation
- Determining the Direction of Rotation
- Review Questions
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