Tuesday, August 13, 2019

Understanding Motor Controls (3rd Edition)

File Size: 30.87 Mb

Understanding Motor Controls assumes that the student has no knowledge of motor controls. The student is expected to have knowledge of basic Ohm's law and basic circuits, such as series, parallel, and combination. The book begins with an overview of safety. A discussion of schematics (ladder diagrams) and wiring diagrams is presented early. The discussion of schematics and wiring diagrams is intended to help students understand the written language of motor controls. Standard NEMA symbols are discussed and employed throughout the book when possible. The operation of common control devices is presented to help students understand how these components function and how they are used in motor control circuits. Basic control circuits are presented in a manner that allows students to begin with simple circuit concepts and progress to more complicated circuits.

The textbook contains examples of how a schematic or ladder diagram is converted into a wiring diagram. A basic numbering system is explained and employed to aid students in making this conversion. This is the most effective method I have found of teaching a student how to make the transition from a circuit drawn on paper to properly connecting components in the field.

SECTION 1: Basic Control Circuits and Components
CHAPTER 1: General Principles of Motor Control
CHAPTER 2: Symbols and Schematic Diagrams
CHAPTER 3: Manual Starters
CHAPTER 4: Overload Relays
CHAPTER 5: Relays, Contactors, and Motor Starters
CHAPTER 6: The Control Transformer
SECTION 2: Basic Control Circuits
CHAPTER 7: START-STOP Push Button Control
CHAPTER 8: Multiple Push Button Stations
CHAPTER 9: Forward-Reverse Control
CHAPTER 10: Jogging and Inching
CHAPTER 11: Timing Relays
CHAPTER 12: Sequence Control
SECTION 2: Sensing Devices
CHAPTER 13: Pressure Switches and Sensors
CHAPTER 14: Float Switches and Liquid Lever Sensors
CHAPTER 15: Flow Switches
CHAPTER 16: Limit Switches
CHAPTER 17: Temperature Sensing Devices
CHAPTER 18: Hall Effect Sensors
CHAPTER 19: Proximity Detectors
CHAPTER 20: Photodetectors
CHAPTER 21: Reading Large Schematic Diagrams
CHAPTER 22: Installing Control Systems
SECTION 4: Starting and Braking Methods
CHAPTER 23: Across-the-Line Starting
CHAPTER 24: Resistor and Reactor Starting for AC Motors
CHAPTER 25: Autotransformer Starting
CHAPTER 26: Wye-Delta Starting
CHAPTER 27: Part Winding Starters
CHAPTER 28: Direct Current Motors
CHAPTER 29: Single Phase Motors
CHAPTER 30: Braking
SECTION 5: Wound Rotor, Synchronous, and Consequent Pole Motors
CHAPTER 31: Wound Rotor Motors
CHAPTER 32: Synchronous Motors
CHAPTER 33: Consequent Pole Motors
SECTION 6: Variable Speed Drives
CHAPTER 34: Variable Voltage and Magnetic Clutches
CHAPTER 35: Solid-State DC Motor Controls
CHAPTER 36: Variable Frequency Control
SECTION 7: Motor Installation
CHAPTER 37: Motor Installation
SECTION 8: Programmable Logic Controllers
CHAPTER 38: Programmable Logic Controllers
CHAPTER 39: Programming a PLC
CHAPTER 40: Analog Sensing for Programmable Logic Controllers
SECTION 9: Developing Control Circuits and Troubleshooting
CHAPTER 41: Developing Control Circuits
CHAPTER 42: Troubleshooting
SECTION 10: Laboratory Exercises
EXERCISE 1: Basic Control
EXERCISE 2: START-STOP Push Button Control
EXERCISE 3: Multiple Push Button Stations
EXERCISE 4: Forward-Reverse Control
EXERCISE 5: Sequence Control
EXERCISE 6: Jogging Controls
EXERCISE 7: On-DelayTimers
EXERCISE 8: Off-Delay Timers
EXERCISE 9: Designing a Printing Press Circuit
EXERCISE 10: Sequence Starting and Stopping for Three Motors
EXERCISE 11: Hydraulic Press Control
EXERCISE 12: Design of Two Flashing Lights
EXERCISE 13: Design of Three Flashing Lights
EXERCISE 14: Control for Three Pumps
EXERCISE 15: Oil Pressure Pump Circuit for a Compressor
EXERCISE 16: Autotransformer Starter
Identifying the Leads of a Three-Phase, Wye-Connected, Dual-Voltage Motor

Author Details
"Stephen L. Herman"

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