Help current and future technicians gain a thorough understanding of today's electronic variable speed drives with this one-of-a-kind practical guide. ELECTRONIC VARIABLE SPEED DRIVES, 4E provides the information essential for mastering DC and inverter drive technology. Using a logical structure, this book introduces fundamental drive circuits before presenting more complex drive circuits.

This new edition highlights the most current technology advances for drives. The authors use their extensive industry and teaching experience to present theory in a clear, straightforward manner with an emphasis on both troubleshooting and maintenance. New hands-on activities in this edition provide additional practice using the Allen-Bradley PowerFlex 70, while numerous waveform schematics guide readers through operating different types of drives and interpreting their circuitry. Specific chapters focus on digital regenerative DC drives and frequency inverters as well as mechanical and electrical installation, set-up, tuning, programming, operating, and troubleshooting of each drive. Depend on this concise, yet thorough, book to present the information professional technicians need for success.

Introduction.
1.Introduction to Variable Frequency Drives.
2.Review of Physical, Electrical, and Motor Terminolgy.
3.Variable Frequency Drive (VFD) Basics.
Activity 3-1: VFD Familiarization.
4.VFD Installation.
5.VFD Programming.
Activity 5-1: Local/Remote Control.
Activity 5-2: Motor Magnetic Field Current.
Activity 5-3: Reversing Directions.
Activity 5-4: Acceleration and Deceleration.
Activity 5-5: Using the VFD's I/O.
Activity 5-6: Master/Slave.
Activity 5-7: Skip Frequencies.
Activity 5-8: S-Curves.
Activity 5-9: Braking.
Activity 5-10: Voltage Boost.
Activity 5-11: Operating Above Base Motor Speed.
6.VFD Troubleshooting and Maintenance.
Activity 6-1: I/O Waveforms.
Activity 6-2: Checking IGBT Modules.
7. DC Drives.
Glossary.
Index.

Help current and future technicians gain a thorough understanding of today's electronic variable speed drives with this one-of-a-kind practical guide. ELECTRONIC VARIABLE SPEED DRIVES, 4E provides the information essential for mastering DC and inverter drive technology. Using a logical structure, this book introduces fundamental drive circuits before presenting more complex drive circuits. This new edition highlights the most current technology advances for drives. The authors use their extensive industry and teaching experience to present theory in a clear, straightforward manner with an emphasis on both troubleshooting and maintenance. New hands-on activities in this edition provide additional practice using the Allen-Bradley PowerFlex 70, while numerous waveform schematics guide readers through operating different types of drives and interpreting their circuitry. Specific chapters focus on digital regenerative DC drives and frequency inverters as well as mechanical and electrical installation, set-up, tuning, programming, operating, and troubleshooting of each drive. Depend on this concise, yet thorough, book to present the information professional technicians need for success. NEW COVERAGE HIGHLIGHTS THE LATEST TECHNOLOGIES AND APPLICATIONS IN THE FIELD TODAY. Readers become familiar with the most recent developments in the field and are prepared to work with the latest technology. CHAPTERS HIGHLIGHT DEVELOPING INDUSTRY TOPICS. Readers gain a thorough understanding of digital regenerative DC drives and frequency inverters as well as today's other emerging technologies. Additional manufacturer-specific information prepares readers to work with the latest advancements. DEPTH OF COVERAGE IS IDEAL FOR BOTH NOVICE OR EXPEREINCED TECHNICIANS. This book skillfully advances from basic coverage that's ideal for the novice drive user and helpful as review for more advanced users to complex topics, such as set up and troubleshooting. The authors review basic electrical and motor theory and drive fundamentals before progressing to more involved control circuits and advanced materials. CLEAR, CONCISE EXPLANATIONS FOCUS ON ESSENTIAL INFORMATION. Explanations and theory are presented in a clear, concise, no-nonsense manner with very little use of formulas. THOROUGH COVERAGE OF TROUBLESHOOTING EQUIPS READERS FOR CHALLENGES ON THE JOB. The authors cover troubleshooting techniques in detail. The book devotes an entire chapter to DC drive troubleshooting and AC drive troubleshooting. ACTUAL MANUFACTURER'S SCHEMATICS PREPARE READERS FOR SUCCESS IN THE REAL WORLD. Readers work with real manufacturer's schematics as they progress through the book. This enables readers to easily transition the skills they are learning to success on the job. APPENDIX PROVIDES REFRESHER ON DC AND AC MOTOR THEORY. An optional refresher on DC and AC motor theory in the appendix provides thorough review for readers who need it. The appendix emphasizes solid-state devices as they relate to variable speed drive technology.