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AC and DC Variable Speed Drives: Application Solutions

 

 
Knowing what controller/motor package to use in a given situation is just one of the subjects covered in this overview of AC and DC drive application considerations. Published originally as a direct mail piece for distribution use, it has been updated with additional information on drive selection to make it a more useful reference and training tool. This has been previously released as publication D-7151, but is updated here. This information also appears in the introduction section of the Standard Drives Catalog (D-406). Drive products support diverse applications with a wide variety of products. AC drives serve processing needs and industrial applications such as fans, pumps, mixers, conveyors, and extruders, plus many more. DC drives control processing equipment such as for sheet metal, material handling, and center winders/unwinders. Any drive featured in this publication will provide some form of motor speed regulation and variable speed operation. Within these categories, we offer a broad spectrum of horsepower ranges, drive interconnectivity capabilities, and flexibilities.
Products & Services
AC motor drives interface controllers to AC motors. They match the control signals (voltage and power levels) as well as the signal type (analog or digital). They also provide power conversion, amplification, and the sequencing of waveform signals. Search by Specification | Learn more about AC Motor Drives
Motor speed controllers are electronic devices that control motor speed. They carry specifications for drive type, product classification, electrical ratings, and operating parameters. Search by Specification | Learn more about Motor Speed Controllers
Adjustable speed drives alter the speed of a driven shaft to a speed selected by an operator. Search by Specification | Learn more about Adjustable Speed Drives
Motor controllers receive supply voltages and provide signals to motor drives that are interfaced to motors. They include a power supply, amplifier, user interface, and position control circuitry. Search by Specification | Learn more about Motor Controllers
DC motors are most commonly used in variable speed and torque applications. They include brushless and gear motors, as well as servomotors. Search by Specification | Learn more about DC Motors
Product Announcements
Allen-Bradley / Rockwell Automation - Compact Power & Control in AC Drive
PowerFlex® 755 AC Drive Designed for ease of use, integration, application flexibility, and performance to maximize your investment and help improve productivity. Ideal for applications that require... (read more)
Automationdirect.com - DURApulse and GS Series AC Drives
-AC variable frequency drives for speed control applications. High quality drives at low prices. DURApulse series sensorless vector AC drives are built on the simplicity & flexibility of the GS1... (read more)
ABB Drives and Motors - ACS150 Industrial AC Drive
This "variable-speed starter," offered from 0.5 - 5.0 HP range, with a +10VDC output potentiometer reference, makes it easy for OEMs, system integrators and panel builders to get motors running in... (read more)
Automationdirect.com - NEW: NEMA Premium AC Motors
AutomationDirect offers a variety of AC motors from ¼-100 Hp. New models offer premium efficiency from 1-100 Hp. These TEFC motors meet or exceed NEMA Premium ratings for reduced power consumption... (read more)
Zero-Max - Adjustable Speed Drives Provide Infinitely
Zero-Max Adjustable Speed Drives are a proven method for changing operating speeds. They eliminate the need for expensive AC/DC drives or variable pitch belt drives. Output speed is infinitely... (read more)
ABB Drives and Motors - Extension of General Machinery Drive
Machine and system designs easy to expand via ABB's extension of the ACS350 general machinery drive to 15 horsepower (15 HP, 480V drives provide very fast machine building and assembly times)... (read more)
ABB Drives and Motors - Drive Modules - buy only what you need
OEMs and panel builders buy only what they need via ABB's expanded ACS800-U4 drive modules introduction (Modules offer essential parts needed for in-cabinet installation; modules now include R2... (read more)
ABB Drives and Motors - ACS350 Industrial AC Drive
Innovative features such as FlashDrop technology, sequence programming, flexible user interface and cabinet-compatible hardware help builders optimize machines, repeat production quickly - and... (read more)
Yaskawa Electric America - Drives Division - Industrial AC Drives
This group of Adjustable Frequency Drives and Inverters control the speed of ac induction motors in factory automation processes and industrial OEM machines. (read more)
 
Topics of Interest
To some, motor speed control is somewhat of a mystical science, a science that causes motors and machines to sometimes operate in unexpected ways. Over 30 years ago, AC drives were considered "new... (Read More)
Matrix Filters may be used for phase controlled DC drive applications to improve power factor and reduce line harmonics. Application to DC drives is similar to AC drives with a few important... (Read More)
Overview INDUSTRIAL PROCESS CONTROL NEEDS VARIABLE SPEED ENERGY SAVINGS REALIZED IN VARIABLE-FLOW CONTROL APPLICATIONS SUPERIORITY OF AC DRIVES OVER VARIABLE-SPEED DC DRIVES... (Read More)
Introduction Probably the easiest of drive technologies to understand is the direct current (DC) drive. This type of drive converts fixed-voltage and frequency alternating current (AC) to an... (Read More)
The following information will serve as a final book summary. This will assist the reader in preparing for the final "Check Your Knowledge" section that follows. For a thorough review and before the... (Read More)
See more product announcements for AC Motor Drives
Paramax® SEC Extruder Drive

Paramax® SEC Extruder Drive
Sumitomo Machinery Corp. of America


A New Way to Control Your Three Phase AC Motors

A New Way to Control Your Three Phase AC Motors
AA Electric


LEESON's Low cost Drive Excels

LEESON's Low cost Drive Excels
LEESON Electric - A REGAL-BELOIT Company


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