Thursday, April 05, 2007
Networked Digital Servo Drives use IEEE 1394b technology
Suited for motion control applications, ServoWire SD series is comprised of 14 drives ranging in size from 3-60 A. Products include analog input and output as well as 8 digital I/O points and 2 high-speed sensor inputs, which are connected via pluggable terminal blocks with LED indicators. Offering 600-15,000 W of output power, 230 Series accepts 115 or 230 Vac inputs, while 460 Series offers 2,400-24,000 W of output power and accepts 230 or 460 Vac inputs.
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ROCHESTER, NY, March 6, 2006 - ORMEC has expanded their networked servo drive line with the release of the SD Drive family. The SD family enhances the popular networked digital drive line with the addition of IEEE 1394b technology. The 1394b network is more robust, efficient and faster than the previous 1394a network. The 1394b standard expands on 1394a, and defines a roadmap to 3.2 G-bit signaling as well as definitions for additional communications media (e.g. fiber optic). The introduction of this drive family, combined with our new series of SMLC controllers, allows ORMEC to provide a complete motion control system with the advantages of 1394b.
ServoWire SD Drives include an analog input which can be used within the drive or by the host controller. This allows high performance tension control within the drive. An analog output is also provided and can be used to command a remote device or as a monitor signal. The drive has 8 digital I/O points and 2 high speed sensor inputs; all connected via pluggable terminal blocks with convenient LED indicators to aid in system start up and trouble shooting.
The SD family consists of 14 drives, ranging in size from 3 amps to 60 amps. The 230 Series accepts 115 or 230 VAC inputs, offering 600 to 15,000 watts of output power. The 460 Series accepts inputs of 230 or 460 VAC, offering 2,400 to 24,000 watts of output power.
ServoWire SD digital drives provide high performance servo operation utilizing digital networking technology based on IEEE 1394b. This network provides high bandwidth and ease of use through cost-effective, industry-standard cabling. Each ServoWire drive supports a variety of high performance, quadrature and serial encoder and resolver-based servomotors. Consult ORMEC for OEM applications of user-supplied brushless rotary or linear motors---as well as DC brush-type & voice-coil motors from a wide range of manufacturers.
All ServoWire drives utilize reliable IGBT-based intelligent power modules and provide a cost effective solution for today's motion control applications.
About ORMEC
ORMEC is an ISO 9001:2000 certified company that manufactures motion control systems that integrate motion controllers, logic control, drives, servo motors and Firewire-based networking into cost-effective solutions. ORMEC is fully committed to excellence in applications engineering and technical consulting, applications programming assistance, on-site service and support. The company continues to be a leader in the development of motion control technology, including being the first company to introduce an industrial motion control system using the high-speed FireWire network.
Motion Control Research Center Develops Speed Control System for SRM Drives
The Center for Rapid Transit Systems at Virginia Tech (Blacksburg, VA) is an internationally recognized drive systems and motion control research group with expertise in the design, simulation, and control of switched reluctance motor (SRM) drives and power converter topologies.
Because of its mechanical simplicity and low cost, the SRM has become the subject of great interest in the field of electrical motor drives. Virginia Tech sought to develop a realtime speed control system for SRM drives, which involved designing, prototyping, and deploying an experimental environment for developing new SRM simulation, control system, and drive technology.
The Center chose LabVIEW graphical development software from National Instruments (Austin, TX) to create a design and simulation platform for developing new control algorithms and power electronics. With the LabMEW Simulation Module, the engineers simulated the closed-loop system dynamics of the SRM, and used the LabVIEW Control Design Toolkit to design the motor current and speed control loops. The lookup table (LUT) functions in LabVIEW represented nonlinear relationships in the simulation model.
SRMs have a nonlinear, three-dimensional relationship that relates inductance and torque to current and position. A model was added for the power electronics N+l converter, which was invented by Virginia Tech professor Krishnan Ramu. A LabVIEW block (for the commutation logic used to control the converter) was added to the model and the block was validated using simulation.
The disk drive: 50 years of progress and technology innovation: the road to two billion drives
50 Years of Hard Disk Drives
A Golden Anniversary
It seems like only yesterday. You remember yesterday, a storage world filled with clunky metal monsters hoarding bits the way banks hoarded cash--and just as inflexibly. IBM changed all that with hard disk drive development starting in 1952, and first products two years later.
In this issue, we take a look back from the point of view of the creators themselves--as well as providing a timeline of what has passed, and some hints at what will come.
CTR celebrates "The Golden Anniversary of HDD" beginning on page 8.
The hard magnetic digital disk drive, as we know it today, is used in all computer applications--in home appliances and PVR/DVRs, in automobiles, cameras, and medical applications. It is now pervasive in all segments of our society. The technology got its start in IBM's San Jose laboratories in 1952, with innovators such as Rey Johnson, Dr. Al Hoagland, Al Shugart and Bobby Smith, among others. The disk drive is unique in its history for overall cost reductions, while at the same time fostering rapid technology growth, and reaping amazing production ramps. Success in this industry has been associated with:
* Device size reduction
As a result of these accomplishments, the industry has grown from a volume of several thousand disk drives per year in the 1950s to over 260 million drives per year in 2003. The first digital hard disk drive was the 24-inch IBM 350-1, which was announced in 1955 and began shipping in 1956. This drive housed fifty 24-inch disks, had an access time of 600 milliseconds, and a capacity of 5.0 megabytes. Table 1 compares the specs on the 350 with the most recent Seagate Barracuda 7200.7 disk drive of 2003.
During this same period of time and due to the technology and production volumes, the cost of magnetic disk storage has decreased from $2,057 per megabyte in the 1960s to $.005 today--and the price per MB will continue to decrease in the future (Table 2).
The yearly volume demand of disk drives has, with the exception of 2001, increased each year since the late 1970s. Figure 1 shows the annual production of disk drives by form factor from 1975-2004. This data was gathered yearly by Disk/Trend to 1999, and by Peripheral Research and Coughlin Associates from 2000 on.
Sometime during the third quarter of 2004, the disk drive industry will reach a historical cumulative shipment level of 2 billion disk drives, and will reach the 3.5 billion mark within the next 3.5 years. The fastest growing segment in disk drive unit growth is for consumer electronic applications. Consumer electronics (CE) disk drives will approach the numbers of disk drives used for conventional desktop computer applications by 2010.
To accomplish these volumes, technology feats and production numbers, the disk drive industry grew in number of participant companies from, initially, IBM and a few other early companies to approximately 136 competing companies in the mid 1980s. Due to intense competition and price wars, industry consolidation has decreased this number to the nine companies that exist in 2004 (see Tables 3,4 and 5). Of these nine companies, two are recent start-up companies focusing on the small disk drives for the Consumer Electronics markets (Cornice and GS MagicStor).
Thinking big: this shop specifies large machine tools not just for today, but also with an eye to the machining possibilities of the future. To prepar
Coast Composites doesn't know of any cutting tools that can mill Invar faster than 1,200 ipm. This is the feed rate of the fastest passes the shop takes in Invar today. Even so, when this shop in Irvine, California, ordered two more five-axis gantry machines for milling Invar molds, company president Jerry Anthony insisted that the machines be able to cut at 2,500 ipm.
Those machines are in the shop now, and they are performing well. They are not cutting at anywhere near their top feed rate but that's OK, says Mr. Anthony. Cutting tools will evolve, and the machines will be ready when they do. With X-Y-Z travels of 30 by 12 by 6 feet, the machines are too big to consider replacing as cutting conditions get better.
Besides, cycle times have improved at the same programmed feed rates. How is this possible? In a word: acceleration.
The big machines are nimble. To meet the 2,500 ipm requirement, machine tool builder Henri Line (Granby, Quebec) applied linear motors in all three linear axes. Four motors drive the gantry along the X axis; one moves the cross slide in Y; and two linear motors move the spindle vertically in Z.
AC Drives Provide Precise Control Critical to Next-Generation Test Stands
Direct Torque Control (DTC) is widely used as a method for controlling AC motors in many demanding applications. It is a unique method for controlling AC. motors. In pulse-width modulation (PWM) drives, the output frequency and voltage are the primary control reference signals for the power switches, rather than the desired torque in/of the motor shaft. For those who are not familiar with inverter technology, the DTC principle can be illustrated most accurately via this mechanical analogy: the continuous calculation of the best angle at which to rotate a shaft, with a given arm length and the forces available. These electrical "force vectors" are generated with the help of semiconductor switches called Integrated Gate Bipolar Transistors (IGBT).
Testing of rotating machines like gears, engines, and complete cars is a demanding task. Iligli accuracy and dynamic load control - that is, control of torque - is needed both for day-in-day-out testing, but excels., specifically, on those tests with new complex electronic functions, such as ABS, EPS - or electromechanical innovations like final - clutch transmissions being introduced in the current generation of automobiles. AC motors drive these test rigs. When manufacturing test rigs for engines, transmission, or chassis dynamometers with high-performance requirements, careful consideration must be given to the AC machines and drives used in such applications (control of speed and torque are paramount). The way the AC; motor is controlled by the drive has a primary effect on these considerations.
Chassis dynamometers are typically used to test the performance of vehicle, exhaust emission, fuel consumption, noise, and fine-tuning of exhaust, catalyst, and motor fuel-injection system. It is well known that dynamometers with AC motor technology offer the best platform to realize high accuracy, dynamics, and energy savings.
Dynamometers should simulate the real highway precisely. This requires that, during acceleration and deceleration, the roll inertia be compensated dynamically to match the mass of the tested vehicle and the real road. To be able to realize such high-dynamic online compensation (real-world, real use), the load torque of the roll motor must be controlled accurately and with extreme precision at every speed point.
Testing geai-shifting-and-synchronization, calibration of automatic transmissions, clutching, and durability - these are typical testing needs. Inherently, these cases require a capability to change load torque very quickly. And, transmission test-stand configuration can include several motors - one simulating the engine, and two or even more for the simulation of the load. This requires mutual coordination of drives operation; the faster and more accurate it is, the better it simulates real-world conditions like differential-gear operation.
For engine dynamometers, the dynamic performance is the key issue to ensure that you can simulate real systems dynamically and accurately. DTC drive technology answers this challenge directly. The test system's overall dynamic performance can be quantified by looking at the delay from reference change to change in AC motor torque.
The dynamics of the electrical system are defined by several fundamental elements: the electrical and mechanical characteristic of the AC machine (leakage inductance and inertia); the torque-control cycle of the AC drive; and any delay from speed/torque reference via any drive interface to the control-cycle loop itself. DTC controls motor torque every 25 µs (microseconds).
Once the torque reference is changed, DTC automatically selects the best voltage vector to achieve the desired torque, and checks every 25 µs if this vector is still the hest one to maximize torque rise, or whether another vector should be used. The actual rise then is solely dependent on motor characteristics, such as leakage inductance. The torque rise time with a standard motor is between 1-2 milliseconds (ms), measured from current rise. For high-speed dynos, the leakage inductances are typically smaller, thus requiring shorter current- and torque-rise times.
The repeatability of testing is always important, but it is of particular importance when testing engines and complete cars for emissions. DTC has torque repeatability of less than ±0.5% of nominal torque. This means that the load applied will be the same time after time, and the measurement results from a test cell are comparable with each other. The benefits are reduced testing requirements, improved test data quality, i.e., reduced overall testing time.
Wednesday, April 04, 2007
Grounding Coupling works with 5-15 hp NEMA motors
Aegis(TM) Shaft Grounding Coupling prevents electrical damage to bearings of AC motors with variable frequency drives by safely passing harmful shaft current to ground. With Electron Transport Technology(TM), coupling provides virtual short between shaft and motor frame that keeps shaft current and voltage from building up. It provides cleanroom-quality bearing isolation with dust-proof seal that also protects against water spray.
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MECHANIC FALLS, ME - The revolutionary new Aegis(TM) Shaft Grounding Coupling (SGC) from Electro Static Technology prevents electrical damage to bearings of AC motors by safely passing harmful shaft current to ground. Extremely effective yet low-cost, the Aegis coupling provides an ultra-low impedance path from shaft to frame, allowing current induced by variable frequency drives (VFDs) to pass to ground without damaging motor bearings or the bearing race.
When variable frequency drives are used with AC motors, current is induced along the motor shaft. When it overcomes the resistance of the grease, this current discharges through the motor bearings causing frosting, pitting, fluting, and fusion craters which can lead to premature motor failure. With its patent-pending Electron Transport Technology(TM), the Aegis coupling solves this problem by providing a "virtual short" between the shaft and motor frame that keeps shaft current and voltage from building up in the first place. Easily installed and maintenance free, the Aegis coupling is a reliable, low-cost alternative to less effective mitigation schemes such as brushes.
In addition to eliminating damaging shaft current, the Aegis SGC provides cleanroom-quality bearing isolation with a dustproof seal that also protects against water spray. Developed initially for 5 to 15 HP NEMA motors (the largest installed base of motor/drive applications), the Aegis SGC is ideal for HVAC, cleanroom, petrochemical, manufacturing, transportation, and other applications where VFDs are used. Additional sizes will be available in the immediate future.
Electro Static Technology is a global leader in the elimination and/or mitigation of induced electrical charges. Other products include FLX-P(TM) flexible peel-and-stick passive static eliminators for printers, copiers, and other imaging devices. Electro Static Technology is a division of Illinois Tool Works (ITW), a $10 billion multinational conglomerate operating in 44 countries.
Modular AC Drives operate on standard platform
Featuring interchangeable architecture, SINAMICS[R] G and S series scalable ac drives let users select, start up, and configure appropriate drive for any application, at any power range from 120 W to 1+ MW using same software for every drive. Models in G series offer power from 1/6-1,100 hp for stand-alone applications. For applications requiring coordinated drives with servo functions, models in S series offer max power from 125-1,500 hp.
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New comprehensive drives line creates consolidated approach to drive management
ATLANTA (March 7, 2005) - Siemens Energy & Automation, Inc., adds another checkmark to its innovation scorecard with the unveiling of SINAMICS[R], the first family of AC drives that operates on one, standard platform.
This revolutionary technology makes it easy for Siemens customers to select, start up and configure the right drive for any application at any power range (120W to more than 1MW), using the same software for every drive in the family. As a result, manufacturers can streamline simple and complex multi-drive manufacturing operations, giving them new ways to push cost out of their processes and stay more competitive.With SINAMICS, Siemens has made a tremendous investment in the next generation of drives technology," said Aubert Martin, president of Siemens Energy & Automation. "We've spent a significant amount of time and resources over the past several years researching and developing SINAMICS, which builds upon our time-tested expertise from Siemens worldwide and defines our commitment to bringing the latest innovations to U.S. businesses.
"SINAMICS incorporates best-in-class engineering, tools and products to give manufacturers more ease of use, options and flexibility to keep them competitive at home and abroad."
SINAMICS modular and scalable industrial AC drives feature an interchangeable architecture, which simplifies application startups and the integration of new drives into new and existing systems.
Common engineering tools available exclusively from Siemens, SIZER and STARTER, are designed to easily select and configure any drive solution - from the most basic operation to complex motion and servo control functions. The user-friendly programs are applicable to every drive in the SINAMICS line.
"The engineering is unified and seamless throughout, making SINAMICS the choice for any power range, functionality and application," said Martin.
The new SINAMICS drive line is broad enough for any stand-alone or multiple-drive application in any industry. Martin added that the SINAMICS line allows Siemens customers to apply SINAMICS drives in many more applications not served with the existing Siemens drive products. Existing drive lines, generally found in more complex industrial applications, will continue to be part of Siemens' product mix.
CE- and UL-certified (cUL for Canada), the SINAMICS family consists of drive G and S models, each with a wide range of performance and power-handling characteristics. The SINAMICS G drives are designed for general to high-performance, stand-alone drives applications. The SINAMICS S drives take a unique approach to coordinated drives with servo functions.
SINAMICS "G" drives for general to high-performance, stand-alone drives.
SINAMICS G110 - Easy to use and compact for commercial and industrial constant or variable torque applications including water pumps, material handling conveyors and fans found in the HVAC industry
The SINAMICS G110 is a compact, low-power AC drive frequency inverter for the low-cost, high-volume marketplace. Delivering smooth and continuous speed control, the SINAMICS G110 operates variable-speed, three-phase motors on single-phase line power supplies. The SINAMICS G110 frequency inverter is rated for 200-240V input with a power range of 1/6HP to 4HP.
* SINAMICS G130 - Modular and easily integrated for standard, general performance VT applications including pumps, fans and compressors
The SINAMICS G130 is a modular, high-power drive ideal for OEMs that construct their own drive enclosures. Rated from 500 to 800 HP, the G130 is comprised of a power chassis that operates on three-phase, 400-480VAC power. A controller kit supports a variety of optional components.
Modular AC Drives operate on standard platform
Featuring interchangeable architecture, SINAMICS[R] G and S series scalable ac drives let users select, start up, and configure appropriate drive for any application, at any power range from 120 W to 1+ MW using same software for every drive. Models in G series offer power from 1/6-1,100 hp for stand-alone applications. For applications requiring coordinated drives with servo functions, models in S series offer max power from 125-1,500 hp.
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New comprehensive drives line creates consolidated approach to drive management
ATLANTA (March 7, 2005) - Siemens Energy & Automation, Inc., adds another checkmark to its innovation scorecard with the unveiling of SINAMICS[R], the first family of AC drives that operates on one, standard platform.
This revolutionary technology makes it easy for Siemens customers to select, start up and configure the right drive for any application at any power range (120W to more than 1MW), using the same software for every drive in the family. As a result, manufacturers can streamline simple and complex multi-drive manufacturing operations, giving them new ways to push cost out of their processes and stay more competitive.With SINAMICS, Siemens has made a tremendous investment in the next generation of drives technology," said Aubert Martin, president of Siemens Energy & Automation. "We've spent a significant amount of time and resources over the past several years researching and developing SINAMICS, which builds upon our time-tested expertise from Siemens worldwide and defines our commitment to bringing the latest innovations to U.S. businesses.
"SINAMICS incorporates best-in-class engineering, tools and products to give manufacturers more ease of use, options and flexibility to keep them competitive at home and abroad."
SINAMICS modular and scalable industrial AC drives feature an interchangeable architecture, which simplifies application startups and the integration of new drives into new and existing systems.
Common engineering tools available exclusively from Siemens, SIZER and STARTER, are designed to easily select and configure any drive solution - from the most basic operation to complex motion and servo control functions. The user-friendly programs are applicable to every drive in the SINAMICS line.
"The engineering is unified and seamless throughout, making SINAMICS the choice for any power range, functionality and application," said Martin.
The new SINAMICS drive line is broad enough for any stand-alone or multiple-drive application in any industry. Martin added that the SINAMICS line allows Siemens customers to apply SINAMICS drives in many more applications not served with the existing Siemens drive products. Existing drive lines, generally found in more complex industrial applications, will continue to be part of Siemens' product mix.
CE- and UL-certified (cUL for Canada), the SINAMICS family consists of drive G and S models, each with a wide range of performance and power-handling characteristics. The SINAMICS G drives are designed for general to high-performance, stand-alone drives applications. The SINAMICS S drives take a unique approach to coordinated drives with servo functions.
SINAMICS "G" drives for general to high-performance, stand-alone drives.
SINAMICS G110 - Easy to use and compact for commercial and industrial constant or variable torque applications including water pumps, material handling conveyors and fans found in the HVAC industry
The SINAMICS G110 is a compact, low-power AC drive frequency inverter for the low-cost, high-volume marketplace. Delivering smooth and continuous speed control, the SINAMICS G110 operates variable-speed, three-phase motors on single-phase line power supplies. The SINAMICS G110 frequency inverter is rated for 200-240V input with a power range of 1/6HP to 4HP.
* SINAMICS G130 - Modular and easily integrated for standard, general performance VT applications including pumps, fans and compressors
The SINAMICS G130 is a modular, high-power drive ideal for OEMs that construct their own drive enclosures. Rated from 500 to 800 HP, the G130 is comprised of a power chassis that operates on three-phase, 400-480VAC power. A controller kit supports a variety of optional components.
* SINAMICS G150 - General performance for high horsepower needs for a wide range of applications including pumps, fans, compressors, mixers, extruders and mills
The SINAMICS G150 is a high-horsepower, AC/AC 6-pulse general purpose enclosed drive available from 150-800 HP at 400-480V and 100-1,100 HP at 660-690V, and mid 2005 at 500-600V. The drive is designed for a wide variety of applications including pumps, fans, compressors, mixers, extruders and mills. The G150 is available in two versions - a ready-to- install, connect-and-run enclosed drive offered with a wide range of options, and a more basic enclosed chassis for use with an MCC. Both versions are housed in a NEMA 1 or an optional NEMA 12 ventilated enclosure. The enclosure design incorporates Siemens proprietary components that make it compact, low-noise and very efficient in cooling.
Brush/Brushless Servo Motors feature low torque ripple
Series SE500 consists of 8 brushed servos from 23-500 W, while Series SE600 features 8 low inertia brushless servos from 30-1,500 W, and Series SE700 includes 12 medium inertia brushless servos from 50-7,000 W. Differential Hall signals U, V, and W are standard on SE600 and SE700 units. Torque ripple on these 10-pole servos is 0.3% of rated torque. Series SE500 features 1,000 line differential encoders, while Series SE600 and SE700 come with 2,000 line differential encoders.
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San Luis Obispo, CA - Trust Automation, Inc. has introduced a new series of brushed servos and two series of brushless servos that can lower the cost of new or existing applications, and improve the performance of an existing application. The integration into an existing application is easy as each motor has been designed as a, "Drop-in-Replacement." Additionally, each series of servo motors has been engineered to reduce torque ripple for smooth operation. Integral encoder, brake, and tachometer options make these brushed and brushless servos ideal for: Robotics, machine tools, medical equipment, assembly, and packaging applications.
Matching the right servo is easy. The SE500 series consists of eight brushed servos from 23 Watts up to 500 Watts. These motors have been designed for high performance. For example, the 5000 rpm SE540-0200 motor is rated at 200 Watts, 3.3 A continuous, and 25 A peak for greater throughput.
The SE600 series of eight low inertia brushless servos features servo motors that go from 30 Watts up to 1500 Watts and the SE700 series of twelve medium inertia brushless servos go from 50 Watts to 7000 Watts. Standard on SE600 and SE700 servos is differential Hall signals U, V, and W. Torque ripple on these 10 pole servos is only 0.3 % of rated torque.
Brushed Motors, SE500 series, come standard with 1000 line differential encoders, and Brushless Motors, SE600 and SE700 series, come standard with 2000 line differential encoders. Optional 500, 1000, 2000, and 2500 line differential encoders with A, B & Index (for brushed and brushless) are available as special order. A standard 24 Volt DC and optional 90 Volt DC fail-safe brake is available for brushed and brushless motors. Brushed motors have optional tachometers (for 110 watts and above). Oil seals are standard on all models and matching servo amplifiers are available.
Trust Automation, Inc. has focused on developing and manufacturing the highest performance servo products in the motion control market. Our innovative products address the increasing demand for higher performance and simpler machine integration.
Trust Automation's motion control products include: Stand-alone motion and machine controllers, SynqNet I/O and SynqNet Drives, Brushed and Brushless Rotary Motors, Interconnect Products and Automation Engineering consulting covering Mechanical, Electrical, Software and System aspects of machine design.
Since 1990 Trust Automation has provided Smart Solutions in Motion Control and Affordable Customization of motion related products.
AC Drives feature 600 V rating in 1.5-150 hp range
Available in NEMA 1 or NEMA 12 enclosures, Series AC550 features sensorless vector design, combined with 2 internal slots for options such as encoder feedback, 115/230 V digital interface card, I/O expansion, or fieldbus adapters. Units are suitable for end users, OEMs, system integrators, and panel builders that need compact drives to power fans, pumps, and other motors common to machines and processing equipment.
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(The ACS550 drives line has been extended beyond the 208/240 and 380/480 volt class for use in a variety of industrial applications)
NEW BERLIN, Wis., March 24, 2005 . . . Extension of the voltage rating of ABB's ACS550 AC drives line to 600 volts, in a 1.5-150 HP range, widens significantly the universe of end users that now will be able to install the drives for a variety of industrial applications. "That includes applications in the U.S., and customers throughout Canada where 575 volts is the standard," according to Cliff Cole, director of marketing for ABB Inc., Automation Technologies, Low-Voltage Drives.
The ACS550 line, which "features a unique built-in combination of simplicity, convenience, fieldbus connectivity, harmonic mitigation and programmability to a degree we've not seen in drives before," Cole said, "has been greeted with immense enthusiasm during the roll-out over the past year.The ACS550 is ideal for OEMs, who make machines for use throughout North America, Cole noted. "Through ABB, these machine builders now can access this complete drive family, which is optimized for common North American voltages." Drives rated at 600 volts also are used in the southeast and along the Gulf Coast in a variety of industries, including textiles, and petrochemical (refineries and processing facilities).
As the 1-550 HP, 208/240 and 380/480-volt class of the drives were introduced, ABB engineers developed the drive further, with extensions to 500, 575 and 600 VAC inputs. The 1.5-150 horsepower drives are ideal for powering fans, pumps, and the host of motors common to machines and processing equipment.
It's All Inside --
High horsepower in a compact design delivers high power density to end users, OEMs, systems integrators, and panel builders who need a full-featured drive in a small, flexible package. They are available in NEMA 1 or NEMA 12 enclosures.
The power-to-volume ratio in this sensorless vector design, combined with two internal slots for options such as encoder feedback, 115/230V digital interface card, I/O expansion, or fieldbus adapters, gives the ACS550 line "a leg up on the competition, when it comes to customer ease of installation," according to Jukka Nurmi, product line manager for the ACS550 series. "Drive usage has never been so easy."
The 600-Volt drive units are now available from stock, Nurmi noted, and they currently are in production and assembly at the ABB drives factory in New Berlin. "Production here also facilitates quick, easy delivery of the new drives to customers throughout North America," he said.
ABB Inc., Automation Technologies, Drives and Motors, is the world's largest manufacturer of electric motors and drives. In the USA, an integrated channel of sales representatives, distributors, and system integrators, allows ABB, New Berlin, Wisconsin, to supply a complete line of energy-efficient electric drives, motors and engineered drive systems to a wide range of industrial and commercial customers. Products manufactured include AC and DC variable speed drives for electric motors from 1/2 through 135,000 HP, large AC machines and drives, medium-voltage AC drives, power electronics and rectifier systems, AC & DC motors, and application-
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