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Servo Systems Close the Door on Pneumatic
Actuators
 Automated machines assembling car-door panels are now equipped with servo-based motion-control systems, replacing pneumatic actuators. Closed-loop control and fully programmable multi-stop positioning result in a 6% productivity gain. And, the use of servo drives enables capture of process data as well as production traceability.
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Machine Designer's 'Aha' Optical Fiber
Moment
 Charged with designing a control platform for a new duct-forming and stacking machine, an engineer eschews a platform built on a PLC and motion controller and opts instead for a single-axis controller. The controller minimizes the amount of hardware required, and uses an optical-fiber motion network — one connection provides full communication and control.
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Wiring Practically Disappears with Decentralized Servo
 Here's a servo drive — equipped with a Multi-Ethernet interface — that enables direct connection of Ethernet and peripheral devices. This feature is said to reduce the amount of wiring required by as much as 85% compared to a conventional drive. Adjustment of software settings is all that's required for communication-protocol configuration.
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Three Golden Rules Cancel Stray Currents
 Part 3 of a three-part series on mitigating stray currents in variable-frequency drives at DrivesMag.compresents three golden rules: return as many common-mode currents back to the VFD as possible; equalize ground potential between the VFD chassis ground, motor frame ground, and the neutral of the supply transformer; and filter VFD output for high frequency.
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Wire and Cable for Motors and DrivesAlpha Wire
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VLT FCD 302 Minimizes Design and Installation CostsDanfoss VLT Drives
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 Alpha Wire manufactures wire and cable specialized for motors and drives, including VFD systems and Servo motors. Our cables feature uniform geometry for better signal integrity, reduced capacitance for longer runs, shielding for EMI protection, and rugged environmental and mechanical properties for long-term reliability. Visit us here to learn more and request complimentary samples.
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 The VLT® Decentral Drive FCD 302 is the perfect solution for: conveyor applications.
Minimize installation costs. With fewer numbers of boxes to be mounted, in fewer locations, that's a saving in time and man-hours. Fewer cables makes for less time and cost and less money spent on cable management systems. Read more.
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Sensorless Vector Drives — SG Series Benshaw, Inc.
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IEEE-841 Chemical and Process Motors WorldWide Electric Corporation
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 The SG series is a compact, economical drive designed for the most demanding applications. The flexible power stack allows the user to apply it to heavy duty loads (150% for 60 secs), standard duty loads (120% for 60 secs), or variable torque loads (110% for 60 secs). 5hp - 700hp
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 Worldwide Electric has added HYUNDAI IEEE-841 chemical and process duty motors to their extensive motor product line. IEEE-841 motors meet or exceed IEEE-841 standards and carry five-year warranty. A test report is supplied with each motor. For more information, please visit our Web site.
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Pumps Provide Creature Comfort at UK
Resort
 The maintenance staff at Alton Towers Resort has been replacing fan drives in the resort's air-handling plant with new AC drives. The new drives feature I/O modules fitted to receive input from sensorslocated throughout the resort's waterpark, spa, and two hotels, to ensure guest comfort and prevent excessive condensation, which could spoil all the fun.
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Performance Depends on Wise Encoder
Selection
 To ensure accurate positioning and smooth servo-drive performance, designers must carefully evaluate and select the right rotary encoder for the application. Topics discussed in this article include: inductive scanning systems, encoder-signal quality, and interpolation error — "which hurts the positioning accuracy and significantly degrades the speed stability and audible noise behavior of the drive," says the author.
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CNC Servos Cure Machine Tool's Memory
Loss
 Management at rotary-actuator manufacturer Helac Corp. called its vertical turning center a "workhorse…whose older CNC and DC drives/motors were an Achilles heel." To upgrade the machine's control, which often lost its memory during brief power outages, the firm installed a pre-engineered modular retrofit package with new servo drives and motors. As a result, power-quality issues are non-issues.
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Single-axis Servos for Mid-range Systems
 In this video (2:43 long) filmed at the Rockwell Automation Fair 2011 last November, business manager Kelly Schachenman describes enhancements to the company's mid-range control systems. Included are new Ethernet/IP single-axis indexing servo drives designed "to provide scalability of integrated motion." Typical applications include packaging, material handling, and automated assembly and inspection.
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Integrated Drive / Programmable Display
Save Money Dart Controls, Inc.
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Belts, Chains, Sprockets, and PulleysBerg W.M., Inc.
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 The MicroDrive from Dart Controlsincorporates in a single unit the functionality of DC drive, digital display, On/Run/Off lamps, Manual/Off/Auto switch, counter/timer module, relay(s), power supply, and signal isolator. Eliminating one or more of these components saves purchase cost, panel space, installation labor, and procurement time.
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 W.M. Berg manufactures a wide variety of cable chains, molded belts, sprockets, and pulleys. The belts consist of polyurethane plastic molded over either a single or double stainless steel core. The belts are lightweight, self-lubricating, come in infinite lengths, and are field spliceable with a stainless steel splice.
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Register Today!  GlobalSpec's Medical Equipment Design — March 7, 2012
 Join your peers and leading manufacturers for this free, informative, and interactive ONLINE conference and trade show — right from the convenience of your desktop. Participate in any or all of the educational sessions, network with peers, and meet with manufacturers eager to showcase their latest products, services, and new technology offerings. Learn more about the educational sessions offered to meet your information needs, and register today!
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