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  • An Innovative Cabling Concept Improves Reliability for Multi-Axis Stage Systems
    many axes the stage system includes. The 5 electrical leads are easy to handle in one moving cable carrier. Each axis carries its own motion controller independently. All leads to motor, sensors and encoder systems have a length of typically less than 20 cm. More important, all the electrical
  • Servos adapt to their loads
    servoamplifiers cover a power range from 30 to 5,000 W in 115, 230, and 480-Vac input power versions. Control compatibility of the XtraDrive includes inputs for step, direction, an analog velocity reference, and an analog torque reference. The XtraDrive comes standard with an embedded 1.5-axis controller
  • DSP technology keeps stage aimed straight
    and deceleration so as to avoid exciting the system at these frequencies. The stages use a method of direct interpolation that produces 5-nm resolution at speeds reaching 2,000 mm/sec. A licensed algorithm for yaw control makes use of dual encoder feedback in the control loop of the axis to compensate
  • Torque, Speed, and Yogurt Cups
    the plug-assist function that aids in forming deep-draw features. Another 5-kW servomotor ejects parts after molding completes. The servos, all from , Waukegan, Ill., are powered through Yaskawa Sigma II amplifier/controllers. There are three motions involved in every molding cycle, and the machine inertia
  • LSMs Ride the Wave of Modular Manufacturing
    Speedy linear synchronous-motor systems outrun conventional conveyors. SmartPods from AGR Automation in the U.K. incorporate QuickStick LSM modules (seen through lower windows). SmartPods are modular, expandable, automated assembly and packaging platforms. Platform operations include six-axis pick
  • Constant velocity in positioning systems
    controller/drive module. Constant velocity, = +-1%, while position jitter, m. Note at a 10-kHz sampling rate, jitter frequency = 5 kHz in this case. Precision-positioning systems used for metrology, inspection, printing, DNA assaying, and laser machining are typified by a need for smooth motion

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