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By John Lewis, Technical Editor -- Design News, April 22, 2002
Contact John at jlewis@cahners.com
Motion control keeps rocking
Cruising the aisles during the National Design Engineering Show in Chicago March 18-21, I noticed a host of new motion control components. Most appear to have been developed to help engineers squeeze more performance out of their motion systems, while reducing size and cost. Like last year, this year's overarching trends seem to be component integration and supplier consolidation and partnerships.
I heard about one such partnership at the Maxon Precision Motors booth. The Switzerland-based company and Nyquist Industrial Control of the Netherlands announced the joint development of an open PC-based motion control solution that integrates Nyquist's motion control technology with Maxon's cost-effective, compact, and fully digital servo drives. The combination of low-power, digital servo amplifiers and a high-end synchronized motion control solution based on open PC standards will provide OEMs with yet another FireWire-based network solution for connecting an open PC-based platform to smart drives. Maxon Precision Motors, www.mpm.maxonmotor.com. Enter 617
If you're interested in smart drives, check out Bayside Motion Group's new i Drive. The family of digital servo drives was developed by D-Tech, a recently acquired German company and wholly owned subsidiary now called Bayside Controls GmbH. The power section of the amplifier uses a patented "chip-on-chip" hybrid assembly that is manufactured in a clean room environment. Bayside had the little blue box running every motor in its booth, and was demonstrating the drive's advanced yet simple programming interface. The drive is a complete point-to-point digital amplifier available in seven models with power ratings ranging from 0.5 to 3 kW. It can be used for both velocity and position control of synchronous and asynchronous motors. Bayside Motion Group, www.bayside.com. Enter 618
Thomson Micron displayed its TitanTRUE Gearmotors, which use a modular, segmented extrusion concept that allows engineers to more quickly customize selection of four basic power transmission components: gearhead, motor, brake, and feedback device. Integration of components provides a compact gearmotor package. Bearing seals, gasket, and o-rings on the modular enclosure provide an IP64 and NEMA-13 protection on standard models. Thomson Mincron, www.thomsonindustries.com. Enter 619
I/O controller
Intended as an input and output solution, the IOC-7007 I/O controller reportedly eliminates the need for an external PLC and communicates with other Ethernet network devices. The controller includes optoisolated inputs and outputs, TTL inputs, high power outputs, dry contact relays, analog inputs, or analog outputs. Galil Motion Control, www.galilmc.com. Enter 620
Motors
Offering a reportedly low profile and high resolution, the ULT brushless, frameless motors are suited for part handling and inspection for direct drive applications. Made in 10 mm motor axial lengths with 30 to 600 oz.-in. torque output, the motors have 165-mm diameters and up to 120-mm holes. Motors are available as a two-part rotor and stator assembly, running on trapezoidal or sinusoidal brushless amplifiers. Applimotion, Inc., www.applimotion.com. Enter 621
Linear actuators
The size 17 hybrid linear actuators feature a 0.9° step angle that reportedly provides a higher resolution of 0.00006 to 0.002 inch per step and 0.00006 inch full step linear movement. With up to 50 lbs of thrust capability, the linear actuators are available in linear rotary, external linear, captive, and non-captive designs. Actuators are intended for rapid motion, precise positioning, and long life applications. Haydon Switch & Instrument Inc., www.hsi-inc.com. Enter 622
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