To push the cost/performance envelope in motion-system design, more engineers are using different motor types on a single machine. But until recently, this was only possible with board-level motion controllers. Now engineers have a lower cost option: The Navigatorô MC2800 Series of multiple motor type motion processors.
Designed to control brushed and brushless servomotors, the chipset supports sinusoidal commutation of two- or three-phase brushless motors as well as positioning and velocity control of brushed servomotors. "MC2800's flexibility, price, and performance help designers meet motion requirements with a versatile, compact product," says PMD President and CEO Chuck Lewin.
Comprised of a 132-pin processor and a 100-pin logic device (both surface-mount CMOS technology powered by 5V), the design reduces motion controller cost, size, and complexity, while off-loading the application's host processor from resource-intensive motion-control functions. PMD's instruction set supports more than 130 commands that offer designers flexibility and versatility during programming, says Lewin.
The processor supports user selectable profiling modes including S-curve, trapezoidal, velocity contouring, and electronic gearing. The processor sends two or three separate motor signals per axis, either in a 16-bit DAC or 10-bit, 20-kHz PWM-compatible format. Applications include industrial automation, robotics, medical, and test and laboratory equipment. Prices start at $69 in OEM quantities.
Additional Details...Wendy O'Connell, 12 Waltham St., Lexington, MA 02421; Tel: (781) 674-9860 ext. 232; FAX: (781) 674-9861; www.pmdcorp.com †† †