Servomotor control card

December 2003 Motion Control & Drives

A three-axis servomotor control card that turns a PC into a position controller is available from ProMicro. The PCL-832 uses digital differential analysis techniques to implement position control. Each axis has its own position control chip allowing complete independent control of up to three servomotors.

A special circuit synchronises all three axis simultaneously. The card can supply a simulated tachometer output to the servomotor driver, making a tachometer unnecessary in some applications, reducing overall system cost.

The PCL-832's programming library, accessible from C, supports high-level commands and functions for easy control. The library includes commands to set the DDA cycle time and acceleration/deceleration curve, as well as functions for linear interpolation, circular interpolation, return home and jog.

For more information contact Elton Prytz, ProMicro, 011 706 7913, [email protected], www.promicro.co.za

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