The programmable chips eliminate oscillation, reduce vibration, and reduce the change in acceleration for less wear and tear on the system and faster transfer times. The ICs accept position, velocity, and acceleration from the host to generate a corresponding trajectory. Communication is through a host microprocessor with an 8 or 16-bit parallel bus, CANbus 2.0B, or asynchronous serial port. Features include programmable PID filter with velocity and acceleration, feed-forward, 32-bit position error, dual biquad filters, 50-µsec loop time, and multichip synchronization. Trace capabilities give designers on-the-fly data storage for analyzing system performance, tuning servo-filters, and performing maintenance and diagnostics. Available in a single-IC/single-axis version or a two-IC/multiaxis version, the ICs are packaged in a 144 and 100-pin TQFP.
Performance Motion Devices Inc., 55 Old Bedford Rd., Lincoln, MA 01773, (781) 674-9860, pmdcorp.com