Control Systems — question 7 of 10
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A motor position control loop was tuned and verified stable on the bench running at a 1kHz control rate. The team later moves the same control code onto a lower-cost microcontroller and, to save CPU budget elsewhere, drops the loop rate to 200 Hz without changing any PID gains. In testing, the motor now oscillates around the setpoint where before it settled cleanly. Explain the mechanism connecting the rate change to the new oscillation, and what you would change to fix it.