To achieve the highest performance, the stepper motor can be treated as a 2 phase brushless servo motor. Current to the motor will then be controlled as a function of the error signal just as with standard servo motors.
DENSO is the world's largest manufacturer - and user - of small assembly robots, employing over 17,000 of its robots in its own facilities. Over 77,000 additional DENSO robots are used by other companies worldwide. The compact, high-speed robots are used in traditional manufacturing sectors, as well as in advanced-technology applications in the medical, pharmaceutical and life sciences industries. Learn more about DENSO Robotics