Making SERVOS better

摘要

Today's servo-controlled machines are faster, smaller, and smarter than ever, Even so, machine users demand more and more performance, and this forces designers to keep making improvements. But it can be a challenge to make a machine's servosystem perform better because so many factors come into play: servomotors, the feedback sensor, the servodrives, and the mechanical transmission, to name a few. To improve system performance, one must consider the drive. Flexibility is a key quality. A system that can accommodate several feedback and motor types will give more options for handling accuracy issues. Another family of functions that can help improve servosystems is feed forward. Feed-forward gains are added paths that speed response to command signals. One area that limits performance in many servosystems is mechanical compliance. Mechanical compliance describes the flexibility between the motor and the load. In addition to advanced algorithms, servodrive users should specify advanced servo tools.