| 摘要 |
<p>A servo control circuit suppresses an incompletely integrated term contained in the integrated gain in a speed feedback loop of a speed control block (5) at a moment when a deviation between a position signal from a machine system and a movement instruction has exceeded a predetermined reference value. This makes it possible to control the torque instruction to the current control block (6) such that a torque is minimized that develops overshooting according to static frictional characteristics of the machine system. The operation equivalent to the one realized in the analog servo system by non-linearly operating the coefficients of a CR time-constant circuit during electric charge and discharge is realized in the digital servo control system aided by a computer.</p> |
