| 摘要 |
<p>A digital servo system which is featured by improved precision in the ''halt'' position. A position detection means (1) counts +1 or -1 every time when an object is moved by a predetermined distance, and sends the position of the object to a position error detection means (2). The error relative to a position command value obtained by the position error detection means (2) is sent to a velocity command generation means (3), where it is processed into velocity command. To the velocity command is added by a velocity command offset addition means (8) an offset value having an absolute value smaller than a minimum velocity command value. A motor (40) is driven on the velocity command that is added to the offset value.</p> |
