| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor drive controller which can easily make switching from a speed control system to a position control system shortest according to acceleration which a motor can produce.SOLUTION: The motor drive controller which drives and controls a motor has: a control input calculation unit 13 which calculates a control input U to a motor 3 on the basis of a position deviation DRP which is the difference of a position instruction X and a position detection value B; a reference control input calculation unit 12 which calculates maximum acceleration of the motor 3 on the basis of the position detection value B and the control input U, calculates required deceleration necessary distance until deceleration stop on the basis of the maximum acceleration and the position detection value B, and calculates reference control input which is a desired value of the control input on the basis of the ratio of the deceleration necessary distance and the position deviation DRP; and a position deviation correcting unit 11 which corrects the position deviation DRP so that the control input U can be matched with the reference control input. Thereby, the control input U is calculated on the basis of a correction position deviation C. |
