| 摘要 |
PURPOSE:To make it possible to drive a motor along a specified gentle velocity curve by calling the data of memories corresponding to the travel length of a commanded table. CONSTITUTION:The travel length curves of a table 6 are preset according to its travel length and registered as velocity data or position data in memories M1-Mn according to the travel length after time subdivision. When the travel length of the table 6 is entered to a selector 15, a direct position command value is produced from the position data of the memories M1-Mn corresponding to the entered travel length and velocity command voltage is produced from a difference between the position command value and the position signal of a position detector 20. The velocity command voltage is applied to a driver 17 and a motor 9 is rotated at a desired speed. Velocity data are transmitted to an integrator and a position command value is produced. Thereby the motor 9 can be controlled along a gentle velocity curve according to the travel length of the table 6. |
