| 摘要 |
PURPOSE:To stop a rod with high accuracy by correcting a set pulse numeric value for stopping the rod at a specified position on the basis of a preceding measured value or the mean value of several times and suspending the application of voltage to a motor on the basis of the corrected numeric value. CONSTITUTION:The angle of rotation and a time until the time of the stoppage of the revolution of the output shaft of a motor 12 after the time of the stoppage of the application of voltage of the motor 12 are measured by the measuring section 16 of a learning machine 15. A set pulse numeric value is arithmetically operated and corrected by a microcomputer 17 from the measured values and a correction coefficient stored in the microcomputer 17 of the learning machine 15. The numeric value corrected is input to a pulse counting comparator 20, and compared with a pulse numeric value generated from a pulse generating means 19. When the pulse numeric values coincide, the signal of the coincidence is input to a controller 14, and the application of voltage to the motor 12 is suspended. Accordingly, a rod 13 is corrected, and stopped at a position having higher accuracy. |
