| 摘要 |
PURPOSE:To readily position accurately a motor inexpensively by not instructing by rotating directly the motor but instructing by electrically operating to rotate the motor. CONSTITUTION:A command pulse train is outputted by a command of a microcomputer 1 when the control of a motor is executed, counted by a deviation counter 3, and the motor 9 is rotated through a D/A converter 4 as a control signal of a motor drive circuit 8. The signal of a tachometer generator 10 of signals of the generator 10 interlocked to the motor 9 and a pulse generator 11 holds its rotating speed. The signal of the generator 11 holds the rotating angle through a direction discriminator 12 or the like. A changeover switch 7 is switched at the teaching time, and the motor 9 can be freely and readily controlled at its speed merely by switching the switch 7 and manually rotating a switch teaching manual VR5 lightly. Accordingly, inexpensive and accurate positioning can be readily performed in this manner. |
