| 摘要 |
PURPOSE:To shorten the positioning time by applying a voltage signal of the prescribed value in a positive direction before the stopping position and in a reverse direction after the stopping position to a motor, thereby eliminating hunting. CONSTITUTION:The shaft of a motor 2 deives a load 3 and an encoder 4, and the outpt of the encorder 4 is inputted to a rotating direction detector 5, a moving distance detector 6 and a speed detector 7. The output of the detector 5 is inputted to the detector 6, and to a microcomputer 9. The outputs of the detectors 6 and 7 are inputted to the microcomputer 9. A duty signal and normal/reverse signal are outputted from the microcomputer 9 to a drive circuit 8. When the motor 2 is moved to the vicinity of the prescribed stopping position, the normal or reverse direction of the voltage value determined unitarily by the remaining distance is applied to the motor 2. |
