| 摘要 |
PURPOSE:To improve the operating property of a driving device at a step transferring or at a slow speed transferring by composing the system to add a signal to indicate an acceleration made by differentiating a speed direction signal and a signal to indicate a displacement made by integrating the speed direction signal to the speed direction signal. CONSTITUTION:A joy stick 10 operates as a speed input device, outputs a speed direction signal proportional to its operating angle, and the output is added to an amplifier 12 through a condenser C, diodes D1 and D2, and resistances R1 and R2, and after amplifying it there, it is output to a driver 14. When the joy stick 10 is operated to incline in a moment from the neutral position, one pulse is output to the amplifier 12 through a differential circuit 20, a motor M is rotated at a specific angle thereby, and a carrage 16 is transferred by steps. On the other hand, when the joy stick 10 is inclined a little from the neutral position, a signal of a specific pulse train is added to the amplifier 12 through an integral circuit 32, the motor M is rotated thereby, and the carrage 16 is transferred at a slow speed. |
