| 摘要 |
PURPOSE:To obtain a smooth speed command signal, by adding a step-shaped speed pattern signal to a triangular-wave signal synchronized with the change in the speed pattern signal in a high speed range, and adding the step-shaped speed pattern signal to a pulse signal synchronized with the change in the speed pattern signal in a low speed range. CONSTITUTION:A triangular wave generation circuit 5 produces a triangular-wave output synchronized with the change in the output signal of a step-shaped speed pattern signal generator 1. A one-shot pulse generation circuit 6 produces a pulse signal synchronized with the change in the output signal of the step-shaped speed pattern signal generator 1. A contact 7 is connected to the triangular wave generation circuit 5 in a high speed range or to the one-shot pulse generation circuit 6 in a low speed range. The output of the generation circuit 5 or 6 is added to a step- shaped speed pattern signal to produce a speed command signal 90. |
