| 摘要 |
PURPOSE:To improve the answering characteristics on adjustable speed drive of carriage, by a method wherein after carrying out suitable waveform conversion to accelerate the answer to a speed setting signal, power is applied to the carriage driving control circuit. CONSTITUTION:The desired speed signal VR from speed assignment circuit 17, multiplied by a fixed number K to obtain optimum controlling characteristics at proportional circuit 18, added with optimum controlling characteristics at proportional circuit 18, added with two signals at an adder coupling part 19 and the signal VRHO is generated. The signal VP is transiently emphasized by the amplitude of signal VR at the inclination changing points of rising and falling of signal VR and the carriage motor 10 can more quickly follow the desired speed. |
