【摘要】 提出了使用ＭＣＳ５１单片机，ＰＬＣ可编程控制器和ＶＶＶＦ变频器组成的自动电梯的控制系统．该控制系统具有体积小，调节方便、节能和功能强等特点．分析了单片机控制系统及ＰＬＣ控制系统的硬件、软件结构、工作原理．更多还原

【Abstract】 A control system of VVVF elevator using single chip microprocessor and PLC was described in this paper. This control system was convenient in regulation and high efficiency. It is of small size and good functions. The principle of control system and its hardware design were introduced in detail. The control softwares were also desert.bed briefly.更多还原