【摘要】 阐述了可编程控制器应用于电梯的特点,编制了PLC-VVVF变频电梯控制系统框图;详细介绍了G 7型变频器在电梯拖动控制系统中所起的作用以及电梯控制参数的选择,并分析了系统的节能效果。更多还原

【Abstract】 This paper elaborates the characteristics of PLC applied to the control system of an elevator,gives the design scheme of the control system,introduces the function of converter G7 in the control system and the choice of the controlling parameters in detail.At last,the energy-saving effect of the scheme is also analyzed.更多还原