电梯控制系统可分为电力拖动系统和电气控制系统两个主要部分。电力拖动系统由曳引电动机、供电系统、速度反馈装置、电动机调速装置组成。轿厢的上下、启动、加速、匀速运行、减速、平层停车等动作,完全由曳引电动机拖动系统完成。电气控制系统则由众多呼叫按钮、传感器、控制用继电器、指示灯、数码管和控制部分的核心器件等组成。控制器集信号采集、信号输出及逻辑控制于一体,与电梯电力拖动系统一起实现了电梯控制的所有功能。目前,电梯的控制普遍采用了两种方式:第一种方式是采用微机作为信号控制单元,完成电梯信号的采集、运行状态和功能的设定,实现电梯的自动调度和集选运行功能,拖动控制则由变频器来完成;第二种控制方式用可编程控制器(PLC)取代微机实现信号集选控制。从控制方式和性能上 Elevator control system can be divided into electric drive system and electrical control system two main parts. Electric traction system consists of traction motor, power supply system, speed feedback device, motor speed control device. Car up and down, start, accelerate, uniform running, deceleration, leveling parking and other actions, completely drag the motor drag system completed. Electrical control system consists of many call buttons, sensors, control relays, lights, digital control and control part of the core components. Controller set signal acquisition, signal output and logic control in one, together with the elevator power drive system to achieve all the features of the elevator control. At present, the elevator control generally adopts two ways: the first way is to use the microcomputer as the signal control unit to complete the elevator signal acquisition, operation status and function settings, to achieve the elevator automatic scheduling and set election run function, drag Dynamic control by the inverter to complete; The second control method using programmable logic controller (PLC) to replace the computer to achieve signal set control. From the control and performance