电梯基础知识4电梯机房、井道和底坑

No: Date: Page: Original: ITSA-TD-2044/01 2004/09/27 1 of 4-39 U&D ELEVATOR ODBO (CHINA) All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner. 未经许可，不得复制。 电梯基础知识 Lift Know -how 4 电梯机房、井道和底坑 Machine room，Well and pit of lift 4-1机房 Machine room 电梯机房一般设置在电梯井道的顶部（机房上置式）。机房内安装有曳引机、导向轮、控制柜、限速器、总电源控制盒等。 Normally located on top of well (upper-placed machine room), machine room includes traction machine, diverter pulley, control cabinet, overspeed governor and main power control box. 4-1-1 控制柜 Control cabinet 电梯控制柜安装在曳引机旁边，是电梯的拖动装置和信号控制中心。如图 4-1所示。早期的电梯控制柜中有接触器、继电器、电容、电阻器、变压器、整流器等。随着电脑、电子技术的飞越发展，VVVF控制技术、光纤通讯技术、串行通信、网络技术等在电梯上得到广泛应用。大规模集成电路的应用使电梯控制柜体积越来越小，功能越来越强，可靠性越来越高。目前的电梯控制柜大多由全电脑控制板和变频器组成，达到对交流电动机进行调频调压调速控制（VVVF）。 Located near traction machine, control cabinet serves as a trailing device and signal control center, as shown in figure 4-1. Originally, control cabinet included contactor, relay, capacitor, resistor, transformer, and rectifier. With rapid development of computer and electronics as well as wide application of VVVF control technology, optical fiber communication technology, serial communication and network technology in lift, application of big scale integrated circuit makes control cabinet smaller in size, stronger in function and more reliable in operation. Currently, control cabinet is composed of computer control panel and frequency inverter, to control AC motor in terms of frequency, voltage and speed (VVVF). No: Date: Page...