1) Variable Velocity DC Air conditioner
全直流变速空调
2) full digital DC speed adjusting
全数字直流调速
1.
Aiming at the disadvantages of conventional analogue DC speed adjusting device in mine hoists,this article introduces the application of full digital DC speed adjusting device based on 6RA70,and gives the system's hardware configuration and software design.
针对提升机传统模拟式直流调速系统存在的不足,介绍了一种基于西门子6RA70全数字直流调速装置的矿山提升控制系统,给出了提升传动控制的硬件配置和软件设计方案。
4) DC inverted frequency air-conditioner
直流变频空调
1.
The result show that this system have the advantage of simple structure,high control precision and low cost,which is suit for the home DC inverted frequency air-conditioner application.
试验结果表明,该系统具有结构简单可靠、控制精度高、成本低廉的优点,适于家用直流变频空调的应用。
5) DC speed regulating
直流调速
1.
Traditional electro-excavator control systems have some disadvantages such as dated technology,high failure,low efficiency,high run cost and so on,thus a digital control DC speed regulating device is designed and developed for electro-excavator.
本文针对传统的挖掘机电控系统存在技术落后、故障高、动态效率低、运行成本高、耗能高等缺点,设计了一套基于数字控制的挖掘机直流调速系统,系统采用小功率的CT-M75R驱动器,驱动12只大功率晶闸管组成的正反全控桥主回路,在控制回路中将电压反馈与电流反馈信号接入CT-M75R驱动器,利用驱动器内部丰富的软件功能,编程实现电压与电流的综合反馈。
2.
A full-digital DC speed regulating control system was designed for double housing planer.
设计了一种龙门刨床全数字直流调速系统,该系统采用西门子全数字直流调速装置(6RA70),取代原来的F-D模拟调速系统,实现了龙门刨床工作台的无级调速;用可编程控制器(PLC)代替大量的继电器、接触器,大大减小了系统的占地面积。
3.
In order to let student grasp the digital control technique and train their ability of computer application,improvement that introduces com- puter into DC speed regulating experiment teaching system is mainly introduced in this paper.
数字控制技术在电气传动领域应用越来越广泛，为使学生掌握以计算机为核心的数字控制技术，培养计算机应用的能力，本文主要介绍了计算机引入直流调速教学实验系统的改革尝试。
6) DC speed adjustment
直流调速
1.
Double closed-loop DC speed adjustment was adopted and PLC was used to monitor system states and running positions.
同时介绍了吕家坨矿新副井提升机电控系统,该电控系统采用双闭环直流调速,全数字调节,由PLC对系统各种状态和运行位置进行监视,完成对系统的位置、速度和安全制动的控制,实现了提升机在各种工况下的安全可靠运行。
2.
Siemens 6RA70 DC speed adjustment and Mitsubishi PLC are used for the technical innovation of the double-housing facing machines.
采用西门子6RA70直流调速装置及三菱PLC对原龙门刨床进行技术改造。
补充资料：全受全归
1.语出《礼记．祭义》:"父母全而生之，子全而归之，可谓孝矣。不亏其体，不辱其身，可谓全矣。"封建礼教认为人的形体来自父母，应当以完全无亏的身体，还之父母。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条