查询词典 automatic control

There are keyboard and liquid crystal to demonstrate window on the frequency converter's control of face, but it can only realize manual operation, for realize the automatic control so we introduce SCM technology, as the result, between MCU and the frequency changer data communication can enhance the control ability and area of the frequency changer.

随着变频调速技术的发展，变频器调速已成为交流调速的主流，在化纤、纺织、钢铁、机械、造纸等行业得到广泛的应用。变频器控制面板上配有键盘及液晶显示窗口，但只能实现手工操作，为了进行自动化控制，因此引进单片机技术，实现单片机与变频器之间的数据通信，提高变频器的控制能力和控制范围。

Spinning frame control system of ring spinning frame than the complexity of many machines on the programmable logic controller applications required to meet two requirements: First of all, before and after the rollers are strict synchronization, realize twist drawing multiples and precision control to ensure that high-count yarn yarn quality; followed by the ring through the elimination of the transmission gears, servo control using advanced technology to achieve the electronic roll forming technology, enabling organizations to simplify the machinery, production speed, as well as the yarn count and yarn tube forming the automatic adjustment.

细纱机控制系统的环纺比许多机器的可编程逻辑控制器必须符合两个条件应用的复杂性框架：首先，前后辊严格同步，实现扭曲绘图倍数和精度控制，以确保高支纱的成纱质量，其次是环通过消除传动齿轮，采用先进的伺服控制技术实现的电子滚压成形技术，使企业简化机械，生产速度，以及支数和纱管形成了自动调整。

The Company mainly operates and acts as the agent for the following products including:frequency conversion cabinet,frequency converter,soft starter,automated control system,series of low-voltage circuit breaker,contactor,control relay,protective relay,knife switch,isolating switch,capacitor,dual power switching unit,low-voltage mutual inductor,low-voltage fuse,high-voltage vacuum circuit breaker,high-voltage mutual inductor,high-voltage load switch,high-voltage fuse,microcomputer integrated protection device and components and parts including automatic control products, Lights,button,terminal,electric meters and electromechanical products including pump,valve fan,motor,voltage transformer,wires and cables.

公司主要经营及代理的产品有：变频柜、变频器、软启动器、自动化控制系列及系列低压断路器、接器、控制继电器、保护继电器、刀开关、隔离开关、电容器、双电源切换装置、高压真空断路器、高低压互感器、高压负荷开关、高低压熔断器、微机综合保护装置及自动化控制产品、信号灯、按钮、端子、电度表等元器件及水泵、阀门、风机、电机、变压器、电线电缆等机电产品约1000多个品种、20000余种常用规格。

A invariable -angle control circuit of parallel resonance converter which can get high precise control of inverter operating state is designed. Using the technique of phase-lock loop, the circuit implements automatic tracking to inverter operating frequency and constant control of capacitive power factor angle.

论文设计了能在频率自动跟踪的基础上实现高精度的逆变器运行状态控制的并联型逆变器定角控制电路，该电路采用锁相环技术，实现了逆变器工作频率的自动跟踪和容性功率因数角恒定控制。

Taking Master CAM as an example, the paper introduces the technique of postposition dispose for numerical automatic control programming based on CAD/CAM integration, and explains by the example the process of postposition dispose for numerical control programming, generating the numerical control programming, and then producing and machining.

以Master CAM为例，介绍了基于 CAD /CAM一体化的数控自动编程加工中的后置处理技术，以及在当前条件下如何进行数控加工后置处理。

In association with the improvement design practices on winding equipment for main cable of large span cable bridges liking Shantou Gulf Bridge, Xiling Yangtse River Bridge and Xiamen Haicang Bridge, some contents are systematically described on the basis of electric control system of ZLC series winding machine for main cable, including mechanism composition of the winding machine for main cable, mathematical relationship between rotation speed of winding system and travel speed of the winding machine, work principle of accurately matching control on the two speeds with PLC and frequency converter, wireless measurement and monitor of winding system tension, automatic override control on cable clamp as well as practical effect of a real bridge application.

结合对汕头海湾大桥、西陵长江大桥和厦门海沧大桥等大跨度悬索桥的主缆缠丝施工设备－主缆缠丝机的改进设计实践，以ZLC系列主缆缠丝机的电气控制系统为基础，系统介绍了主缆缠丝机的机构组成、缠丝系统旋转速度与缠丝机行走速度之间的数学关系、采用PLC及变频器对两速度进行精确匹配控制的工作原理、缠丝系统张力的无线测量、监控、索夹的自动跨越控制以及实桥的应用效果。

At present, the relay contactor control model is also the main stream for the simple control system (such as, multi-motor sequence start, automatic two-speed motor, etc.) in industrial present control.

目前，在工业现场控制中，对于简单控制系统(如：多台电机的顺序启动，双速电机的自动控制等)仍然以继电接触器控制模式为主。

The control system of the processing equipment is designed totally according to the request of automatic manufacture, and the dissertation puts forward the new control scheme: the superordinate computer supervising system which is composed of PC and configuration software MCGS, and basic control system which is composed of PLC, touching screens, and various electronic and atmospherical components.

论文详细描述了各部分的功能。其次，根据控制方案和现场设备的控制要求，对下位机控制系统进行硬件配置和软件设计。PLC作为主控单元，论文对其型号选择、I／O设计、外部硬件连线等进行了详细介绍，采用顺序控制方法设计了系统的工作流程图和PLC程序。

In this paper,based on the development of automatic packaging production line of cathodal copper control system,for accurate measurement of copper weight in online in the project,studied the real-time communication between the industrial control computer and METTLER TOLEDO electronic balance,and through VB Control designed communication procedures to achieve data communications and data collection.

通过阴极铜自动包装生产线控制系统的研制，针对该项目中在线精确计量铜垛重量，研究了工业控制计算机与梅特勒-托利多电子秤之间的实时通信，并通过VB控件利用两种方法设计了通信程序，实现了数据通信和数据采集。

According to the related new state regulations on explosive production, we have proposed a management-control integration mode based on the original automatically con- trolled emulsive explosive production line, that is, the combination of video control and on-site DCS automatic control.

根据国家关于炸药生产的新规定，在原来的乳化炸药自动控制生产线的基础上，提出了管控一体化的模式，即视频控制和现场DCS自动控制相结合，并与企业的管理网络互连，实现全厂级的数据共享和实时控制。

The French are not suggesting a new EU treaty, but they have plenty of other wheezes.

法国人并不是在建议签署一个新的欧盟条约，但他们有许多其他的阴谋。

This letter was written by my brother.

这封信是我弟弟写的。