高速计数器 meaning in Chinese
high-speed counter
Examples
- Utilizing the internal high - rate counter in fx2n series plc and simple external circuit , the author real - timely measures the hydro generator frequency with high accuracy and reliability , which meets the engineering application requirements
作者利用fx2n系列plc内部的高速计数器和简单的外围电路，实现了对机组频率的测量，满足了工程实践中对测频可靠性、实时性和精度的要求。 - Due to the low mechanical efficiency and long circulating period of the down - charging system of cold bed in bar production line , this paper puts forward the improving project , which adopts ethernet supplemented by dp network , applies the fm350 - 2 advanced counter and suitable maths model and combines the technique of the transducer and hydraulic pressure drive control to realize auto - control
摘要针对棒材生产线上冷床下卸钢系统机械效率低、运行周期长，不能适应快节奏生产的现状，采用以工业以太网为主、 dp网为辅的网络通讯，应用西门子fm350 - 2高速计数器，通过有效的数学计算模型，结合变频器和液压传动控制技术，实现网络自动化控制。 - There is difference frequency measurement requirement for every part of pid regulating , difference between dynamic quality and static quality in response time and accuracy . according to these , it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed , the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed , an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor . according to the drive character of five phase of response step motor , a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor
本文利用s7 - 200plc自身的特点设计了频率测量单元，根据pid调节各个环节的特点，以及调速器动态特性、静态特性对频率测量的实时性和精度要求的不同，利用s7 - 200plc基本单元中内置的高速计数器以及相应的外围放大整形、分频电路，实现了水轮发电机组频率的测量；在软件上，对微机调速器的整个程序框架、并联pid的离散化过程进行了分析，选用改进的pid算法实现了变参数、变结构的pid调节模式；调速器的机械液压随动系统具有步进电机电液转换元件，采用五相反应式步进电机，根据其驱动特性设计了变频调压驱动器，实现plc与步进电机驱动器之间数字接口。