The composition, functions, PLC model selection and program design of PLC plus frequency speed- regulating system on electroslag furnace are briefly introduced.
简要介绍了电渣炉PLC加变频调速控制系统的组成、功能及PLC的选型和程序设计。
This paper discusses the slip frequency control of variable frequency regulating speed system, and analyses the shortage of this control way.
本丈对转差频率控制的变频调速系统进行讨论，分析这种控制方式所存在的不足；
This paper discusses the SPWM frequency conversion regulating system formed with 80c196mc and IPM intellective power model.
本文讨论了由80c 196MC和智能功率模块IPM组成的SPWM变频调速系统。
By using the frequency converting speed regulating system the requirements of melt spinning on electric transmission were satisfied.
采用变频调速系统可以满足熔体纺丝对电气传动的要求。
This paper analysis the energy saving mechanism of frequency converted regulating speed ventilator, and some energy consumption computing methods of supply air filter in VAV system.
本文对变频风机的节能机理进行了分析，对变风量系统中过滤器的能耗的几种计算方法进行了讨论。
When the technique of regulating speed with frequency conversion is applied to the hot water system in construction the system should be sealed.
变频调速技术应用于建筑热水供应系统时，该热水系统为闭式。
Designed an automatic lifting and speed regulating system by adopting frequency converter and PLC.
采用了变频器、可编程序控制器等器件，设计了乐池自动升降和自动调速系统。
Fully automatic frequency variation speed regulating NC die cutting production line control system;
全自动变频调速、数控冲切生产线控制系统；
Technical measures of using emergency shut valve and selecting regulating frequency pump are put forward in this paper, assuring function elaboration and running reliability of the Shared system.
提出了采用紧急关闭水阀和合理选用变频泵等技术措施。为共用系统的功能发挥和运行可靠提供了保障。
Technical measures of using emergency shut valve and selecting regulating frequency pump are put forward in this paper, assuring function elaboration and running reliability of the Shared system.
提出了采用紧急关闭水阀和合理选用变频泵等技术措施。为共用系统的功能发挥和运行可靠提供了保障。
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