改变了继电器控制系统中机械式的鼓形控制器或凸轮控制器步数和输出点数有限、体积大、重量大、成本高的缺点。
It changes the disadvantage that drum or CAM controller in relay control total steps, output points are limited, large volume and weight, high costing.
本文提出电流继电器控制绕线式异步电动机起动电路改进方法，并对改进电路优劣进行了分析。
A method in the improvement of current relay controls winding asynchronous motor starting circuit is put forward, and the merit, demerit of it are described in the paper.
NALC型气体继电器检测台，采用最新的嵌入式系统控制技术，综合用户的实际需求而推出的新一代气体继电器试验检测系统。
NALC type automatic gas relay test bed, using the latest embedded system control technology, integrated user's actual needs and introduced a new generation of gas relay test detection system.
设计一种基于光电池的核废料沉淀罐沉淀界面位置检测装置，采用分布式组态plc系统作为控制终端，继电器控制回路作为冗余控制系统。
A distributive configuration PLC system was used as control terminal of the detection device, while a relay loop as a redundancy control system.
C 1：数字式可编程控制器以一个贮备程序含8个分节，采用此控制器的熔炉并设置了超温度保护继电器。
C1: Digital programmable control with one stored program of 8 segments. The furnaces that use this control also utilize a mechanical Over Temperature Protection relay.
因此，用PLC对采用继电器控制的旧式机床进行设备改造具有很重要的现实意义，并为构成集散式控制系统打下基础。
So taking the place of the relays in old-type lathe with PLC is of momentous current significance and lays a foundation of DCS.
因此，用PLC对采用继电器控制的旧式机床进行设备改造具有很重要的现实意义，并为构成集散式控制系统打下基础。
So taking the place of the relays in old-type lathe with PLC is of momentous current significance and lays a foundation of DCS.
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