Control of alternating current motor speed’s variation is needed to support production process in industry. The goal of this paper is to know the performance of prototype control of alternating current motor speed’s variation based on MC (Magnetic Contactor), PLC (Programmable Logic Controller) and microcontroller using remote control. The method of this paper was development aproach which consisted of need analysis, designing hardware and software, manufacturing of prototype hardware and software and testing of prototype performance. Data is collected by performance observation of prototype when it tested, then the data analyzed descriptively. The results of this paper was prototype control of alternating current motor speed’s variation based on MC, PLC and microcontroller using remote control had good performance, shown by its work performance that fit with performance as planed, the distance of remote control signal’sudreceiving by receiver are relative longer, that on the straight position (00) it has distanceud23 meters, on position 900 the distance is 5 meters, on position 800 the distance is 10 meters and on position 1800 the distance is 3.9 meters.ududKeywords: Alternating current motor speed’s variation, MC, PLC, microcontroller , remote control.ud
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机译：需要控制交流电动机转速的变化以支持工业生产过程。本文的目的是了解基于MC（电磁接触器），PLC（可编程逻辑控制器）和使用远程控制的微控制器的交流电动机转速变化的样机控制性能。本文的方法是开发方法，包括需求分析，硬件和软件的设计，原型硬件和软件的制造以及原型性能的测试。通过测试原型时的性能观察来收集数据，然后对数据进行描述性分析。本文的结果是基于MC，PLC和微控制器的交流电动机转速变化的样机控制使用遥控器具有良好的性能，其工作性能与计划的性能吻合，遥控信号的接收距离相对较长，在直线位置（00）上具有距离 ud23米，在位置900上具有5米，在位置800上具有10米，在位置1800上具有3.9米。 ud ud关键字：交流电动机转速变化，MC，PLC，微控制器，远程控制。 ud
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