The closed circuit control system with frequency conversion for adjusting speed controlled by industrial computer is introduced with its control function and realization.

文章介绍了一种由工业计算机控制的变频调速闭环控制系统，同时介绍了该系统的控制功能和电气实现。

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Using alternating dynamotor PWM frequency conversion governing controlled by single chip computer can realize digitized control.

采用单片机控制交流电机PWM变频调速，可实现全数字化控制。

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The automatic production system is computerized by the central computer and frequency modulation and motor speed change are made by front-end control CARDS.

基于计算机控制的楞纸板自动生产系统，以主控计算机为自动控制核心，通过前端控制卡，实现了对变频器进行调节，和对电动机调速。

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