作为传动控制系统的基本单元，直流传动调速装置采用带微处理器的全数字控制系统。
For DC drive control device as basic unit of drive control system, the digital control system with micro-processor is used.
该文介绍了西门子全数字直流调速装置(6ra70)和可编程逻辑控制器(SIMATIC S7 - 300)首次在码垛电磁铁系统中的应用。
This paper introduce the application of Siemens digital direct current timing device (6ra70) and program logical controller (SIMATIC S7-300) in piling bed electromagnet for the first time.
根据电流双闭环调速原理，采用6ra70直流全数字调速装置与P LC结合，控制材轧机电系统。
According to the adjusting principle of current bi-colsed, PLC and 6ra70 digital DC speed regulating device is adopted, which controls over the system of the rolling mill.
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