IC697ACC730
IC697ACC730
IC697ACC730
变频驱动方案
改造内容：取消原有直流调速系统，重新采购高压变频电机与我司高压变频器。其中变频器的控制与反馈信号通过硬线与现场操作台连接，由操作台控制变频器的启停。操作台显示屏为三菱一体式触摸屏，控制核心为两台三菱可编程控制器，其中一台主控，负责挤出机的主程序，第二台为监控，负责信号打点、报警和后备保护。两台PLC有主有从，互有分工，相互监视实现了安全回路的双线制。高压变频器型号为我司HD92-J100/630-DB，控制方式采用磁链闭环矢量控制，同时具备开闭环自动切换功能，当电机编码器掉线，变频器可以自动切换到开环矢量控制，保证生产的连续性。
操作台PLC与变频器之间采用硬线连接方式，通过4~20mA模拟量信号调速，驱动电机在0~50Hz范围内运行。具体接口信息如下图所示：
IC697ACC730
厦门光沃自动化设备有限公司
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