描述
6AV3688-3ED13-0AX0
因目前变频器在工业生产中日益广泛的应用，所以了解变频器的结构，主要器件的电气特性和一些常用参数的作用及其常见故障对于实际工作越来越重要。今天小编就带着大家来了解一下关于变频器控制电路的一些小知识。给异步电动机供电（电压、频率可调）的主电路提供控制信号的网络，称为控制回路，控制电路由频率，电压的运算电路，主电路的电压，电流检测电路，电动机的速度检测电路，将运算电路的控制信号进行放大的驱动电路，以及逆变器和电动机的保护电路等组成。控制回路有开环和闭环的区别。无速度检测电路为开环控；在控制电路增加了速度检测电路，即增加速度指令，可以对异步电动机的速度进行更精确的闭环控制。
产品承诺：
保 证 全新原装进口,
保 证 安全准时发货，
保 证售后服务质量，
优势价格，大量现货。
主营DCS系统配件
机器人系统配件
大型伺服系统配件
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