包头 140DDI15310《140DDI15310》

140DDI15310
140DDI15310
140DDI15310



电流内环转矩控制直接由变频器内部完成，未在本图中注明。图中描述的是速度控制闭环，从模拟输入信号（按照各变频器的说明书来决定是电流或电压信号，并且需设置好相应的DIP开关和参数），通过高和低频率的限定，即与从速度传感器反馈回来经过滤的信号相比后，进入PID控制（PID的参数可在变频器参数中整定），再通过斜率发生器（包括RAMP ON TIME / RAMP DOWN TIME）后，直接进入电流环控制电机的输出。如此就构成了变频器的闭环控制。

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