S350變頻恒壓控制系統(tǒng)

1、系統(tǒng)特點

      S350變頻調速系統(tǒng)將管網(wǎng)壓力作為控制對象。壓力值由變頻器面板給定（S350有多種給定通道），可根據(jù)用氣設備的實際需要，在空壓機的最高允許工作壓力內自由設定。裝在儲氣罐出氣口的壓力變送器將儲氣罐的壓力轉變?yōu)?~20mA電流信號送給S350內置PID調節(jié)器，與壓力給定值進行比較，并根據(jù)差值的大小控制變頻器的輸出頻率，調整電動機的轉速，從而使實際壓力始終維持在給定壓力。S350內置PID具有穩(wěn)定性高、調試簡單的特點。

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