品牌:施耐德 | 規格:140DDI15310 | 材質:140DDI15310 |
產地:法國 |
140DDI15310
140DDI15310
140DDI15310
電流內環轉矩控制直接由變頻器內部完成,未在本圖中注明。圖中描述的是速度控制閉環,從模擬輸入信號(按照各變頻器的說明書來決定是電流或電壓信號,並且需設置好相應的DIP開關和參數),通過高和低頻率的限定,即與從速度傳感器反饋回來經過濾的信號相比後,進入PID控制(PID的參數可在變頻器參數中整定),再通過斜率發生器(包括RAMP ON TIME / RAMP DOWN TIME)後,直接進入電流環控制電機的輸出。如此就構成了變頻器的閉環控制。
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