三菱伺服驅動器 MDS-D-SP-80

　·在電梯首尾處各安裝一支紅外傳感器開關，乘客通過電梯時，紅外傳感器開關被觸發(fā)并發(fā)出開關信號給變頻器；

　　·有客流時，紅外傳感開關被觸發(fā)，變頻器立即加速到多段速頻率2，并使電梯高速運行；

　　·電梯高速運行時，變頻器內(nèi)置計時器開始計時，若在計時的時間段內(nèi)再無乘客通過電梯，計時結束后變頻器將自動切換到多段速頻率1，進行低速運行；

三菱伺服驅動器 MDS-D-SP-80 

·若在計時器計時期間，有乘客重新觸發(fā)光電開關，計時器將重新計時；

　　·對電梯上行和下行，外圍控制采用開關互鎖，保證扶梯系統(tǒng)的正常工作；

　　·為消耗下行，或者制動過程產(chǎn)生的多余能量，需在變頻器上加裝制動電阻。

　　采用三晶矢量通用型變頻器驅動電梯主機，不但能夠滿足系統(tǒng)啟動運行平穩(wěn)、啟動轉矩大、過載能力強、轉速調(diào)節(jié)精度高的要求；而且電機通過變頻拖動，可減少機械磨損，延長使用壽命，工作更加安全可靠，因為調(diào)節(jié)電機轉速空間大，使得系統(tǒng)節(jié)能效果更為顯著。

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