描述
6ES7151-8FB01-0AB0
先進行變頻器的空載試運行
?????? 首先檢查變頻器的所有接線是否正確無誤,變頻器的輸出端先不要接電動機,對變頻器先進行空載試驗。通電前認真閱讀變頻器用戶手冊,熟悉相關(guān)功能及設(shè)定、操作方法,在此基礎(chǔ)上通電。空載試運行目的有兩個:一是通過實際操作來熟悉鍵盤及有關(guān)的操作方法,如進行正、反轉(zhuǎn)、停止等操作,并觀測變頻器的動作、溫升是否正常。二是結(jié)合實物來熟悉相關(guān)功能的設(shè)定、操作方法,設(shè)定后可試試看基本功能的動作狀態(tài)及動作過程,如上升、下降時間設(shè)定等。在這基礎(chǔ)上再看外接端子的信號、控制動作是否正常,如順時針旋轉(zhuǎn)電位器或改變頻率給定電流時,變頻器的輸出頻率的改變是否與給定信號同時變化。然后用變頻器帶電動機空載試運行
?????? 變頻器空載試運行正常后,可接上電動機進行空載試運行。在接電動機前,一定要確認電動機的各項技術(shù)指標是合格的。電動機不要帶負載。然后讓變頻器驅(qū)動電動機轉(zhuǎn)動,觀察是否正常,如電動機旋轉(zhuǎn)方向是否合乎要求。把頻率給定電位器逆時針旋至左端0Hz處,然后接通變頻器的正轉(zhuǎn)開關(guān)(FWD),慢慢順時針旋轉(zhuǎn)電位器,使給定頻率逐漸增大,觀察電動機的轉(zhuǎn)動情況,在最大頻率的50%時,讓電動機轉(zhuǎn)動幾分鐘,并觀察下電壓、電流的數(shù)值,然后再讓變頻器的輸出頻率達到最大頻率,再讓電動機轉(zhuǎn)動幾分鐘。再把輸出頻率降下來,降到最大頻率的75%、25%處,讓電動機轉(zhuǎn)動一會,再把輸出頻率調(diào)高,然后斷開正轉(zhuǎn)開關(guān)(FWD),看電動機是否按設(shè)定的減速時間停下來。這一過程基本不用進行參數(shù)設(shè)定,用變頻器出廠時的參數(shù)預(yù)設(shè)值可行了。
產(chǎn)品承諾:
保?證?全新原裝進口,
保?證?安全準時發(fā)貨,
保?證售后服務(wù)質(zhì)量,
優(yōu)勢價格,大量現(xiàn)貨。
主營DCS系統(tǒng)配件
機器人系統(tǒng)配件
大型伺服系統(tǒng)配件
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