庫存產品丹佛斯DANFOSS變頻器變頻器液晶顯示屏上(shang)出現“alarm 13"報警,并能手(shou)動復位(wei),不升速時正常(chang),加速時就報警,重新送電(dian)(dian)(dian)(dian),沒有聽到內部繼電(dian)(dian)(dian)(dian)器吸合的聲(sheng)音,懷疑(yi)為(wei)充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)阻(zu)r401并聯的接觸(chu)器km1短路導致電(dian)(dian)(dian)(dian)流過(guo)大引起,用(yong)萬用(yong)表測km1線(xian)圈(quan)兩(liang)端(duan)電(dian)(dian)(dian)(dian)壓正常(chang),停(ting)電(dian)(dian)(dian)(dian)測線(xian)圈(quan)直(zhi)流電(dian)(dian)(dian)(dian)阻(zu),為(wei)無窮(qiong)大,換新線(xian)圈(quan)后上(shang)電(dian)(dian)(dian)(dian)試車,一切正常(chang)。
庫存產品丹佛斯DANFOSS變頻器
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(FWD/REV)鍵改變在操作器顯示(shi)屏上(shang)用(yong)箭頭指示(shi)的(de)電機旋轉方向,(START)鍵用(yong)于啟(qi)動(dong)通過(STOP/RESET)鍵停動(dong)的(de)VLT變頻器。該鍵始(shi)終(zhong)處于狀(zhuang)態,但不能超越由端子發出的(de)停止命(ming)令。
操作步驟:
1、 按(MENU)鍵進入(ru)功能(neng)菜(cai)單。
2、 按()或(<>)鍵選擇參數。
3、 按(CHANGE DATA)鍵進入數據改(gai)變模式。
4、 按()鍵改變數據值(zhi)。
5、 按(OK)鍵存儲改(gai)變(bian)的(de)數據(ju)。
6、 按(DISPLAY/STATUS)鍵返回到(dao)正常模(mo)式。
特點
采用冷卻理念和(he)有涂(tu)層的 PCB,可在環境溫度為 50°C 的多種環境下穩定地工作
帶(dai)自動(dong)能(neng)量優化功能(neng),可(ke)節(jie)約 5–15% 的能(neng)源(yuan)并(bing)降低運行成(cheng)本
配置(zhi)可拆(chai)卸(xie)冷卻(que)風機,清洗快捷,延(yan)長使用壽命
內置 PID 控(kong)制器,無(wu)需外部控(kong)制器
帶有增強型(xing)數字顯示(shi)屏和(he)應用宏選擇向導(dao),調試快捷簡(jian)便(bian)
丹佛斯變頻器變頻器在運行中常見的故(gu)障有(you):多種故(gu)障錯亂出(chu)現(報(bao)警(jing)(jing)5、6、7、8)接地故(gu)障(報(bao)警(jing)(jing)14)、電(dian)機(ji)uvw相(xiang)丟失(shi)(報(bao)警(jing)(jing)31。32。33)、通訊(xun)故(gu)障等。
1、開關(guan)電源損壞
這(zhe)是眾多變頻(pin)器常發(fa)生(sheng)的故(gu)(gu)障(zhang),通常是由于開關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)的元器件損壞(huai)或(huo)負載發(fa)生(sheng)短(duan)路造成的,丹佛斯變頻(pin)器采用了新型脈寬集成控制器uc2844來(lai)調整開關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)的輸出,同時uc2844還帶有電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流檢測,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓反(fan)饋等功(gong)能。當發(fa)生(sheng)無(wu)顯示,控制端子無(wu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓,24v風扇(shan)不運轉(zhuan)等現(xian)象時我們首先應該考慮開關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)是否損壞(huai)(一(yi)般(ban)為uc2844或(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻損壞(huai))。如果不能判(pan)斷是否電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)故(gu)(gu)障(zhang),可(ke)以外接24v電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)進(jin)行(xing)測試,測試結果一(yi)切正(zheng)常可(ke)以判(pan)定(ding)為電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)故(gu)(gu)障(zhang)。
庫存產品丹佛斯DANFOSS變頻器