3HAC026253-001

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描述

3HAC026253-001

針對電磁方面造成的振動,應(yīng)從電源入手開始檢查。檢查三相電壓是否平衡,用鉗形電流表測量三相電流是否平衡,有沒有存在單相運行,生產(chǎn)中發(fā)現(xiàn)電動機接線盒內(nèi)端頭接線因緊固不牢,經(jīng)常燒斷,造成單相運行,應(yīng)加強此處檢查并進行消除。若在用鉗形電流表測量時,發(fā)現(xiàn)三相電流不平衡,且表針擺動時高時低,說明轉(zhuǎn)子有籠條斷裂現(xiàn)象。此時應(yīng)立即停止電動機運行,切斷電源,抽出轉(zhuǎn)子進行檢查,修復(fù)。另外,還應(yīng)測量三相定子繞組的電阻值,檢查繞組是否對稱,若電阻值不平衡,則說明有開焊部位,也應(yīng)抽出轉(zhuǎn)子后進行檢查,重新焊接。電機的結(jié)構(gòu)同時包含電氣和機械兩部分,也可以說是電氣和機械的結(jié)合點。所以說,它的故障要一分為二的分析。對電機的振動故障原因也要分成兩部分。轉(zhuǎn)子在物理結(jié)構(gòu)上不是完全的的中心對稱、軸對稱。在轉(zhuǎn)動時轉(zhuǎn)動慣量的不平衡導(dǎo)致振動。振動情況根據(jù)轉(zhuǎn)速而變化。比如低速情況下振動很小,高速時振動大的情況;反過來也有低轉(zhuǎn)速下振動大,高轉(zhuǎn)速時振動變小的情況。另外,轉(zhuǎn)軸軸承同心度同軸度差也會引起振動,從設(shè)計上改用空氣軸承可以改善。
調(diào)整轉(zhuǎn)子的轉(zhuǎn)動慣量或軸承同心度度同軸度是很專業(yè)的工作,除了是原產(chǎn)廠家很難操作?,F(xiàn)實中一般的解決辦法就是在固定電動機的時候配置減振彈簧、減振橡膠等。

產(chǎn)品承諾:
保?證?全新原裝進口,
保?證?安全準(zhǔn)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
品牌:ABB???,AB??,GE,FOXBORO,本特利,英維思,伍德沃德,西屋,瑞恩,施耐德,西門子,摩托羅拉,安川。力士樂。ACSO,橫河等進口品牌。 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA
? 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實力庫存商家

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專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊

PLC模塊,可編程控制器,CPU模塊,IO模塊,AI模塊,通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅

15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實力庫存商家


選擇深圳長欣,選擇放心,售后無憂大量現(xiàn)貨,當(dāng)天順豐發(fā)貨!
主營:本特利,英維思,伍德沃德,??怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機器人系統(tǒng)配件,大型伺服系統(tǒng)備件。

先介紹幾點經(jīng)驗。
1、先通讀一遍“系統(tǒng)手冊”(不管能不能看懂,先了解個大概,以便學(xué)習(xí)編程時查找);
2、由位控邏輯入手,逐漸增加定時、計數(shù)等條件,把或、與、非關(guān)系理順;
3、進而練習(xí)整數(shù)運算、實數(shù)運算、類型轉(zhuǎn)換;
4、量程轉(zhuǎn)換、PID調(diào)節(jié)回路的建立及P、I、D參數(shù)的理解(最好是有個物理回路驗證,比如變頻器+電機+測速傳感器);
5、循環(huán)、順序、跳轉(zhuǎn)等程序控制(盡量避免跳轉(zhuǎn),非跳不可時也是跳的越近越好);
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機器人配件DSQC系列和Motorola MVME系列,GE 卡件 模塊 驅(qū)動器系列為主攻。各位電工朋友可根據(jù)自己的條件選擇適合自己的PLC品牌,由于PLC的基本框架大同小異,學(xué)會一種至于其它的學(xué)習(xí)起來也就簡單了。