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廈門市泰尼電器有限公司
主營產(chǎn)品： AB模塊PLC |
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廈門市泰尼電器有限公司
主營產(chǎn)品： AB模塊PLC |
| 參考價 | 面議 |
1786-BNCP==1786-BNCP
==
1.2 實例
(1) 一臺LG-IS3-4 3.7kW變頻器一啟動就跳“OC"
分析與維修:打開機蓋沒有發(fā)現(xiàn)任何燒壞的跡象，在線測量IGBT(7MBR25NF-120)基本判斷沒有問題，為進一步判斷問題，把IGBT拆下后測量7個單元的大功率晶體管開通與關(guān)閉都很好。在測量上半橋的驅(qū)動電路時發(fā)現(xiàn)有一路與其他兩路有明顯區(qū)別，經(jīng)仔細檢查發(fā)現(xiàn)一只光耦A(yù)3120輸出腳與電源負極短路，更換后三路基本一樣。模塊裝上上電運行一切良好。
(2) 一臺BELTRO-VERT 2.2kW變頻通電就跳“OC"且不能復(fù)位。
分析與維修:首先檢查逆變模塊沒有發(fā)現(xiàn)問題。其次檢查驅(qū)動電路也沒有異?，F(xiàn)象，估計問題不在這一塊，可能出在過流信號處理這一部位，將其電路傳感器拆掉后上電，顯示一切正常，故認為傳感器已壞，找一新品換上后帶負載實驗一切正常。公司 名稱：廈門泰尼電氣有限公司
固定 ：
聯(lián) 系 人：張亮
傳 真：【請備注“張亮"收】
商 務(wù) ： 2314094943
手 機：
郵 箱：2314094943
需要可以給你滿意的價格
公司地址：廈門市海滄區(qū)海滄街道濱湖一里7號2008室
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