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mapojiang
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樓主  發(fā)表于: 2017-08-08 22:40
問(wèn)題描述:315-2DP  用ET200M通訊,共有9個(gè)擴展機架和4臺變頻器。擴展機架上只有輸入輸出模塊,機架較多用了2個(gè)485中繼器。有4臺車(chē)工作時(shí)要移動(dòng)機架上用的軟芯DP電纜,軟電纜和動(dòng)力走在一起。前段時(shí)間有臺車(chē)的IM153BF燈閃爍,以為通訊電纜壞了,主要這臺車(chē)沒(méi)電纜了用的紫色硬芯電纜,就把電纜換了,故障消失。用了兩天故障又出現了,更換153后還不行就把DP接頭換了,故障消失。又用了一天,又出現同樣的故障。斷電又送電故障消失。消失后另一臺車(chē)變頻器報欠壓故障,復位后又換一臺車(chē)報欠壓,測電壓正常。復位后繼續運行,其中一臺車(chē)有個(gè)信號老是無(wú)故消失又恢復。還有一臺車(chē)有個(gè)輸入信號,開(kāi)關(guān)閉合后10秒左右PLC才有信號,過(guò)會(huì )兒又正常了。在線(xiàn)監控時(shí)發(fā)現有的輸入點(diǎn)信號快速閃爍,有時(shí)又正常。有時(shí)PLC還接收到急停信號導致空開(kāi)跳閘。這些問(wèn)題都是最近一周發(fā)生的。有沒(méi)有老師處理過(guò)類(lèi)似問(wèn)題?問(wèn)題出在哪里?以前是正常的。
mapojiang
級別: 探索解密
精華主題: 0
發(fā)帖數量: 52 個(gè)
工控威望: 182 點(diǎn)
下載積分: 1494 分
在線(xiàn)時(shí)間: 28(小時(shí))
注冊時(shí)間: 2012-12-01
最后登錄: 2023-11-10
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1樓  發(fā)表于: 2017-08-08 22:41
手機打字,描述不夠清楚,望見(jiàn)諒。

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