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woshisunu
虛心求教
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樓主  發(fā)表于: 2012-07-10 10:12
西門(mén)子200與4個(gè)施耐德變頻器還有三個(gè)西門(mén)子變頻器通訊 profibus dp
變頻器正常運行時(shí) 遠程控制時(shí)  拔下所有DP接頭 時(shí) 通訊中斷 變頻器運行正常 但是當重新插上DP接頭時(shí) 三臺遠程控制的施耐德變頻器停止運行 報網(wǎng)絡(luò )故障 另外三臺西門(mén)子變頻器可以運行 也報網(wǎng)絡(luò )故障。
請問(wèn)一下 施耐德變頻器是否有檢測到通訊異常自動(dòng)停機的自我保護,為什么拔下DP接頭時(shí)不停機?

[img] http://photo.renren.com/photo/sp/hesSrO6deGp[/img]
hanqin
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1樓  發(fā)表于: 2012-07-10 11:25
變頻器是非智能從站,主站不發(fā)送命令從站不會(huì )自動(dòng)發(fā)送信息,所以拔去dp插頭可以正常運行,當再次插上dp插頭是主站會(huì )給從站通信錯誤信號,想ET200s就是智能從站了,拔掉dp插頭會(huì )馬上報警停止運行的,個(gè)人理解,請指點(diǎn)。

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