SINAMICS G120: PM230, PM240, PM250, PM260 and PM340 功率模塊的接地故障檢測問題,接地故障檢測可能出現(xiàn)的錯誤:

在沒有負(fù)載的情況下,如果功率模塊的輸出電纜達(dá)到最大長度,且開關(guān)頻率在8K以上,變頻器和電機(jī)的某相接地故障

會檢測不到,裝置繼續(xù)運行.

如果電機(jī)加速,故障會馬上檢測到,然后報過流故障代碼( 代碼為F0001)
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