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西門子變頻器上電運行后，不論是空載運行還是帶負載運行都會在西門子變頻器上顯示過流報警，當此類故障發(fā)生時一般意味著西門子變頻器中的IGBT功率部件損壞，應當對西門子變頻器中的功率部件及驅(qū)動部分進行詳細的測量，檢測存在問題的功率及驅(qū)動部件，更換新的部件后再詳細的測量后才能再次上電，如驅(qū)動部分存在問題將會導致西門子變頻器中新更換的IGBT在上電后再次燒毀。造成此類故障的原因主要是由于西門子變頻器在使用的過程中出現(xiàn)多次過載或是西門子變頻器長時間處于電壓波動較大的情況，從而導致西門子變頻器中的器件燒毀，針對這一情況需要對西門子變頻器的外側電路進行檢測，檢測電機是否正常，并在西門子變頻器的進線端加裝電壓保護裝置，以避免西門子變頻器燒毀。
西門子品牌的模塊我們回收了10多年，給出的價格也是給我們的許多老客戶能認可的，所以如果大家手上有閑置的產(chǎn)品可以直接聯(lián)系我們，我們不會給你低價的，我們是希望長期合作的。
在輸出電路中往往需要注意對驅(qū)動電路和負載器件的保護：
1）對于繼電器這類電感性負載，必須安裝火花抑制器。
2）對于容性負載，應在信號輸出負載線路中串聯(lián)限流電阻。電阻阻值應確保負載承受的瞬時電流和電壓被限制在額定值內(nèi)。
3）在用晶體管輸出直接驅(qū)動指示燈時，沖擊電流可能損壞晶體管。為此應設置保護電阻以防晶體管被擊穿。
4）當被驅(qū)動負載是電磁開關、電磁離合器、電磁閥線圈等交流負載，或雖是直流負載，但工作電壓或工作電流超過輸出信號的工作范圍時，應先用輸出信號驅(qū)動小型中間繼電器（一般工作電壓＋24V），然后用它們的觸點接通強電線路的功率繼電器或直接去激勵這些負載（見圖1）。當然，如果所用PLC裝置本身具有交流輸入、輸出信號接口，或有用于直流大負載驅(qū)動的接口時，輸出信號就不必經(jīng)中間繼電器過渡，即可以直接驅(qū)動負載器件。
1FK7063-5AF71-1EA0 (1FK70635AF711EA0)
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1FK7063-5AF71-1TA0 (1FK70635AF711TA0)
1FK7063-5AF71-1TG0 (1FK70635AF711TG0)
1FK7063-5AF71-1TH0 (1FK70635AF711TH0)
1FK7063-5AH71-1AG2 (1FK70635AH711AG2)
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1FK7064-7AF71-1EG0 (1FK70647AF711EG0)
1FK7064-7AF71-1KA0 (1FK70647AF711KA0)
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1FK7064-7AF71-1PG3 (1FK70647AF711PG3)
1FK7064-7AF71-1SA0 (1FK70647AF711SA0)
1FK7064-7AH71-1EG0 (1FK70647AH711EG0)
1FK7064-7AH71-1EH3 (1FK70647AH711EH3)
1FK7064-7AH71-1UB5 (1FK70647AH711UB5)
1FK7080-5AF71-1AA2 (1FK70805AF711AA2)
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1FK7080-5AF71-1DA3 (1FK70805AF711DA3)
1FK7080-5AF71-1DG3 (1FK70805AF711DG3)
1FK7080-5AF71-1EG0 (1FK70805AF711EG0)
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1FK7080-5AF71-1FA3 (1FK70805AF711FA3)
1FK7080-5AF71-1FG3 (1FK70805AF711FG3)
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1FK7080-5AF71-1KA3 (1FK70805AF711KA3)
1FK7080-5AF71-1TA0 (1FK70805AF711TA0)
1FK7080-5AF71-1TG0 (1FK70805AF711TG0)
1FK7080-5AH71-1AH0 (1FK70805AH711AH0)
1FK7080-5AH71-1DG0 (1FK70805AH711DG0)
1FK7080-5AH71-1EG0 (1FK70805AH711EG0)
1FK7080-5AH71-1UB3 (1FK70805AH711UB3)
1FK7082-7AF71-1DB3 (1FK70827AF711DB3)
1FK7083-5AF71-1AA0 (1FK70835AF711AA0)
1FK7083-5AF71-1AA2 (1FK70835AF711AA2)
1FK7083-5AF71-1AA5 (1FK70835AF711AA5)
1FK7083-5AF71-1AB0 (1FK70835AF711AB0)
1FK7083-5AF71-1AG0 (1FK70835AF711AG0)
1FK7083-5AF71-1AG2 (1FK70835AF711AG2)
1FK7083-5AF71-1AG3 (1FK70835AF711AG3)
1FK7083-5AF71-1AH0 (1FK70835AF711AH0)
1FK7083-5AF71-1AH2 (1FK70835AF711AH2)
1FK7083-5AF71-1AH3 (1FK70835AF711AH3)
1FK7083-5AF71-1DB3 (1FK70835AF711DB3)
1FK7083-5AF71-1DG0 (1FK70835AF711DG0)
1FK7083-5AF71-1DH0 (1FK70835AF711DH0)
1FK7083-5AF71-1DH3 (1FK70835AF711DH3)
1FK7083-5AF71-1EA0 (1FK70835AF711EA0)
1FK, 7083-5AF71-1EA2 (1FK70835AF711EA2)
1FK7083-5AF71-1EB0 (1FK70835AF711EB0)
1FK7083-5AF71-1EG0 (1FK70835AF711EG0)
1FK7083-5AF71-1EG2 (1FK70835AF711EG2)
1FK7083-5AF71-1EG3 (1FK70835AF711EG3)
1FK7083-5AF71-1EG5 (1FK70835AF711EG5)
1FK7083-5AF71-1EH0 (1FK70835AF711EH0)
1FK7083-5AF71-1EH2 (1FK70835AF711EH2)
1FK7083-5AF71-1EH3 (1FK70835AF711EH3)
1FK7083-5AF71-1FA5 (1FK70835AF711FA5)
1FK7083-5AF71-1FH3 (1FK70835AF711FH3)
1FK7083-5AF71-1GA0 (1FK70835AF711GA0)
1FK7083-5AF71-1GG3 (1FK70835AF711GG3)
1FK7083-5AF71-1GG5 (1FK70835AF711GG5)
1FK7083-5AF71-1PA3 (1FK70835AF711PA3)
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