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西門子S7-1516CPU啟動過一會就黑屏不亮修理
西(xi)(xi)(xi)門(men)(men)子(zi)(zi)(zi)S7-1500CPU開機(ji)無顯(xian)示(shi)維(wei)(wei)修(xiu)(xiu),西(xi)(xi)(xi)門(men)(men)子(zi)(zi)(zi)CPU1500上(shang)(shang)電(dian)黑屏(ping)維(wei)(wei)修(xiu)(xiu),西(xi)(xi)(xi)門(men)(men)子(zi)(zi)(zi)CPU1500啟動(dong)面板(ban)不(bu)亮維(wei)(wei)修(xiu)(xiu),西(xi)(xi)(xi)門(men)(men)子(zi)(zi)(zi)CPU1500上(shang)(shang)電(dian)無顯(xian)示(shi)維(wei)(wei)修(xiu)(xiu),西(xi)(xi)(xi)門(men)(men)子(zi)(zi)(zi)CPU1500上(shang)(shang)電(dian)屏(ping)幕(mu)不(bu)亮維(wei)(wei)修(xiu)(xiu),西(xi)(xi)(xi)門(men)(men)子(zi)(zi)(zi)CPU1500上(shang)(shang)電(dian)無反應維(wei)(wei)修(xiu)(xiu),西(xi)(xi)(xi)門(men)(men)子(zi)(zi)(zi)CPU1500上(shang)(shang)電(dian)不(bu)啟動(dong)維(wei)(wei)修(xiu)(xiu),西(xi)(xi)(xi)門(men)(men)子(zi)(zi)(zi)CPU1500接(jie)錯(cuo)電(dian)燒壞維(wei)(wei)修(xiu)(xiu),西(xi)(xi)(xi)門(men)(men)子(zi)(zi)(zi)CPU1500啟動(dong)亮紅(hong)燈(deng)維(wei)(wei)修(xiu)(xiu),西(xi)(xi)(xi)門(men)(men)子(zi)(zi)(zi)PLC1500接(jie)錯(cuo)電(dian)燒壞維(wei)(wei)修(xiu)(xiu),西(xi)(xi)(xi)門(men)(men)子(zi)(zi)(zi)PLC1500PLC1500啟動(dong)亮紅(hong)燈(deng)維(wei)(wei)修(xiu)(xiu),西(xi)(xi)(xi)門(men)(men)子(zi)(zi)(zi)PLC1500網口燈(deng)不(bu)亮維(wei)(wei)修(xiu)(xiu),西(xi)(xi)(xi)門(men)(men)子(zi)(zi)(zi)PLC1500通訊連接(jie)不(bu)上(shang)(shang)維(wei)(wei)修(xiu)(xiu)
西門子6SE70變頻柜的失速防止功能包括兩個方面:851193598
1、加速中(zhong):(1)加速時間若預置的(de)過(guo)短(duan),容易因過(guo)電(dian)流而跳(tiao)閘。(2)加速時間過(guo)長(chang),又會(hui)影響機(ji)臺運行(xing)效率。況(kuang)且,生產機(ji)臺的(de)工況(kuang)也
時有變(bian)化,這給用(yong)戶在預置“加(jia)速(su)時間(jian)"時帶來了(le)困難(nan),難(nan)以(yi)迅(xun)速(su)地預置的(de)恰到好處。變(bian)頻(pin)器(qi)在加(jia)速(su)中出現過電流時,可以(yi)不必跳閘,而
啟(qi)動“防止跳閘"程序。具(ju)體方法(fa)是:如果在加(jia)速中(zhong),電流超過了預置的(de)上(shang)限(xian)值,變頻(pin)器的(de)輸(shu)出將不(bu)再,暫(zan)緩加(jia)速,待電流下降
到上限(xian)值以(yi)下后(hou)再繼續加速。
2、西門子S7-1516CPU啟動過一會就黑屏不亮修理減速(su)中:對于慣性較大的負(fu)載(zai),如果減速(su)時間預置(zhi)的過短,會因拖動(dong)系統的功能釋(shi)放(fang)得太快而引起直流回(hui)路(lu)的過電壓(ya)。如果在(zai)減速(su)
中,直(zhi)流電壓(ya)超過了(le)上限值(zhi),變頻(pin)器的輸出不再下降,暫緩減(jian)速,待(dai)直(zhi)流電壓(ya)下降到設定值(zhi)以下后再繼續減(jian)速。我們常常把(ba)這種功能
稱之為防失速功能。