西門子PLC1515上電面板黑屏無顯示維修方法

西(xi)(xi)(xi)門(men)(men)(men)(men)(men)子(zi)(zi)S7-1500CPU開機無顯示(shi)維(wei)修(xiu)(xiu)，西(xi)(xi)(xi)門(men)(men)(men)(men)(men)子(zi)(zi)CPU1500上(shang)電(dian)黑屏維(wei)修(xiu)(xiu)，西(xi)(xi)(xi)門(men)(men)(men)(men)(men)子(zi)(zi)CPU1500啟(qi)(qi)動(dong)面板(ban)不(bu)(bu)亮維(wei)修(xiu)(xiu)，西(xi)(xi)(xi)門(men)(men)(men)(men)(men)子(zi)(zi)CPU1500上(shang)電(dian)無顯示(shi)維(wei)修(xiu)(xiu)，西(xi)(xi)(xi)門(men)(men)(men)(men)(men)子(zi)(zi)CPU1500上(shang)電(dian)屏幕不(bu)(bu)亮維(wei)修(xiu)(xiu)，西(xi)(xi)(xi)門(men)(men)(men)(men)(men)子(zi)(zi)CPU1500上(shang)電(dian)無反應(ying)維(wei)修(xiu)(xiu)，西(xi)(xi)(xi)門(men)(men)(men)(men)(men)子(zi)(zi)CPU1500上(shang)電(dian)不(bu)(bu)啟(qi)(qi)動(dong)維(wei)修(xiu)(xiu)，西(xi)(xi)(xi)門(men)(men)(men)(men)(men)子(zi)(zi)CPU1500接(jie)錯電(dian)燒壞(huai)維(wei)修(xiu)(xiu)，西(xi)(xi)(xi)門(men)(men)(men)(men)(men)子(zi)(zi)CPU1500啟(qi)(qi)動(dong)亮紅燈維(wei)修(xiu)(xiu)，西(xi)(xi)(xi)門(men)(men)(men)(men)(men)子(zi)(zi)PLC1500接(jie)錯電(dian)燒壞(huai)維(wei)修(xiu)(xiu)，西(xi)(xi)(xi)門(men)(men)(men)(men)(men)子(zi)(zi)PLC1500PLC1500啟(qi)(qi)動(dong)亮紅燈維(wei)修(xiu)(xiu)，西(xi)(xi)(xi)門(men)(men)(men)(men)(men)子(zi)(zi)PLC1500網口燈不(bu)(bu)亮維(wei)修(xiu)(xiu)，西(xi)(xi)(xi)門(men)(men)(men)(men)(men)子(zi)(zi)PLC1500通訊(xun)連接(jie)不(bu)(bu)上(shang)維(wei)修(xiu)(xiu)

輸入模塊一般由光電耦合電路組成；輸出模塊根據型號不同有繼電輸(shu)出、晶體管輸出、光電輸出(chu)等。每一點輸入輸出都有相應的發光二極管指示。有輸入信號但該點不亮或確定有輸出但輸出燈不亮時就應該懷疑I/O模塊有故障。輸入和輸出模塊有6到24個點，如果只是因為一個點的損壞就更換整個模塊在經濟上不合算。通常(chang)的(de)做法(fa)是找備(bei)用(yong)點替代，然后在程序中更改相應的地址。但要注意，程序較大是查找具體地址有困難。西門子PLC1515上電面板黑屏無顯示維修方法特別強調的是，無論是更換輸入模塊還是更換輸出模塊，都(dou)要在PLC斷電的(de)情況下進行，S5帶(dai)電插(cha)拔模塊是絕(jue)對不允許(xu)的(de)。通用型S5PLC的CPU模塊上往往包括有通信接口、EPROM插槽、運行開關等，故障的隱蔽性更大，因為更換CPU模塊的費用很大，所以對它的故障分析、判斷要尤為仔細