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更新時間：2024-06-11

產品簡介：

當天修好西門子S120伺服控制器報F30005過載解決；

靜態檢測逆變模塊(kuai)損(sun)壞，整流模塊(kuai)正常。故障(zhang)分析(xi)有一路電阻有損(sun)壞的痕跡。

 逆變(bian)模(mo)塊損壞(huai)多半(ban)是由驅(qu)動電(dian)(dian)(dian)路(lu)損壞(huai)造成(cheng)(cheng)的(de)(de)。檢查(cha)驅(qu)動電(dian)(dian)(dian)路(lu)果然經檢查(cha)為IOM電(dian)(dian)(dian)阻損壞(huai)短路(lu)。’這是光禍隔離器4506輸(shu)出端(duan)的(de)(de)上(shang)拉電(dian)(dian)(dian)阻，這個上(shang)拉電(dian)(dian)(dian)阻損壞(huai)短路(lu)，使得4506的(de)(de)輸(shu)入無(wu)論是高電(dian)(dian)(dian)平還是低(di)電(dian)(dian)(dian)平，輸(shu)出端(duan)送到T95的(de)(de)信號始(shi)(shi)終是高電(dian)(dian)(dian)平，這就(jiu)造成(cheng)(cheng)we與(yu)WE之間始(shi)(shi)終為高電(dian)(dian)(dian)平，變(bian)頻器運行時，造成(cheng)(cheng)同一橋(qiao)臂2個開關器件(jian)同時導通而損壞(huai)逆變(bian)模(mo)塊。更換電(dian)(dian)(dian)阻，驅(qu)動電(dian)(dian)(dian)路(lu)正常(chang)工作。

這個電阻的損壞實屬偶然，損壞的確切原因難以確定，也許是偶然的電火花燒毀，更大的可能性是電阻本身質量問題。電阻損壞短路造成逆變模塊損壞的原因前面已講過。另外，這個電路的設計是上拉電阻經過一個47552電阻后接到4506光禍隔離器的輸出端，保護了光禍隔離器的安全。若沒有這個電阻，上拉電阻直接連在光禍隔離器的輸出端，上拉電阻損壞短路會導致光禍隔離器的損壞。

F30005 功(gong)率單元：I2t 過載(zai)

信息值： %1

信息類(lei)別： 功率元器件(jian)故障(zhang) (5)

驅(qu)動對象： A_INF, B_INF, R_INF, S_INF, SERVO, SERVO_AC, SERVO_I_AC

組件： 功率(lv)部件傳播： LOCAL

反應： OFF2

應答： 立即

原因： 功率單元(yuan)過載（r0036 = 100 %）。

- 不允許長時間超過功率單元的額(e)定(ding)電流。

- 沒有保持允許的工作周期。

故障值(zhi)（r0949，十(shi)進制）：

I2t [100 % = 16384].

處理： - 減小連續負載。

- 調整工作周期。

- 檢查電機和功率單(dan)元(yuan)的額定電流(liu)。

參見： r0036, r0206, p0206, p0307

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