代碼 P10-10311: I3 Ground Fault
問題描述與安全警告
Allen-Bradley PowerFlex 750 Drive 觸發了嚴重的 I3 Ground Fault 警報。需要由合格的操作員或維修技師立即處理，以防止在製造週期中對設備造成二次損壞或導致零件報廢。在接觸電氣控制箱之前，請務必確保遵循標準安全和停機掛牌 (LOTO) 程序。
官方故障排除步驟
Type: Resettable Fault Coast Y Y A current path to earth ground greater than 25 % of drive rating has occurred. • Perform a Megger or surge test on a disconnected motor. Replace the motor, if necessary. • Check the output phase current displayed in [In U Phase Curr], [In V Phase Curr], and [In W Phase Curr] (port 10) for an imbalance. [In Gnd Current] (port 10) is the calculated (not measured) ground current based on the phase currents. • If the ground fault happens immediately when the drive is started, view the values of the output phase current parameters (noted in the second bullet) when running the drive with a light load or perform a trending analysis. • Reseat the rating plug and current transducer wiring harness.
Source: Allen-Bradley PowerFlex 750-Series AC Drives Programming Manual (750-PM001)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
關於 Allen-Bradley PowerFlex 750 Drive 警報
由 Allen-Bradley 製造的工業控制器具有廣泛的診斷系統，用於保護內部電路和機械連桿。當 PowerFlex 750 Drive 出現類似 P10-10311 的錯誤代碼時，通常表示指令值與實際感測器回饋之間存在不匹配。
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