代碼 P11-PRE-11319: P3 240 V AC Loss
問題描述與安全警告
Allen-Bradley PowerFlex 750 Drive 觸發了嚴重的 P3 240 V AC Loss 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: Alarm 1 240V AC not present while the drive is in the inactive state. This alarm is suppressed when the 240V AC Loss Fault is present. Resettable Fault Coast 240V AC was lost while in the active state. Active state whenever the drive is not stopped, for example, the molded case switch (MCS) is opening or closing or is closed.
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 P11-PRE-11319 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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