代碼 DRV-175: Travel Lim Cflct
問題描述與安全警告
Allen-Bradley PowerFlex 750 Drive 觸發了嚴重的 Travel Lim Cflct 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: Non-Reset Fault Current Limit Stop Travel limits are in conflict. Both the forward and reverse travel limits indicate that they are simultaneously active. If digital limits (hardware signals) are in use, ensure that the following forward and reverse digital input pairs are not both off simultaneously: fwd/rev decel travel limit digital inputs and fwd/rev end stop travel limit digital inputs. The travel limit digital inputs are meant to be connected to normally closed switch contacts, so the digital input status reads an off (0 = False) bit status when the machine is on limit and the switch contact opens. A possible cause for this condition is loss of common power to both the forward and reverse travel limit switches. If software travel limits are in use, check the state of the fwd/ rev travel limit bits in P1101 [Trq Prove Setup]. These bits read an on (1 = Enabled) bit status when the machine is on limit. Bit 2 “Decel Fwd” and Bit 4 “Decel Rev” should not be on simultaneously. Similarly, Bit 3 “End Stop Fwd” and Bit 5 “End Stop Rev” should not be on simultaneously.
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 DRV-175 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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