代碼 207312: <location>Bypass LSS:
問題描述與安全警告
Siemens SINUMERIK 840D CNC 觸發了嚴重的 <location>Bypass LSS: 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
Message value: Fault cause: %1 bin Drive object: SERVO, VECTOR Reaction: OFF2 Acknowledge: IMMEDIATELY Cause: Fault value: Bit field BYPASS_CONTACTOR_ERROR_STATE Bit 1 BYPASS_CONTACTOR_ERR_FBK_ON_MISSING Switch "Closed" feedback signal missing Bit 2 BYPASS_CONTACTOR_ERR_FBK_OFF_MISSING Switch "opened" feedback signal missing Bit 3 BYPASS_CONTACTOR_ERR_TOO_SLOW Switch feedback signal too slow: After switching, the system waits for the posit ive feedback signal. If the f eedback signal is received later than the specified time, then a fault trip (shutdown) is issued. Bit 6 BYPASS_CONTACTOR_ERR_BYPASS_INCONSISTENCY Line Side Switch feedback signal is not consistent with the bypass state: When powering up or for STAGING, the Line Side Sw itch is closed without this having been requested from the bypass. See also: p1260 (Bypass configuration), r1261 (Byp ass control/status word), p1266 (Bypass, control command), p1267 (Bypass changeover source confi guration), p1269 (Bypass switch feedback signal), p1274 (Bypass switch monitoring time) Remedy: - check the transfer of the feedback signals. - check the switch
Source: SINUMERIK 840D sl / 840Di sl / SINAMICS S120 Diagnostics Manual (DAsl, 03/2009)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
關於 Siemens SINUMERIK 840D CNC 警報
由 Siemens 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 SINUMERIK 840D CNC 出現類似 207312 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。
完整警報清單: 4014 Siemens SINUMERIK 840D CNC 代碼s.
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