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代碼 207907: <location>Internal armature short-circuit: Motor terminals are not at zero potential after pulse suppression

問題描述與安全警告

Siemens SINUMERIK 840D CNC 觸發了嚴重的 <location>Internal armature short-circuit: Motor terminals are not at zero potential after pulse suppression 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: Drive object: SERVO, VECTOR Reaction: NONE Acknowledge: IMMEDIATELY Cause: The function "Internal voltage protection" (p1231 = 3) was activated. The following must be observed: - when the internal voltage protection is active, afte r pulse suppression, all of the motor terminals are at half of the DC link voltage (without an internal voltage protection, the motor terminals are at zero potential)! - it is only permissible to use motors th at are short-circuit proof (p0320 < p0323). - the Motor Module must be able to continually c onduct 180% short-circuit current (r0331) of the motor (r0289). - the internal voltage protection cannot be interrupt ed due to a fault response. If an overcurrent condition occurs during the active, internal voltage pr otection, then this can destroy the Motor Module and/or the motor. - if the Motor Module does not support the autonomous, internal voltage protection (r0192.10 = 0), in order to ensure safe, reliable functioning when t he line supply fails, an ex ternal 24 V power supply (UPS) must be used for the components. - if the Motor Module does support the autonomous, internal voltage protection (r0192.10 = 1), in order to ensure safe, reliable functioning when the line supply fails, the 24 V power supply for the components must be provided through a Control Supply Module. - if the internal voltage protection is active, it is no t permissible that the motor is driven by the load for a longer period of time (e.g. as a result of loads that move the motor or another coupled motor). Remedy: None necessary. This a note for the user. SINAMICS-Alarms Diagnostics Manual (DAsl), 03/2009

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 207907 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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