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

问题描述与安全警告

Siemens SINUMERIK 840D CNC 触发了严重的 <location>Internal armature short-circuit: Motor terminals are not at zero potential after pulse suppression 警报。需要由合格的操作员或维修技师立即处理,以防止在制造周期中对设备造成二次损坏或导致零件报废。在接触电气控制箱之前,请务必确保遵循标准安全和停机挂牌 (LOTO) 程序。

官方故障排除步骤

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.

关于 Siemens SINUMERIK 840D CNC 警报

由 Siemens 制造的工业控制器具有广泛的诊断系统,用于保护内部电路和机械连杆。当 SINUMERIK 840D CNC 出现类似 207907 的错误代码时,通常表示指令值与实际传感器反馈之间存在不匹配。

完整报警清单: 4014 Siemens SINUMERIK 840D CNC 代码s.

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