代码 120309: The selection is not pos sible. Please close the simulation and repeat the selection.
问题描述与安全警告
Siemens SINUMERIK 840D CNC 触发了严重的 The selection is not pos sible. Please close the simulation and repeat the selection. 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
Definitions: The simulation is currently active in the program area. A simultaneous editi ng is not possible. Reaction: Alarm display. Remedy: Close the simulation and make the selection again. The alarm disappears automatically as soon as a pr ogram is edited or simulated in the program area. The alarm can also be acknow ledged manually via diagnostics. Program Continuation: Internal
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 120309 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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