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代码 207498: <location>LR: Measuring pr obe evaluation not possible

问题描述与安全警告

Siemens SINUMERIK 840D CNC 触发了严重的 <location>LR: Measuring pr obe evaluation not possible 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: %1 Drive object: All objects Reaction: NONE Acknowledge: NONE Cause: When evaluating the measuring probe, an error occurred. Alarm value (r2124, interpret decimal): 6: The input terminal for the measuring probe is not set. 4098: Error when initializing the measuring probe. 4100: The measuring pulse frequency is too high. > 50000: The measuring clock cycle is not a multiple integer of the position controller clock cycle. SINAMICS-Alarms Remedy: De-activate the measuring probe evaluation (BI: p2509 = 0 signal). Re alarm value = 6: Set the input terminal for the measuring probe (p0488, p0489 or p2517, p2518). Re alarm value = 4098: Check the Control Unit hardware. Re alarm value = 4100: Reduce the frequency of the measur ing pulses at the measuring probe. Re alarm value > 50000: Set the clock cycle ratio of the meas uring clock cycle to the position c ontroller clock cycle to an integer multiple. To do this, the currently effective measuring cloc k cycle can be determined from the alarm value as follows: Tmeas[125µs] = alarm value - 50000. With PROFIBUS, the measuring clock cycle corre sponds to the PROFIBUS clock cycle r2064[1]. Without PROFIBUS, the measuring clock cycle is an internal cycle time that cannot be influenced.

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 207498 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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