代碼 207498: <location>LR: Measuring pr obe evaluation not possible
問題描述與安全警告
Siemens SINUMERIK 840D CNC 觸發了嚴重的 <location>LR: Measuring pr obe evaluation not possible 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: %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.
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 207498 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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