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代码 201751: <location>SI Motion CU: eff.test error safe encoder

问题描述与安全警告

Siemens SINUMERIK 840D CNC 触发了严重的 <location>SI Motion CU: eff.test error safe encoder 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: SERVO, VECTOR Reaction: NONE Acknowledge: IMMEDIATELY (POWER ON) Cause: The DQ encoder used for the safety-relevant motion monitoring functions signal s an effectiveness test error. Message value (r9749, interpret decimal): 1 - TFD bit in EncoderStatusWord2 set in last effectiveness test set 2 - Actual effectiveness test no. in last ef fectiveness test set smaller/greater than expected 3 - IG1/IG2 bits in EncoderStatusWord2 in la st effectiveness test set longer than expected 4 - F1/F2 bits in EncoderStatusWord2 in last effectiveness test set not dynamized 5 - Effectiveness tests performed too frequently 6 - LS1/LS2 were not frozen during effectiveness test 7 - Effectiveness tests performed too rarely or not at all Remedy: - check the encoder connection. - replace the encoder. This message can be acknowledged as follows: - motion monitoring functions integrated in the driv e: Via Terminal Module 54F (TM54F) or PROFIsafe - motion monitoring functions with SINU MERIK: Via the machine control panel.

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 201751 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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