代码 235220: <location>TM: Frequency limit reached for signal output
问题描述与安全警告
Siemens SINUMERIK 840D CNC 触发了严重的 <location>TM: Frequency limit reached for signal output 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: All objects Reaction: A_INFEED: OFF1 (NONE, OFF2) SERVO: OFF1 (NONE, OFF2, OFF3) VECTOR: OFF1 (NONE, OFF2, OFF3) Acknowledge: IMMEDIATELY (POWER ON) Cause: The signals output from the Terminal Module 41 (T M41) for tracks A/B have reached the limit frequency. The output signals are no longer in synchronism with the specified setpoint. SINAMICS-Alarms Diagnostics Manual (DAsl), 03/2009 Remedy: SIMOTION (p4400 = 0) operating mode: - enter a lower speed setpoint (p1155). - reduce the encoder pulse number (p0408). - if the TM41 is configured as te chnology object in SIMOTION, then this fault is generated if the A/B signals in connector X520 are short-circui ted SINAMICS (p4400 = 1) operating mode: - the fine resolution of TM41 in p0418 does not match that of the connector input that was interconnected at P4420 - the encoder position actual value r0479 interconnec ted at connector input p4420 has an excessively high actual speed
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 235220 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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