代码 231118: <location>Encoder 1: Speed difference outside the tolerance range
问题描述与安全警告
Siemens SINUMERIK 840D CNC 触发了严重的 <location>Encoder 1: Speed difference outside the tolerance range 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: A_INFEED: NONE SERVO: ENCODER (IASC/DCBRAKE, NONE) VECTOR: ENCODER (IASC/DCBRAKE, NONE) Acknowledge: PULSE INHIBIT Cause: For an HTL/TTL encoder, the speed difference has exceeded the value in p0492 over several sampling cycles. The change to the averaged speed actual value - if appl icable - is monitored in the current controller sampling time. Encoder 1 is used as motor encoder and can be e ffective has fault response to change over to encoderless operation. Fault value (r0949, interpret decimal): Only for internal Siemens troubleshooting. See also: p0491, p0492 Remedy: - check the tachometer feeder cable for interruptions. - check the grounding of the tachometer shielding. - if required, increase the maximum sp eed difference per sampling cycle (p0492).
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 231118 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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