代码 207433: <location>Drive: Closed-loop control with encoder is not possible as the encoder has not been unparked
问题描述与安全警告
Siemens SINUMERIK 840D CNC 触发了严重的 <location>Drive: Closed-loop control with encoder is not possible as the encoder has not been unparked 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 Reaction: NONE (OFF1, OFF2, OFF3) Acknowledge: IMMEDIATELY Cause: The changeover to closed-loop cont rol with encoder is not possi ble as the encoder has not been unparked. SINAMICS-Alarms Diagnostics Manual (DAsl), 03/2009 Remedy: - check whether the encoder firmware suppor ts the "parking" function (r0481.6 = 1). - upgrade the firmware. Note: For long-stator motors (p3870.0 = 1), the following applies: The encoder must have completed the unparking procedure (r3875.0 = 1) before a changeover can be made to closed-loop control with encoder. Th e encoder is unparked with a 0/1 edge at BI: p3876 and remains unparked until a 0 signal is again present.
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 207433 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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