代碼 207433: <location>Drive: Closed-loop control with encoder is not possible as the encoder has not been unparked
問題描述與安全警告
Siemens SINUMERIK 840D CNC 觸發了嚴重的 <location>Drive: Closed-loop control with encoder is not possible as the encoder has not been unparked 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: 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.
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 207433 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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