代碼 207971: <location>Drive: Angular commutation offset determination activated
問題描述與安全警告
Siemens SINUMERIK 840D CNC 觸發了嚴重的 <location>Drive: Angular commutation offset determination activated 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: Drive object: SERVO, VECTOR Reaction: NONE Acknowledge: NONE Cause: The automatic determination of the angular commuta tion offset (encoder adjus tment) is activated (p1990 = 1). The automatic determination is carried out with the next power-on command. For SERVO and fault F07414 present, the following applies: The determination of the angular commutation offset is automatically activated (p1990 = 1), if a pole position identification technique is set in p1980. See also: p1990 (Encoder adjustment, determine angular commutation offset) Remedy: None necessary. The alarm automatically disappears after determination or for the setting p1990 = 0. SINAMICS-Alarms Diagnostics Manual (DAsl), 03/2009
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 207971 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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