代碼 231-8C20: Position encoder %1 defective
問題描述與安全警告
Heidenhain TNC Series CNC 觸發了嚴重的 Position encoder %1 defective 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
[Cause of error] - There is no position encoder signal - Interruption of the position encoder cable - The signal amplitude of the position encoder is missing or too small - The position encoder is contaminated - Incorrect values of the machine parameter posEncoderResistor during use of an external Y cable - Incorrect values of the machine parameter posEncoderFreq at feed rates greater than 50 kHz (counting frequency results from the encoder resolution) [Error correction] - Check the position encoder connection - Check the function of the position encoder - Check the amplitude of the position encoder. - Check settings in machine parameter PosEncoderResistor. If an external Y cable is used, a 1 has to be entered in this machine parameter. - Check the setting of the machine parameter posEncoderFreq and max. feed velocity. At feed rates greater than 50 kHz (corresponding counting frequency at the position input results from the resolution of the encoder), a 1 must be entered in posEncoderFreq. - Inform your service agency
Source: HEIDENHAIN NC Error Messages — TNC7/640/620/320/128, CNC PILOT 640, MANUALplus 620 (10/2023)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
關於 Heidenhain TNC Series CNC 警報
由 Heidenhain 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 TNC Series CNC 出現類似 231-8C20 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: 4497 Heidenhain TNC Series CNC 代碼s.
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