代码 752: FIRST SPINDLE MODE CHANGE FAULT
问题描述与安全警告
Fanuc 16i/18i/21i CNC 触发了严重的 FIRST SPINDLE MODE CHANGE FAULT 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
This alarm is generated if the system does not prop erly terminate a mode change. The modes include the Cs contouring, spindle positioning, rigid tapping, and spindle control modes. The alarm is activated if the spindle control unit does not respond correctly to the mode change command issued by the NC.
Source: Fanuc Series 16i/18i/21i-B Operator's Manual, Appendix G Alarm List (B-63864EN/03)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
关于 Fanuc 16i/18i/21i CNC 警报
由 Fanuc 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 16i/18i/21i CNC 出现类似 752 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: 360 Fanuc 16i/18i/21i CNC 代码s.
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