代码 207940: <location>Sync-line-drive: Synchronization error
问题描述与安全警告
Siemens SINUMERIK 840D CNC 触发了严重的 <location>Sync-line-drive: Synchronization error 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: Drive object: VECTOR Reaction: OFF2 Acknowledge: IMMEDIATELY Cause: After synchronization has been completed, the phase difference (r3808) is greater than the threshold value, phase synchronism (p3813). OFF1 or OFF3 response, while the closed-loop phase control is active (r3819.6 = 1) or synchronism reached (r3819.2 = 1). Enable signal withdrawn (p3802 = 0), while the cl osed-loop phase control was active (r3819.6 = 1). SINAMICS-Alarms Remedy: If required increase the threshold value phase synch ronism (p3813) for sync hronizing the line supply to the drive. Before OFF1 or OFF3, complete synchronizing (r03819.0 = 0). Before withdrawing the enable signal (p3802 = 0), reach synchronism (r3819.2 = 1). See also: p3813 (Sync-line-drive phase synchronism threshold value)
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 207940 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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