代码 206500: <location>Infeed: Line synchronization not possible
问题描述与安全警告
Siemens SINUMERIK 840D CNC 触发了严重的 <location>Infeed: Line synchronization not possible 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: A_INF, S_INF Reaction: OFF2 (OFF1) Acknowledge: IMMEDIATELY (POWER ON) Cause: The line synchronization is not possi ble within the monitoring time. The infeed was re-synchronized to the line suppl y because it was interrupted due to a line frequency that was determined to be either too low or too high. After 20 attempts, synchronization - and therefore also the power-on operation - were interrupted. Remedy: - check the parameterized line frequency and if required change (p0211). - check the setting of the threshold values (p0284, p0285). - check the line supply. - when a Voltage Sensing Module ( VSM) is used: check the line supply to the VSM terminals X521 or X522. - check the line supply quality. See also: p0211 (Rated line freq), p0284 (Line s upply frequency exceeded, alarm threshold), p0285 (Line supply frequency undershot, alarm threshold)
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 206500 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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