代码 208700: <location>CBC: Communications error
问题描述与安全警告
Siemens SINUMERIK 840D CNC 触发了严重的 <location>CBC: Communications 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: %1 Drive object: CU_LINK, CU_S, HUB, SERVO, TB30, TM15, TM15DI_DO, TM17, TM31, TM41, TM54F_MA, TM54F_SL, VECTOR Reaction: A_INFEED: NONE SERVO: OFF3 (NONE, OFF1, OFF2) VECTOR: OFF3 (NONE, OFF1, OFF2) Acknowledge: IMMEDIATELY Cause: A CAN communications error has occurred. Fault value (r0949, interpret decimal): 1: The error counter for the send telegrams has exceeded the BUS OFF value 255. The bus disables the CAN controller. - bus cable interrupted. - bus cable not connected. - incorrect baud rate. - incorrect bit timing. 2: The master no longer interrogated the CAN node status longer than for its "life time". The "life time" is obtained from the "guard time" (p8604[0]) mu ltiplied by the "life time factor" (p8604[1]). - bus cable interrupted. - bus cable not connected. - incorrect baud rate. - incorrect bit timing. - master fault. Note: The fault response can be se t as required using p8641. See also: p8604 (CBC node guarding), p8641 (CBC abort connection option code) SINAMICS-Alarms Diagnostics Manual (DAsl), 03/2009 Remedy: - check the bus cable - check the baud rate (p8622). - check the bit timing (p8623). - check the master. See also: p8622 (CBC baud rate), p8623 (CBC bit timing selection)
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 208700 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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