代码 235231: <location>TM: Master control by PLC missing
问题描述与安全警告
Siemens SINUMERIK 840D CNC 触发了严重的 <location>TM: Master control by PLC missing 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: TM41 Reaction: NONE Acknowledge: NONE SINAMICS-Alarms Cause: The "master control by PLC" si gnal was missing in operation. - interconnection of the binector input for "mas ter control by PLC" is incorrect (p0854). - the higher-level control has withdraw n the "master control by PLC" signal. - data transfer via the fieldbus (master/drive) was interrupted. Note: This alarm is only decisive in the "SIMOTION" operating mode (p4400 = 0). In the "SINAMICS" operating mode, the setpoint s at P4420 are evaluated independent of binector input p0854. Remedy: - check the interconnection of the binector i nput for "master control by PLC" (p0854). - check the "master control by PLC" signal and, if required, switch in. - check the data transfer via the fieldbus (master/drive). - check the setting of parameter p2037.
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 235231 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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