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代碼 201940: <location>IF1: PB/PN clock cycle synchronism not reached

問題描述與安全警告

Siemens SINUMERIK 840D CNC 觸發了嚴重的 <location>IF1: PB/PN clock cycle synchronism not reached 警報。需要由合格的操作員或維修技師立即處理,以防止在製造週期中對設備造成二次損壞或導致零件報廢。在接觸電氣控制箱之前,請務必確保遵循標準安全和停機掛牌 (LOTO) 程序。

官方故障排除步驟

Message value: Drive object: All objects Reaction: NONE Acknowledge: NONE Cause: The bus is in the data exchange state and clock synchronous operation has been selected using the parameterizing telegram. It was not possible to synchr onize to the clock cycle specified by the master. - the master does not send a clock synchronous global control telegram although clock synchronous operation was selected when configuring the bus. - the master is using another clock synchronous DP clock cycle than was transf erred to the slave in the parameterizing telegram. - at least one drive object (that is not contro lled from PROFIBUS/PROFINET) has a pulse enable. Remedy: - check the master application and bus configuration. - check the consistency between the clock cycle input when configuring the slave and clock cycle setting at the master. - ensure that the pulses of drive objects that are not controlled by PR OFIBUS/PROFINET are not enabled. Only enable the pulses after synchr onizing the PROFIBUS/PROFINET drives. Note: IF1: Interface 1 PB: PROFIBUS PN: PROFINET

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.

關於 Siemens SINUMERIK 840D CNC 警報

由 Siemens 製造的工業控制器具有廣泛的診斷系統,用於保護內部電路和機械連桿。當 SINUMERIK 840D CNC 出現類似 201940 的錯誤代碼時,通常表示指令值與實際感測器回饋之間存在不匹配。

完整警報清單: 4014 Siemens SINUMERIK 840D CNC 代碼s.

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