代碼 14765: NCU link cannot transfer all link variables
問題描述與安全警告
Siemens SINUMERIK 840D CNC 觸發了嚴重的 NCU link cannot transfer all link variables 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
Definitions: A value assignment to a link variable (e.g. $a_dld[ 16]=19) is performed in the main run and transferred via NCU link to all NCUs in the link network. The bandwidth of this connection restricts the number of value assignments which can be transferred in one in terpolation cycle. Assignment operations which are not transferred are stored in a buffer memory. This buffer is full! All value assignments are combined in the next main run block and performed immediately this block is executed. A main run block is the block at which you would stop in single block mode SLB1. Examples: Blocks with a real traversing movement (G0 X100), Stopre, G4, WAITM, WAITE,... Link variable scanning operations are not affected (e.g.: R100= $a_dld[16]) Reaction: NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm. Remedy: Insert main run blocks which require a sufficient num ber of interpolation cycles for execution (e.g. G4 F10) between the assignments. A block with an additional preprocessor st op does not improve the situation! See also $A_LINK_TRANS_RATE, for a variable which you can test before an assignment. Program Continuation: Clear alarm with the RESET key. Restart part program
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 14765 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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