代碼 6434: [Channel %1: ] Block %2 NC command SETMTH not allowed because tool holder function not active
問題描述與安全警告
Siemens SINUMERIK 840D CNC 觸發了嚴重的 [Channel %1: ] Block %2 NC command SETMTH not allowed because tool holder function not active 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
Parameters: %1 = Channel number %2 = Block number, label Definitions: No master toolholder has been defined for the initial state (MD20124 $MC_TOOL_MANAGEMENT_TOOLHOLDER = 0), theref ore no toolholder is available. The NC command SETMTH has neither been defined. In this setting, the tool change is carried out referring to the master spindle. The master spindle is set with SETMS. Reaction: Correction block is reorganized. Local alarm reaction. Interface signals are set. Alarm display. Remedy: Correct the NC program (delete or replace SETMHT) or enable toolholder function via machine data. Program Continuation: Clear alarm with NC ST ART or RESET key and continue the 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 6434 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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