コード 10721: [Channel %1: ] Block %3 axis %2 software limit switch %4
問題の説明と安全警告
Siemens SINUMERIK 840D CNC は重大な [Channel %1: ] Block %3 axis %2 software limit switch %4 アラームをトリガーしました。製造サイクル中に機器への二次的損傷や部品の破損を防ぐために、資格のあるオペレーターまたはメンテナンス技術者による直ちの対応が必要です。電気キャビネットにアクセスする前に、必ず標準の安全およびLOTO手順が遵守されていることを確認してください。
公式トラブルシューティング手順
Parameters: %1 = Channel number %2 = Axis name, spindle number %3 = Block number, label %4 = String ( + or - ) Definitions: The motion planned for the axis violates t he currently valid software limit switch. The alarm is activated during the preproce ssing of approach or rest blocks for REPOS. Depending on MD11411 $MN_ENABLE_ALARM_MASK, bit11=0 this alarm is output instead of alarm 10723. If this MD11411 $MN_ENABLE_ALARM_MASK, bit11 is set in this machine data $MN_ENABLE_ALARM_MASK, an expanded diagnostics opt ion is offered for the software limit switch violation. The condition for activation is the presence of the ALUN* alarm file in the HMI. See also the Diagnostics Manual for alarm 10723. Reaction: Local alarm reaction. Interface signals are set. Alarm display. Remedy: Determine the cause of the offset from the initial or target position. The REPOS command is executed at the end of an ASUB or system ASUB. See also cross reference from ASUBs. Check the axis-specific NC/PLC interface signals DB 31,... DBX12.3 / 12.2 (2nd software limit switch plus/minus) to see whether the 2nd software limit switch is selected. Check the currently active work offset via the current frame. Also check the external work offsets, overlaid movements ($AA_OFF), DRF and transformation components. Cancel the NC program with NC reset. 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.
Siemens SINUMERIK 840D CNC のアラームについて
Siemens によって構築された産業用コントローラーは、内部回路と機械的リンケージを保護するための広範な診断システムで設計されています。SINUMERIK 840D CNC が 10721 のようなエラーコードをスローする場合、通常、指令値と実際のセンサーフィードバック間の不一致を示します。
完全アラーム一覧: 4014 Siemens SINUMERIK 840D CNC コードs.
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