コード 20001: [Channel %1: ] Axis %2 no cam signal present
問題の説明と安全警告
Siemens SINUMERIK 840D CNC は重大な [Channel %1: ] Axis %2 no cam signal present 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 Definitions: At the beginning of phase 2 of reference point approac h, the signal from the reduction cam is no longer available. Phase 2 of reference point approach begins when the axis remains stationary after deceleration to the reduction cam. The axis then starts in the opposite dire ction in order to select the next zero marker of the measuring system on leaving the reduction cam or approaching it again (negative/positive edge). Reaction: NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm. Remedy: Please inform the authorized personnel/service department. Check whether the deceleration path after the approach velocity is greater than the distance to the reference point cam - in which case the axis cannot stop until it is beyond the cam. Use a longer cam or reduce the approach velocity in MD34020 $MA_REFP_VELO_SEARCH_CAM. When the axis has stopped at the cam, it must be checked whether the signal DB31,... DBX12.7 (Deceleration reference point approach) is st ill available at the interface to the NCK. - Hardware: Wire break? Short circuit? - Software: User program? 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 20001 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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