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コード 15120: If a power failure occurs now, th e last data change d will be lost; index/buffer size = %1

問題の説明と安全警告

Siemens SINUMERIK 840D CNC は重大な If a power failure occurs now, th e last data change d will be lost; index/buffer size = %1 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 = Index/buffer size Definitions: Notification alarm. The alarm has no negative impact on the current machining. One of the system-internal data buffers, in which the last changed, buffered data are stored, has overflowed because the current data change rate is too high. The alarm warns that a spontaneous power failure in this situation (mains fault, disconnect the system from the power supply) would cause a loss of the immediatel y previously changed buffered data (tool data, parts programs, R parameters, GUDs,...) If the system is operated in an environment in which a power failure cannot occur, then the output of this alarm can be prevented via machine data MD18232 $MN_MM_ACTFILESYS_LOG_FILE_MEM[ index ] = 0. For information, parameter %1 specifies the index of the machine data, and the buffer size set there. Reaction: Alarm display. Remedy: If the alarm is present only sporadically, it can simply be regarded as a notification. The regular control behavior is not affected. If one does not want to or cannot eliminate the cause, then the alarm can be suppressed by setting MD11415 $MN_SUPPRESS_ALARM_MASK_2; Bit3=1 ('H8'). If the alarm is permanently present, please info rm the authorized personnel/service department. The value of MD18232 $MN_MM_ACTFILESYS_LOG_FILE_MEM[ index ] will then have to be increased. Program Continuation: Alarm display showing cause of alarm disapp ears. No further operator action necessary.

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 15120 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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