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コード 207493: <location>LR: Overflow of the value range for position actual value

問題の説明と安全警告

Siemens SINUMERIK 840D CNC は重大な <location>LR: Overflow of the value range for position actual value 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

Message value: %1 Drive object: SERVO, VECTOR Reaction: OFF1 (OFF2, OFF3) Acknowledge: IMMEDIATELY Cause: The value range (-2147483648... 2147483647) for the po sition actual value representation was exceeded. When the overflow occurs, the "referenced" or " adjustment absolute measur ing system" status is reset. Fault value (r0949, interpret decimal): 1: The position actual value (r2521) has exceeded the value range. 2: The encoder position actual va lue Gn_XIST2 (r0483) or the abs olute value after the load gear (r2723) has exceeded the value range. 3: The maximum encoder value times the factor to convert the absolute position (r0483 and/or r2723) from increments to length units (LU) has exceeded the value range for displaying the position actual value. Remedy: If required, reduce the traversing range or position resolution (p2506). Increase the fine resolution of absolute position actual value (p0419). Reference to fault value = 3: If the value for the maximum possible absolute position (LU) is greater than 4294967296, an adjustment cannot be made due to an overflow. For rotary encoders, the maximu m possible absolute position (LU) is calculated as follows: 1. Motor encoder without position tracking: p2506 * p0433 * p2505 / (p0432 * p2504) p2506 * p0433 * p2505 * p0421 / (p0432 * p2504) for multiturn encoders 2. Motor encoder with position tracking for measuring gear p2506 * p0412 * p2505 / p2504 3. Motor encoder with position tracking for load gear: p2506 * p2721 * p0433 / p0432 4. Motor encoder with position tracking for load and measuring gear: p2506 * p2721 5. Direct encoder without position tracking: p2506 * p0433 / p0432 p2506 * p0433 * p0421 / p0432 for multiturn encoders 6. Direct encoder with position tracking for measuring gear: p2506 * p0412

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 207493 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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