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7954 A840

CC SBH rot. speed too high %.2s

Heidenhain · NC Control

Was bedeutet 7954 A840 ?

The maximal permissible velocity of the standstill monitoring (SBH) was exceeded. This indicates that the axis moved faster than allowed when standstill monitoring should have been active.

Häufige Ursachen

  • Maximal permissible velocity of the standstill monitoring was exceeded.

Reparaturschritte & Checkliste

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

  1. 1

    Verify that the axis is indeed at standstill or below the SBH speed limit when standstill monitoring is active.

  2. 2

    Inspect the drive and encoder feedback system for the affected axis to ensure accurate speed measurement and reliable control.

  3. 3

    Check the SBH (Safe Controlled Stop or Standstill Monitoring) parameters in the NC control to ensure they are configured correctly and the speed limit is appropriate for the application.

  4. 4

    Look for any external mechanical forces or disturbances that could cause unexpected movement or speed when standstill is expected.

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Verifizierte technische Daten. Zuletzt aktualisiert: March 2026

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