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A30810

Power unit: Watchdog timer

Siemens · DCM

Hva betyr A30810 ?

During the booting process, it was detected that the cause of the previous system reset was an SAC (System Access Controller) watchdog timer overflow. This means a critical software process failed to acknowledge the watchdog timer within its allotted time, leading to an unexpected system reset. Repeated occurrences can indicate software instability or resource contention.

Vanlige årsaker

  • Internal software process within the power unit (managed by SAC) exceeded its allocated execution time, leading to a watchdog reset.
  • Firmware bug or anomaly causing a task to become unresponsive or enter an infinite loop.
  • Hardware instability or memory access issues within the SAC controller or associated circuitry.
  • Power supply fluctuations or brownouts during critical operations causing unexpected processor resets.
  • Overloading of the power unit's internal processing resources.

Reparasjonssteg & Sjekkliste

Klikk på steg for å spore fremgangen.

  1. 1

    Perform a complete power cycle of the drive system to reset the power unit and SAC controller.

  2. 2

    Verify the firmware version of the power unit and consider updating to the latest stable release (e.g., via SD card).

  3. 3

    Check the power supply stability to the drive, including input voltage (L1, L2, L3) and control power (e.g., 24VDC), for fluctuations.

  4. 4

    If the watchdog reset occurred during a specific operation, try to simplify the application or reduce the motor load.

  5. 5

    Back up the drive parameters and attempt a factory reset of the power unit, then reload the parameters to eliminate potential corruption.

Se alle koder i denne manualen (60)
Verifisert teknisk data. Sist oppdatert: March 2026

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