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117

PwrDn Data Chksm

Allen-Bradley · PowerFlex 750

¿Qué significa 117 ?

An internal data error indicating a checksum mismatch for power-down data. This means the critical data stored for system recovery after a power cycle is corrupt. This could lead to incorrect system recovery or parameter loading, compromising drive stability and reliable operation.

Causas comunes

  • Corrupted non-volatile memory (NVRAM) storing power-down data due to power fluctuations or age.
  • Internal communication errors on the control board during critical data saving operations.
  • Firmware bug causing improper data writing or reading of power-down configuration.
  • EMI/RFI interference affecting the integrity of data storage during power-down sequences.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    1. Record all critical drive parameters from the HMI or using programming software.

  2. 2

    2. Perform a drive parameter reset to factory defaults (e.g., setting 'P1-02' to '2') to clear potentially corrupt data.

  3. 3

    3. Re-enter or restore drive parameters from a known good backup file.

  4. 4

    4. Cycle input power to the drive by switching off and on the main disconnect for at least 60 seconds.

  5. 5

    5. If the fault persists after parameter reset and power cycle, replace the main control board.

Ver todos los códigos en este manual (60)
Datos técnicos verificados. Última actualización: March 2026

Fallas relacionadas

Fuente: Allen-Bradley PowerFlex 750