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9

Transistor Overtemperature

Allen-Bradley · PowerFlex 700

¿Qué significa 9 ?

The output transistors have exceeded their maximum operating temperature. This indicates that the power semiconductors are overheating, which can lead to premature failure of the drive.

Causas comunes

  • Internal temperature of the power transistor or IGBT exceeds limits.
  • Inadequate heatsink cooling or fan failure.
  • Excessive motor current causing transistor heating.
  • High ambient temperature.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Verify that the maximum ambient temperature around the drive enclosure has not been exceeded.

  2. 2

    Check the operation of the cooling fan (e.g., for obstructions, wear, or failure).

  3. 3

    Check for excess load on the motor, which would increase drive current and heat generation.

Ver todos los códigos en este manual (49)
Datos técnicos verificados. Última actualización: March 2026

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