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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
Verify that the maximum ambient temperature around the drive enclosure has not been exceeded.
- 2
Check the operation of the cooling fan (e.g., for obstructions, wear, or failure).
- 3
Check for excess load on the motor, which would increase drive current and heat generation.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Allen-Bradley PowerFlex 700