Overcurrent external braking resistor
Indramat · Indradrive
¿Qué significa F8838 ?
An excessive current was detected flowing through the external braking resistor, indicating that the resistor is dissipating more power than its rated capacity. This can lead to resistor overheating, damage, or even fire hazards.
Causas comunes
- Braking resistor is undersized for the application's regenerative energy.
- Excessive or prolonged braking cycles.
- Short circuit within the braking resistor or its cabling.
- Faulty braking chopper circuit within the IndraDrive, permanently activating the resistor.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Verify the braking resistor's power rating and resistance value match the IndraDrive's specifications and the application's regenerative energy requirements.
- 2
Check the mechanical system and application cycle to ensure the braking duration and frequency are not excessive.
- 3
Disconnect power and inspect the braking resistor and its connecting cables for short circuits or damage.
- 4
Measure the resistance of the braking resistor to ensure it matches its specified value.
- 5
If external components are verified, the internal braking chopper or its control within the IndraDrive may be faulty.