Overcurrent external braking resistor

What does F8838 mean?

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.

• 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.

Click steps to track your progress.

1. 1

   Verify the braking resistor's power rating and resistance value match the IndraDrive's specifications and the application's regenerative energy requirements.

2. 2

   Check the mechanical system and application cycle to ensure the braking duration and frequency are not excessive.

3. 3

   Disconnect power and inspect the braking resistor and its connecting cables for short circuits or damage.

4. 4

   Measure the resistance of the braking resistor to ensure it matches its specified value.

5. 5

   If external components are verified, the internal braking chopper or its control within the IndraDrive may be faulty.