HW control of braking resistor

What does E2802 mean?

This warning indicates an issue with the hardware control circuit for the braking resistor. This could prevent the braking resistor from dissipating regenerated energy, potentially leading to overvoltage faults.

• Fault in the braking resistor control circuitry within the drive.
• External braking resistor or its wiring is open-circuited or damaged.
• Malfunction of the internal braking transistor or associated components.
• Incorrect parameterization of the braking resistor characteristics.

Click steps to track your progress.

1. 1

   Inspect the external braking resistor and its connections for damage, loose wiring, or open circuits. Measure its resistance to confirm it's within specifications.

2. 2

   Verify that the braking resistor cable is correctly wired and securely terminated to the drive.

3. 3

   Check the drive's internal diagnostics for specific sub-errors related to the braking circuit.

4. 4

   If possible, test the braking transistor using drive diagnostics or by observing DC bus voltage during regeneration with a known good resistor.