Bleeder overload

What does F320 mean?

The DIAX04 SSE-03VRS drive has detected that its internal or external braking resistor (bleeder) is experiencing an overload condition. This means the bleeder is dissipating too much energy, often due to frequent or heavy braking, potentially leading to overheating and damage to the resistor or the drive. The drive faults to prevent thermal damage.

• Excessive regenerative energy generated by the motor during braking, exceeding the bleeder's capacity.
• Braking resistor is undersized for the application's braking duty cycle.
• Faulty braking resistor or thermal switch on the resistor is open or tripped.
• Braking resistor wiring is damaged or has high resistance, causing inefficient energy dissipation.
• Incorrect braking chopper parameters (e.g., S-0-0082) or DC bus overvoltage threshold set in the DIAX04 SSE-03VRS drive.

Click steps to track your progress.

1. 1

   Allow the braking resistor to cool down. Inspect the resistor for any signs of overheating or damage.

2. 2

   Verify the braking resistor's resistance value and power rating against the DIAX04 SSE-03VRS drive's specifications and the application's requirements.

3. 3

   Check the wiring connections to the braking resistor for looseness, corrosion, or damage. Ensure the thermal switch (if present) is functioning.

4. 4

   Reduce the deceleration ramps or increase the cycle time of braking events in the application program to reduce regenerative energy.

5. 5

   Review the braking chopper parameters (e.g., S-0-0082, S-0-0083) in the DIAX04 SSE-03VRS drive to ensure they are correctly configured. Consider a larger braking resistor if the duty cycle cannot be reduced.