Over-current at Regeneration (ECM)

What does 2 mean?

An over-current condition has occurred in the DC link during motor regeneration (deceleration). This indicates an issue with handling regenerative energy, potentially due to load or regenerative discharge unit problems.

• Excessive current generated during the motor's regenerative braking phase.
• Regenerative energy exceeds the capacity of the braking resistor or DC bus.
• Faulty regenerative braking circuit or component.
• Incorrect settings for regeneration current limits (e.g., P3-xx).
• Sudden deceleration of a high inertia load.

Click steps to track your progress.

1. 1

   Check the motor load during deceleration phases. Ensure it is within the amplifier's regenerative capacity.

2. 2

   Verify the operation of the regenerative discharge unit and its connections.

3. 3

   Inspect the servo amplifier for any regenerative over-current alarms.