Brake Resistor and Regenerative Energy

As a motor decelerates it behaves like a generator and pushes energy back into the drive's DC link. If this energy cannot be dissipated, the DC-link voltage rises and an overvoltage fault occurs.

Solutions

1. Extend the deceleration ramp (simplest)
2. Enable the overvoltage controller
3. Add a brake chopper + resistor (converts energy to heat)
4. Use a regenerative (active front end) drive (returns energy to the grid)