Why do the brushes on my SepEx motor wear down so quickly?
SepEx controllers are able to regenerate the braking energy by using the motor as a generator. However if the regen braking current is set too high then the commutator can suffer from flashover and an electric arc is set-up which can vaporize the carbon brushes. Regeneration is more likely to induce this due to the raised voltage across the motor. The regen current should be reduced to a lower level.
