Note that when there is high inertia on the output side and the motor is operating at high
speed, the load’s inertia will cause the motor to continue rotating even if the inverter output
is blocked.
4.15.4 Power Braking
When the inverter’s DC voltage rises above a specified level due to motor
regenerated energy, a control is made to either adjust the deceleration gradient level
or reaccelerate the motor in order to reduce the regenerated energy. Power braking
can be used when short deceleration times are needed without brake resistors, or
when optimum deceleration is needed without causing an over voltage fault trip.