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10.17 Over voltage trip prevention deceleration and Power Braking
Group Display Parameter Name Setting Range Default Unit
Function
group 1 F4 Select stop method 3 0 ~ 3 0
F59 BIT 0: Stall prevention
under Accel
BIT 1: Stall prevention
under constant speed
BIT 2: Stall prevention
under Decel
- 0 ~ 7 0
F61
Select voltage limit under
Decel
- 0 ~ 1 0

To prevent overvoltage trip when reducing speed, set BIT2 of F59 to 1 and set 3 of F4 for
Power Braking.

Overvoltage trip prevention when reducing speed: this function prevents overvoltage trip
when reducing speed or at stop by using the regeneration braking power.

Power Braking: Adjusting the deceleration slope or accelerate again, when inverter’s DC
voltage rises above a certain level by the electric motor’s regeneration energy. It can be used
when short deceleration time without braking resistance is needed. However, be aware that
the deceleration time can get longer than the set one and when it’s used at a load that
frequently decelerates, be cautious of damage caused by the motor’s overheating.
CAUTION
Stall prevention and Power Braking only operate when decelerating, and Power
Braking has priority. That is, when BIT2 of F59 and Power Braking of F4 are both
set, Power Braking operates.
F61 (selecting voltage restriction when decelerating) is visible when BIT2 of F59 is
set.
Overvoltage trip may occur, if the deceleration time is too short or inertia is too big.