3: When the power is restored during the ramp to stop interval, the drive is
restarted and re-accelerated again.
b. The drive cannot be started with generator power restart simultaneously at power
off. The drive must be started after the generator restarts.
c. The ramp to stop function is applicable for the inertial load. Adjusting setting
values of functions F3.32~F3.34 can make re-generative energy from motor
during the motor ramp to stop feedback to the drive; meanwhile, the motor
decelerates to stop.
【F3.31】 The voltage Level Setting at Power Failure
a. When the voltage level of power source is lower than the voltage level setting of
F3.31, the motor will be decelerating for ramp to stop.
b. The settings are listed as below:
100V series range: 75.0~96.0V
200V series range: 150.0~192.0V
400V series range: 300.0~384.0V
【F3.32】 Subtracted Frequency of Deceleration at Power Failure
a. When the motor is decelerating for ramp to stop during the power failure, the
output frequency=drive’s original output frequency – subtracted frequency(F3.32)
b. Setting range: 0.0~20.0Hz.
【F3.33】 Deceleration Time 1 at Power Failure
Set the deceleration time when the drive output frequency is greater than turning
frequency (F3.35). Setting range: 0.0~3200.0sec.
【F3.34】 Deceleration Time 2 at Power Failure
Set the deceleration time when the output frequency is less than turning frequency
(F3.35). Setting range: 0.0~3200.0sec.
【F3.35】 Turning Frequency at Power Failure
Set the turning frequency for the two sections of deceleration time is to set the
turning point of two deceleration operations(F3.33 and F3.34).
Setting range: 0.0~400.00Hz.
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