gefran BDI50 Series User Manual page 124

acceleration / deceleration time + S curve time.

Please set the required individual S curve times in the parameters (11-04~11-07).

When S curve time (11-04~11-07) is set as 0, the S curve function is disabled.

The calculation of S curve time is based on
(01-02), Please refer to the parameters (00-14/00-15/00-16/00-17).
11- 08 Skip frequency 1
11- 09 Skip frequency 2
11-10 Skip frequency 3
【0.00 ~ 599.00】Hz
Range
11-11 Skip frequency range. (± frequency band)
【0.00 ~ 30.00】Hz
Range
Skip frequency parameters can be used to avoid mechanical resonance in certain applications.
Example: 11-08=10.00(Hz); 11-09=20.00(Hz); 11-10=30.00(Hz); 11-11=2.00(Hz).
10Hz 20Hz
11-13 Regeneration Prevention Function
【0】: Regeneration prevention function is disabled
【1】: Regeneration prevention function is enabled
【2】: Regeneration prevention function is enabled only during constant
Range
speed

Regeneration Prevention Function:
During excessive energy regeneration, the Vpn (DC bus) voltage will Increase and lead to
OV (over voltage), to avoid over voltage due to regeneration the output frequency will be
increased..
Regeneration prevention function can be set according to the selections above.
Example: Regeneration prevention during acceleration.
Set value of 11-14
Vpn(DCV)
Output
frequency
（Hz）
Regeneration prevention at work
±2Hz=8~12Hz
±2Hz=18~22Hz
±2Hz=28~32Hz
30Hz
t
t
4-77
the Maximum output frequency
Skip frequency
11-11
11-10
11-09
11-08
of motor