gefran BDI50 Series User Manual page 125

Example: Regeneration prevention during constant speed.
Set value of 11-14
Vpn(DCV)
Output
frequency
（Hz）
Regeneration prevention at work
Example: Regeneration prevention during deceleration.
Set value of 11-14
Vpn(DCV)
Output
frequency
（Hz）
Regeneration prevention at work
11-14 Regeneration Prevention Voltage Level
Range
200V: 300.0~400.0 V
400V: 600.0~800.0 V

Regeneration prevention voltage level: if the DC bus voltage level is set too low, then
over-voltage protection will not be reached, but the actual deceleration time will be
extended.
11-15 Regeneration Prevention Frequency Limit
【
Range 0.00~15.00

Sets the regeneration prevention frequency limit.
11-16 Regeneration Prevention Voltage Gain
【
Range 0~200
11-17 Regeneration Prevention Frequency Gain
【
Range
0~200

Parameters 11-16 & 11-17 can be used to enhance the response of the regeneration
prevention control, Excessive adjustment could lead to output frequency instability.

If decreasing the setting of parameter 11-16 is not correcting the output frequency instability
then try decreasing the parameter 11-17.
】
Hz
】%
】%
t
t
t
t
4-78