LSIS LSLV0055H100-4COFN - Anti-Hunting Regulation (Resonance Prevention)

Learning Advanced Features
232
5.24 Anti-hunting Regulation (Resonance Prevention)
This function is used to prevent the hunting of a V/F controlled fan or motor caused by
current distortion or oscillation, due to mechanical resonance or other reasons.
Grou
p
Code
Name
LCD Display
Parameter
Setting
Setting Range
Unit
CON
13
Enable or
disable anti-
hunting
regulation
(resonance
prevention)
AHR Sel
1
Yes
0
No
-
1
Yes
14
Anti-hunting
regulation P-
Gain
AHR P-Gain
1000
0–32767
-
15
Anti-hunting
regulation start
frequency
AHR Low Freq
0
0–AHR High
Freq
Hz
16
Anti-hunting
regulation end
frequency
AHR High
Freq
400.00
AHR Low
Freq–400.00
Hz
17
Anti-hunting
regulation
compensation
voltage limit
AHR Limit
2
0–20
%
Depending on the duration of instantaneous power interruptions and the amount of load inertia,
a low voltage trip may occur even during a kinetic energy buffering operation. Motors may
vibrate during kinetic energy buffering operation for some loads, except for variable torque loads
(for example, fan or pump loads).