LSIS 6731001500, User Manual

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Learning Advanced Features
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.
Group 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 %
Anti-hunting Regulation Setting Details
Code Description
CON-13 AHR Sel
Selects the Anti-hunting regulator operation.
Setting Function
0 No Disable anti-hunting regulation.
1 Yes Enable anti-hunting regulation.
CON-14 AHR P-Gain
Increasing AHR proportional gain improves responsiveness of the
anti-hunting regulation. However, current oscillation may result if
AHR proportional gain is set too high.
CON-15 AHR Low Freq
CON-16 AHR High Freq Sets the lower limit frequency (CON-15) and the maxim limit
frequency (CON-16) for anti-hunting regulation.