6-40
Normally, there is no need to make this setting. Adjust the constant as shown below.
• If the motor is vibrating, increase the set value.
• If the motor response is low, decrease the set value.
Hunting-prevention Function
The hunting-prevention function suppresses hunting when the motor is operating with a light load. This func-
tion can be used in V/f and V/f with PG.
Related Constants
* The factory setting depends upon the Inverter capacity. The value for a 200 v Class Inverter of 0.4 kW is given.
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
Display
V/f
V/f
with
PG
Open
Loop
Vector
1
Flux
Vec-
tor
Open
Loop
Vector
2
N1-01
Hunting-pre-
vention func-
tion selection
0: Hunting-prevention function
disabled
1: Hunting-prevention function
enabled
The hunting-prevention function
suppresses hunting when the
motor is operating with a light
load.
This function is enabled in V/f
control method only.
If high response is to be given pri-
ority over vibration suppression,
disable the hunting-prevention
function.
0 or 1 1 No A A No No No 580H
防止失调功能
选择
N1-02
Hunting-pre-
vention gain
Set the hunting-prevention gain
multiplication factor.
Normally, there is no need to
make this setting.
Make the adjustments as follows:
• If vibration occurs with light
load, increase the setting.
• If the motor stalls, reduce the
setting.
If the setting is too large, the volt-
age will be too suppressed and the
motor may stall.
0.00 to
2.50
1.00 No A A No No No 581H
防止失调增益
N1-03
Hunting-pre-
vention time
constant
Set the hunting-prevention pri-
mary delay time in units of ms.
0 to
500
10 ms
*
No A A No No No 582H
防止失调时间
To Next Page
Loading...
