4-40
* The factory setting depends upon the Inverter capacity. The value for a 200 V Class Inverter of 3.7 kW is given.
N: Special Adjustments
Automatic Frequency Regulator: N2
L8-15
OL2 charac-
teristics selec-
tion at low
speeds
0: OL2 characteristics at low
speeds disabled.
1: OL2 characteristics at low
speeds enabled.
It is not recomended to use
another setting than the factory
setting.
0 or 1 1 No A A A 4BBH 5-41
OL2 Sel @
L-Spd
L8-18
Soft CLA
selection 0: Disable
1: Enable
0 or 1 1 No A A A 4BFH -
Soft CLA Sel
L8-20
LF detection
time
Sets the detection time of LF.
0.0 to
2.0
0.2sec No A A A 4C0H -
LF det time
Param-
eter
Number
Name Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO-
BUS
Register
Page
V/f
Open
Loop
Vector
Closed
Loop
Vector
N2-01
Speed feed-
back detec-
tion control
(AFR) gain
Sets the internal speed feed-
back detection control gain.
Normally, there is no need to
change this setting.
If necessary, adjust this param-
eter as follows:
• If hunting occurs, increase
the set value.
• If response is low, decrease
the set value.
Adjust the setting by 0.05 at a
time, while checking the
response.
0.00 to
10.00
1.00 No No A No 584H 5-31
AFR Gain
N2-02
Speed feed-
back detec-
tion control
(AFR) time
constant
Set the time constant 1 to
decide the rate of change in the
speed feedback detection con-
trol.
0 to
2000
50 ms No No A No 585H 5-31
AFR Time
N2-03
Speed feed-
back detec-
tion control
(AFR) time
constant 2
Set the time constant 2 to
decide the rate of change in the
speed.
0 to
2000
750 ms No No A No 586H 5-31
AFR Time 2
Param-
eter
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO-
BUS
Register
Page
V/f
Open
Loop
Vector
Closed
Loop
Vector
Display
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