Omron SYSDRIVE 3G3RV Series User Manual page 194

Param-
eter
Number
Display
Hunting-
prevention
gain
N1-02
Hunt Prev
Gain
nSpeed Feedback Protection Control Functions: N2
Parameters for speed feedback protection control functions are shown in the following table.
Param-
eter
Number
Display
Speed feed-
back detec-
tion control
(AFR) gain
N2-01
AFR Gain
Speed feed-
back detec-
tion control
N2-02
(AFR) time
constant
AFR Time
Speed feed-
back detec-
tion control
N2-03
(AFR) time
constant 2
AFR Time 2
-68
5
Name
Description
LCD
Set the hunting-prevention
gain multiplication factor.
Normally, there is no need to
make this setting.
Make the adjustments as fol-
lows:
• If vibration occurs with
light load, increase the set-
ting.
• If the motor stalls, reduce
the setting.
If the setting is too large, the
voltage will be too sup-
pressed and the motor may
stall.
Name
Description
LCD
Set the internal speed feed-
back detection control gain
using the multiplication
function.
Normally, there is no need to
make this setting.
Adjust this parameter as fol-
lows:
• 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.
Set the time constant to
decide the rate of change in
the speed feedback detec-
tion control.
Set the time constant to
decide the amount of change
in the speed.
Control Methods
Change
during
Setting Factory
Range Setting
Opera-
V/f
tion
0.00 to
1.00 No
2.50
Control Methods
Change
during
Setting Factory
Range Setting
Opera-
V/f
tion
0.00 to
1.00 No No
10.00
0 to
50 ms No No
2000
0 to
750 ms No No
2000
V/f
Register Page
Open
with
Loop
PG
A A No 581H
V/f
Register Page
Open
with
Loop
PG
No A 584H
No A 585H
No A 586H
4-18
6-38
4-18
6-39
6-39
6-39