Omron VARISPEED L7 User Manual

5-43
5
 Special Adjustments: n2 / n5
Automatic Frequency Regulator: n2
Feed Forward: n5
Param-
eter
Num-
ber
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO-
BUS
Register
Page
V/f
Open
Loop
Vector
Closed
Loop
Vector
Closed
Loop
Vector
(PM)
Display
n2-01
Speed feedback
detection control
(AFR) gain
Sets the internal speed feedback
detection control gain.
Normally, there is no need to
change this setting.
If necessary, adjust this parame-
ter 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 - A - - 584H 6-34
AFR Gain
n2-02
Speed feedback
detection control
(AFR) time con-
stant
Set the time constant 1 to decide
the rate of change in the speed
feedback detection control.
0 to
2000
50 ms No - A - - 585H 6-34
AFR Time
n2-03
Speed feedback
detection control
(AFR) time con-
stant 2
0 to
2000
750 ms No - A - - 586H 6-34
AFR Time 2
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
Page
Display V/f
Open
Loop
Vector
Closed
Loop
Vector
Closed
Loop
Vector
(PM)
n5-01
Feed forward con-
trol selection
Enables or disables the feed for-
ward control.
0:Disabled
1:Enabled
0 or 1
i
No - -
A
1
-
5B0H 6-35
Feedfoward Sel -
A
0
n5-02
Motor acceleration
time
Set the time required to acceler-
ate the motor at the rated torque
(T
100
) to the rated speed (Nr).
J: GO
2
/4, P: Motor rated output
However,
0.001
to
60.000
0.154 s
*1
No - - A A 5B1H 6-35
Motor Accel Time
n5-03
Feed forward pro-
portional gain
Sets the proportional gain for
feed forward control.
Speed reference response will
increase as the setting of
n5-03 is increased.
0.00 to
500.00
1.00 No - - A A 5B2H 6-35
Feedfoward Gain
t
a
2π Jkgm
2
[]N
r
rpm[]⋅⋅
60 T
100
Nm[]⋅
-----------------------------------------------------------
=
100
60
2π
------
PkW[]
N
r
rpm[]
----------------------
10
3
N
m
[⋅⋅=

Omron VARISPEED L7 Specifications

General

Brand	Omron
Model	VARISPEED L7
Category	Inverter
Language	English