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Feed Forward: N5
User parameters for the feed forward control are shown in the following table.
Name
Param-
eter
Number
Display
Feed for-
ward con-
Select the feed forward con-
trol
trol.
N5-01
selection
0: Disabled
1: Enabled
Feed for-
ward
Set the time required to
accelerate the motor at the
Motor
rated torque (T
accelera-
rated speed (Nr).
tion time
2
J: GD
N5-02
put
2π J [kgm 2 ] Nr [min -1 ]
ta =
Motor
However,
Accel Time
T 100 =
Feed for-
Set the proportional gain for
ward pro-
feed forward control.
portional
N5-03
Speed reference response
gain
will increase as the setting of
Feed for-
N5-03 is increased.
ward Gain
Response
Sets the response frequency
frequency
to a speed command in units
for speed
of 0.01 Hz.
command
Used when the machine
N5-04
rigidity is high and the N5-
03 is correctly adjusted.
Spd
Usually, setting is not
Response F
required.
* The factory setting depends on the Inverter capacity. The value for a 200 V Class Inverter for 0.4 kW is given.
Setting
Description
Range
0 or 1
) to the
100
0.001
/4, P: Motor rated out-
to
10.000
[s]
60 T 100 [N m]
60
P [kW]
× 10 3 [N m]
Nr [min -1 ]
2π
0.00 to
100.00
0.00 to
50.00
Control Methods
Change
Factory
during
V/f
Open
Setting
Opera-
V/f
with
Loop
tion
PG
Vector
0
No
No
No
0.178 s
No
No
No
*
1.0
No
No
No
40.00
No
No
No
Hz
User Parameter Tables
Regis-
Flux
Page
ter
Vec-
tor
4-22
No
A
5B0H
6-176
4-22
No
A
5B1H
6-176
4-22
No
A
5B2H
6-176
4-22
No
A
5B3H
6-176
5-
71
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Troubleshooting
