137
To
rque bias
funct
ion
840
Torque bias selection
1
9999
0
Set the contact signal (X42, X43) based-torque bias
amount using
Pr.841
to
Pr.843
.
1
Set the terminal 1-based torque bias amount as
desired in
C16
to
C19
. (forward rotation)
2
Set the terminal 1-based torque bias amount as desired
in
C16
to
C19
. (reverse rotation)
3
The terminal 1-based torque bias amount can be set
automatically in
C16
to
C19
,
Pr.846
according to the
load.
9999
Without torque bias, rated torque 100%
841
Torque bias 1
1%
9999
600 to
999%
Negative torque bias amount (-400% to -1%)
842
Torque bias 2
1000 to
1400%
Positive torque bias amount (0% to 400%)
843
Torque bias 3
9999
Without torque bias setting
844
Torque bias filter
0.001s
9999
0 to 5s
Time until torque rises.
9999
Same operation as when 0s is set.
845
Torque bias operation time
0.01s
9999
0 to 5s
Time for maintaining torque equivalent to the torque
bias amount.
9999
Same operation as when 0s is set.
846
Torque bias balance
compensation
0.1V
9999
0 to 10V
Set the voltage under balanced load.
9999
Same operation as when 0V is set.
847
Fall-time torque bias
terminal 1 bias
1%
9999
0 to 400%
Set the bias value of the torque command.
9999
Same as at a rise time (
C16
,
C17
).
848
Fall-time torque bias
terminal 1 gain
1%
9999
0 to 400%
Set the gain value of the torque command.
9999
Same as at a rise time (
C18
,
C19
).
—
849
Refer to
Pr. 74
.
850
Refer to
Pr. 10
.
853
Refer to
Pr. 285
.
E
xc
ita
tio
n
r
a
tio
854
Excitation ratio
1%
100%
0 to 100%
Set the excitation ratio under no load.
F
unc
tion
assignm
ent
of
analog input
t
e
rminal
858
Terminal 4 function
assignment
1
0
0
Frequency/speed command
1
Magnetic flux command
4
Stall prevention/torque limit
9999
No function
868
Terminal 1 function
assignment
1
0
0
Frequency setting auxiliary
1
Magnetic flux command
2
Regenerative torque limit
3
Torque command
4
Stall prevention/torque limit/torque command
5
Forward/reverse rotation speed limit
6
Torque bias
9999
No function
—
859, 860
Refer to
Pr. 82
.
Notc
h f
ilt
er
862
Notch filter time constant
1
0
0 to 60
You can use the mechanical resonance speed to
make this setting to reduce the response level of the
mechanical resonance frequency band, avoiding
mechanical resonance.
863
Notch filter depth
1
0
0
Deep (-40dB)
1
↑
(-14dB)
2
↓
(-8dB)
3
Sharrow (-4dB)
Func
tio
n
Parameter
Name
Incre
ments
Initial
Value
Range
Description
Re
la
te
d
p
ara
m
e
te
rs
VectorV
e
c
to
r
Vector
SensorlessS
e
n
s
o
rl
e
s
s
Sensorless
VectorV
e
c
to
r
Vector
SensorlessS
e
n
s
o
rl
e
s
s
Sensorless
VectorV
e
c
to
r
Vector