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4.32.9 Torque detection filter function (Pr. 827, Pr. 837
Set the time constant of the primary delay filter relative to the torque feedback signal.
Since the current loop response reduces, use it with the factory setting.
Parameter
Name
Torque detection filter 1
827
(when RT signal is off)
Torque detection filter 2
837
(when RT signal is on)
4.32.10 Model speed control gain (Pr. 828
Parameter
Name
828
Model speed control gain
For details, refer to page 51.
4.33 Torque biases (Pr. 840 to Pr. 848)
4.33.1 Torque bias function (Pr. 840 to Pr. 848
This function accelerates the rise of the torque at a start. Adjust the torque at a motor start using the contact
signals or analog signals .
Parameter
840
Torque bias selection
841
Torque bias 1
842
Torque bias 2
843
Torque bias 3
844
Torque bias filter
845
Torque bias operation time
846
Torque bias balance compensation
847
Fall-time torque bias No. 3 bias
848
Fall-time torque bias No. 3 gain
Block diagram
Speed command
Torque bias selection 1
Torque bias selection 2
Factory Setting
0s
9999
Factory Setting
60%
Name
Factory Setting
+
Speed command
-
Internal parameters
DI x
Pr.841
Pr.842
DI x
Pr.843
SD
+
HOLD
-
Pr.846
189
Torque biases (Pr. 840 to Pr. 848)
with
without
Encoder
Encoder
Speed
Setting Range
0 to 0.1s
0 to 0.1s, 9999
with
without
Condi-
tional PLC
SSC
Encoder
Encoder
)
Position
Speed
Setting Range
0 to 1000%
with
without
Encoder
Encoder
)
Speed
Setting Range
9999
0 to 3, 9999
9999
600 to 1400%, 9999
9999
600 to 1400%, 9999
9999
600 to 1400%, 9999
9999
0 to 5s, 9999
9999
0 to 5s, 9999
9999
0 to 10V, 9999
9999
0 to 400%, 9999
9999
0 to 400%, 9999
Speed
Torque
control
control
Pr.840
CW<=cage
Pr.905
Pr. 826, torque
setting filter
Pr.904
CW>=cage
with
without
Condi-
tional PLC
SSC
Encoder
Encoder
)
Position
Torque
Remarks
Extended mode
Remarks
Extended mode
Remarks
Extended mode
IM
Encoder
CW
Cage
3
Load
detector
4
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