6
-114
Torque Control
With flux vector control or open-loop vector control 2, the motor's output torque can be controlled by a torque
reference from an analog input. Set d5-01 to 1 to control torque.
Related Constants
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
Display
V/f
V/f
with
PG
Open
Loop
Vector
1
Flux
Vec-
tor
Open
Loop
Vector
2
d5-01
Torque control
selection
0: Speed control (C5-01 to C5-
07)
1: 0 to -10 V, no lower limit
To use the function for switching
between speed and torque control,
set to 0 and set the multi-function
input to “speed/torque control
change.”
0 or 1
0
No
No
No
No
A
A
Torq Control
Sel
d5-02
Torque
reference delay
time
Set the torque reference filter pri-
mary delay time in ms units.
This function can be used to
adjust the noise of the torque con-
trol signal or the responsiveness
with the host controller. When
oscillation occurs during torque
control, increase the set value.
0 to
1000
0 ms
*
No
No
No
No
A
A
Torq Ref Filter
d5-03
Speed limit
selection
Set the speed limit command
method for the torque control
mode.
1: The analog input limit from a
frequency reference
2: Limited by d5-04 constant set-
ting values.
1 or 2
1
No
No
No
No
A
A
Speed Limit Sel
d5-04
Speed limit
Set the speed limit during torque
control as a percentage of the
maximum output frequency.
This function is enabled when d5-
03 is set to 2. Directions are as
follows:
+: Run command direction
-: Opposite of run command
-120 to
+120
0%
No
No
No
No
A
A
Speed Lmt
Value
d5-05
Speed limit bias Set the speed limit bias as a per-
centage of the maximum output
frequency.
Bias is applied to the specified
speed limit. It can be used to
adjust the margin for the speed
limit.
0 to 120
10%
No
No
No
No
A
A
Speed Lmt Bias
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