Torque Control - YASKAWA CIMR-G7U Technical Manual



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 Parameters
Parameter
Number
Torque Control
Selection
d5-01
Torq Control
Sel
Torque
Reference
Delay Time
d5-02
Torq Ref Filter
Speed Limit
Selection
d5-03
Speed Limit Sel
Speed Limit
d5-04
Speed Lmt
Value
-120
6
Name
Description
Display
Selects speed or torque control.
The torque reference is set via
analog input A2 or A3 when it is
set for "torque reference" (H3-05
or H3-09 = 13). Torque reference
is set as a percentage of motor
rated torque. To use this function
for switching between speed and
torque control, set to 0 and set a
multi-function input to "speed/
torque control change" (H1-xx =
71).
0: Speed Control (controlled by
C5-01 to C5-07)
1: Torque Control
Sets the torque reference delay
time in milliseconds.
This function can be used to
correct for noise in the torque
control signal or the
responsiveness with the host
controller. When oscillation
occurs during torque control,
increase the set value.
Sets the speed limit command
method for the torque control
method.
1: Analog Input - Limited by the
output of the soft starter (b1-01
selection and active acceleration/
deceleration and S-curve
settings).
2: Program Setting - Limited by
d5-04 setting value.
Sets the speed limit during torque
control as a percentage of the
maximum output frequency
(E1-04).
This function is enabled when
d5-03 is set to 2. Directions are as
follows.
+: run command direction
-: run command opposite
direction
Change
Setting Factory
during
Range Setting
V/f
Operation
0 to 1 0 No No
0 to
*
No No
0ms
1000
1 or 2 1 No No
-120
to 0% No No
+120
Control Methods
Open Open
V/f
Loop Flux Loop
with
Vector Vector Vector
PG
1 2
No No A A
No No A A
No No A A
No No A A