Torque Control - Omron VARISPEED G7 Instruction 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 Constants
Con-
stant
Number
d5-01
d5-02
d5-03
d5-04
d5-05
-114
6
Name
Description
Display
Torque control 0: Speed control (C5-01 to C5-
selection 07)
1: 0 to -10 V, no lower limit
To use the function for switching
between speed and torque control,
Torq Control
set to 0 and set the multi-function
Sel
input to "speed/torque control
change."
Torque Set the torque reference filter pri-
reference delay mary delay time in ms units.
time This function can be used to
adjust the noise of the torque con-
trol signal or the responsiveness
with the host controller. When
Torq Ref Filter
oscillation occurs during torque
control, increase the set value.
Speed limit Set the speed limit command
selection method for the torque control
mode.
1: The analog input limit from a
frequency reference
Speed Limit Sel
2: Limited by d5-04 constant set-
ting values.
Speed limit Set the speed limit during torque
control as a percentage of the
maximum output frequency.
This function is enabled when d5-
Speed Lmt
03 is set to 2. Directions are as
Value
follows:
+: Run command direction
-: Opposite of run command
Speed limit bias Set the speed limit bias as a per-
centage of the maximum output
frequency.
Bias is applied to the specified
Speed Lmt Bias
speed limit. It can be used to
adjust the margin for the speed
limit.
Change
Setting Factory during
Range Setting Opera-
V/f
tion
0 or 1 0 No No
0 to
*
No No
0 ms
1000
1 or 2 1 No No
-120 to
0% No No
+120
0 to 120 10% No No
Control Methods
Open Open
V/f Flux
Loop Loop
with Vec-
Vector Vector
PG tor
1 2
No No A A
No No A A
No No A A
No No A A
No No A A