YASKAWA VS-616G5 Series Programming Manual page 51

· When [-1 × speed limit bias (D5-05)] < motor speed < [speed limit + D5-05], torque control is acti-
vated using the set torque reference.
· When motor speed > [speed limit + D5-05], torque control is activated using the set torque refer-
ence.
· When motor speed < [-l × D5-05], the speed limiting circuit outputs a positive torque reference to
prevent the motor speed from increasing in the reverse direction.
Therefore, when torque reference > 0 and speed limit > 0, the torque control range is:
[-l × D5-05] < motor speed < [speed limit + D5-05]
Refer to the following table for more details on the relationship between torque reference, speed limit
and motor speed.
Configuration
Direction of Motor
Rotation
Torque
Reference
(TREF)
Reference
Polarity
Speed
Limit
(NLIM)
Torque Profile
VS-616G5 Programming Manual
Winder Control
Line Direction
M
Forward Reverse
+
+
Torque Torque
Torque Torque
Limit Limit
TREF
NLIM
0
NLIM
Speed
TREF
D5-05
Torque
Limit
D5-05
Section D: Reference Parameters
Unwinder Control
N T
T
N
Motor
M
Forward
- -
- +
Torque
Torque
Limit
NLIM
0 0
Speed Speed
Torque
Limit
D5-05
D5 Torque Control
Line Direction
Motor
Reverse
+
-
Torque
Torque
Limit
TREF
NLIM 0
Speed
Torque
Limit
D5-05
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