Yaskawa VS-616G5 Series Revision F Programming Manual - Manual (Page 51)

VS-616G5 Programming Manual 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.
Winder Control Unwinder Control
Configuration
Direction of Motor
Rotation
Forward Reverse Forward Reverse
Reference
Polarity
Torque
Reference
(TREF)
+ - - +
Speed
Limit
(NLIM)
+ - + -
Torque Profile
M Motor
Line Direction
T N
M Motor
Line Direction
T
N
0
D5-05
Speed NLIM
TREF
Torque
Torque
Limit
Torque
Limit
D5-05
Speed
NLIM
TREF
Torque
Torque
Limit
0
D5-05
Speed
NLIM
Torque
Torque
Limit
0
Torque
Limit
0
D5-05
Speed
NLIM
TREF
Torque
Torque
Limit
Torque
Limit
Section D: Reference Parameters
D5 Torque Control