YASKAWA SGDV User Manual page 215

6 Adjustments
6.9.4 Mode Switch (P/PI Switching)
(2) Operating Examples for Different Switching Conditions
Using the Torque Reference [Factory Setting]
With this setting, the speed loop is switched to P control when the value of torque reference input exceeds the
torque set in Pn10C. The factory setting for the torque reference detection point is 200% of the rated torque.
Using the Speed Reference
With this setting, the speed loop is switched to P control when the value of speed reference input exceeds the
speed set in Pn10D.
Using Acceleration
With this setting, the speed loop is switched to P control when the speed reference exceeds the acceleration set
in Pn10E.
Using the Position Error
With this setting, the speed loop is switched to P control when the position error exceeds the value set in
Pn10F.
This setting is effective with position control only.
6-64
Speed reference
Speed
Torque reference
+Pn10C
Torque
0
Reference
- Pn10C
PI P PI Control
Speed reference
Speed
Pn10D
PI P Control
Speed reference
Speed
Motor acceleration
+Pn10E
Acceleration
0
- Pn10E
PI Control
PI P
Speed reference
Speed
Position
error
Pn10F
P Control
PI
Motor speed
Time
P
PI Control
Motor speed
Time
PI Control
Motor speed
Time
P PI Control
Motor speed
Time
PI Control