Parker AC30V Série Manuel Technique page 261

Filter On Torque Dmd
Parameters::Motor Control::Filter On Torque Dmd
This feature allows to select the type of filter applied to the Torque setpoint:
- Either the output of the speed loop PI corrector if the speed loop is active
- Or the torque Setpoint .
Torque Setpoint
Speed Demand
Speed Feedback
The general structure of the filter is given below :
X(n)
+ .
a a z
( ) = 0 1
H z
1 + . −
b z
1
AC30V series Variable Speed Drive
Speed or
Torque Control
PI Controller
a0
-1
Z
-b1 a1
-1
Z
a2
-b2
�� =
��
− 1 + . − 2
a z
2
⋅ +
or a x a
1 + . − 2
0
n
b z
2
Torque Limits
Filter On
Torque
Dmd Torque Demand
Y(n)
⋅ + ⋅ − ⋅ − ⋅
x a x b y b y
1 − 1 2 − 2 1 − 1 1
n n n
Parameter Reference
− 2
n
D-35