Parker Compax3 S150 V4 - Stiffness of the Speed Controller

Parker EME
Setting up Compax3
I11 T11 192-120101 N6 - March 2004 69
4.4.1.1 Stiffness of the speed controller
The stiffness is proportional to the control loop speed.
Nominal value: 100%
On increasing stiffness:
Control action becomes faster. The control loop oscillates above a critical threshold
value. Set the stiffness with an adequate safety margin with respect to the
oscillation threshold value.
On decreasing stiffness:
Control action becomes slower. This increases the tracking error. Current limiting
will be reached later.
>100%
=100%
<100%
t
3
3
3
1
2
1: target value
2: actual value
3: stiffness
2100.2: Stiffness of the speed controller
Unit: % Range: 10 ... 100 000 Standard value: 100%
The stiffness is proportional to the control loop speed.