33
Functional Description
4
Motor with SC speed controller
4.3
Controller parameters
The integrated speed controller is set in the factory so that problem free operation is usually possi-
ble. The speed controller has an integrated feature for specifying appropriate parameters if adjust-
ment of the governor to the controlled system is necessary for special applications. See
section 4.3.5
"Technical Information"
.
The targets set for the control's properties also depend on the application.
Above all, a differentiation is made between the stiffness of the control, the uniformity of the speed
within a revolution, the allowed system deviation, the allowed overswing and the required stability
reserves.
The control circuit must also satisfy these requirements to that the controller parameters must also
be adjusted with respect to these.
The PI speed controller used here enables two parameters to be set (proportional and integral-action
component).
Parameter
Meaning
max. value
Units
V
Proportional component
32 767
Digit
VI
Proportional component multiplied by the integral-
action component
65 535
Digit
Delayed Current Error (with error output only)
Activation of the output can be delayed. Even if the current is already limited the output is not acti-
vated until after the time input with DCE. As a result, short-term exceeding of the limit current can
be ignored.
Parameter
Meaning
max. value
Units
Delayed Current Error (DCE)
Delay of activation of the error output
5 100
ms
