Danfoss VLT AQUA FC 202 - Page 164

P 20-81
PID Normal/Inverse
Control
PID
Ref.
Handling
Feedback
Handling
Scale to
speed
P 4-10
Motor speed
direction
To motor
control
(Illustra-
tion)
(Illustra-
tion)
e30ba359.13
S
100%
0%
-100%
100%
*[-1]
_
+
Illustration 92: Control Structure Closed-loop
While the default values for the closed-loop controller of the drive often provide satisfactory performance, the control of the system
can often be optimized by adjusting parameters. It is also possible to autotune the PI constants.
AJ300847815559en-000101 / 130R0337164 | Danfoss A/S © 2020.09
Basic Operating Principles
VLT® AQUA Drive FC 202
Design Guide