Where X is the external reference, the preset reference or
the sum of these and Y is
3-14 Preset Relative Reference
in
[%].
If Y,
3-14 Preset Relative Reference
is set to 0%, the
reference is not affected by the scaling.
2.4.2 Feedback Handling
Feedback handling can be configured to work with
applications requiring control. Configure the feedback
source via parameter
20-00 Feedback 1 source.
2.4.3 Feedback Conversion
In some applications it may be useful to convert the
feedback signal. One example of this is using a pressure
signal to provide flow feedback. Since the square root of
pressure is proportional to flow, the square root of the
pressure signal yields a value proportional to the flow. See
.
130BB895.10
+
-
PI
P
P
P
Ref.
signal
Desired
flow
FB conversion
Ref.
FB
Flow
FB
signal
Flow
P 20-01
Illustration 2.12 Feedback Conversion
Product Overview
VLT
®
DriveMotor FCP 106 and FCM 106 Design Guide
MG03M102 -
08/2015
15
2
2
Summary of Contents for VLT DriveMotor FCM 106
Page 2: ......
