This parameter defines which input will be used as the source
of the first feedback signal.
Analog input X30/11 and Analog input X30/12 refer to inputs on
the optional General Purpose I/O board.
NB!
If a feedback is not used, its source must be set to
No Function
[0]. Parameter 20-10
determines how the three possible feedbacks will be used by the PID Controller.
20-01 Feedback 1 Conversion
Option:
Function:
[0]
*
Linear
[1]
Square root
This parameter allows a conversion function to be applied to
Feedback 1.
Linear
[0] has no effect on the feedback.
Square root
[1] is commonly used when a pressure sensor is
used to provide flow feedback (
(
flow
∝
pressure
)
).
20-03 Feedback 2 Source
Option:
Function:
See
Feedback 1 Source
, par. 20-00 for details.
20-04 Feedback 2 Conversion
Option:
Function:
See
Feedback 1 Conversion
par. 20-01 for details.
20-06 Feedback 3 Source
Option:
Function:
See
Feedback 1 Source
, par. 20-00 for details.
20-07 Feedback 3 Conversion
Option:
Function:
See
Feedback 1 Conversion
, par. 20-01 for details.
20-12 Reference/Feedback Unit
Option:
Function:
[0]
None
[1]
*
%
[5]
PPM
[10]
1/min
VLT
®
AQUA Drive Programming Guide
2. Parameter Description
MG.20.O2.02 - VLT
®
is a registered Danfoss trademark
175
2