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NB!
If a feedback is not used, its source must be set to
No Function
[0]. par. 20-20
Feedback Function
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:
for details.
[0] *
No function
[1]
Analog input 53
[2]
Analog input 54
[3]
Pulse input 29
[4]
Pulse input 33
[7]
Analog input X30/11
[8]
Analog input X30/12
[9]
Analog Input X42/1
[10]
Analog Input X42/3
[11]
Analog Input X42/5
[100]
Bus feedback 1
[101]
Bus feedback 2
[102]
Bus feedback 3
20-04 Feedback 2 Conversion
Option:
Function:
See par. 20-01
Feedback 1 Conversion
for details.
[0] *
Linear
[1]
Square root
[2]
Pressure to temperature
VLT
®
AQUA Drive Programming Guide
2 Parameter Description
MG.20.O4.02 - VLT
®
is a registered Danfoss trademark
161
2