20-00 Feedback 1 Source
Option:
Function:
NOTICE
If feedback is not used, set its
source to
[0] No Function
.
Parameter 20-20 Feedback Function
determines how the PID controller
uses the 3 possible feedbacks.
Up to 3 different feedback signals can
be used to provide the feedback signal
for the frequency converter’s PID
controller.
This parameter defines which input is
used as the source of the first feedback
signal.
Analog input X30/11 and analog input
X30/12 refer to inputs on VLT
®
General
Purpose I/O MCB 101.
[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
[15]
Analog Input
X48/2
[99]
Normal
Feedback
[100] Bus Feedback 1
[101] Bus Feedback 2
[102] Bus feedback 3
[104] Sensorless Flow
Requires set-up by MCT 10 Set-up
Software with sensorless plug-in.
[105] Sensorless
Pressure
Requires set-up by MCT 10 Set-up
Software with sensorless plug-in.
[200] Ext. Closed Loop
1
[201] Ext. Closed Loop
2
[202] Ext. Closed Loop
3
20-01 Feedback 1 Conversion
This parameter allows a conversion function to be applied to
feedback 1.
[0] Linear
has no effect on the feedback.
[1] Square root
is commonly used when a pressure sensor is used
to provide flow feedback (
( flow ∝ pressure)
).
Option:
Function:
[0]
*
Linear
[1]
Square root
20-02 Feedback 1 Source Unit
Option:
Function:
NOTICE
This parameter is only available when
using pressure to temperature feedback
conversion.
If option
[0] Linear
is selected in
parameter 20-01 Feedback 1 Conversion
, the
setting of any option in
parameter 20-02 Feedback 1 Source Unit
does not matter as a conversion is 1-to-1.
This parameter determines the unit that is used
for this feedback source, before applying the
feedback conversion of
parameter 20-01 Feedback
1 Conversion
. This unit is not used by the PID
controller.
[0]
[1]
%
[5]
PPM
[10]
1/min
[11]
RPM
[12]
Pulse/s
[20]
l/s
[21]
l/min
[22]
l/h
[23]
m³/s
[24]
m³/min
[25]
m³/h
[30]
kg/s
[31]
kg/min
[32]
kg/h
[33]
t/min
[34]
t/h
[40]
m/s
[41]
m/min
[45]
m
[60]
°C
[70]
mbar
[71]
bar
[72]
Pa
[73]
kPa
[74]
m WG
[75]
mm Hg
Parameter Description
VLT
®
AQUA Drive FC 202
160
Danfoss A/S © 05/2018 All rights reserved.
MG20OB02
3
3
Summary of Contents for VLT AQUA Drive FC 202
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