20-06 Feedback 3 Source
Option: Function:
See par. 20-00
Feedback 1 Source
for details.
20-07 Feedback 3 Conversion
Option: Function:
See par. 20-01
Feedback 1 Conversion
for details.
[0] * Linear
[1] Square root
[2] Pressure to temperature
[3]
[4]
20-08 Feedback 3 Source Unit
Option: Function:
See par. 20-02
Feedback 1 Source Unit
for details.
20-12 Reference/Feedback Unit
Option: Function:
See par. 20-02
Feedback 1 Source Unit
for details.
20-13 Minimum Reference/Feedb.
Range: Function:
0.000 Proc-
essCtrlU-
nit*
[Application dependant] Enter the desired minimum value for the remote reference when operating with par. 1-00
Config-
uration Mode
set for Closed-loop [3] operation. Units are set in par. 20-12
Reference/Feedback
Unit
.
Minimum feedback will be -200% of either the value set in par. 20-13
Minimum Reference/Feedb.
or in par. 20-14
Maximum Reference/Feedb.
, which ever numeric value is the highest.
NOTE!
If operating with par. 1-00
Configuration Mode
set for Open-loop [0], par. 3-02
Minimum Reference
must be used.
20-14 Maximum Reference/Feedb.
Range: Function:
100.000
ProcessCtr-
lUnit*
[Application dependant] Enter the maximum reference/feedback for closed-loop operation. The setting determines the high-
est value obtainable by summing all reference sources for closed-loop operation. The setting
determines 100% feedback in open-loop and closed-loop (total feedback range: -200% to +200%).
NOTE!
If operating with par. 1-00
Configuration Mode
set for Open-loop [0], par. 3-03
Maximum Reference
must be used.
NOTE!
The dynamics of the PID controller will depend on the value set in this parameter. Please see also par. 20-93
PID Proportional Gain
.
Par. 20-13 and par. 20-14 also determine the feedback range when using feedback for display readout with par. 1-00
Configuration
Mode
set for Open-loop [0]. Same condition as above.
7 How to Program the Adjustable Frequency
Drive
VLT
®
HVAC Drive Instruction Manual
7-36
MG.11.AB.22 - VLT
®
is a registered Danfoss trademark
7
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