Danfoss VLT HVAC Drive FC 102 Design Manual page 204

Basic Operating Principles ...
P 3-14
Preset relative ref.
No function
Analog inputs
Frequency inputs
Ext. closed loop outputs
DigiPot
No function
Analog inputs
Frequency inputs
Ext. closed loop outputs
DigiPot
11 11
No function
Analog inputs
Frequency inputs
Ext. closed loop outputs
DigiPot
Bus
reference
Illustration 11.3 Remote Handling of Reference
202
®
VLT HVAC Drive FC 102
Input command:
Preset ref. bit0, bit1, bit2
[0]
[1]
[2]
[3]
[4]
[5]
[6]
P 3-04
[7]
Ref. function

on
±200%
o
Input command:
Ref. Preset

External
reference
in %
Setpoint
From Feedback Handling
Danfoss A/S © 11/2017 All rights reserved.
Input command:
Freeze ref.
Y
Relative

X+X*Y
X
±200%
/100
±200%
±100%
Freeze ref.
&
increase/
decrease
ref.
Input command:
Speed up/ speed down
P 1-00
Con guration mode
Increase
0/1
Decrease
Closed loop
0/1
±200%
Clear
0%
0/1
Open loop
P 1-00
Con guration mode
Open loop
Scale to
RPM,Hz
or %
max ref.
Remote
%
ref.
%
min ref.
Scale to
Closed
loop
unit
Closed loop
Ref. in %
Digipot ref.
DigiPot
±200%
MG16C302