Danfoss VLT FC 102 Operating Instructions Manual page 112

6 How to Programme the Low Harmonic Drive
20-04 Feedback 2 Conversion
Option:
[0] * Linear
[1] Square root
[2] Pressure to temperature
[3] Pressure to flow
[4] Velocity to flow
20-06 Feedback 3 Source
Option:
[0] * No function
[1] Analog input 53
6
[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
20-07 Feedback 3 Conversion
Option:
[0] * Linear
[1] Square root
[2] Pressure to temperature
[3] Pressure to flow
[4] Velocity to flow
20-20 Feedback Function
Option:
[0] Sum
112
Function:
See par. 20-01 Feedback 1 Conversion for details.
Function:
See par. 20-00 Feedback 1 Source for details.
Function:
Feedback 1 Conversion for details.
See par. 20-01
Function:
This parameter determines how the three possible feedbacks will be used to control the output
frequency of the frequency converter.
Sum [0] sets up the PID Controller to use the sum of Feedback 1, Feedback 2 and Feedback 3 as
the feedback.
NB!
Any unused feedbacks must be set to
Source , par. 20-03 Feedback 2 Source , or par. 20-06 Feedback 3 Source .
The sum of Setpoint 1 and any other references that are enabled (see par. group 3-1*) will be used
as the PID Controller's set-point reference.
®
MG.16.A1.02 - VLT is a registered Danfoss trademark
VLT HVAC Low Harmonic Drive Operating In-
No Function in par. 20-00 Feedback 1
structions