20-04 Feedback 2 Conversion
Option:
Function:
for details.
[0] *
Linear
[1]
Square root
[2]
Pressure to temperature
20-06 Feedback 3 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
20-07 Feedback 3 Conversion
Option:
Function:
for details.
[0] *
Linear
[1]
Square root
[2]
Pressure to temperature
20-20 Feedback Function
Option:
Function:
This parameter determines how the three possible feedbacks will be used to control the output
frequency of the adjustable frequency drive.
[0]
Sum
Sum
[0] sets up the PID controller to use the sum of Feedback 1, Feedback 2 and Feedback 3 as
the feedback.
NOTE!
Any unused feedbacks must be set to
No Function
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 setpoint reference.
VLT
®
HVAC Drive Instruction Manual
6 How to program the adjustable frequency
drive
MG.11.A9.22 - VLT
®
is a registered Danfoss trademark
6-45
6
