Danfoss VLT HVAC Series

21-14 Ext. 1 Feedback Source
Option: Function:
This parameter defines which input on the adjustable frequency drive should be treated as the
source of the feedback signal for the closed-loop 1 controller. Analog input X30/11 and Analog input
X30/12 refer to inputs on the General Purpose I/O .
[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
21-15 Ext. 1 Setpoint
Range: Function:
0.000 Ex-
tPID1Unit*
[par. 21-11 - par. 21-12 Ex-
tPID1Unit]
The setpoint reference is used in extended 1 closed-loop. Ext.1 Setpoint is added to the value from
the Ext.1 Reference source selected in par.21-13
Ext. 1 Reference Source .
21-17 Ext. 1 Reference [Unit]
Range: Function:
0.000 Ex-
tPID1Unit*
[-999999.999 - 999999.999 Ex-
tPID1Unit]
Readout of the reference value for the closed-loop 1 controller.
21-18 Ext. 1 Feedback [Unit]
Range: Function:
0.000 Ex-
tPID1Unit*
[-999999.999 - 999999.999 Ex-
tPID1Unit]
Readout of the feedback value for the closed-loop 1 controller.
21-19 Ext. 1 Output [%]
Range: Function:
0 %* [0 - 100 %] Readout of the output value for the closed-loop 1 controller.
3.19.4 21-2* Closed-loop 1 PID
Configure the closed-loop 1 PID controller.
21-20 Ext. 1 Normal/Inverse Control
Option: Function:
[0] * Normal Select Normal [0] if the output should be reduced when feedback is higher than the reference.
[1] Inverse Select
Inverse [1] if the output should be increased when feedback is higher than the reference.
VLT
®
HVAC Drive Programming Guide 3 Parameter Description
MG.11.C6.22 - VLT
®
is a registered Danfoss trademark 3-187
3