![background image](http://html1.mh-extra.com/html/danfoss/vlt-series/vlt-series_programming-manual_3460644129.webp)
3.18 Main Menu - FC Closed Loop - Group 20
This meter group is used for configuring the closed loop PID Controller, that controls the output frequency of the frequency
converter.
3.18.1 20-0* Feedback
This meter group is used to configure the feedback signal for the frequency converter’s closed loop PID Controller. Whether
the frequency converter is in Closed Loop Mode or Open Loop Mode, the feedback signals can also be shown on the
frequency converter’s display, be used to control a frequency converter analog output, and be transmitted over various
serial communication protocols.
Setpoint 1
P 20-21
Setpoint 2
P 20-22
Setpoint 3
P 20-23
Feedback 1 Source
P 20-00
Feedback 2 Source
P 20-03
Feedback 3 Source
P 20-06
Feedback conv.
P 20-01
Feedback conv.
P 20-04
Feedback conv.
P 20-07
Feedback 1
Feedback 2
Feedback 3
Feedback
Feedback Function
P 20-20
Multi setpoint min.
Multi setpoint max.
Feedback 1 only
Feedback 2 only
Feedback 3 only
Sum (1+2+3)
Difference (1-2)
Average (1+2+3)
Minimum (1|2|3)
Maximum (1|2|3)
Setpoint to
Reference
Handling
0%
0%
0%
0%
130BA354.12
Parameter Description
VLT
®
HVAC Drive Programming Guide
128
MG.11.CC.02 - VLT
®
is a registered Danfoss trademark
3
3