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3 Parameter Description
20-21 Setpoint 1
Range:
0.000 Proc-
[-999999.999 - 999999.999 Proc-
essCtrlU-
essCtrlUnit]
nit*
3
20-22 Setpoint 2
Range:
0.000 Proc-
[-999999.999 - 999999.999 Proc-
essCtrlU-
essCtrlUnit]
nit*
NOTE!
The setpoint reference entered here is added to any other references that are enabled (see par. group 3-1*).
20-23 Setpoint 3
Range:
0.000 Proc-
[-999999.999 - 999999.999 Proc-
essCtrlU-
essCtrlUnit]
nit*
3.18.4 20-3* Feedback Adv. Conversion
In air conditioning compressor applications it is often useful to control the system based on the temperature of the refrigerant. However, it is generally
more convenient to directly measure its pressure. This parameter group allows the adjustable frequency drive's PID controller to convert refrigerant
pressure measurements into temperature values.
3-176
Function:
Setpoint 1 is used in closed-loop mode to enter a setpoint reference that is used by the adjustable
frequency drive's PID controller. See the description of par.20-20
NOTE!
Setpoint reference entered here is added to any other references that are enabled
(see par. group 3-1*).
Function:
Setpoint 2 is used in closed-loop mode to enter a setpoint reference that may be used by the ad-
justable frequency drive's PID controller. See the description of
Feedback Function
20-20
.
Function:
Setpoint 3 is used in closed-loop mode to enter a setpoint reference that may be used by the ad-
justable frequency drive's PID controller. See the description of par.20-20
NOTE!
The setpoint reference entered here is added to any other references that are
enabled (see par. group 3-1*).
MG.11.C6.22 - VLT
®
is a registered Danfoss trademark
VLT
®
HVAC Drive Programming Guide
Feedback Function
.
Feedback Function
Feedback Function
, par.
.
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