20-02 Feedback 1 Source Unit
This parameter determines the unit that is used for this Feedback Source, prior to applying the feedback conversion of
par. 20-01, Feedback 1
Conversion
. This unit is not used by the PID Controller. It is used only for display and monitoring purposes.
Option: Function:
[70] mbar
[71] * bar
[72] Pa
[73] kPa
[74] m WG
[170] psi
[171]
lb/in
2
[172] in WG
[173] ft WG
NB!
This parameter is only available when using Pressure to Temperature Feedback Conversion.
20-12 Reference/Feedback Unit
This parameter determines the unit that is used for the setpoint reference and feedback that the PID Controller will use for controlling the output
frequency of the frequency converter.
Option: Function:
[60] * °C
[160] °F
20-21 Setpoint 1
Range: Function:
0.000 Proc-
essCtrlU-
nit*
[-999999.999 - 999999.999 Proc-
essCtrlUnit]
Setpoint 1 is used in Closed Loop Mode to enter a setpoint reference that is used by the frequency
converter’s PID Controller. See the description of par.20-20
Feedback Function
.
NB!
Setpoint reference entered here is added to any other references that are enabled
(see par. group 3-1*).
20-30 Refrigerant
Select the refrigerant used in the compressor application. This parameter must be specified correctly for the pressure to temperature conversion to
be accurate. If the refrigerant used is not listed in choices [0] through [6], select
User defined
[7]. Then, use par. 20-31, 20-32 and 20-33 to provide
A1, A2 and A3 for the equation below:
Temperature
=
A
2
(
ln
(
Pe
+1
)
−
A
1
)
−
A
3
Option: Function:
[0] * R user
[1] R12
[2] R22
[3] R134a
[4] R502
[5] R717
[6] R13
[7] R13b1
6 How to Programme the Frequency Converter ADAP-KOOL
®
Drive AKD 102 High Power
90
MG.11.O1.02 - ADAP-KOOL
®
is a registered Danfoss trademark
6
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