Reference Limits; Reference Range; Reference/Feedback Unit; Minimum Reference - Danfoss VLT AutomationDrive Programming Manual

Parameter Descriptions

3.5 Parameters: 3-** Reference / Ramps

Parameters for reference handling, definition of limitations,
and configuration of the reaction of the Adjustable
3 3
frequency drive to changes.

3.5.1 3-0* Reference Limits

3-00 Reference Range

Option:
[0] Min -
Max
[1] -Max -
*
+Max

3-01 Reference/Feedback Unit

Option:
[0] None
*
[1] %
[2] RPM
[3] Hz
[4] Nm
[5] PPM
[10] 1/min
[12] Pulse/s
[20] l/s
[21] l/min
[22] l/h
[23] m³/s
[24] m³/min
[25] m³/h
[30] kg/s
[31] kg/min
[32] kg/h
[33] t/min
[34] t/h
[40] m/s
3-34
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FC 300 Programming Guide
Function:
Select the range of the reference signal and the
feedback signal. Signal values can be positive
only, or positive and negative. The minimum
limit may have a negative value, unless Speed
closed-loop [1] control or Process [3] is selected in
1-00 Configuration Mode.
Select the range of the reference signal and the
feedback signal. Signal values can be positive
only, or positive and negative. The minimum
limit may have a negative value, unless Speed
closed-loop [1] control or Process [3] is selected in
1-00 Configuration Mode.
For both positive and negative values (both
directions, relative to 4-10 Motor Speed Direction).
Function:
Select the unit to be used in process PID control
references and feedback. 1-00 Configuration Mode
must be either [3] Process or [8] Extended PID
Control.
MG33MD22 - VLT
3-01 Reference/Feedback Unit
Option: Function:
[41] m/min
[45] m
[60] °C
[70] mbar
[71] bar
[72] Pa
[73] kPa
[74] m WG
[80] kW
[120] GPM
[121] gal/s
[122] gal/min
[123] gal/h
[124] CFM
[125] ft³/s
[126] ft³/min
[127] ft³/h
[130] lb/s
[131] lb/min
[132] lb/h
[140] ft/s
[141] ft/min
[145] ft
[150] lb ft
[160] °F
[170] psi
[171] lb/in²
[172] in WG
[173] ft WG
[180] HP

3-02 Minimum Reference

Range:
Application
dependent [Application
*
dependant]
®
is a registered Danfoss trademark
Function:
Enter the Minimum Reference. The
Minimum Reference is the lowest
value obtainable by summing all
references.
Minimum Reference is active only
when 3-00 Reference Range is set to
Min.- Max. [0].
The minimum reference unit
matches:
•
The choice of configuration
in 1-00 Configuration Mode
Configuration Mode: for