4.4 Parameters: 3-** Reference/Ramps
3-00 Reference Range
Option: Function:
[0] * Min - Max Select the range of the reference signal and
the feedback signal. Signal values can be
positive only, or positive and negative.
[1] -Max -
+Max
For both positive and negative values (both
directions), relative to parameter 4-10 Motor
Speed Direction.
3-01 Reference/Feedback Unit
Option: Function:
Select the unit for process PID control references
and feedbacks.
[0]
[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
[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
3-01 Reference/Feedback Unit
Option: Function:
[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: Function:
0
Reference
Feedback
Unit*
[ 0 - 4999
Reference
Feedback
Unit]
Enter the minimum reference. The
minimum reference is the lowest value
obtainable by summing all references.
The minimum reference is active only
when parameter 3-00 Reference Range is
set to [0] Min.–Max.
The minimum reference unit matches:
•
The option in
parameter 1-00 Conguration
Mode.
•
The unit selected in
parameter 3-01 Reference/
Feedback Unit.
3-03 Maximum Reference
Range: Function:
Size
related*
[-4999.0 - 4999
ReferenceFeed-
backUnit]
Enter the maximum reference. The
maximum reference is the highest
value obtainable by summing all
references.
The maximum reference unit
matches:
•
The option selected in
parameter 1-00 Conguration
Mode.
•
The unit selected in
parameter 3-00 Reference
Range.
3-04 Reference Function
Option: Function:
[0] * Sum Sums both external and preset reference
sources.
[1] External/
Preset
Use either the preset or the external
reference source. Shift between external and
preset via a command or a digital input.
Parameter Descriptions
VLT
®
Midi Drive FC 280
42 Danfoss A/S © 12/2015 All rights reserved. MG07C102
44