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3.5 Parameters: 3-** Reference/Ramps
Parameters for reference handling, definition of limitations,
and configuration of the reaction of the frequency
converter to changes.
3.5.1 3-0* Reference Limits
3-00 Reference Range
Option:
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
[1] Speed
closed loop
control or
[3] Process
is selected in
[0]
Min -
Max
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
[1] Speed
closed loop
control or
[3] Process
is selected in
[1]
*
-Max -
+Max
For both positive and negative values (both
directions, relative to
).
3-01 Reference/Feedback Unit
Option:
Function:
Select the unit to be used in Process PID Control
references and feedbacks.
must be either
[3] Process
or
[8] Extended
PID Control
.
[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
[41]
m/min
[45]
m
[60]
°C
3-01 Reference/Feedback Unit
Option:
Function:
[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:
Function:
Size
related
*
[ -999999.999 -
par. 3-03
ReferenceFeed-
backUnit]
Enter the Minimum Reference. The
Minimum Reference is the lowest
value obtainable by summing all
references.
Minimum Reference is active only
when
is set to
[0] Min.- Max.
The Minimum Reference unit
matches:
•
The choice of configu-
ration in
1-00 Configuration Mode
Configuration Mode
: for
[1]
Speed closed loop
, RPM; for
[2] Torque
, Nm.
•
The unit selected in
.
Parameter Descriptions
VLT
®
AutomationDrive Programmming Guide
56
MG33ME02 - VLT
®
is a registered Danfoss trademark
3
3
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