Danfoss VLT AutomationDrive FC 300 Design Manual page 155

FC 300 Design Guide
Function:
The Maximum reference is the highest value
obtained by the sum of all references. The unit
follows the choice of configuration in par. 1-00.
Speed control, closed loop: RPM
Torque control, speed feedback: Nm
3-1* References
"
3-10 Preset Reference
Array [8]
Range:
-100.00 - 100.00 %
Function:
Eight different preset references (0-7) can be
programmed via array programming. The preset
reference is stated as a percentage of the value
Maximum Reference (par. 3-03) or as a percentage
of the other external references. If a Minimum
Reference 0 (Par. 3-02) is programmed, the
preset reference as a percentage is calculated
on the basis of the difference between Maximum
Reference and Minimum Reference. Afterwards,
the value is added to Minimum Reference. Select
Preset ref enable on the matching digital inputs
when using preset references.
3-12 Catch up/slow-down Value
Range:
0.00 - 100.00%
Function:
Enables entering a percentage value (relative)
which is either added to or deducted from the
actual reference. If Catch up is selected via one
of the digital inputs (par. 5-10 to par. 5-15),
the percentage (relative) value is added to
the total reference. If Slow down is selected
via one of the digital inputs (par. 5-10 to
par. 5-15), the percentage (relative) value is
deducted from the total reference.
3-13 Reference Site
Option:
*
Linked to Hand / Auto
Remote
Local
* default setting ( )
How to Program
*
0.00%
*
0.00%
[0]
[1]
[2]
display text [ ] value for use in communication via serial communication port
MG.33.B3.22 - VLT is a registered Danfoss trademark
Function:
Decides which resulting reference is active. If
Linked to Hand / Auto [0] is selected, the resulting
reference depends on whether the drive is in Hand
or Auto mode. In Hand mode the local reference
is used, and in Auto mode the remote reference is
used. Select Remote [1] to use the remote reference
in both Hand mode and Auto mode. Select Local [2]
to use the local reference in both Hand mode and
Auto mode (par. 3-14) Preset Relative Reference.
3-14 Preset Relative Reference
Range:
-100.00 - 10000.00 %
Function:
Defines a fixed value (in %) added to the
variable value (defined in par. 3-18 and called
Y in the illustration below). This sum (Y) is
multiplied with the actual reference (called X in
the illustration below) and the result is added
to the actual reference (X+X*Y/100).
3-15 Reference Resource 1
Option:
No function
*
Analog input 53
Analog input 54
Frequency input 29
Frequency input 33
Local bus reference
Digital pot.meter
Function:
Adding up to three different reference signals
to compose the actual reference.
Defines what reference input should be treated as
the source of the first reference signal.
Par. 3-15 cannot be adjusted while the
motor is running.
*
0.00%
[0]
[1]
[2]
[7]
[8]
[11]
[20]
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