Danfoss VLT Midi Drive FC 280, Programming Manual

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3-10 Preset Reference
Range: Function:
0 %
*
[-100 -
100 %] Enter up to 8 different preset references (0–7)
in this parameter, using array programming. For
selecting dedicated references, select
preset
reference bit 0/1/2 [16], [17], or [18] for the
corresponding digital inputs in parameter
group
5-1* Digital Inputs .
3-11 Jog Speed [Hz]
Range: Function:
5 Hz
*
[ 0 - 400.0
Hz] The jog speed is a fixed output speed at
which the frequency converter runs when
the jog function is activated. See also
parameter 3-80 Jog Ramp Time
.
3-12 Catch up/slow Down Value
Range: Function:
0 %
*
[0 -
100 %] Enter a percentage value to be either added to or
deducted from the actual reference for catching
up or slowing down respectively. If
[28] Catch up is
selected via 1 of the digital inputs
(
parameter 5-10 Terminal 18 Digital Input to
parameter 5-15 Terminal 33 Digital Input ), the
percentage value is added to the total reference. If
[29] Slow down is selected via 1 of the digital
inputs ( parameter 5-10 Terminal 18 Digital Input to
parameter 5-15 Terminal 33 Digital Input ), the
percentage value is deducted from the total
reference.
3-14 Preset Relative Reference
Range: Function:
0 %
*
[-100 -
100 %] The actual reference, X, is increased or decreased
with the percentage Y, set in
parameter 3-14 Preset Relative Reference . This
results in the actual reference Z. Actual reference
(X) is the sum of the inputs selected in
parameter 3-15 Reference 1 Source ,
parameter 3-16 Reference 2 Source ,
parameter 3-17 Reference 3 Source , and
parameter 8-02 Control Source .
Relative
Z=X+X*Y/100
Resulting
actual
reference
Y
X
130BA059.12
Z
Illustration 4.3 Preset Relative Reference
X
100 % 0 -100
Z
Y
X+X*Y/100
P 3-14
130BA278.10
Illustration 4.4 Actual Reference
3-15 Reference 1 Source
Option: Function:
Select the reference input to be used
for the first reference signal.
Parameter 3-15 Reference 1 Source ,
parameter 3-16 Reference 2 Source , and
parameter 3-17 Reference 3 Source define
up to 3 different reference signals. The
sum of these reference signals defines
the actual reference.
[0] No function
[1]
*
Analog Input 53
[2] Analog Input 54
[7] Frequency input
29
[8] Frequency input
33
[11] Local bus
reference
[20] Digital pot.meter
[32] Bus PCD
3-16 Reference 2 Source
Option: Function:
Select the reference input to be used
for the first reference signal.
Parameter 3-15 Reference 1 Source ,
parameter 3-16 Reference 2 Source , and
parameter 3-17 Reference 3 Source define
up to 3 different reference signals. The
sum of these reference signals defines
the actual reference.
[0] No function
[1] Analog Input 53
[2]
*
Analog Input 54
[7] Frequency input
29
[8] Frequency input
33
[11] Local bus
reference
Parameter Descriptions Programming Guide
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