Danfoss VLT AutomationDrive FC 302, Programming Manual, Page: 80 / 346

Preset ref. bit 2 1 0
Preset ref. 0 0 0 0
Preset ref. 1 0 0 1
Preset ref. 2 0 1 0
Preset ref. 3 0 1 1
Preset ref. 4 1 0 0
Preset ref. 5 1 0 1
Preset ref. 6 1 1 0
Preset ref. 7 1 1 1
Table 3.13 Preset Reference Bits
3-11 Jog Speed [Hz]
Range: Function:
Size
related
*
[ 0 - par.
4-14 Hz] The jog speed is a fixed output speed at
which the frequency converter is
running when the jog function is
activated.
See also
parameter 3-80 Jog/Homing
Ramp Time .
3-12 Catch up/slow Down Value
Range: Function:
0 %
*
[0 -
100 %] Enter a percentage (relative) value to be either
added to or deducted from the actual reference
for catch up or slow down. If
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 (relative) value is
added to the total reference. If 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 (relative) value is deducted from the
total reference. Obtain extended functionality with
the DigiPot function. See
parameter group 3-9*
Digital Potentiometer .
3-13 Reference Site
Option: Function:
Select which reference site to activate.
[0]
*
Linked to
Hand /
Auto Use local reference when in hand-on mode, or
remote reference when in auto-on mode.
[1] Remote Use remote reference in both hand-on mode and
auto-on mode.
[2] Local Use local reference in both hand-on mode and
auto-on mode.
NOTICE
When set to [2] Local , the frequency
converter starts with this setting again
after a power-down.
3-13 Reference Site
Option: Function:
[3] Linked to
H/A MCO Select this option to enable the FFACC factor in
parameter 32-66 Acceleration Feed-Forward .
Enabling FFACC reduces jitter and makes the
transmission from the motion controller to the
control card of the frequency converter faster.
This leads to faster response times for dynamic
applications and position control. For more
information about FFACC, see
VLT
®
Motion
Control MCO 305 Operating Instructions .
3-14 Preset Relative Reference
Range: Function:
0 %
*
[-200
-
200 %] 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 Resource 1 .
•
Parameter 3-16 Reference Resource 2 .
•
Parameter 3-17 Reference Resource 3 .
•
Parameter 8-02 Control Word Source .
Relative
Z=X+X*Y/100
Resulting
actual
reference
Y
X
130BA059.12
Z
Illustration 3.22 Preset Relative Reference
X
100 % 0 -100
Z
Y
X+X*Y/100
P 3-14
130BA278.10
Illustration 3.23 Actual Reference
3-15 Reference Resource 1
Option: Function:
Select the reference input to be used for
the first reference signal.
Parameter 3-15 Reference Resource 1 ,
parameter 3-16 Reference Resource 2 , and
parameter 3-17 Reference Resource 3 define
up to 3 different reference signals. The
sum of these reference signals defines the
actual reference.
Parameter Descriptions
VLT
®
AutomationDrive FC 301/302
78 Danfoss A/S © 10/2018 All rights reserved. MG33MP02
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