Danfoss VLT AutomationDrive FC 301 Programming Manual page 91

Parameter Descriptions
3-10 Preset Reference
Array [8]
Range: 0-7
Range: Function:
references, select preset reference
bit 0/1/2 [16], [17] or [18] for the
corresponding digital inputs in
parameter group 5-1* Digital Inputs.
12 (+24V)
Preset 76543210
29 [P 5-13=Preset ref. bit 0]
10101010
32
11001100 [P 5-14=Preset ref. bit 1]
11110000 33 [P 5-15=Preset ref. bit 2]
Illustration 3.21 Preset Reference
Preset ref. bit
Preset ref. 0
Preset ref. 1
Preset ref. 2
Preset ref. 3
Preset ref. 4
Preset ref. 5
Preset ref. 6
Preset ref. 7
Table 3.13 Preset Reference Bits
3-11 Jog Speed [Hz]
Range: Function:
Size [ 0 - par. 4-14 The jog speed is a fixed output
related Hz] 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
M0013101
Programming Guide
2 1 0
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
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3-12 Catch up/slow Down Value
Range: Function:
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 Use local reference when in hand-
Hand / Auto 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] Linked to H/A Select this option to enable the
MCO 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
Operating Instructions.
3-14 Preset Relative Reference
Range: Function:
0 % [-200 - The actual reference, X, is increased
*
200 %] 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:
®
Motion Control MCO 305
89
3 3