3.5 Parameters: 3-** Main Menu -
Reference/Ramps
3.5.1 3-0* Reference Limits
Parameters for setting the reference unit, limits, and
ranges.
See also parameter group 20-0* FC Closed Loop for
information on settings in closed loop.
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. The minimum reference
value and unit match the configu-
ration made in
parameter 1-00 Configuration Mode
and
20-12 Reference/Feedback Unit
.
NOTICE
This parameter is used in
open loop only.
3-03 Maximum Reference
Range:
Function:
Size
related
*
[ par. 3-02 -
999999.999
ReferenceFeed-
backUnit]
Enter the maximum reference. The
maximum reference is the highest
value obtainable by summing all
references.
The maximum reference unit
matches:
•
The configuration selected
in
1-00 Configuration
Mode
: for
[1] Speed closed
loop
, RPM; for
[2] Torque
,
Nm.
•
The unit selected in
3-00 Reference Range
.
3-04 Reference Function
Option:
Function:
[0] Sum
Sums both external and preset reference
sources.
[1] External/
Preset
Use either the preset or the external reference
source.
Shift between external and preset via a
command on a digital input.
3.5.2 3-1* References
Select the preset reference(s). Select
Preset ref. bit 0/1/2
[16], [17] or [18]
for the corresponding digital inputs in
parameter group
5-1* Digital Inputs
.
3-10 Preset Reference
Array [8]
Range:
Function:
0
%
*
[-100 -
100 %]
Enter up to 8 different preset references (0-7) in
this parameter, using array programming. The
preset reference is stated as a percentage of the
value Ref
MAX
(
3-03 Maximum Reference
, for closed
loop see
parameter 20-14 Maximum Reference/
). When using preset references, select
Preset ref. bit 0/1/2 [16], [17] or [18] for the
corresponding digital inputs in parameter group
5-1* Digital Inputs
.
[P 5-13=Preset ref. bit 0]
Preset
[P 5-14=Preset ref. bit 1]
[P 5-15=Preset ref. bit 2]
10101010
76543210
29
12 (+24V)
11001100
32
11110000
33
130BA149.10
Illustration 3.16 Preset Reference Scheme
Parameter Descriptions
VLT
®
HVAC Drive FC 102
58
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MG11CE02
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