Danfoss VLT HVAC Drive FC 102 Operating Instructions Manual page 87

How to Programme
3-02 Minimum Reference
Range:
Size [ -999999.999 - Enter the minimum reference. The
related par. 3-03 minimum reference is the lowest
*
ReferenceFeed- value obtainable by summing all
backUnit] references. The minimum
reference value and unit match
the configuration made in
parameter 1-00 Configuration Mode
and 20-12 Reference/Feedback Unit.
NOTICE
This parameter is used in
open loop only.
3-04 Reference Function
Option: Function:
[0] Sum Sums both external and preset reference
sources.
[1] External/ Use either the preset or the external reference
Preset source.
Shift between external and preset via a
command on a digital input.
3-10 Preset Reference
Array [8]
Range: Function:
0 % [-100 - Enter up to 8 different preset references (0-7) in
*
100 %] this parameter, using array programming. The
preset reference is stated as a percentage of the
value Ref (3-03 Maximum Reference, for
MAX
closed loop see 20-14 Maximum Reference/
Feedb.). 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.
MG11F502
Operating Instructions
Function:
Danfoss A/S © 08/2014 All rights reserved.
P3-03
P3-02
0 50
Illustration 6.10 Preset Reference
12 (+24V)
Preset 76543210
29
10101010 [P 5-13=Preset ref. bit 0]
11001100 32 [P 5-14=Preset ref. bit 1]
33
11110000 [P 5-15=Preset ref. bit 2]
Illustration 6.11 Preset Reference Scheme
3-15 Reference 1 Source
Option: Function:
NOTICE
This parameter cannot be
adjusted while the motor is
running.
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
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] Pulse input 29
[8] Pulse input 33
6 6
P3-10
100%
85