Danfoss VLT AutomationDrive FC 302 Programming Manual page 68

Parameter Descriptions
3-13 Reference Site
Option:
[0] Linked to
Hand / Auto
3 3
[1] Remote
[2] Local
3-14 Preset Relative Reference
Range:
0 % [-100 -
*
100 %]
Illustration 3.22 Preset Relative Reference
-100
Illustration 3.23 Actual Reference
3-15 Reference Resource 1
Option:
66
VLT
Function:
Select which reference site to activate.
Use local reference when in Hand mode; or
remote reference when in Auto mode.
Use remote reference in both Hand mode and
Auto mode.
Use local reference in both Hand mode and
Auto mode.
NOTICE
When set to [2] Local, the frequency
converter starts with this setting again
following a 'power down'.
Function:
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
3-15 Reference 1 Source, 3-16 Reference 2 Source,
3-17 Reference 3 Source and 8-02 Control Source.
Y
Resulting
Relative Z
actual
X
Z=X+X*Y/100
reference
Z
X
0
P 3-14
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
®
AutomationDrive FC 301/302 Programming Guide
3-15 Reference Resource 1
Option:
[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
[21] Analog input
X30-11
[22] Analog input
X30-12
[29] Analog Input
X48/2
3-16 Reference Resource 2
Option:
[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
[21] Analog input
X30-11
Y
[22] Analog input
100 %
X30-12
[29] Analog Input X48/2
3-17 Reference Resource 3
Option:
[0] No function
MG33MI02 - Rev. 2013-11-20
Function:
signals. The sum of these reference
signals defines the actual reference.
(General Purpose I/O Option Module)
(General Purpose I/O Option Module)
Function:
Select the reference input to be used
for the second 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.
Function:
Select the reference input to be used
for the third 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.