3-12 Catch Up/Slow Down Value
Range:
Function:
0%
*
[0-100%] The
Catch-up/Slowdown function
is activated by
an input command (see
5-1* Digital Inputs
,
choice [28]/[29]). If the command is active, the
Catch-up/Slowdown value (in %) is added to
the reference function as follows:
Reference = Reference + Reference
× Catchup Slowdown
100
Reference = Reference − Reference
× Catchup Slowdown
100
When the input command is inactivated, the
reference returns to its original value ie.
Reference=Ref 0.
3-14 Preset Relative Reference
Range:
Function:
0.00% [-100.00-100.00%] Define fixed value in % to be added
to variable value defined in
3-18
Relative Scaling Reference Source
.
The sum of fixed and variable values
(labeled Y in illustration below) is
multiplied with actual reference
(labeled X in illustration). This
product is added to actual reference
X + X × Y
100
Relative
Z=X+X*Y/100
Resulting
actual
reference
Y
X
130BA059.12
Z
Illustration 4.5
3-15 Reference 1 Source
Option:
Function:
3-15 Reference 1 Source
,
3-16 Reference 2
Source
and
3-17 Reference 3 Source
define
up to three different reference signals.
The sum of these reference signals defines
the actual reference.
[0]
No Function
No reference signal is defined.
[1]
*
Analog Input
53
Use signals from analog input 53 as
reference, see parameter group
6-1*
Analog Input 1
.
[2]
Analog Input
60
Use signals from analog input 60 as
reference, see parameter group
6-2*
Analog Input 2
.
[8]
Pulse input 33
Use signals from pulse input as reference,
see parameter group
5-5* Pulse Input
.
[11] Local Bus
Reference
Use signals from local bus as reference,
see parameter group
8-9* Bus Feedback
.
[21] LCP Potenti-
ometer
Use signals from LCP potentiometer as
reference, parameter group
6-8* LCP
Potentiometer
.
3-16 Reference 2 Source
Option:
Function:
See
3-15 Reference 1 Source
for
description.
[0]
No Function
No reference signal is defined.
[1]
Analog Input 53
Use signals from analog input 53 as
reference.
[2]
*
Analog Input 60
Use signals from analog input 60 as
reference.
[8]
Pulse input 33
Use signals from pulse input as
reference, see parameter group
5-5*
Pulse Input
.
[11] Local Bus
Reference
Use signals from local bus as
reference.
[21] LCP Potentiometer Use signals from LCP potentiometer as
reference.
3-17 Reference 3 Source
Option:
Function:
See
3-15 Reference 2 Source
for
description.
[0]
No Function
No reference signal is defined.
[1]
Analog Input 53
Use signals from analog input 53 as
reference.
[2]
Analog Input 60
Use signals from analog input 60 as
reference.
[8]
Pulse input 33
Use signals from pulse input as
reference, see parameter group
5-5*
Pulse Input
.
[11]
*
Local Bus
Reference
Use signals from local bus as
reference.
[21]
LCP Potentiometer Use signals from LCP potentiometer
as reference.
3-18 Relative Scaling Reference Source
Option:
Function:
Select the source for a variable value to
be added to the fixed value defined in
3-14 Preset Relative Reference
.
[0]
*
No Function
The function is disabled
[1]
Analog Input 53
Select analog input 53 as relative
scaling reference source.
[2]
Analog Input 60
Select analog input 60 as relative
scaling reference source.
[8]
Pulse Input 33
Select pulse input 33 as relative scaling
reference source.
[11] Local Bus
Reference
Select local bus ref. as relative scaling
reference source.
[21] LCP Potentiometer Select LCP potentiometer as relative
scaling reference source.
Parameter Descriptions
VLT
®
Micro Drive FC 51 Programming Guide
22
MG02C602 - VLT
®
is a registered Danfoss trademark
4
4