Danfoss AKD 5001, Manual

Page: 89 / 124

AKD 5000
Function:
This function makes it possible to increase the
switching frequency at a falling output frequency. Used
in applications with square torque characteristics
(centrifugal pumps and fans) in which the load
declines depending on the output frequency. However,
the maximum switching frequency is determined
by the value set in parameter 411.
Description of choice:
Select Not possible [0] if a permanent switching
frequency is desired.
Set the switching frequency in parameter 411. If
Possible [1] is selected the switching frequency will
decline at an increasing output frequency.
414 Minimum feedback
(MIN. FEEDBACK)
Value:
-100,000.000 - Max. feedback
✭
0.000
Function:
Parameters 414 and 415 are used to scale the display
text to make it show the feedback signal as the actual
unit proportional to the signal on the input. This value
should be 10% higher than, par. 205 Maximum
reference , to keep the frequency converter from
integrating as a response to a possible offset fault.
This value will be displayed if Feedback [unit] [3]
has been selected in one of parameters 009-012
and in the display mode. Choose the feedback
signal unit in parameter 416.
Used together with Speed control, closed loop;
Process control, closed loop and Torque control
speed feedback , (parameter 100).
Description of choice:
Is only active when parameter 203 has been
set to Min-Max [0].
Set the value to be shown on the display when
Minimum feedback is obtained on the selected
feedback input (parameter 308 or 314).
The minimum value can be limited by the choice of
configuration (parameter 100) and reference/feedback
range (parameter 203).
If Speed control, closed loop [1] has been
selected in parameter 100, minimum feedback
cannot be set under 0.
415 Maximum feedback
(MAX. FEEDBACK)
Value:
Min. feedback - 100,000.000 ✭
1,500.000
Function:
See description of parameter 414.
Description of choice:
Set the value to be shown on the display when
Maximum feedback is obtained on the selected
feedback input (parameter 308 or 314) . The
maximum value can be limited by the choice of
configuration (parameter 100).
416 Reference/feedback unit
(REF/FEEDB. UNIT)
Value:
NO UNIT [0]
% [1]
PPM [2]
RPM [3]
✭
bar
[4]
CYCLE/min [5]
PULSE/s [6]
UNITS/s [7]
UNITS/min [8]
UNITS/h
[9]
°C [10]
Pa [11]
l/s [12]
m
3
/s [13]
l/min
[14]
m
3
/min [15]
l/h [16]
m
3
/h [17]
kg/s [18]
kg/min
[19]
kg/h [20]
t/min [21]
t/h [22]
m [23]
N m
[24]
m/s [25]
m/min [26]
°F [27]
in wg [28]
gal/s
[29]
ft
3
/s [30]
gal/min [31]
ft
3
/min [32]
gal/h [33]
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.50.R3.02 -
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