Danfoss VLT Decentral FCD 300, Operating Instructions Manual

Page: 65 / 112

413 Overmodulation function
Value:
Off (off) [0]
On (on) [1]
Function:
This parameter allows connection of the overmodulation function for the
output voltage.
Description of choice:
Off
[0] means that there is no overmodulation of the output voltage,
which means that torque ripple on the motor shaft is avoided. This can
be a good feature, e.g. on grinding machines.
On
[1] means that an out-
put voltage can be obtained which is greater than the mains voltage (up
to 5 %).
414 Minimum feedback, FB
MIN
Value:
-100,000.000 - par. 415 FB
MAX
0.000
Function:
Parameter 414
Minimum feedback, FB
MIN
and 415
Maximum feedback,
FB
MAX
are used to scale the display text to make it show the feedback
signal in a process unit proportionally to the signal on the input.
Description of choice:
Set the value to be shown on the display as the minimum feedback signal
value on the selected feedback input (parameters 308/314
Analogue in-
puts ).
415 Maximum feedback, FB
MAX
Value:
FB
MIN
- 100,000.000
1500.000
Function:
See description of parameter 414 Minimum feedback, FB
MIN
.
Description of choice:
Set the value to be shown on the display when the maximum feedback
has been obtained on the selected feedback input (parameter 308/314
Analogue inputs
).
416 Process units
Value:
No unit (No unit) [0]
% (%) [1]
ppm (ppm) [2]
rpm (rpm) [3]
bar (bar) [4]
Cycles/min (CYCLE/MI) [5]
Pulses/s (PULSE/S) [6]
Units/s (UNITS/S) [7]
Units/min. (UNITS/MI) [8]
Units/h (Units/h) [9]
°C (°C) [10]
Pa (pa) [11]
l/s (l/s) [12]
m 3 /s (m3/s) [13]
l/min. (l/m) [14]
m 3 /min. (m3/min) [15]
l/h (l/h) [16]
m
3
/h (m3/h) [17]
Kg/s (kg/s) [18]
Kg/min. (kg/min) [19]
Kg/hour (kg/h) [20]
Tons/min. (T/min) [21]
Tons/hour (T/h) [22]
Metres (m) [23]
Nm (nm) [24]
m/s (m/s) [25]
m/min. (m/min) [26]
°F (°F) [27]
In wg (in wg) [28]
gal/s (gal/s) [29]
Ft 3 /s (ft3/s) [30]
Gal/min. (gal/min) [31]
Ft 3 /min. (Ft3/min) [32]
Gal/h (gal/h) [33]
Ft 3 /h (Ft3/h) [34]
Lb/s (lb/s) [35]
Lb/min. (lb/min) [36]
Lb/hour (lb/h) [37]
Lb ft (lb ft) [38]
Ft/s (ft/s) [39]
Ft/min. (ft/min) [40]
Psi (Psi) [41]
Function:
Select among different units to be shown on the display. The unit is read
out if an LCP control unit can be connected, and if
Reference [unit] [2]
or Feedback [unit] [3] has been selected in one of parameters 009-012
Display read-out
, and in Display mode. The unit is used in
Closed loop
also as a unit for Minimum/Maximum reference and Minimum/Maximum
feedback.
Description of choice:
Select the required unit for the reference/feedback signal.
3 Programming VLT® Decentral FCD
62
MG.04.B8.02 - VLT is a registered Danfoss trademark
3