Description Of Parameters; Basic Parameters - Danfoss Vacon NXP Applications Manual

Description of parameters

5. Description of parameters
5.1

Basic parameters

2.1.1 Grid Nominal Voltage
This parameter sets the incoming line voltage for the regenerative drive. Set this
parameter to the nominal line voltage at the installation site. Used also as a reference
point for grid voltage protection functions. Use G2.2.8 Voltage Correction for static
voltage correction.
When transformer parameters are given, this parameter will be voltage reference of grid
when operating in Island and uGrid modes. When transformer rating is different than 1:1
System Rated DC parameter must be given so that AFE operation will work correctly and
MCB is closed at correct voltage level.
2.1.2 Grid Nominal Frequency
Micro Grid and Island mode frequency set point. In Micro Grid mode used as a reference
point for the Base Current reference and drooping. In AFE mode used as a reference
point for frequency protection functions. Use G2.11 FreqDroopOffset for static frequency
adjustment.
Freq.
52,0 Hz
51,5 Hz
51,0 Hz
50,5 Hz
50,0 Hz
49,5 Hz
49,0 Hz
48,5 Hz
48,0 Hz
2.1.3 System Rated Current A
The rated current capacity of the supply or the transformer. It can be necessary to set it
if AFE is overdesigned compared to the supply or feeding transformer capacity.
The active current and the reactive current are scaled to this parameter as is the current
cutter level.
24-hour support: +358 (0)201 212 575 • Email: vacon@vacon.com
V ID110
Hz
Change
+4%
+3%
+2%
+1
%
25%
-1%
-2%
-3%
-4%
Figure 10.
ID113
ID1532
50% 75% 100%
vacon · 57
Related
Load
5