Additional Settings - ABB DCS800 Installation And Start-Up Manual
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Also See for DCS800:
- Service manual (158 pages) ,
- Hardware manual (134 pages) ,
- Installation manual (70 pages)
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If the ratio of the current transformer is different to 2500:1 or 4000:1
Calculate the total burden resistance R
=
R
br
Calculate the resistors to be cut off within R1 to R21 according to the next formula.
The resulting resistance R
tance R
will be higher than the current the calculation was based on (keep the coding and
use the recalculated current at parameter S ConvScaleCur (97.02)):
1
=
R
br
Additional settings
The following settings will be done by software parameters:
Converter
type code
nominal current
nominal voltage
power stack
temperature
monitoring
2-Q or 4-Q mode
1
5 ,
V
with:
*
roct
I
dN
should be as close as possible to the burden resis-
r
. If the resulting resistance R
br
1
1
1
1
+
+
+
+
R
1
R
2
R
3
R
4
Parameter
TypeCode
S ConvScaleCur
S ConvScaleVolt
S MaxBrdgTemp
S BlockBridge2
3ADW000197R0101 DCS800-R Sel e a
:
br
I
=
nominal current of power part
dN
roct =
ratio of current transformer
is smaller than R
r
1
+
.....
Rn
Parameter
no.
(97.01)
(97.02)
(97.03)
(97.04)
(97.07)
, the nominal current I
br
Settings
Remarks
NONE
xxxxx (A)
as coded
xxx (V)
as coded
60 (°C)
1
at 2-Q power part
2
at 4-Q power part
Hardware
25
(R
)
dN
r
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