ABB DCS880 series - Page 74

Electrical installation
74
3ADW000462R0401 DCS880 Hardware manual e d
Example of two DCS880 converters, one as armature converter, the other one as large field exciter.
Example of two DCS880 H5, H6 converters with FEX-425-Int internal field supply.
The connection of isolated GNDB between two or more serial communication interfaces is optional. It
is recommended to connect GNDB if the supply voltage is above 690 V and the cabling is made from
cubicle to cubicle.
X52:
123 321
J1
X53:
GNDB
SDCS-DSL-H1x
X52:
123 3 21
X53:
SDCS-DSL-H1x
SB_880_011_bus_a.ai
J1
GNDB
ON
(J1: )
ON
(J1: )
Bus termination
DCS880 Converter DCS880 Converter
as large field exciter
123 3 21
X53:
SDCS-DSL-H1x
X52:
1123 3 2
SDCS-DSL-H1x
X53:X52:
FEX-425-Int
X3:
GNDB
S1100:1
S1100:3
S1100:2
321
FEX-425-Int
X3:
GNDB
S1100:1
S1100:3
S1100:2
231
SB_880_011_bus_a.ai
J1
GNDB
J1
GNDB
DCS880 H5, H6 Converter DCS880 H5, H6 Converter
ON
(S1100:1 closed)
ON
at the end of the bus
Bus termination
(next converter)
Ground termination NO
(S1100:2 open
S1100:3 open)
NO
(S1100:2 open
S1100:3 open)
OFF
(J1: )
OFF
(J1: )