ABB V-Contact VSC Series User Manual

30
5.7. Description of the closing and
opening operations
The contactor drive operates in two different ways as shown
in Table 1.
FortheDCOversion,furtherpersonalisationoftheapparatus
can be made. In fact – the first of its kind – the V-Contact
VSCcontactorisfitted(onrequest)withanundervoltage
function(UV)withdelayswhichcanbesetaccordingtothe
requirements of the installation.
For a more detailed description of the behaviour of the
apparatusaccordingtotheversion,seetable2.
Supply the contactor with auxiliary voltage and operate it several
times electrically. The contactor must carry out the opening and
closing operations correctly in accordance with the threshold
values defined in the IEC 62271-106 Standards.
TABLE 1
Version Description Inputs
Closing
-XDB10-7,-XDB10-8
Opening
-XDB10-9,-XDB10-10
Undervoltage
-XDB10-11,-XDB10-12
SCO
(SingleCommand
Operated)
This version operates according to the state of the
command signal at terminals -XDB10-11 and -XDB10-12.
Contactor closing takes place when the voltage applied
to terminals -XDB10-11 and -XDB10-12 corresponds with
the values indicated in Table 2a
Not used Not used Used
DCO(
1
)
(DoubleCommand
Operated)
This version operates by means of two independent signals
for closing and opening applied to terminals -XDB10-7 and
-XDB10-8 for opening and -XDB10-9 and -XDB10-10 for
closing. The values of the signals are indicated in Table 2b.
Furthermore,onrequest,automaticdelayedopeningofthe
contactor is available in the case of a drop or lack of voltage at
terminals-XDB10-11and-XDB10-12(configurabledelayfilter).
See Table 2b.
Used Used If the undervoltage
function
isrequired(
2
)
(1)The contactor is restarted if the supply voltage of the board drops below 18V for more than 300ms.
(2)The undervoltage with time-delay function is guaranteed with 18V minimum residual voltage.
TABLE 2a
SCO (Single Command Operated) version
Terminals -XDB10-1 and -XDB10-2 must always be supplied at the rated voltage (tolerance: 85% … 110%)
Closing operation Power supply, in continuous mode, to the UV input
Opening
operation(
3
)
Release voltage
(dropout)
A voltage drop occurs at terminals -XDB10-11 and -XDB10-12 for power supply voltage values between
75%and10%oftheratedvoltage.
TABLE 2b
DCO (Double Command Operated) version
Terminals -XDB10-1 and -XDB10-2 must always be supplied at the rated voltage (tolerance: 85% … 110%)
Closing operation Supply terminals -XDB10-7 and -XDB10-8 with power. An impulse lasting at least 100 ms is
recommended. Note: an impulse lasting a shorter time may also cause contactor closing.
Opening
operation
Opening operation
(switching)
Supply terminals -XDB10-9 and -XDB10-10 with power. An impulse lasting at least 100 ms is
recommended.
Note: an impulse lasting a shorter time may also cause contactor closing. In the case of simultaneous
powersupplyofterminals-XDB10-7and-XDB10-8andterminals-XDB10-9and-XDB10-10,theopening
command prevails.
Release voltage
(undervoltage)
–Functionavailableonrequest(UV=Undervoltage).
–Openingtakesplaceforvoltagevaluesappliedtoterminals-XDB10-11and-XDB10-12,between70%
and35%oftheratedvoltage(
4
)
(3)Theopeningoperationisonlyinstantaneous.
(4)Theopeningoperationcanbeinstantaneousordelayed(adjustingthedailybymeansofthespecialselectors)a0.3-1-2-3-4-5s.Itissetto0sbydefault.
Setting for DCO
UVtime(s) S1-3 S1-4 S1-5
Instantaneous
(
1
)
0 0 0
0.3s 0 0 1
1s 0 1 0
2s 0 1 1
3s 1 0 0
4s 1 0 1
5s 1 1 1
S1-6 Reserved–(1)Seeopeningtimepar.1.3.
NEPSI.COM - Northeast Power Systems. Inc.

ABB V-Contact VSC Series Specifications

General

Brand	ABB
Model	V-Contact VSC Series
Category	Industrial Electrical
Language	English