Inputs and outputs
Assign the breaker inputs and outputs under
Configure > Input/output
. Select the hardware module, then select the input/output to
configure.
INFO
For a continuous breaker, DEIF recommends installing both of the breaker control relays to ensure precise synchronisation
and AC protection operate times.
Table 5.14
Breaker configuration
Function
I/O
Type
Details
Breakers > [Breaker] >
Control > [*B] close
Digital
output
Continuous
The controller activates the
Close
output to close the breaker. To
open the breaker, the controller deactivates the
Close
output. The
Close
relay ensures precise synchronisation.
Breakers > [Breaker] >
Control > [*B] open
Digital
output
Continuous
The controller activates the
Open
output when the breaker must
open. The controller deactivates the
Open
output when the breaker
must close. The
Open
relay ensures the AC protection operate times.
Breakers > [Breaker] >
Control > [*B] trip
Digital
output
Continuous
The controller activates the
Trip
output when an alarm with a trip
breaker action activates.
The output remains active until all alarms with a trip breaker action
are resolved.
Breakers > [Breaker] >
Feedback > [*B] closed
Digital input
Continuous
Wire this feedback from the breaker to inform the controller when the
breaker is closed.*
Breakers > [Breaker] >
Feedback > [*B] open
Digital input
Continuous
Wire this feedback from the breaker to inform the controller when the
breaker is open.*
Breakers > [Breaker] >
Feedback > [*B] short circuit
Digital input
Continuous
Optional. Wire this feedback from the breaker if a short circuit
occurs.
*Note: There must be at least one breaker feedback.
Parameters
Configure the parameters under
Configure > Parameters > Breakers > [Breaker] configuration > Configuration.
Table 5.15
Parameters for a continuous breaker
Parameter
Range
Default
Notes
Breaker type
•
Pulse breaker
•
Compact breaker
•
Continuous breaker
Pulse
breaker
Continuous breaker:
This breaker receives a continuous signal to close if
[B*] close
, or the
[B*] close
and
[B*] open
functions are configured. If this
signal stops, the breaker opens.
If only the
[B*] open
is configured, the breaker receives a continuous
signal to open. If this signal stops, the breaker synchronises and closes.
Due to class requirements, this breaker type is not suitable for marine use.
This is because the ship would lose power if the controller failed.
Open point
(de-loading)
1.0 to 20.0 % of
nominal power
5 %
The breaker is de-loaded when the power flowing through the breaker is
less than this set point. The nominal power is the nominal power of the
source.
Sequence diagrams
The sequence diagrams below show the sequences for closing and opening for a continuous breaker.
DESIGNER'S HANDBOOK 4189340911K UK
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