Deep Sea Electronics Plc DSE8810, Software Manual

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Function Description
Low Fuel Level Switch A digital normally open or closed fuel level switch gives this input. It
allows fuel level detection using the switch and the analogue input to be
used in parallel to give protection or to be used for fuel level indication
only.
Main Config Select This input is used to select the Main configuration when Alternative
configurations are enabled.
Mains Parallel Mode This input is used to configure the load-sharing module as to how it will
operate when in parallel.
If the input is not active, the module will communicate with other
controllers to maintain equal share of the load between systems.
If the
Mains Parallel Mode input is active, the controller will not
communicate with others, but will instead ramp up to the pre-configured
level for Base Load or Fixed Export mode with the mains supply.
MSC Alarms Inhibit
This input is used to prevent MSC alarms. It is particularly useful when
a set is being removed from duty for maintenance.
NOTE: For further details on MSC alarms, refer to the DSE
Guide to Synchronising and Load Sharing.
Oil Pressure Switch
A digital normally open or closed oil pressure switch gives this input. It
allows oil pressure protection using the switch and the analogue input to
be used in parallel to give protection or to be used for oil pressure
indication only.
Open Generator
IEEE 37.2 - 52 AC circuit breaker
Opens the generator breaker, ramping off load if part of a parallel
system.
Paralleling Inhibit
IEEE 37.2 - 3 checking or
interlocking relay
This input is used to prevent the generator from running in parallel with
the Bus/Mains supply. This can be used to prevent the generator and
mains from being paralleled and force a clean break transfer. If the
input becomes active while in parallel then the transfer will be
completed and paralleling ends.
Remote Start off load
If this input is active, operation will be similar to the ‘Remote Start on
load’ function except that the generator will not be instructed to take the
load. This function can be used where an engine only run is required
e.g. for exercise.
Remote Start on load When in auto mode, the module will perform the start sequence and
transfer load to the generator.
In Manual mode, the load will be transferred to the generator if the
engine is already running, however in manual mode; this input will not
generate start/stop requests of the engine.
Remote Start On Load Demand If this input is active, the load demand start up and shut down scheme
will be activated when two or more generators are running in parallel.
On application, all sets will start a race for the bus. The first available
set will close onto the dead bus and the others will synchronise to it.
Once the sets are on load they will compare load levels and redundant
sets will commence a shutdown sequence and return to standby until
the load level is such that they are required.
Reset Maintenance Alarm 1-3 These inputs are used to reset the maintenance alarms. When
activated it will reset the maintenance counter to the pre-configured
value (i.e. 250 hours). If the maintenance alarm is configured to monitor
the monthly service interval this will also be reset to the pre-configured
period (i.e. 6 Months).
Simulate Auto Button
NOTE: If a call to start is present when AUTO MODE is
entered, the starting sequence will begin. Call to Start can come
from a number of sources depending upon module type and
configuration and includes (but is not limited to) : Remote start
input present, Mains failure, Scheduled run, Auxiliary mains failure
input present, Telemetry start signal from remote locations.
This input mimic’s the operation of the ‘Auto’ button and is used to
provide a remotely located Auto mode push button.