Deep Sea Electronics Plc DSE8810, Руководство пользователя программного обеспечения

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4.4.7 DIGITAL INPUT FUNCTIONS
Where a digital input is NOT configured as “user configured”, a selection can be made from a list of
predefined functions. The selections are as follows:
Under the scope of IEEE 37.2,
function numbers can also be used to represent functions in microprocessor
devices and software programs . Where the DSE input functions can be represented by IEEE 37.2, the
function number is listed below.
NOTE: Input selection is dependant on controller.
Function Description
Air flap closed auxiliary
IEEE 37.2 - 3 Checking or
interlocking relay
This input is used to connect to the Air flap switch contacts. This will
give an immediate shutdown in the event of the air-flap being closed. It
will also prevent the generator from being restarted if the air flap has not
been reset following an overspeed shutdown.
Alarm Mute This input is used to silence the audible alarm from an external source,
such as a remote mute switch.
Alarm Reset This input is used to reset any latched alarms from a remote location. It
is also used to clear any latched warnings which may have occurred (if
configured) without having to stop the generator.
Alt Config 1-3 Select These inputs are used to instruct the module to follow one of the
alternative configuration settings instead of the main configuration
settings.
Alternative Language Select
This input is used to instruct the module to display the alternative
Language instead of the default module display language.
Auto start Inhibit
IEEE 37.2 - 3 checking or
interlocking relay
This input is used to provide an over-ride function to prevent the
controller from starting the generator in the event of a remote
start/mains out of limits condition occurring. If this input is active and a
remote start signal/mains failure occurs the module will not give a start
command to the generator. If this input signal is then removed, the
controller will operate as if a remote start/mains failure has occurred,
starting and loading the generator. This function can be used to give an
‘AND’ function so that a generator will only be called to start if the
mains fails and another condition exists which requires the generator to
run. If the ‘Auto start Inhibit’ signal becomes active once more it will be
ignored until the module has returned the mains supply on load and
shutdown.
This input does not prevent starting of the engine in MANUAL or TEST
modes.
Clear Mains Decoupling Alarms This input is used to reset the module following a Mains Decoupling
Alarm (ROCOF, vector shift, Mains Voltage Alarm, Mains Frequency
Alarm). The input must switch from inactive to active to reset the trip, it
cannot be left permanently active.
Close Generator
IEEE 37.2 - 52 AC circuit breaker
Closes the Generator load switch (synchronising first if required)
Coolant Temperature Switch This input is used to give a Coolant Temperature Hig h shutdown from a
digital normally open or closed switch. It allows coolant temperature
protection using the switch and the analogue input can be used in
parallel to give protection or configured to be used for indication only.
Disable Protections The system designer provides this switch (not DSE) so its location will
vary depending upon manufacturer, however it normally takes the form
of a key operated switch to prevent inadvertent activation. Depending
upon configuration, a warning alarm may be generated when the switch
is operated.
When active, and the module is suitably configured (see section entitled
‘Application’) this prevents the engine being stopped upon critical alarm
(Sometimes called War Mode or Run to Destruction)