DSE Model 560 Automatic Start Engine Management and Instrumentation System Operators Manual
560 OPERATING MANUAL ISSUE 5 4/4/02 MR
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2.3 ELECTRICAL TRIPS
Electrical trips are latching and stop the Generator but in a controlled manner. On initiation of the
electrical trip condition the module will de-energise the ‘Load Transfer’ Output to remove the load
from the generator. Once this has occurred the module will start the Cooling timer and allow the
engine to cool, off-load before shutting down the engine. The alarm must be accepted and cleared,
and the fault removed to reset the module.
In the event of a shutdown alarm the LCD will display:-
The COMMON ALARM LED will also illuminate (Red steady) and the generator will be removed
from the load. Once the cooling timer has expired the COMMON ALARM LED will flash (Red).
AUXILIARY INPUTS, if an auxiliary input has been configured as an electrical trip the appropriate
LCD segment will be displayed:-
!
!!
!
The COMMON ALARM LED will illuminate (red Steady) until the engine is shutdown (red flashing).
2.4 SPECIAL ALARM CONDITIONS
The microprocessor has a ‘watchdog’ facility which continually monitors the operation of the
module. Should an error occur and the microprocessor is still functioning, an alarm will be
indicated by the LCD back-light flashing and the common alarm LED being illuminated RED
(steady).
If the module is being configured and does not receive the correct information via the 808 interface
the ‘watchdog’ will halt the module operation and signal a corrupt user configuration by flashing the
LCD back-light and illuminating the common alarm LED GREEN (steady). Attempting to re-send
the configuration should rectify the alarm unless a problem exists with the configuration transfer
(such as a broken cable, etc).
If in doubt please refer Deep Sea Electronics PLC.
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