DSE Model 5110 Automatic Start Engine Management Instrumentation System
Part No. 057-009 5110 Operating Manual Issue 3.3 3/1/2006 13
5.2 SHUTDOWNS
Shutdowns are latching and stop the Generator. The alarm must be cleared, and the fault removed to
reset the module.
In the event of a shutdown alarm the LCD will display: -
(flashing).
The appropriate icon will also be displayed flashing
NOTE:- The alarm condition must be rectified before a reset will take place. If the alarm
condition remains it will not be possible to reset the unit (The exception to this is the Low Oil
Pressure alarm and similar ‘delayed alarms’, as the oil pressure will be low with the engine at
rest). Any subsequent warnings or shutdowns that occur will be displayed steady, therefore
only the first-up shutdown will appear flashing.
FAIL TO START, if the engine does not fire after the pre-set number of attempts has been made a
shutdown will be initiated.
The
icon will illuminate.
EMERGENCY STOP, removal of the Positive DC Supply from the Emergency Stop input initiates the
following sequence, firstly it will initiate a controlled shutdown of the Generator and prevent any attempt to
restart the Generator until the Emergency Stop push-button has been reset. Secondly it removes the
Positive DC supply from both the Fuel Solenoid and Starter Solenoid.
The
icon will illuminate.
NOTE:- The Emergency Stop Positive signal must be present otherwise the unit will
shutdown.
LOW OIL PRESSURE, if the module detects that the engine oil pressure has fallen below the low oil
pressure trip setting level after the Safety On timer has expired, a shutdown will occur.
The
icon will illuminate.
HIGH ENGINE TEMPERATURE if the module detects that the engine coolant temperature has exceeded
the high engine temperature trip setting level after the Safety On timer has expired, a shutdown will
occur.
The
icon will illuminate.
OVERSPEED / OVERFREQUENCY, if the engine speed exceeds the pre-set trip a shutdown is initiated.
The
icon will illuminate.
Overspeed is not delayed, it is an immediate shutdown.
NOTE:- During the start-up sequence the overspeed trip logic will allow for a small amount
of overshoot. This temporarily raises the overspeed trip point during the safety delay timer. This
is used to prevent nuisance tripping on start-up.
UNDERSPEED / UNDERFREQUENCY, if the engine speed falls below the pre-set trip after the Safety
On timer has expired, a shutdown is initiated.
The
icon will illuminate.
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