Datakom D-500 MK2, User Manual

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D-500 MK2 User Manual Firmware V-6.3
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When mains are evaluated as “available” again then an engine stop sequence begins:
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The engine will continue to run for the mains waiting per iod to allow mains voltages to stabilize.
•
Then the generator contactor is deactivated and the mains contactor will be energized after mains
contactor timer.
•
If a cooldown period is given, the generator will continue to run during the cooldown period.
•
Before the end of cooldown, the unit will reduce the engine speed to idle speed.
•
At the end of cooldown, the fuel solenoid will be de-energized, the stop solenoid will be energized for
Stop Solenoid timer and the diesel will stop.
•
The unit will be ready for the next mains failure.
The RUN mode is entered by pressing the MAN and then the RUN buttons.
When the RUN mode is selected, the engine will be started regardless of the mains availability.
The starting sequence is as described below:
•
The unit turns on the fuel and preheat glow plugs (if any) and waits for preheat timer.
•
The engine will be cranked for programmed times during crank timer. When the engine fires, the
crank relay will be immediately deactivated. See section Crank Cutting for more details.
•
The engine will run at idle speed during Idle Speed Timer.
•
The engine will run unloaded until another mode is selected.
The RUN mode allows also manual contactor control through MC and GC buttons.
When a contactor button is pressed, the related contactor will change position. Thus if it was on, then it
will turn off. If it was off then it will turn on.
If the other contactor was on, then it will turn off, the controller will wait for the related contactor timer and
the contactor will turn on. This will prevent manual closure of both contactors.
In order to stop the engine press button or select another mode of operation.
If Emergency Backup mode is enabled and if the mains are
off, then the mains contactor will be deactivated and the
generator contactor will be activated.
When the mains are on again, a reverse changeover to the
mains will be performed, but the engine will be kept running
unless another mode is selected.
14.4. RUN MODE, MANUAL CONTROL
If the operation of the genset is disabled by the weekly
schedule, then the AUTO led will flash, and the operation of the
genset will be as in the STOP mode.