Datakom DKG-151 Installation And Operating Instructions

INSTALLATION AND OPERATING INSTRUCTIONS
DESCRIPTION
The model DKG-151 is a microprocessor controlled
unit used to start and stop the genset manually
using the key switch and pushbuttons on the front
panel.
When the engine is running, the unit monitors fault
conditions and shuts-down the engine automatically
in the occurrence of an alarm. The alarms are
identified by a group of LEDs displaying only the
first occurring one.
The unit has jumper selectable options for 50/60Hz
nominal frequency and the auxiliary relay output
function. The selection is made by the position of a
single jumper situated at the left side panel of the
unit.
If the jumper is placed between:
A & B : 50 Hz nominal, AUX is Preheat output
B & C : 60 Hz nominal, AUX is Preheat output
C & D : 60 Hz nominal, AUX is Stop output
D & A : 50 Hz nominal, AUX is Stop output
In the OFF position, the DC supply is removed from
the module, thus zero power consumption is
achieved.
OPERATION
The unit powers up when the RUN position on the
front panel is selected.
PREHEAT/STOP ( ) button may be depressed
as long as needed. This will activate the
AUXILIARY relay output and the related front panel
led marked ( ).
The engine is started using the pushbutton marked
MANUAL START UNIT
If required, the
DKG-151
CRANK (I). This will also energize the fuel solenoid
relay. Once the engine is running, the switch should
be released. However the internal logic inhibits
cranking when the engine fires up.
The alarm checking is only enabled after the
protection hold-off timer is expired. This timer
resets to 12 seconds if:
-the unit is powered up,
-or CRANK (I) button is pressed,
-or PREHEAT/STOP (
-or the engine gets running.
The occurrence of below fault signals (which are
close on fault) will cause the engine to be stopped
immediately:
-Overspeed,
-Underspeed,
-High engine temperature,
-Low oil pressure,
-Auxiliary shutdown.
If a fault condition occurs, the FUEL solenoid will
be deenergized. If the auxiliary relay output is set to
Stop option, the AUXILIARY relay output will be
energized during stop timeout and
associated with this condition will turn on. To reset
the fault condition, turn the switch to the OFF
position for a few seconds.
The Charge Fail input is treated as a warning only
and do not cause the engine to stop. The input
monitors the D+ terminal of the charge alternator.
To shut-down the engine manually:
-if the AUX output is set to Stop option, press the
PREHEAT/STOP ( ) button until the engine
comes to rest. Then select the OFF position on the
switch.
-else select the OFF position on the switch.
) button is pressed,
the led