16
OPM-147/C
SHUTDOWN
Shutdowns are critical alarm conditions that stop the
engine and draw the operator’s attention to an
undesirable condition. Shutdown alarms are latching.
The fault must be removed and the STOP/RESET button
pressed to reset the module. The icon will be flashing in
the display.
MANUAL MODE
1. Press and release the MANUAL MODE button. The small
LED light next to it should come on.
Note:
There is no start delay in this mode of operation.
2. Press and release the green START ENGINE button. The
DSE 7310 will send two signals to the engine. The first
signal wire #21 will engage the fuel solenoid, the second
wire, #22, will engage the starter on the engine. At this
point the DSE 7310 will start the cranking cycle (10
seconds on and 10 seconds off).
Note:
Wire #93 is energized to turn on the glow plugs for
15 seconds first and then the starter and fuel solenoid are
engaged.
If the engine fails to start during this cranking period, the
starter motor is disengaged and goes into a rest mode
after which a second attempt is made to start the engine.
Should this sequence continue through 3 cranking cycles
the start sequence will be stopped and the display will
show ‘FAILED TO START’.
3. During manual operation, the load will not normally be
applied to the generator. But caution must be used, if the
line power should fail or be turned off the transfer switch
during manual operation the load may be applied to the
generator.
With the engine running smoothly check the no load
voltage and frequency on the digital display. The voltage
should match the nameplate and a frequency of 59.5 to
60.5 hertz (Hz).
If you have the proper voltage at the generator the next
step is to check the voltage at the generator terminals
in the Automatic Transfer Switch. The voltage between
the G1 and the G3 terminals should be the same as it
was on the generator front panel. The voltage should
also be checked between the hot terminals (G1 and G3)
and the G-N to be certain of a balanced voltage output
and a solid neutral connection. The voltage between G1
and G-N should be about 120 volts AC (277 on 480
units). The same approximate voltage should be found
between terminals G3 and G-N (120 volts AC).
On three phase panels the G2 voltage level should also
be checked. ON 240 VOLT (DELTA) SYSTEMS BE SURE
YOU KNOW WHERE THE HIGH VOLTAGE “WILD” LEG IS.
IT MUST BE IN THE SAME LOCATION ON THE LINE SIDE
AS IT IS ON THE GENERATOR SIDE. (i.e. if it’s on L-3 on
the line side it must be on G-3 on the generator side. Also
on three phase systems make sure that the rotation is the
same on the generator as it is on your line power. Failure
CONTROL LAYOUT
STOP/RESET - This button places the module
into its Stop/Reset mode. This will clear any
alarm conditions for which the triggering
criteria have been removed. The fuel supply
de-energizes and the engine comes to a
standstill. Should a remote start signal be
present while operating in this mode, a
remote start WILL NOT occur.
MANUAL MODE - This button places the
module into its Manual Mode. Once in
Manual Mode, the model responds to the
Start button to start the generator and run it
off load.
START - Pressing this button from STOP/RESET
will start the engine and run the load.
AUTO MODE - This button places the
module into its Auto Mode. This mode allows
the module to control the function of the
generator automatically.
ALARM/LAMP TEST - This button silences the
audible alarm in the controller, deactivates
the Audible Alarm output (if configured) and
illuminates all of the LEDs on the module’s
face as a lamp test function.
MENU NAVIGATION - Used for navigating the
instrumentation, event log, and configuration
screens.
A small rocker switch is located on the
underside of the engine control cabinet.
On gaseous models, the engine timing is
controlled by the ECU on the engine and you
need to tell it what fuel you want to operate
on; LP or NG.
On diesel models, this switch has been
disconnected and will do nothing.
PROTECTIONS
When an alarm is present, the common alarm LED, if
configured, will illuminate. The LCD display will show an
icon to indicate the failure.
WARNINGS
Warnings are non-critical alarm conditions. They do not
affect the operation of the generator system, they
serve to draw the operator’s attention to an undesirable
condition. Warning alarms are self-resetting when the
fault condition is removed. The icon will appear steady in
the display.
