Filter
Top Products
AR-EXP-CUMMINS-07-00 OWNERS MANUAL
Page 26
7. CONTROL PANEL OPERATION
7.1. DESCRIPTION OF OPERATION
7.1 .1 MANUAL MODE OPERATION
To initiate a start sequence in MANUAL, turn the key to the
position.
To start the set, press the button. Preheating will
begin, indicated by the LED.
NOTE:- There is no Start Delay in this mode of
operation. Starting will commence as soon as the
start button is pressed.
The Fuel Solenoid is energised, then the Starter Motor is
engaged.
The engine is cranked for a 10-second period. If the engine
fails to fire during this cranking attempt then the starter
motor is disengaged for a 10-second period. Should this
sequence continue beyond the 3 starting attempts,
the start sequence will be terminated and Fail to Start
fault will be illuminated.
When the engine fires, the starter motor is disengaged and
locked out at 20 Hz measured from the Alternator output.
After the starter motor has disengaged, the Safety On timer
is activated (which is fixed at 10 seconds), allowing Oil Pres-
sure, High Engine Temperature, Under-speed and Charge
Fail to stabilise without triggering the fault.
Selecting STOP de-energises the FUEL SOLENOID,
bringing the generator to a stop.
7.1..2 AUTOMATIC MODE OF OPERATION
To initiate a start sequence in AUTO, turn the key to
the posi- tion.
The start sequence is initiated when the remote start input
is activated. After a fixed 5 second start delay, Preheating
will occur (fixed at 10s) , indicated by the LED.
The Fuel Solenoid is energised, then one second later, the
Starter Motor is engaged.
The engine is cranked for a 10-second period. If the engine
fails to fire during this cranking attempt then the starter
motor is disengaged for a 10-second rest period. Should
this sequence continue beyond the 3 starting attempts, the
start sequence will be terminated and Fail to Start fault will
be illuminated.
When the engine fires, the starter motor is disengaged and
locked out at 20 Hz measured from the Alternator output..
After the starter motor has disengaged, the Safety On timer
is activated, allowing Oil Pressure, High Engine Tempera-
ture, Under-speed and Charge Fail to stabilise without trig-
gering the fault. On removal of the Remote Start signal the
Stop delay timer is initiated. Once this timer has expired the
Fuel Solenoid is de-energised, bringing the generator to a
stop.
7.1.3 WARNINGS
Warnings are used to warn the operator of an impending
fault BATTERY CHARGE FAILURE, if the module does not
detect a voltage from the warning light terminal on the aux-
iliary charge alternator, the icon will illuminate.
7.1.4 SHUTDOWNS
Shutdowns are latching and stop the Generator. The alarm
must be cleared, and the fault removed to reset the mod-
ule. In the event of a shutdown the appropriate LED will be
illuminated 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).
FAIL TO START, if the engine does not fire after the pre-set 3
attempts at starting, a shutdown will be initiated. The icon
will illuminate.
LOW OIL PRESSURE, if the module detects that the engine
oil pressure has fallen below the low oil pressure switch
after the Safety On timer has expired, a shutdown will oc-
cur. The icon will illuminate.
HIGH ENGINE TEMPERATURE if the module detects that the
engine coolant temperature has exceeded the high engine
temperature switch after the Safety On timer has expired, a
shutdown will occur. The icon will illuminate.
OVERSPEED, if the engine speed exceeds the pre-set trip
(14% above the nominal frequency) a shutdown is initiated.
Overspeed is not delayed, it is an immediate shutdown. The
icon will illuminate.
NOTE:- During the start-up sequence the overspeed
trip level is extended to 24% above the normal fre-
quency for the duration of the safety timer to allow
an extra trip level margin. This is used to prevent
nuisance tripping on start-up.
UNDERSPEED, if the engine speed falls below 20Hz (fixed)