G80XW/XF, G115XW/XF, G150XW/XF, G200XW/XF - 50HZ
OPERATION & MAINTENANCE MANUAL
36
G100XW/XF, G135 XW/XF, G170XW/XF, G225XW/XF - 60Hz
AUTOMATIC MODE
Note: If a digital input configured to
Panel Lock
is
active, changing module modes is not be
possible. Viewing the instruments and event
logs is NOT affected by
Panel Lock
.
Waiting In Auto Mode
If a starting request is made, the starting sequence
begins. Starting requests can be from the following
sources:
•
Activation of the inbuilt exercise scheduler.
Starting Sequence
To allow for 'false' start requests, the
start delay
timer
begins.
Should all start requests be removed during the
start
delay
timer, the unit returns to a stand-by state. If a start
request is still present at the end of the
start delay
timer,
the fuel relay is energised and the engine is cranked.
Additionally, rising oil pressure can be used to disconnect
the starter motor (but cannot detect underspeed or
overspeed).
After the starter motor has disengaged, the
Safety On
Delay
timer activates, allowing Oil Pressure, High Engine
Temperature, Under-speed, Charge Fail and any delayed
Auxiliary fault inputs to stabilise without triggering the
fault.
Engine Running
Note: The load transfer signal remains inactive until
the Oil Pressure has risen. This prevents
excessive wear on the engine.
The generator is placed on load if configured to do so. If
all start requests are removed, the
stopping sequence
will begin.
Stopping Sequence
The
Return Delay
timer operates to ensure that the
starting request has been permanently removed and isn't
just a short term removal. Should another start request
be made during the cooling down period, the set returns
on load.
If there are no starting requests at the end of the
Return
Delay
timer, the load is removed from the generator to
the mains supply and the
cooling
timer is initiated.
The
Cooling Down
timer allows the set to run off load and
cool sufficiently before being stopped. This is particularly
important where turbo chargers are fitted to the engine.
After the
Cooling Down
timer has expired, the set is
stopped.
Auto Mode
is activated by pressing the
Auto
Mode
button. The
Auto Mode
icon is
displayed to indicate
Auto Mode
operations.
Auto Mode
allows the generator to operate
fully automatically, starting and stopping as
required with no user intervention.
If the engine fails to fire during this cranking
attempt then the starter motor is disengaged
for the
Crank Rest
duration after which the
next start attempt is made. Should this
sequence continue beyond the
Set Number
Of Attempts
, the start sequence is terminated
and the display shows
Fail to Start
. The
starter motor is disengaged when the engine
fires. Speed detection is factory configured to
be derived from the AC alternator output
frequency, but can additionally be measured
from a Magnetic Pickup mounted on the
flywheel or from the CAN link to the engine
ECU depending on module.
Once the engine is running and all starting
timers have expired, the animated
Engine
Running
icon is displayed.