Winco DSE71xx Series - Manual (Page 24)

DSE Model 71xx Series Control & Instrumentation System Mk2 Operators Manual
24 Part No. 057-113 71xx Series OPERATING MANUAL ISSUE 2 12/08/2010 ADM
6 OPERATION
6.1 AUTOMATIC MODE OF OPERATION
NOTE:- If a digital input configured to panel lock is active, changing module modes will not be possible. Viewing
the instruments and event logs is NOT affected by panel lock.
Activate auto mode by pressing the pushbutton. The icon is displayed to indicate Auto Mode operation if no alarms
are present.
Auto mode will allow the generator to operate fully automatically, starting and stopping as required with no user intervention.
6.1.1 WAITING IN AUTO MODE
If a starting request is made, the starting sequence will begin.
Starting requests can be from the sources shown below. When the engine is running in AUTO mode, an icon is displayed to
indicate the reason for the set being run :
Auto run reason Icon
Remote start input
Low battery run
Scheduled run
Mains failure (7120 only)
6.1.2 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 will return 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 will be cranked.
NOTE:- If the unit has been configured for CAN, compatible ECU’s will receive the start command via CAN.
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 will be
terminated and the display shows Fail to Start.
When the engine fires, the starter motor is disengaged. Speed detection is factory configured to be derived from the main
alternator output frequency but can additionally be measured from a Magnetic Pickup mounted on the flywheel (Selected by PC
using the 71xx series configuration software).
Additionally, rising oil pressure can be used to disconnect the starter motor (but cannot detect underspeed or overspeed).
NOTE:- If the unit has been configured for CAN, speed sensing is via CAN.
After the starter motor has disengaged, the Safety On timer activates, allowing Oil Pressure, High Engine Temperature, Under-
speed, Charge Fail and any delayed Auxiliary fault inputs to stabilise without triggering the fault.