PRACTICAL EXAMPLE OF A START OPERATION
NOTE
It is advisable before starting the starting cycle that the general circuit breaker
of the genset is in the OFF position.
OPERATION
By pressing the START button the start cycle is initiated and is indicated by the
START button's LED switching on. At the same time if the engine has a preheating
plug the PR output is activated, with the corresponding LED switching on (
),
for the programmed time (0 seconds by default). (1)
Fig.1
Once this time has elapsed the PR output is deactivated, and the corresponding
LED turns off (
) and immediately the positive contact of the PC output is
activated and 0.5 seconds later the ARR output with the switching on of the
LED (
), this output remains activated until any engine running condition is
detected. (2)
Fig.2
7. Fumes control. The CEA7 control unit allows you to handle start-up in fumes
limitation mode by:
• Assigning a programmable output (Settings table, parameter 1 to 4,
value 97) that enables a fumes limitation system during the start-up
process that remains active for a programmable length of time (Times
table, parameter 33) once the engine is running.
• It is possible to programme an idling start-up speed (table J1939,
parameter 8) that remains active for a programmable length of time
(Times table, parameter 33) before commuting to rated speed.
If the engine start is not detected during the programmed time, the control unit
waits for a period of time (Times table, parameter 2) before retrying a new start
up. Once passed a certain number of start ups without detecting any starting
condition (Times table, parameter 1), the control unit activates the Start Failure
alarm.
During start up, the battery charge alternator is performed at through the D+
output for a time (Times table, parameter 8). Once the excitation of the alternator
is nished, the measurements module monitors the correct operation of the
battery charging alternator. If a battery charge alternator fault is detected, the
Alternator Failure alarm is activated (Alarms table, parameter 10).
OPERATION | PAGE 11
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