Figure 8.4
Successful engine start sequence for a stop coil system
Start
attempts
1
Crank
Running
detection
t1
(1)
(2)
(3)
t1 = Crank on (
Parameters > Engine > Start sequence > Crank > Crank on
)
1.
Start attempts
: The engine starts during the first start attempt.
2.
Crank
:
Engine > Crank
(digital output). The controller activates the
Crank
output. If
Running detection
changes from OFF to ON,
cranking stops.
3.
Running detection
. The engine is regarded as started when
Running detection
is ON.
Figure 8.5
Failure of engine start sequence for a stop coil system
Start
attempts
1
Crank
2
3
Running
detection
t2
t1
Stop coil
t3
(1)
(2)
(3)
(4)
t2
Start failure
(5)
t1
Crank on (
Parameters > Engine > Start sequence > Crank > Crank on
)
t2
Crank off (
Parameters > Engine > Start sequence > Crank > Crank off
)
t3
Extended stop (
Parameters > Engine > Stop sequence > Extended stop
) (optional)
Failure of engine start sequence for a stop coil system:
1.
Start attempts
:
Parameters > Engine > Start sequence > Start attempts > Normal
= 3.
2.
Crank
:
Engine > Crank
(digital output). The controller activates the
Crank
output for the
Crank on
time, and deactivates it for
Crank off
time.
3.
Stop coil
:
Engine > Stop coil
(digital output). If
Running detection
is OFF after the
Crank on
time, then the controller activates
the
Stop coil
for the time in the
Crank off
parameter. If all start attempts fail, the controller also activates the
Stop coil
for the time
in
Extended stop > Stop coil activated
. This ensures that the engine is stopped if the engine start was not detected. The engine
cannot be started during the
Extended stop > Stop coil activated
time.
4.
Running detection
. There is no running detection.
5.
Start failure
. The controller activates the
Start failure
alarm after the last unsuccessful start attempt.
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