2003-10:1 © Scania Industrial & Marine Engines 15
LED functions during normal operation
Note: The lamp test/fault code switch should not be
depressed. All LEDs come on briefly when
the control unit is powered up.
CONTROL STATUS
< The LED flashes continuously when the control
unit is supplied with current, regardless of
whether the engine is running or not.
SHUTDOWN
P The LED is out.
STARTING
< The LED lights up as soon as the engine starts to
rotate during an attempt to start it, follows the
programmed starting sequence until it has been
completed and then goes out.
RUNNING
< The LED comes on when the engine has started
and the "Starting"-LED goes out. It remains on
until the engine is stopped.
TORQUE LIMIT
< The LED comes on when the control unit senses
that the engine has received the maximum
permissible quantity of injected fuel according
to its power curve. This means 100% power
output at the current rpm. If the load increases,
engine rpm will decrease.
BOOST LIMIT
< The LED comes on when the control unit's
smoke limiter limits the maximum fuel quantity.
Operation of the smoke limiter is dependent on
the charge air pressure.
POWER-
P The LED remains out during normal operation
as long as no fault is detected by the control
unit. See next page for the procedure to be
adopted in the event of a fault.
POWER+
< If the control unit is programmed so that the
engine can be operated with more than one
power/torque curve (map), the following
applies.
The LED comes on when the engine is operated
at more than 100% power output (MAP 2). It
goes out when the engine returns to the 100%
power output curve (MAP 1) or when the power
requirement drops to below 100%.
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