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© Scania Industrial & Marine Engines
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
❍
The LED is out.
STARTING
✹
The LED lights up as soon as the engine turns
over on cranking and 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
detects 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 smoke
limiter restricts the maximum fuel quantity.
Operation of the smoke limiter is dependent on
the charge air pressure.
POWER
-
❍
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 to allow the
engine to be operated according to more than
one power/torque curve (map), the following
applies.
The LED comes on when the engine is run 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 output
required is less than 100%.