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SEBU8732
(Table 8, contd)
Warning
Shutdown
Lamp
Action Indi-
cator Lamp
Flashing
Off
Flashing
On
Flash Codes
Some applications may support flash codes. A flash
code can be viewed by an indicator lamp that when
asked will flash in a particular sequence. The
indicator lamp used to view the codes is the warning
lamp, the lamp can then be refer to as a diagnostic
lamp. For more information refer to this Operation and
Maintenance Manual, "Diagnostic Lamp".
Aftertreatment System
The aftertreatment indicators should illuminate at key
on for 2 seconds in order to test the system. If any of
the indicators do not illuminate, the fault must be
investigated immediately.
For more information on the illumination of the
aftertreatment indicators refer to this Operation and
Maintenance Manual, "Selective Catalytic Reduction
Warning System".
Overspeed
• ECM
• RPM
Indicator Lamp Table
Lamp State
Description of the Indication
Warning
Level 2 warning
Stop the engine. Investigate the code.
Engine Shutdown Level 3 warning
If both the warning lamp and the shutdown
lamp are in operation, this issue indicates
one of the following conditions.
1. One or more of the shutdown values for
the engine protection strategy has been
exceeded.
2. A serious active diagnostic code has been
detected.
If install, the audible warning will sound.
After a short time period, the engine may
shut down.
i03554501
Electronic Control Module
Revolutions Per Minute
The engine continues to be operated, but the
level of importance of the warning has
increased.
Depending on the particular fault and the se-
verity the engine may be de-rated.
The engine could be damaged if continued to
be operated.
The engine is either shutdown or an engine
shutdown is imminent. One or more monitored
engine parameters have exceeded the limit for
an engine shutdown. This pattern of lamps can
be caused by the detection of a serious active
diagnostic code.
Contact your Perkins dealer or your Perkins
distributor.
An overspeed is detected by the speed/timing
sensors.
The default setting for an overspeed is 3000 rpm. The
ECM will cut the power to the electronic unit injectors,
until the rpm drops below 200 rpm of the overspeed
setting. A diagnostic fault code will be logged into the
ECM memory and a warning lamp will indicate a
diagnostic fault code.
An overspeed can be set from 2600 rpm to 3000 rpm.
This setting depends on the application.
Sensors and Electrical
Components
The illustrations within the following sections are
typical location of the sensors or electrical
components for an industrial engine. Specific engines
may appear different due to differences in
applications.
43
Features and Controls
Overspeed
Engine Status
i05350563
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