Programmable Options and
Systems Operation
If the Warning/Derate/Shutdown mode has been
selected and the warning indicator activates,
bring the engine to a stop whenever possible. De-
pending on the application, special precautions
should be taken to avoid personal injury.
The engine can be programmed to the following
modes:
““Warning””
The “Warning” lamp and the warning signal (orange
lamp) turn “ON” and the warning signal is activated
continuously in order to alert the operator that one or
more of the engine parameters is not within normal
operating range.
““Warning/Derate””
The “Diagnostic” lamp turns “ON” and the warning
signal (red lamp) is activated. After the warning, the
engine power will be derated. The warning lamp will
begin to flash when the derating occurs.
The engine will be derated if the engine exceeds
preset operational limits. The engine derate is
achieved by restricting the amount of fuel that is
available for each injection. The amount of reduction
of fuel is dependent on the severity of the fault that
has caused the engine derate, typically up to a limit
of 50%. This reduction in fuel results in a
predetermined reduction in engine power.
““Warning/Derate/Shutdown””
The “Diagnostic” lamp turns “ON” and the warning
signal (red lamp) is activated. After the warning, the
engine power will be derated. The engine will
continue at the rpm of the set derate until a shutdown
of the engine occurs. The engine can be restarted
after a shutdown for use in an emergency.
A shutdown of the engine may occur in as little as 20
seconds. The engine can be restarted after a
shutdown for use in an emergency. However, the
cause of the initial shutdown may still exist. The
engine may shut down again in as little as 20
seconds.
If there is a signal for low oil pressure or for coolant
temperature, there will be a two second delay in
order to verify the condition.
For each of the programmed modes, refer to
Troubleshooting Guide, “Indicator Lamps” for more
information on Indicator Lamps.
For more information or assistance for repairs,
consult your Perkins distributor or your Perkins
dealer.
Instrument panels and Displays
In order to monitor the engine a wide verity of
instrument panels are available. These instrument
panels can contain the aftertreatment lamps and the
indicator lamps and the gauges for the application.
The regeneration switch can be incorporate within
the panel.
Also available are mini power displays and
performance monitors. These displays and monitors
can show the operator the following engine
information.
• The system configuration parameters
• The customer specified parameters
• Diagnostic codes
• Event codes
• Coolant temperature
• Oil temperature
• Oil pressure
• Intake temperature
• Intake pressure
• Atmospheric pressure
• Fuel temperature
i03928178
Sensors and Electrical
Components
(Aftertreatment)
The following view shows typical features of the
engine aftertreatment system. Due to individual
applications, your system may appear different from
the illustrations.
• Glossary
• ARD Aftertreatment Regeneration Device
• DOC Diesel Oxidation Catalyst
SEBU8601-04
39
Operation Section
Sensors and Electrical Components
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