SEBU8605-01 17
Safety Section
Engine Electronics
Uncontrolled e
lectrical circuit paths can result in
damage to the crankshaft bearing journal surfaces
and to aluminum components.
Engines that are installed without engine-to-frame
ground straps can be damaged by electrical
discharge.
To ensure that the engine and the engine electrical
systems fun
ction correctly, an engine-to-frame
ground strap with a direct path to the battery must be
used. This path may be provided by way of a direct
engine grou
nd to the frame.
The connections for the grounds should be tight and
free of cor
rosion. The engine alternator must be
grounded to the negative “-” battery terminal with
a wire that is adequate to handle the full charging
current of
the alternator.
The power supply connections and the ground
connecti
ons for the engine electronics should always
be from the isolator to the battery.
i03642610
Engine Electronics
Tampe
ring with the electronic system installation
or the OEM wiring ins tallation can be dangerous
and could result in personal injury or death and/or
engin
e damage.
Electrical Shock Hazard. The electronic unit inje c-
tors use DC voltage. The ECM sends this voltage
to the electronic unit injectors. Do not come in
contact with the harness connector for the elec-
tronic unit injectors while the engine is operating.
Failure to follow this instruction could result in
personal injury or dea th.
This engine has a comprehensive, programmable
Engine Monitoring System. The Electronic Control
Module (ECM) has the ability to monitor the engine
operating conditions. If any of the engine parameters
extend outside an allowable range, the ECM will
initiate an immediate action.
The following actions are available for engine
monitoring control:
•
Warning
•
Derate
•
Shutdown
The following monitored engine operating conditions
have the ability to limit engine speed and/or the
engine power
:
•
Engine Coolant Temperature
•
Engine Oil Pressure
•
Engine Spee
d
•
Intake Manifold Air Temperature
•
Engine Intake Throttle Valve Fault
•
Wastegate
Regulator
•
Supply Voltage to Sensors
•
Fuel Pressure in Manifold (Rail)
•
NOx Reduc
tion System
•
Engine Aftertreatment System
The Engine Monitoring package can vary for different
engine models and different engine applications.
However
, the monitoring system and the engine
monitoring control will be similar for all engines.
Note: M
any of the engine control systems and display
modules that are available for Perkins Engines will
work in unison with the Engine Monitoring System.
Toget
her, the two controls will provide the engine
monitoring function for the specific engine application.
Refer to Troubleshooting for more information on the
Engin
eMonitoringSystem.
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