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PROTECTION OPTIONS
ECU SAFETY SHUTDOWNS AND WARNINGS
Once the engine is started, the engine’s ECU has primary control over the operation of the engine
under safe conditions. If the ECU detects that any of its critical parameters are out of tolerance, the
ECU can take a variety of actions, including derating of the engine horsepower or complete engine
shut down. The display will illuminate the red or yellow LED as instructed by the ECU and display any
trouble code as presented from the ECU. Some engine manufacturers have unique codes that the
control panel will show in lieu of the J1939 DM1 messaging. Otherwise, codes will be displayed as
J1939 SPN (Suspect Parameter Number) and FMI (Failure Mode Identifier).
Example of Low Oil Pressure shutdown by engine’s ECU
MODULE SAFETY SHUTDOWNS AND WARNINGS
The control panel also has the ability to monitor the engine vitals if configured. The ability to set pre
alarms and alarms in the panel is supported to back up the ECUs safeties in the event the ECU
shutdowns were not enabled or a more conservative setting is desired. If the parameter falls outside
of the normal operating range, the control panel will stop the engine by removing power to the fuel
solenoid or ignition circuit. The display will indicate the reason for the shutdown and a red alarm lamp
will be illuminated in the upper left corner of the module.
Mechanical engines should use the module for all desired engine protection.
