DISC AS-BRAKE 7S3992 - Caterpillar

Engine Supervisory System
The engine supervisory system is specifically designed for Caterpillar G3600 Engines. The engine supervisory system integrates several engine control systems. The engine supervisory system optimizes each controlled parameter in order to ensure maximum engine performance.The engine supervisory system consists of the following components:
Control panel
Junction box
Actuators
Potentiometers
Relays, solenoids, sensors, and switches
WiringThe engine supervisory system includes three systems that are integrated:Start/Stop/Prelube System - This system controls the starting of the engine, the stopping of the engine, and the prelube pump.Engine Monitoring And Protection System - This system provides a display of parameters of engine operation. The system generates warnings when one or more parameters are outside acceptable limits. The system can stop the engine if the engine operation reaches a setpoint that is programmed for shutdown. The system can prevent the engine from starting if certain parameters are outside of acceptable limits.Engine Control System - This system governs the engine. This system controls the air/fuel ratio, the ignition timing, and the limiting of power.Some of the components within the engine supervisory system perform more than one function. For example, the engine control module is involved with these activities:
Starting
Monitoring
Controlling
StoppingThe components of the control panel are briefly described in this section. For more detailed information on the engine supervisory system, see the Service Manual, "Systems Operation/Testing and Adjusting" module.Control Panel
Illustration 1 g00452491
(1) Caterpillar monitoring system
(2) Timing control module
(3) "FUEL ENERGY CONTENT" potentiometer
(4) Engine control module
(5) "SPEED CONTROL" potentiometer
(6) Status control module
(7) Mode control switch
(8) Pyrometer
(9) "EMERGENCY STOP" button
(10) "MANUAL PRELUBE" switch Start/Stop/Prelube
Illustration 2 g00291853
(1) Mode control switch
(2) "EMERGENCY STOP" button
(3) "MANUAL PRELUBE" switch Mode Control Switch
Mode control switch (1) has four positions:
"AUTO"
"START"
"STOP"
"OFF/RESET""AUTO" - When the mode control switch is in the "AUTO" position, the system is configured for remote operation. When the remote start/stop initiate contact closes, the prelube system will operate and the engine will start. When the remote start/stop initiate contact opens, the engine will shut off. If the cool down cycle is programmed, the engine will operate for the cool down period before the engine stops. The cool down cycle can be programmed for a 0 to 30 minute period."START" - When the mode control switch is turned to the "START" position, the prelube system will operate. When the prelube pressure is sufficient, the engine will start. The engine will operate until the engine supervisory system receives a shutdown signal.The following methods cause a shutdown signal:
The remote start/stop initiate contact opens when the mode control switch is in the "AUTO" position.
The mode control switch is turned to the "STOP" position.
The mode control switch is turned to the "OFF/RESET" position.
The "EMERGENCY STOP" button is pressed.
An undesirable operating condition is sensed and an engine shutdown is initiated by the engine supervisory system."STOP" - When the mode control switch is turned to the "STOP" position, the engine will shut off. If the cool down cycle is programmed, the engine will operate for the cool down period before the engine stops. After the engine stops, a postlube cycle will operate. The power to the