C7 Industrial Engine Engine Monitoring System (EMS) Caterpillar


Engine Monitoring System (EMS)
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C7 Industrial Engine [SEBU8089]
OPERATOR STATION
MONITOR GP
C7 Industrial Engine Engine Monitoring System (EMS)
1.1. EMS Main Unit
2.1. Quad Gauge Unit
3.1. Tachometer Unit
4.1. Communication Data Link


Illustration 1g00788015
(1) Main unit
(2) Tachometer (unit)
(3) Quad gauge

The AVSpare Engine Monitoring System (EMS) is an option. The engine parameters are displayed in both digital display and analog. The EMS display is for electronically controlled engines.

The EMS includes three individual gauge units. The units can be installed in various combinations. The main unit must be used if any of the units are used.

For information on installation and troubleshooting, refer to Installation Guide, REHS0871.

EMS Main Unit



Illustration 2g00595165
(4) Engine oil pressure
(5) Engine coolant temperature
(6) Fuel pressure
(7) Inlet manifold temperature
(8) Fuel temperature
(9) Engine coolant level
(10) Battery voltage
(11) Active engine derate
(12) Auxiliary temperature
(13) Auxiliary pressure

The Engine Monitoring System provides warning lamps. Refer to Illustration 2. The Engine Monitoring System provides a LCD display for engine parameters. When the scroll switch is depressed, the parameters will scroll on the screen. The EMS displays the real time value for the parameter that is selected. The default is engine speed.

The parameters are abbreviated on the LCD display. Table 1 lists the parameters.

Table 1
Abbreviation  Parameter 
Spd  Engine Speed 
GA-1  Engine Oil Pressure 
GA-2  Coolant Temperature 
GA-3  Battery Voltage 
GA-4  Fuel Pressure 
Boost  Boost Pressure 
IAirT  Inlet Air Temperature 
FuelT  Fuel Temperature 
AccrP  Auxiliary Pressure 
AccrT  Auxiliary Temperature 
Fuel  Fuel Rate 
Hrs  Engine Hours 
Load  Percent of Engine Load (speed and derate) 

Note: For detailed information on the exact parameters for your engine, refer to the Operation and Maintenance Manual, "Gauges and Indicators".

Quad Gauge Unit



Illustration 3g00595166
(14) Engine oil pressure
(15) Engine coolant temperature
(16) Battery voltage
(17) Fuel pressure

The quad gauge unit displays the following information: engine oil pressure, engine coolant temperature, battery voltage and fuel pressure

Note: The gauge needles may not always return to zero position when the engine is not running.

Note: For detailed information on the exact parameters for your engine, refer to the Operation and Maintenance Manual, "Gauges and Indicators".

Tachometer Unit



Illustration 4g00788023
(18) Tachometer

The tachometer displays the engine speed (rpm) on an analog gauge.

Note: For detailed information on the exact parameters for your engine, refer to the Operation and Maintenance Manual, "Gauges and Indicators".

Communication Data Link

The EMS provides two pins that are connected to the data link. The data link is available to share data with other modules. The ECM processes engine parameters. The parameters will then be transmitted to the EMS through the data link. The EMS receives the information. The information is then displayed on various gauges.

For additional information, refer to the Troubleshooting Manual, "Cat Data Link Circuit-Test".

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