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Engine

monitoringsystem

3500 engines

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ECM monitors parameters

and Initiate an action if a specific

operating parameter extends

outside an acceptable range

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ECM actions

Warning.

Derate . Shutdown.

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ET

Used to select desired action available for

ECM.

Used to program monitoring level.

Used to program delay time for each

action.

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Histogram

Displayed by the ET to show the trend of

performance for the engine.

Available for speed, load, lh exhausttemperature and rh exhaust temperature.

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Start enable out put :-

indicate the engine may crank.

Relay

energized

De-energized

No. of crank cycle reached

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Shut down notification

Provide indication when the engine control

is shutting down the engine i.e. relay is de-

energized.

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De-energizing the relay

Relay is de-energized if :-

Engine is shu t downby programmable

monitoring system Remote emergency stopswitch is activated

The customer communication module (CCM)

requested a normal shutdown. CCM request an emergency stopshu tdown.

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Engine is shutdown by over speed verify

feature.

Engine is in the off or stop state.

Personality module inter lock occurs.

Speeds drop below crank terminate

speed.

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Fuel consumption adjustment

Adjusting the total fuel consumption.

ECM replacement.

New ECM programming.

allow increment change.

Password.

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ECM hours increment adjustment :-

Adjusting the hour meter of ECM.

Allow the new ECM to be programmed to

display the correct no. of operating hours.

Allows only increment changes.

Need a password.

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ECM voltage

ECM warns operatorof low system voltage.

Voltage monitoring

Parameter Default

setting

Warningsetpoint

20 volts

Warning

delay

10 seconds

Hysteresis 2 volts

Security

level

No required

password

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After cooler coolant temperature

ForSCAC engines:-

WarningDerating

Shutdown

e.g. derate set point :102 degree c.

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Jacket water after coolingAbove 102 c for 5 sec warning.

*Above 107 c for 5 sec derating.

*Above 107 c for 5 sec shutdown.

*because customers prefer shut down forafter cooler coolant .

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Engine over speed

Warning.

Shutdown.

Setpoints depend on application and

engine .

Rating of 1200-1400.

Warning and shut down simultaneously.