Engine Monitoring System (G3516B)

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Bienvenido: r180axg

Producto: GENERATOR SET

Modelo: G3516B GENERATOR SET ZBC

Configuración: G3516B Generator Set ZBC00001-UP

Localización y Solución de ProblemasG3516B EnginesNúmero de medio -RENR2270-08 Fecha de publicación -01/09/2012 Fecha de actualización -04/09/2012

i02113046

Engine Monitoring System

SMCS - 7490

The Electronic Control Module (ECM) monitors the operating parameters of the engine. The master ECM can initiate responses if a specific engine parameter exceeds an acceptable range. Two possible responses may be available for each parameter: "WARNING" and "SHUTDOWN". Some of the responses are not available for some of the parameters. Use the Caterpillar Electronic Technician (ET) to perform the following activities:

• Select the available responses.

• Program the level for monitoring.

• Program delay times for each response.

The default settings for the parameters are programmed at the factory. To accommodate unique applications and sites, the parameters may be reprogrammed with Cat ET. The screens of Cat ET provide guidance for the changing of trip points.

Note: Some of the parameters are protected by factory passwords. Other parameters can be changed with customer passwords.

Changing the Settings of the Monitoring System

Use the following procedure to change settings of the parameters:

1. Use Cat ET and select the "Service/Monitoring System" screen.

2. Highlight the desired parameter. Then click on the "Change" button in the lower left corner of the screen.

The "Change Monitor System" screen will appear.

Página 1 de 9G3516B Generator Set ZBC00001-UP(SEBP3863 - 28) - Documentación

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3. Change the "State" to "On" or "Off".

4. Set the "Trip Point" and the "Delay Time" according to the "Allowed Values" in the lower half of the screen.

5. Click the "OK" button.

If a password is required, the "Enter Passwords" screen will appear. Enter the correct passwords and then click the "OK" button.

The new settings will be effective immediately.

Monitoring Parameters

"Low System Voltage"

The trip point for this parameter is set at the factory. The trip point cannot be changed. This parameter is always ON. This parameter cannot be turned off. If the system voltage decreases to the trip point or if the system voltage goes below the trip point, the ECM will generate a warning or a shutdown.

"High Engine Coolant Temperature"

The trip points for this parameter can be programmed by the customer. The shutdown response is always ON. The shutdown response cannot be turned off. If the engine coolant temperature increases to the trip point or if the engine coolant temperature exceeds the trip point, the ECM will generate a warning or a shutdown.

"Low Engine Coolant Temperature"

The trip point for this parameter can be programmed by the customer. If the engine coolant temperature decreases to the trip point or if the engine coolant temperature goes below the trip point, the ECM will generate a warning.

"Engine Overspeed"

The trip point for this parameter is set at the factory. This parameter is always ON. This parameter cannot be turned off. If the engine speed increases to the trip point or if the engine speed exceeds the trip point, the ECM will activate an engine shutdown. A typical trip point is 118 percent of the engine's rated speed for generator set applications.

"High Engine Oil Temperature"

The trip point for a warning for this parameter can be programmed by the customer. The trip point for a shutdown is set at the factory. This parameter is always ON. This parameter cannot be turned off. If the engine oil temperature increases to the trip point or if the engine oil temperature exceeds the trip point, the ECM will generate a warning or a shutdown.

"High Oil Filter Differential Pressure"

The trip point for a warning for this parameter can be programmed by the customer. The trip point for a shutdown is set at the factory. This parameter is always ON. This parameter cannot be turned off. If the


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engine oil filter differential pressure increases to the trip point or if the engine oil filter differential pressure exceeds the trip point, the ECM will generate a warning or a shutdown.

"Low Oil Filter Differential Pressure"

The trip point for a warning for this parameter can be programmed by the customer. The trip point for a shutdown for this parameter is set at the factory. This parameter is always ON. This parameter cannot be turned off. If the engine oil filter differential pressure decreases to the trip point or if the engine oil filter differential pressure goes below the trip point, the ECM will generate a warning or a shutdown.

"High Fuel Temperature"

The trip point for this parameter can be programmed by the customer. If the fuel temperature increases to the trip point or if the fuel temperature exceeds the trip point, the ECM will generate a warning.

"Low Fuel Pressure"

The trip point for this parameter can be programmed by the customer. If the fuel pressure decreases to the trip point or if the fuel pressure goes below the trip point, the ECM will generate a warning.

"High Engine Oil to Engine Coolant Differential Temperature"

The trip point for a warning for this parameter can be programmed by the customer. The trip point for a shutdown for this parameter is set at the factory. The shutdown response is always ON. The shutdown response cannot be turned off. If the differential temperature of the jacket water and the engine oil increases to the trip point or if the differential temperature of the jacket water and the engine oil exceeds the trip point, the ECM will generate a warning or a shutdown.

"Low Gas Fuel Differential Pressure"

The trip point for this parameter can be programmed by the customer. If the fuel differential pressure decreases to the trip point or if the fuel differential pressure goes below the trip point, the ECM will generate a warning.

"High Gas Fuel Differential Pressure"

The trip point for this parameter can be programmed by the customer. If the fuel differential pressure increases to the trip point or if the fuel differential pressure exceeds the trip point, the ECM will generate a warning.

"High System Voltage"

The trip point for this parameter is set at the factory. The trip point cannot be changed. This parameter is always ON. This parameter cannot be turned off. If the system voltage increases to the trip point or if the system voltage exceeds the trip point, the ECM will generate a warning.

Trip Points of the Engine Load for High Inlet Air Temperature

The trip points for these parameters can be programmed by the customer. The shutdown response is always ON. The shutdown response cannot be turned off. This feature provides a trip point between high engine load and low engine load. The trip point is used for events that involve high inlet air temperature. The trip


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point for the events is based on the engine load. The possible responses of the system include a warning or a shutdown.

If the load is greater than the trip point, the trip point for the "High Inlet Air Temperature at High Engine Load" event is used for the logging of the high inlet air temperature.

If the load is less than the trip point, the trip point for the "High Inlet Air Temperature at Low Engine Load" event is used for the logging of the high inlet air temperature.

"High Inlet Air Temperature at Low Engine Load"

The "Service/Configuration" screen of Cat ET defines the "High Inlet Air Temp Engine Load Set Point". The ECM can activate a warning or a shutdown if the inlet air temperature increases to the trip point or if the inlet air temperature exceeds the trip point during the low load operation that is defined.

"High Inlet Air Temperature at High Engine Load"

The "Service/Configuration" screen of Cat ET defines the "High Inlet Air Temp Engine Load Set Point". The ECM can activate a warning or a shutdown if the inlet air temperature increases to the trip point or if the inlet air temperature exceeds the trip point during the high load operation that is defined.

"High Fuel Pressure"

The trip point for this parameter can be programmed by the customer. The ECM will activate a warning if the fuel pressure increases to the trip point or if the fuel pressure exceeds the trip point.

Default Settings of the Monitoring System

Examples of the default settings for the parameters are listed in Table 1. The values may have changed. Use the Cat ET to determine the programming for your engine. Many of the items can be reprogrammed in order to accommodate the requirements of individual sites.

Table 1

Default Settings of the Programmable Monitoring System

Parameter Event Code

System Response State Trip

Point Delay in Seconds

Security Level

Password Range

Range of the Delay

in Seconds

"Low System Voltage"

E043 (1)

Warning On (1)

20 volts 20

This item cannot be programmed.

E042 (3)

Shutdown 18 volts 10

"High Engine Coolant Temperature"

"E017 (1)"

Warning On 109 °C

20 Customer 80 to 129 °C

1 to 60

"E016 (3)"

Shutdown On (1) 113 °C


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"Engine Overspeed"

E004 (3)

Shutdown

On (1)

1770 rpm 0 Factory

1200 to 2125 rpm

0


E020 (1)

Warning 102 °C

20

Customer 85 to 102 °C

1 to 60

E019 (3)

Shutdown 104 °C Factory

85 to 104 °C


E129 (1)

Warning 103 kPa

10

Customer 80 to 138 kPa E130

(3) Shutdown 138

kPa Factory


E127 (1)

Warning 35 kPa Customer

5 to 80 kPa E128

(3) Shutdown 5 kPa Factory


E223 (1)

Warning On

60 °C 20

Customer

0 to 60 °C

"Low Fuel Pressure"

E053 (1)

105 kPa 10

100 to 135 kPa


E337 (1)

On (1)

14 °C

20 0 to 20 °C E337

(3) Shutdown 20 °C Factory

"Low Gas Fuel Differential Pressure"

E864 (1)

Warning

On

5 kPa

10 Customer 0 to 35 kPa "High Gas Fuel

Differential Pressure"

E865 (1)

35 kPa

"High System Voltage"

E050 (1) On (1)

34 volts 20 This item cannot be

programmed.

"High Inlet Air Temperature at Low Engine Load"

E027 (1) On 69 °C 20 Customer 32 to

85 °C 1 to 60

E026 (3)

Shutdown On (1) 73 °C 32 to 100 °C

On


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"High Inlet Air Temperature at High Engine Load"

E027 (1)

Warning 53 °C

E026 (3)

Shutdown On (1) 57 °C

"High Fuel Pressure"

E096 (1)

Warning On 135 kPa 10

100 to 135 kPa

( 1 ) This parameter is permanently active. The parameter cannot be turned off.

Separate timers are used in the ECM for each response that is associated with a parameter. If a trip point is reached, the timer for that event is started.

For example, the warning for "High Engine Coolant Temperature E017 (1)" can be set to 95 °C with a five second delay. The timer starts counting if the coolant temperature reaches 95 °C. If the temperature is not reduced to less than 95 °C within five seconds, the event becomes active and the event is logged.

Conditions for Parameters

Some of the programmable parameters are dependent on the status of an ECM output before the parameters are allowed to function. Some of the parameters are allowed to function after the crank terminate relay has been energized for more than 30 seconds. Other parameters are allowed to function after the output for the fuel control relay is energized. Some parameters are not dependent upon any conditions.

The conditions are designed to eliminate false events during start-up if the customer has programmed a delay time to zero. The conditions are listed in Table 2.

Table 2

Conditions for Activation for Monitoring the Parameters

Parameter Condition

"Low System Voltage" None

"High Engine Coolant Temperature" The crank terminate relay is energized for more than 30 seconds.

"Low Engine Coolant Temperature" None

"Engine Overspeed" None


The crank terminate relay is energized for more than 30 seconds.




"Low Fuel Pressure" The fuel control relay is energized.


The crank terminate relay is energized for more than 30 seconds.

"Low Gas Fuel Differential Pressure" The fuel control relay is energized.


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"High Gas Fuel Differential Pressure"

"High System Voltage" None

"High Inlet Air Temperature at Low Engine Load" The crank terminate relay is energized for more than 30 seconds. "High Inlet Air Temperature at High Engine Load"

"High Fuel Pressure" The fuel control relay is energized.

Use care when you program the trip points and the delay times. Ensure that the response of the ECM is correct for the application. The monitoring system will accept any settings within the ranges.

If the trip point for a shutdown is programmed to activate before the trip point for a warning, the engine will shut down and the warning will not be activated.

Programmable Parameters of the Integrated Temperature Sensing Module

The Integrated Temperature Sensing Module (ITSM) monitors the temperatures of the cylinder exhaust ports, the inlets of the turbocharger turbine, and the outlets of the turbocharger turbines.

If a temperature exceeds an acceptable range, the ITSM can initiate a "WARNING" or "SHUTDOWN". Both of the responses are available for all of the parameters. Use Cat ET to perform the following activities:

• Select the available responses.

• Program the level for monitoring.

• Program delay times for each response.

Note: To initiate the responses, the ITSM sends commands to the ECM via the Cat Data Link. If the connection between the ITSM and the ECM is not correct, the ITSM cannot initiate any response.

The default settings for the parameters are programmed at the factory. To accommodate unique applications and sites, the parameters may be reprogrammed with Cat ET. The screens of Cat ET provide guidance for changing trip points.

Table 3 lists default examples of the values for the parameters. However, the values may have changed. Use Cat ET to determine the programming for your engine. The items can be reprogrammed in order to accommodate the requirements of individual sites.

Use care when you program the trip points and the delay times. Ensure that the response of the ITSM is correct for the application. The monitoring system will accept any setting within the ranges.

If the trip point for a shutdown is programmed to activate before the trip point for a warning, the engine will shut down and the warning will not be activated.

Table 3

Default Settings for the Integrated Temperature Sensing Module


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Parameter Event Code

System Response

State Trip Point

Delay in Seconds

Security Level

Password

Range Range of the Delay

in Seconds

"High Exhaust Temperature"

E801 (1) through E820 (1)

Warning

On

655 °C

30

Customer

100 to 665 °C 1 to 60

E801 (3) through E820 (3)

Shutdown 665 °C

"Exhaust Port Temperature High Deviation"

E821 (1) through E840 (1)

Warning 50 °C 60 10 to 50 °C 1 to 60

E821 (3) through E840 (3)

Shutdown 200 °C 10 100 to

200 °C 1 to 10

"Exhaust Port Temperature Low Deviation"

E841 (1) through E860 (1)

Warning 50 °C 60 10 to 50 °C 1 to 60

E841 (3) through E860 (3)

Shutdown 200 °C 10 10 to

200 °C 1 to 10

"High Turbo Turbine Inlet Temperature"

E245 (1) E246 (1) Warning 710 °

C 30

100 to 710 °C

1 to 60 E245 (3) E246 (3)

Shutdown 730 °C

100 to 730 °C

"High Turbo Turbine Outlet Temperature"

E243 (1) E244 (1) Warning 615 °

C 60 100 to

625 °C 1 to 60 E243 (3) E244 (3)

Shutdown 625 °C

Separate timers are used in the ITSM for each response that is associated with a parameter. If a trip point is exceeded, the timer for that event is started.

For example, the warning for the "High Exhaust Temperature" (E801 (1)) can be set to 655 °C with a 30 second delay. The timer starts counting if the exhaust port temperature of the number 1 cylinder reaches 655 °C. If the temperature is not reduced to less than 655 °C within 30 seconds, the event becomes active and the event is logged.


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Engine Monitoring System (G3516B)

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