C15 and C18 Petrolem Generator Set Engines Caterpillar


Configuration Parameters

Usage:

C15 115
System configuration parameters are parameters that are configured to specify the engine's emissions levels, the power rating, and the specific application. Default values for the parameters are programmed at the factory. Some parameters may be changed in order to equip the engine for a specific application. The system configuration parameters must be reprogrammed if the Electronic Control Module (ECM) is replaced. It is not necessary to reprogram the system configuration parameters if you update the ECM flash file. Certain configuration parameters are stamped into the engine information plate.

Note: If the parameters that are protected with the factory passwords are changed, the Caterpillar warranty may be voided.

Parameter Descriptions

Rating Number

The rating number corresponds to the selected set of performance maps that has been selected for this application. There may be more than one set of performance maps that are available for this engine. All of the maps are resident in the flash file for the engine.

Rated Frequency

The line frequency of the generator set

Rated Engine Speed

The optimum speed of the engine

Rated Real Genset Power

The output power of the generator set in kilowatts

Rated Apparent Genset Power

The kVA rating of the generator set

Rating Configuration

The performance maps in the software

Test Spec

This is the engine's "Test Specifiction Number". Use this number to retrieve data that is related to the engine's specifications from the Technical Marketing Information System (TMI). The following information can be retrieved from TMI:

  • "As shipped consists"

  • "Engine test specifications"

  • "Systems data"

  • "Physical data"

  • "Gasket kit data"

  • "Reman parts"

  • "Performance data"

A link to TMI Web can be found on the web site for the Service Information System (SIS).

Equipment ID

This parameter allows the customer to enter a description into the ECM in order to identify the engine's application. A maximum of 17 characters can be entered in the field.

Engine Serial Number

The engine serial number must be programmed to match the engine serial number that is stamped on the engine information plate. The engine serial number is not preprogrammed into a replacement ECM.

ECM Serial Number

The serial number of the ECM that is stored in the ECM memory

Software Group Part Number

The part number of the flash file that is currently installed in the ECM

Software Group Release Date

The release date of the flash file that is currently installed in the ECM

Software Group Description

The description of the application for the flash file that is currently installed in the ECM

Total Tattletale

The total tattletale counts the number of changes to system parameters.

Engine Accel. Rate

This parameter defines the maximum rate of engine acceleration.

Low Idle Speed

This parameter defines the low idle rpm of the engine.

Engine Speed Droop

This parameter enables the engine to be operated in a load sharing system.

Droop/Isochronous Switch Enable

This parameter defines the installation status of a switch that is used to select droop or isochronous mode.

Droop Mode Selection

This parameter allows the customer to select droop or isochronous mode.

Ether Control

This parameter defines the installation status of an ether starting aid for the engine.

Engine Oil Temperature Sensor Installation Status

This parameter defines the installation status of an engine oil temperature sensor.

Desired Speed Input Configuration

This parameter defines the type of signal that is used for throttle control. This parameter will be used while a valid signal is present at the expected input.

The following input types are available:

"PWM" - A Pulse Width Modulated signal (PWM) is received via terminal P1-66 at the ECM connector.

"CAN Input" - A J1939 signal is received via the CAN data link.

"0 - 5 VDC" - An analog signal is received via terminal P1-17 at the ECM connector.

Secondary Desired Speed Input Configuration

This parameter defines the type of signal that is used as a secondary throttle control. If the signal that is defined for Desired Speed Input Configuration becomes unavailable, the ECM will revert to this type of signal for the throttle control. Refer to "Desired Speed Input Configuration" for the input types that are available.

Fuel Enable Input Configuration

This parameter allows the selection for the type of input that is used to enable the fuel for the engine.

Secondary Fuel Enable Input Configuration

This parameter sets the installation status of a secondary switch that can be used to enable the fuel for the engine.

Fuel Filter Differential Pressure Switch Configuration

This parameter sets the installation status of a fuel filter differential pressure switch for the engine.

Emergency Shutdown Override Switch Installation Status

This parameter sets the installation status of an engine shutdown override switch.

Emergency Shutdown Override Switch Configuration

This parameter sets the configuration of an engine shutdown override switch.

FLS

"FLS" is a parameter that represents the fuel system adjustment that was made at the factory in order to fine tune the fuel system to the engine. The correct value for this parameter is stamped on the engine information plate. Only change this value if the engine is rerated or if a new ECM has been installed. Factory passwords are required to change this parameter.

FTS

"FTS" is another parameter that represents a fuel system adjustment that was performed at the factory in order to fine tune the fuel system to this engine. Only change this value if the engine is rerated or if a new ECM has been installed. Factory passwords are required to change this parameter.

Governor Gain Factor

This parameter is used in determining the engine's rate of response to an engine load.

Governor Minimum Stability Factor

This parameter is used by the ECM to offset the steady state speed error when the steady state speed error is less than 20 rpm.

Governor Maximum Stability Factor

This parameter is used by the ECM to offset the steady state speed error when the steady state speed error is greater than 20 rpm.

Crank Terminate Speed

This parameter is used to define the desired engine speed during engine cranking.

Digital Speed Control Min Speed

This parameter is used to configure the engine speed below the rated speed of the engine.

Digital Speed Control Max Speed

This parameter is used to configure the engine speed above the rated speed of the engine.

Parameter Table

Table 1
System Configuration Parameters 
Parameter  Available Range or Options  Default  Required Password 
Selected Engine Ratings 
Rating Number  Software Dependent  None 
Rated Frequency  Software Dependent  Read Only(1) 
Rated Engine Speed  Software Dependent  Read Only(1) 
Rated Real Genset Power  Kilowatts (if applicable)  Rated power  Read Only(1) 
Rated Apparent Genset Power  Kilowatts (if applicable)  Rated power  Read Only(1) 
Rating Configuration  Software Dependent  Read Only(1) 
Test Spec  Software Dependent  Read Only(1) 
ECM Identification Parameters 
Equipment ID  17 alphanumeric characters  Blank  Customer 
Engine Serial Number  0XX00000 or XXX00000  Blank  Factory 
ECM Serial Number  Hardware Dependent  Blank  Read Only(1) 
Software Group Part Number  Software Dependent  Read Only(1) 
Software Group Release Date  Software Dependent  Read Only(1) 
Software Group Description  Software Dependent  Read Only(1) 
Security Access Parameters 
Total Tattletale  0 to 65535  Read Only(1) 
Engine/Gear Parameters 
Engine Accel. Rate  5 - 2000 rpm/sec  500  Customer 
Low Idle Speed  600 to 1200 rpm  1100  Customer 
Engine Speed Droop  0.0 - 8.0 %  3.0 %  Customer 
Droop/Isochronous Switch Enable  Enabled or Disabled  Enabled  Customer 
Droop mode selection  Droop or Isochronous  Isochronous  Customer 
I/O Configuration Parameters 
Ether Control  Installed or Uninstalled  Installed  Customer 
Engine Oil Temperature Sensor Installation Status  Installed or Uninstalled  Uninstalled  Customer 
Desired Speed Input Configuration  PWM
CAN Input
0 - 5 VDC 
CAN Input  Customer 
Secondary Desired Speed Input Configuration(2)  PWM
CAN Input
0 - 5 VDC
Unistalled 
Unistalled  Customer 
Fuel Enable Input Configuration  Switch
J1939 
Switch  Customer 
Secondary Fuel Enable Input Configuration  Enabled or Disabled  Enabled  Customer 
Fuel Filter Differential Pressure Switch Configuration  Uninstalled
Normally Open
Normally Closed 
Uninstalled  Customer 
Emergency Shutdown Override Switch Installation Status  Installed or Uninstalled  Uninstalled  Customer 
Emergency Shutdown Override Switch Configuration  Switch to Ground
CAN Input 
Switch to Ground  Customer 
System Parameters 
FLS  Programmed at the Factory  Factory 
FTS  Programmed at the Factory  Factory 
Governor Gain Factor  0 - 65,535  26,214  Customer 
Governor Minumum Stability Factor  0 - 65,535  1049  Customer 
Governor Maximum Stability Factor  0 - 65,535  2097  Customer 
Crank Terminate Speed  200 to 700 rpm  400  Customer 
Digital Speed Control Min Speed  0 to 150 rpm  125  Customer 
Digital Speed Control Max Speed  0 to 150 rpm  125  Customer 
(1) This parameter can be viewed only. No changes are allowed.
(2) The configuration of this parameter is dependent on the configuration of the throttle controls for the application. Refer to Troubleshooting, "Speed Control - Test" for additional information.

Parameter Worksheet

Table 2
Parameter Worksheet 
Engine Parameters 
Equipment ID   
Engine Serial Number   
ECM Serial Number   
Software Group Part Number   
Software Group Release Date   
Software Group Description   
FLS   
FTS   
Total Tattletale   
Engine Accel. Rate   
Low Idle Speed   
Engine Speed Droop   
Droop/Isochronous Switch Enable   
Droop mode selection   
Ether Control   
Engine Oil Temperature Sensor Installation Status   
Desired Speed Input Configuration   
Secondary Desired Speed Input Configuration   
Fuel Enable Input Configuration   
Secondary Fuel Enable Input Configuration   
Fuel Filter Differential Pressure Switch Configuration   
Emergency Shutdown Override Switch Installation Status   
Emergency Shutdown Override Switch Configuration   
Governor Gain Factor   
Governor Minumum Stability Factor   
Governor Maximum Stability Factor   
Crank Terminate Speed   
Digital Speed Control Min Speed   
Digital Speed Control Max Speed   
Injector Serial Numbers 
Cylinder 1   
Cylinder 2   
Cylinder 3   
Cylinder 4   
Cylinder 5   
Cylinder 6   
Information from the Engine Information Plate 
Engine Serial Number   
FLS   
FTS   

Note: Compare the FLS and the FTS from the ECM with the values that are listed on the engine information plate. Use of incorrect parameters could cause damage to the engine. The use of the wrong parameters may also void the Caterpillar warranty or the emission certification for the engine.

Caterpillar Information System:

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