WASHER-SEALING 8N4410 - Caterpillar

Use this procedure if the following diagnostic code is active.
Table 1
J1939 Code and Description Comments
630-2
Calibration Memory : Erratic, Intermittent, or Incorrect The engine Electronic Control Module (ECM) detects that one or more of the programmable parameters have not been programmed.
The ECM may use a default torque map or the ECM may limit the engine to low idle.
The code is active only. The system configuration parameters must be programmed when the application is installed. Program parameters before the initial engine start-up. Incorrect programming of parameters may lead to complaints about performance and/or to engine damage.Data from a gas analysis is required for determining the correct settings for the fuel quality and for the specific gravity of the gas. The data must be entered into the Caterpillar Software, LERW4485, "Gas Engine Rating Pro (GERP)".If the Electronic Control Module (ECM) is replaced, the appropriate parameters must be copied from the original ECM. Copying can be done with the "Copy Configuration" feature of Cat® Electronic Technician (ET). Alternatively, the settings can be recorded on paper and then programmed into the new module.Certain parameters are unique for each engine application. Table 2 is a list of the parameters that can be configured for G3500 Standby Engines. The parameters are programmed into the Electronic Control Module (ECM) via the Caterpillar Electronic Technician (ET). The values of the parameters can be viewed on the "Configuration" screen of Cat ET.Refer to Systems Operation/Testing and Adjusting, "Electronic Control System Parameters" for the descriptions of the parameters.
Changing the parameters during engine operation can cause the engine to operate erratically, resulting in engine damage.Unless the instructions are different, only change the settings of the parameters when the engine is STOPPED.
Table 2
Configuration Parameters for G3500 Standby Engines
Timing Control
"First Desired Timing" (Non-EPA Arrangement Only)
Air/Fuel Ratio Control
"Air/Fuel Ratio Proportional Gain Percentage"
"Air/Fuel Ratio Integral Gain Percentage"
"Emissions Feedback Mode Configuration"
"Desired Engine Exhaust Nox Setting" (Non-EPA Arrangement Only)
Gaseous Fuel Parameters
"Fuel Quality Input Type Configuration" (1)
"Fuel Quality Sensor LHV Lower Limit" (1)
"Fuel Quality Sensor LHV Upper Limit" (1)
"Fuel Quality"
"Gas Specific Gravity"
"Fuel Specific Heat Ratio"
Speed Control
"Low Idle Speed"
"Minimum Engine High Idle Speed"
"Maximum Engine High Idle Speed"
"Engine Acceleration Rate"
"Desired Speed Input Configuration"
"Secondary Desired Speed Input Configuration"
"Governor Type Setting" (Non-EPA Arrangement Only)
"Engine Speed Droop" (Non-EPA Arrangement Only)
Governor Gain Parameters
"Governor (Proportional) Gain Percentage"
"Governor (Integral) Stability Percentage"
Start/Stop Control
"Engine State Control Input Configuration"
"Engine State Control Input Default Value"
"Starting System #1 Type"
"Crank Terminate RPM"
"Engine Purge Cycle Time"
"Engine Speed Drop Time"
"Cooldown"
"Cycle Crank Time"
"Crank Duration"
Engine Prelubrication
"Engine Pre-Lube"
"Engine Pre-Lube Time Out Period" (Non-EPA Arrangement Only)
"Engine Ready to Start Pre-Lube Duration" (Non-EPA Arrangement Only)
"Engine Continuous Pre-Lube Duration"
"Engine Continuous Pre-Lube Interval"
Monitoring and Protection
"Impending Shutdown Delay Enable Status" (2)
"Impending Shutdown Delay Time" (2)
Power Monitoring
"Generator Out Power Primary Input Type Configuration"
"Generator Out Power Primary Input Minimum Range"
"Generator Out Power Primary Input Maximum Range"
"Generator Out Power Secondary Input Type Configuration"
"Generator Out Power Secondary Input Minimum Range"
"Generator Out Power Secondary Input Maximum Range"
"Engine Driven Accessory Load Configuration"
"Generator Efficiency"
Information for the ECM
"Equipment ID"
"Engine Serial Number"
"Customer Password #1"
"Customer Password #2"
"Total Tattletale"
"CAN Communication Protocol Write Security"
"CAN Communication Protocol Read Security"
(1) This parameter applies to engines