SPACER 6I0977 - Caterpillar

Table 1 is a list of the parameters that can be configured for G3520B Industrial 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.
Table 1
Configuration Parameters for G3520B Industrial Engines    
Parameter    
Timing Control    
First Desired Timing    
Second Desired Timing    
Desired Engine Timing Offsett    
Air/Fuel Ratio Control    
Fuel Quality    
Gas Specific Gravity    
Fuel Specific Heat Ratio    
Emissions Feedback Mode Configuration    
Desired Engine Exhaust NOx Level Setting    
Air/Fuel Proportional Gain    
Air/Fuel Integral Gain    
Speed Control    
Low Idle Speed    
Minimum Engine High Idle Speed    
Maximum Engine High Idle Speed    
Engine Acceleration Rate    
Desired Speed Input Configuration    
Governor Type Setting    
Engine Operation    
Engine Speed Droop    
Governor Gain Factor    
Governor Stability Factor    
Governor Compensation Factor    
Auxiliary Proportional Governor Gain 1    
Auxiliary Integral Governor Gain 1    
Auxiliary Derivative Governor Gain 1    
Start/Stop Control    
Driven Equipment Delay Time    
Crank Terminate RPM    
Engine Purge Cycle Time    
Cooldown Duration    
Cycle Crank Time    
Engine Overcrank Time    
Engine Speed Drop Time    
Engine Prelube    
Engine Prelube Time Out Period    
Engine Postlube Duration    
Monitoring and Protection    
High Inlet Air Temp Engine Load Set Point    
Module Information    
Engine Serial Number    
Equipment ID    
Customer Password #1    
Customer Password #2    
Total Tattletale    Timing Control
The timing parameters allow the customer to program the timing electronically of the ignition spark to meet the needs for specific applications and installations. The desired timing value can be changed while the engine is running or while the engine is stopped.Note: The actual ignition timing at a given instance may vary from the desired timing value. This variance is due to variations in the engine speed or in the detonation."First Desired Timing"
The "First Desired Timing" is determined with the methane number of the primary fuel that is used. Use the Engine Performance Sheet, "Fuel Usage Guide". The ECM selects the "First Desired Timing" when the timing select switch creates an open circuit for terminal J1-20 at the master ECM."Second Desired Timing"
The "Second Desired Timing" is determined with the methane number of the alternate fuel that is used and the Engine Performance Sheet, "Fuel Usage Guide". The ECM selects the "Second Desired Timing" when the timing select switch creates a short circuit to ground for terminal J1-20 at the master ECM.If an alternate fuel is not used, enter the same timing value for the "Second Desired Timing" parameter that is entered in the "First Desired Timing" parameter."Desired Engine Timing Offset"
The feature provides the offset of engine ignition timing to compensate for timing errors. The errors are due to resistances in the electrical circuitry and stackup of mechanical tolerances.This parameter provides a manual method that will allow additional timing adjustment to