0315984 JOHNSON SEAL BAFFLE

ECM Identification Parameters
Equipment ID
The customer can assign an Equipment ID to identify the engine application.Engine Serial Number
The engine serial number is programmed into the ECM at the factory. The number is stamped on the engine information plate. If the ECM is replaced, the engine serial number must be programmed into the new ECM.ECM Serial Number
The ECM serial number is programmed into the ECM at the factory.Software Group Part Number
Part number of the flash file that is currently installed in the ECM.Software Group Release Date
Release date of the flash file that is currently installed in the ECM.Software Group Description
Description of the application for the flash file that is currently installed in the ECM.Air/Fuel Ratio Control
Before the initial start-up, a current gas analysis is required. Periodic gas analyses are also recommended. Use the Cat Software, LERW4485, "Gas Engine Rating Pro (GERP)" to calculate the fuel properties to input in the ECM.Note: Use Cat GERP Software, LERW4485, "Gas Engine Rating Pro (GERP)" to calculate the fuel properties. Improper programming of the air/fuel ratio control can result in damage to the engine.GERP also contains information that is related to engine performance.Speed Control
Low Idle Speed
Program this parameter to the desired low idle rpm.Engine Acceleration Rate
This parameter controls the rate for engine response to a change in the desired engine speed. For example, the engine can be programmed to accelerate at a rate of 50 rpm per second when the "Idle/Rated" switch is turned to the "Rated" position.This parameter is also used for the rate of deceleration.Maximum Engine High Idle Speed
Program this parameter to the desired maximum high idle rpm.The actual high idle speed is regulated by the desired speed input. The regulation is linear in proportion to the desired speed input. An input of 0 percent results in the minimum high idle rpm and an input of 100 percent results in the maximum high idle rpm.Minimum Engine High Idle Speed
Program this parameter to the desired minimum high idle rpm.The actual high idle speed is regulated by the desired speed input. The regulation is linear in proportion to the desired speed input. An input of 0 percent results in the minimum high idle rpm and an input of 100 percent results in the maximum high idle rpm.The "Minimum High Idle Speed" parameter and the "Maximum High Idle Speed" parameter determine the slope of the desired speed input.Governor (Proportional) Gain Percentage
This parameter is used in determining the rate of response to an engine load. Refer to Testing and Adjusting, "Engine Governing - Adjust" for the adjustment procedure.Governor (Integral) Stability Percentage
The adjustment of "Governor Stability Factor" dampens the response of the actuator to changes in the load and speed. Increasing this value provides less damping. Decreasing the value provides more damping. To reduce the governor overshoot, decrease the value. To reduce governor undershoot, increase the value. Refer to Testing and Adjusting, "Engine Governing - Adjust" for the adjustment procedure.Start/Stop Control
Engine State Control Input Configuration
Use this parameter to select the type of input signal that is used for the start/stop control.Starting System #1 Type
This parameter defines the type of starting system that has been installed on the engine.Crank Terminate RPM
The ECM disengages the starting motor when the engine speed exceeds the programmed "Crank Terminate RPM". This parameter is preset at the factory and this value should be sufficient for all applications.Engine Purge Cycle Time
The "Engine Purge Cycle Time" parameter is the duration of time for the engine to crank without fuel or spark during the crank cycle. The "Engine Purge Cycle Time" parameter allows any unburned fuel to exit through the exhaust before the fuel and the ignition are enabled.Cycle Crank Time
The "Cycle Crank Time" parameter is the amount of time for activation of the starting motor, the ignition, and the gas shutoff valve during start-up. If the engine does not start within the specified time, the attempt to start is suspended for a rest cycle. The rest cycle is also equal to the "Cycle Crank Time".Crank Duration
This parameter defines the maximum amount of time for an attempt to start the engine. The engine will activate the starting motors for no longer than the duration that is defined in this parameter during a single attempt.Driven Equipment Delay Time
The ECM accepts an input from the driven equipment that indicates when the equipment is ready for operation. When the input circuit is grounded, the driven equipment is ready. The ECM will not start the engine until this input is grounded.The ECM can be programmed to wait for a certain period after receiving a start command before starting the engine. This delay allows the driven equipment to get ready for operation.When the ECM receives a start command, the ECM will wait for the amount of time that is programmed into the "Driven Equipment Delay Time". If the "Driven Equipment Delay Time" elapses and the input circuit wiring is not grounded, an event code is activated. The engine will not start.If the "Driven Equipment Delay Time" parameter is programmed to "0", the delay is disabled.Engine Speed Drop Time
This parameter is activated when the ECM receives the signal for stopping the engine. This input ensures the shutdown in case the Gas Shutoff Valve (GSOV) fails to close.After the cooldown period has elapsed, the ECM removes power from the GSOV. The fuel is shut off from the engine. The ignition continues until the engine speed drops below 40 rpm. If the engine rpm does not drop at least 100 rpm within the programmed drop time, the ECM terminates the ignition. The ECM issues an emergency stop.Cooldown Duration
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