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| Illustration 1 | g01233459 |
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EMCP 3 control system panel (1) Display screen (2) Yellow warning lamp (3) Red shutdown lamp (4) Alarm acknowledge/silence key (5) Lamp test key (6) Stop key (7) Auto key (8) Run key (9) Escape key (10) Enter key (11) Right key (12) Down key (13) Up key (14) Left key (15) Engine overview key (16) AC overview key | |
The engine and generator set points are programmed in the EMCP 3 at the factory. The set points that are stored in the EMCP 3 must match the specified set points of the particular generator set. The set points, which are programmable, affect the following:
- Proper operation of the engine
- Serviceability of the engine
- The accuracy of the information that is shown on the display screen (1)
The set points may require modification when the EMCP 3 is moved from one engine to another engine. The set points may also require modification in order to satisfy the requirements of the installation.
The keys listed below are used for programming the EMCP 3 and navigating within the menu structure.
Reference: Refer to Systems Operation, "Electronic Control Module (Generator Set)" for a full explanation of the use of the function keys such as enter and escape. Refer to Systems Operation, "Electronic Control Module (Generator Set)" full explanation of the navigation keys such as scroll left, scroll right, scroll up, scroll down.
(9) Escape - Used to navigate up (backward) through the menu structure and to return from the data entry screens during set point programming.
(10) Enter key - Select a highlighted menu item or save a programmed value.
(11) Scroll Right key - During numeric data entry, choose the digit to edit. During certain setpoint adjustments, select or deselect a check box.
(12) Scroll Down key - Move down through the main menu or navigate within a list in order to highlight one of the items. Also used to decrement digits (0-9).
(13) Scroll Up key - Move up through the main menu or navigate within a list in order to highlight one of the items. Also used to increment digits (0-9).
(14) Scroll Left key - During numeric data entry, choose the digit to edit. During certain setpoint adjustments, select or deselect a check box.
Note: The following programming example is not intended as a standard or as a preferred method of use. The example is presented here only as an example of the logical flow for programming.
For consistency of terminology, a "normally closed" switch is a switch that is closed prior to installation, not being acted upon. A "normally open" switch is a switch that is open prior to installation not being acted upon. The example outlines the steps for wiring a low fuel level shutdown float switch to "Digital Input #3".
In this example, the "Active Low" configuration will be used. The example will assume the use of a normally open switch that closes when the fuel level drops to the low shutdown level. When the fuel level drops to the low shutdown level, the generator set shuts off. When the switch closes, the EMCP 3 sends a "Batt" signal to "Digital Input #3".
- Mount the switch in the desired location and then route and connect the wiring.
- Route a wire to the 70 pin connector on pin 54. This wire is for "Digital Input #3".
- Route a second wire to a battery negative point in the system.
- Connect the two wires to the contacts of the newly mounted switch.
- Select the appropriate digital input and the "Active" state for the mounted switch. Use the following steps to navigate to "DIGITAL INPUTS".
- At the "MAIN MENU" use the arrow keys and enter key to select "CONFIGURE".
- Use the arrow keys and enter key to select "SETPOINTS".
- Use the arrow keys and enter key to select "I/O".
- Use the arrow keys to select "DIGITAL INPUTS".
- Press the enter key. The available digital inputs will be displayed.
- Scroll through the available digital inputs until digital "Input #3" is highlighted, and then press the enter key.
- Press the enter key a second time. This action highlights the current configuration of the "Active" state for "Digital Input #3".
- Set the "Active" state to the "Active LOW" option using the scroll up or the scroll down keys. After the state has been set, then press the enter key in order to save the selection.
Note: The selection of "HIGH" or "LOW" for the Active state is based on the following:
- If a normally closed float switch is used, then set the option to "Active High". The normally closed float switch is open when the fuel level is below the switch. The active high relates to the voltage level of the digital input pin of the EMCP 3.
- If a normally open float switch is used, then set the option to "Active Low". The normally open float switch is closed when the fuel level is below the switch. The active low relates to the voltage level of the digital input pin of the EMCP 3.
- If a normally closed contact is used, then the voltage level of the digital input pin is pulled low when fuel is present. When the fuel level is below the switch, then the switch is activated and the contact opens. When the contact opens, that will allow the voltage level of the digital input pin to go high. This action indicates to the EMCP 3 that the switch has been operated.
- If a normally open contact is used, then the voltage level of the digital input pin is high when fuel is present. When the fuel level is below this switch, then the switch is activated and the contact closes. When the contact closes, the voltage level of the digital input pin will be pulled "low". The low voltage indicates to the EMCP 3 that the switch has been operated.
- Navigate to the "EVENT I/P FUNCTIONS SELECT" menu.
Note: Each press of the escape key backs up one level in the menu structure. The escape key can be pressed twice until the set points menu is highlighted and then the navigation can be completed.
- At the "MAIN MENU" use the arrow keys and enter key to select "CONFIGURE".
- Use the arrow keys and enter key to select "SETPOINTS".
- Use the arrow keys and enter key to select "EVENTS".
- Use the arrow keys and enter key to select "EVENT I/P FUNCTIONS SELECT".
Note: Each event input function corresponds to a specific digital input. For example, "Event Input Function #1" corresponds to "Digital Input #3". Therefore, "Event Input Function #2" corresponds to "Digital Input #4", and so on.
- Select "Event Input Function #1", and then press the enter key in order to configure the settings. Use the navigation keys to scroll through the selections until the setting that is to be configured is highlighted. Then press the enter key again in order to display the current value for that setting. The settings that can be configured include:
- Active state
- Time delay
- Suspect Parameter Number
- Failure Mode Identifier
- Set the active state. The active state appears in the menu as "ACTIVE STATE CFG". The active state should always be set to "Active HIGH".
- Set the time delay. The time delay appears in the menu as "EVENT DELAY TIME". If a time delay is desired, perform the following steps in order to adjust the value to the desired number of seconds.
- Press the enter key (10) in order to highlight the value.
- Using the scroll right and scroll left navigation keys, highlight each number that is to be changed. Once the number is highlighted, use the navigation keys in order to change the selected value to the desired value.
- Press the enter key again in order to save the new value.
- Set the suspect parameter number (SPN). This value appears in the menu as "SUSPECT PARM NUM/".
- Press the enter key.
- Press the scroll down key and navigate to the "LEVELS" menu and then press the enter key in order to select the menu.
- Using the scroll down key, navigate to the"FUEL LEVEL" parameter, and then press the enter key in order to select this parameter. This setting will generate an SPN of "96".
- Set the failure mode indicator (FMI). This value appears in the menu as "FAILURE MODE ID".
- Using the scroll down key, navigate to the "LOW SHUTDOWN" parameter, and then press the enter key in order to select this parameter. This setting will generate an FMI of "1".
When the fuel level drops below the level of the float switch, "Digital Input #3" is connected to battery negative through the switch. The fuel level drop generates an SPN-96, with an FMI-1. The code is translated by the EMCP 3. The EMCP 3 will shut down the engine, turn on the shutdown LED, and broadcast the code on the J1939 data link. Any annunciator installed could be programmed to have a pair of LED indicators to detect this code and turn on the red LED.