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| Illustration 1 | g02118437 |
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(1) Display screen
(2) F4 Soft key (3) F3 Soft key (4) F2 Soft key (5) F1 Soft key (6) Control key (7) AC overview key (8) Engine overview key (9) Main menu (10) Warning Indicator lamp (yellow) (11) Alarms acknowledge key and silence key (12) Shutdown Indicator lamp (red) (13) Event reset key (14) Event log key (15) Run key (16) Auto key (17) Stop key (18) Escape key (19) Up key (20) Right key (21) OK key (22) Down key (23) Left key | |
The main component of the Electronic Modular Control Panel 4.3/4.4 ( EMCP 4.3/4.4) is the electronic control module (ECM). This section discusses the display, keys, and indicators on the control system panel of the ECM. The EMCP 4.3/4.4 panel is used for monitoring and controlling many of the generator set functions. Some of the functions include:
- Sending start and stop signals to the engine
- Providing visual and audible indications when warning or shutdown events occur
- Displaying engine information and AC generator set information
- Displaying Suspect Parameter Number (SPN) and Failure Mode Identifier (FMI) information for events
- Programming set points for the standard EMCP 4.3/4.4 (The set points for optional modules are set with the use of Cat ET.)
- Annunciator configuration is done within the EMCP 4.3/4.4
The following components can be found on the front panel of the ECM:
- Information Display
- Alarm Indicators
- Alarm Acknowledge/Silence Key
- Event Reset Key
- Function Keys
- Navigation Keys
- System Overview Keys
(1) Display Screen - Information from the EMCP 4 is displayed on the display screen. This screen is used for the following programming and display functions.
- Displaying AC parameter information of the generator set
- Displaying engine parameter information of the generator set
- Programming set points for the generator
- Displaying engine event information
- Displaying event codes from other modules
- Programming the display preferences of the EMCP 4.3/4.4
- Changing password levels of the EMCP 4.3/4.4
(10) Alarm Acknowledge/Silence Key - Pressing the alarm acknowledge/silence key will cause the horn relay output to turn off and silence the horn. Pressing the key will also cause any yellow or red flashing lights to turn off or to become solid depending on the active status of the alarms. The alarm acknowledge/silence key may also be configured to send out a global alarm silence on the J1939 Data Link which will silence horns on annunciators. However, other modules must be configured to listen to the global acknowledge.
(11) Event Reset Key - The event reset button will clear all inactive fault conditions.
Yellow Warning Light - The yellow warning light (10) is located directly above the alarm acknowledge/silence key (11). A flashing yellow light indicates that there are unacknowledged active warnings. A solid yellow light indicates that there are acknowledged warnings active. If there are any active warnings, the yellow light will change from flashing yellow to solid yellow after the alarm acknowledge/silence key is pressed. If there are no longer any active warnings, the yellow light will turn off after the alarm acknowledge/silence key is pressed.
Red Shutdown Light - The red shutdown (12) light is located directly above the event reset key (13). A flashing red light indicates that there are unacknowledged active shutdown events. A solid red light indicates that there are acknowledged shutdown events active. If there are any active shutdown events, the red light will change from flashing red to solid red after the alarm acknowledge/silence key is pressed. Any condition that has caused a shutdown event must be manually reset. If there are no longer any active shutdown events, the red light will turn off.
(2) F4 - Pressing the F4 key will enable the function that is described on the screen directly above this key. When this key is defined on screen to scroll up or down, the Scroll Up and Scroll Down keys will also function the same.
(3) F3 - Pressing the F3 key will enable the function that is described on the screen directly above this key. When this key is defined on screen to scroll up or down, the Scroll Up and Scroll Down keys will also function the same.
(4) F2 - Pressing the F2 key will enable the function that is described on the screen directly above this key. When this key is defined on screen to scroll up or down, the Scroll Up and Scroll Down keys will also function the same.
(5) F1 - Pressing the F1 key will enable the function that is described on the screen directly above this key. When this key is defined on screen to scroll up or down, the Scroll Up and Scroll Down keys will also function the same.
(15) RUN - Pressing the "RUN" key causes the EMCP 4.3/4.4 to enter the run mode.
(16) AUTO - Pressing the "AUTO" key causes the EMCP 4.3/4.4 to enter the auto mode.
(17) STOP - Pressing the "STOP" key causes the EMCP 4.3/4.4 to enter the stop mode or the cool down mode.
(18) Escape Key - The escape key is used during menu navigation to navigate up through the menu/submenu structure. Each key press causes the user to move backward (upward) through the menus. The escape key is also used to cancel of data entry screens during set point programming. If the escape key is pressed during set point programming, then none of the changes displayed on the screen will be saved to memory.
(21) OK Key - The OK key is used during menu navigation to move forward (downward) through the menu/submenu structure. The key is also used during set point programming to save set points changes. Pressing the OK key during set point programming causes set point changes to be saved to memory.
(6) Control Key - The control key will navigate the display to the screen that allows the user to monitor and/or adjust various special control features.
(9) Main Menu Key - The main menu will navigate the display to the main menu directly without having to navigate out of menus.
(14) Event Log - The event log button will navigate the display to the event log.
(19) Up Key - The up key is used to navigate up through the various menus or monitoring screens. The key is also used during set point entry. During numeric data entry, the key is used to increment the digits (0-9). If the set point requires selection from a list, then the key is used to navigate up through the list.
(20) Right Key - The right key is used during set point adjustment. During numeric data entry, the key is used to choose which digit is being edited. The key is also used during certain set point adjustments to select a check box or to deselect a check box. If a box has a check mark inside, then pressing the key will cause the check mark to disappear. If the box does not have a check mark inside, then pressing the key will cause a check mark to appear inside.
(22) Down Key - The down key is used to navigate down through the various menus or monitoring screens. The key is also used during set point entry. During numeric data entry, the key is used to decrement the digits (0-9). If the set point requires selection from a list, then the key is used to navigate down through the list.
(23) Left Key - The left key is used during set point adjustment. During numeric data entry, the key is used to choose which digit is being edited. The key is also used during certain set point adjustments to select a check box or to deselect a check box. If a box has a check mark inside, then pressing the key will cause the check mark to disappear. If the box does not have a check mark inside, then pressing the key will cause a check mark to appear inside.
(7) AC Overview - Pressing the AC overview key displays the first screen of AC information for the generator set. This initial information page contains various AC parameters that summarize the electrical operation of the generator set. Additional AC parameters can be viewed by pressing the down key multiple times.
(8) Engine Overview - Pressing the engine overview key displays the first screen of engine information. This initial information page contains various engine parameters that summarize the operation of the engine. Additional engine parameters can be viewed by pressing the down key multiple times.
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| Illustration 2 | g06426210 |
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(1) Starting aid auto/manual switch (if equipped)
(2) Speed potentiometer (if equipped) (3) Voltage adjust switch (if equipped) (4) Emergency stop push button (5) Circuit breaker open (6) Circuit breaker close (7) Customer connection (if equipped) | |
Starting Aid Auto/Manual Switch (1) - The starting aid switch is optional. The starting aid switch is used to inject ether into the engine when you are starting the engine in cold-weather conditions. When the starting aid switch is in the ON position, the switch energizes the starting aid solenoid valve. The starting aid solenoid valve meters a specific amount of ether into a holding chamber. When the starting aid switch is released, the solenoid releases the ether to the engine.
Speed Potentiometer (2) - The speed potentiometer is optional. The speed potentiometer can be used with the generator set that has an electronic governor.
Voltage Adjust Switch (3) - This switch can be used to raise the voltage. The switch can also be used to lower the voltage.
Emergency Stop Push Button (4) - The emergency stop push button (ESPB) is used to shut down the engine during an emergency situation. If equipped, the ESPB shuts off the fuel and the ESPB activates the optional air shutoff.
Circuit Breaker Open (5) - Press the circuit breaker open switch to open the circuit breaker.
Circuit Breaker Close (6) - Press the circuit breaker close switch to close the circuit breaker.
Customer Connection (7) - The customer connection is a 9-pin connector for connecting the Caterpillar Electronic Technician.
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| Illustration 3 | g01101388 |
The annunciator module is used to indicate various system events and conditions. The annunciator module uses indicator lights and an audible horn to give the operator information about the status of the system. The annunciator module can be used to announce faults and/or status signals to the operator. The annunciator module allows the operator to silence the horn. The annunciator module also allows the operator to acknowledge faults to the system.
There are 17 pairs of LED indicators on the front panel of the annunciator. 16 pairs of LED indicators are used to announce events, diagnostics, and ready signals. The 17th pair of LED indicators is used as a combined network/module status LED. The 17th pair of LED indicators can tell the operator if there is a problem with the J1939 data link connection.
Each pair of LED indicators on the annunciator consists of two of the following three colors: green, yellow, and red. For example, a pair of red and yellow LED indicators may be configured for engine oil pressure. If a low engine oil pressure warning is read over the data link, the annunciator will flash the yellow LED and the horn will sound. If the low engine oil pressure shutdown is read over the data link, the annunciator will flash the red LED and the horn will sound.
To acknowledge the shutdown and alarm conditions or to silence the horn, press the "Alarm Acknowledge" button that is on the annunciator.
Test the LED indicators or the horn when the data link is connected or disconnected, by pushing "Lamp Test" button on the annunciator.
The annunciator module can be customized to signal many different conditions that are related to the system. Each pair of LEDs must be configured by using the appropriate service tool. Once the service tool has been connected to the annunciator, the user must enter the "Configuration" screen. Each pair of LEDs has four settings: SPN, Trigger Type, Trigger Severity Level, and Failure Mode Identifier (FMI).
For detailed information about the annunciator module, see Systems Operation, Troubleshooting, Testing and Adjusting, UENR1210, "EMCP4.3/4.4".