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| Illustration 1 | g03887320 |
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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 generator set 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) Right key (20) OK key (21) Down key (22) Down key (23) Left key | |
The main component of the Electronic Modular Control Panel (EMCP) 4.4 SCP is the electronic control module (ECM). This section discusses the display, keys, and indicators on the control system panel of the ECM. The EMCP 4.4 SCP 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 generator set system
- Providing visual and audible indications when warning or shutdown events occur
- Manual load add and load shed capability
- Displaying system information and AC generator set information
- Displaying Suspect Parameter Number (SPN) and Failure Mode Identifier (FMI) information for events
- Programming setpoints for the standard EMCP 4.4 SCP (The setpoints for optional modules are set with the use of Cat ET.)
- Annunciator configuration is done within the EMCP 4.4 SCP
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 system
- Programming setpoints for the supervisory control system
- Displaying supervisory control system event information
- Programming the display preferences of the EMCP 4.4 SCP
- Changing password levels of the EMCP 4.4 SCP
(11) 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.
(13) Event Reset Key - The event reset button will clear all inactive fault conditions.
(10) Yellow Warning Light - The yellow warning light 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.
(12) Red Shutdown Light - The red shutdown 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. All additional EMCP controls will be shut down when the supervisory control panel is shut down.
(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 4.4 SCP to enter the run mode and send run signals to corrected generator sets.
(16) AUTO - Pressing the "AUTO" key causes the EMCP 4.4 SCP to enter the auto mode.
(17) STOP - Pressing the "STOP" key causes the EMCP 4.4 SCP to enter the stop mode.
Note: The "STOP" key is momentary and will return the ECS to "AUTO" mode when released.
(18) Escape Key - The escape key is used during menu navigation to move backward (upward) through the menu/submenu structure. The escape key is also used to cancel data entry screens during setpoint programming. None of the changes displayed on the screen will be saved to memory if the key is pressed.
(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 setpoint programming to save changes. Pressing the "OK" key during setpoint programming causes setpoint 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 setpoint entry. During numeric data entry, the key is used to increment the digits (0-9). If the setpoint 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 setpoint adjustment. During numeric data entry, the key is used to choose which digit is being edited. The key is also used during certain setpoint 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 setpoint entry. During numeric data entry, the key is used to decrement the digits (0-9). If the setpoint 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 setpoint adjustment. During numeric data entry, the key is used to choose which digit is being edited. The key is also used during certain setpoint 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. More AC parameters can be viewed by pressing the down key multiple times.
(8) Engine generator set 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. More engine parameters can be viewed by pressing the down key multiple times.
Setting the Preferences Using the EMCP 4.4 SCP Display
The EMCP 4.4 SCP supports various customer preferences and can be found under "Main Menu"/"Preferences".
The following is the list of preferences that may be adjusted by the user.
Contrast - This preference determines the darkness of the pixels on the display. A minimum contrast setting (reached by pressing and holding the down or left arrow) effectively blanks the screen. A maximum contrast setting (reached by pressing and holding the up or right arrow) effectively darkens the entire screen. Use the following steps to change the contrast if the screen in unreadable due to a misconfiguration or ambient conditions.
- Press the main menu key (9).
- Scroll using the down arrow (22) until scrolling stops. If the display is unreadable such that scrolling cannot be seen, press down a minimum of 10 times.
- Press the OK (21) key to access the preferences menu.
- Press the OK (21) key once more to access the contrast selection screen.
- Push and hold either the left arrow (23) or right arrow (20) until the text and graphics become visible.
- Press the OK (21) key to accept the adjustment.
Pressure - This preference allows pressure parameters and setpoints to be shown in either kPa, psi, or bar.
Temperature - This preference allows temperature parameters and setpoints to be shown in either Celsius or degrees Fahrenheit.
Volume - This preference allows volume parameters (such as fuel volume) to be shown in liters, imperial gallons, or US gallons.
Circuit Breaker Symbol - This preference allows the graphic for the circuit break to be either the ISO symbol or the US symbol.
Lamp Test - When this selection is highlighted, pressing and holding the "OK" (21) will darken all pixels on the screen and illuminate all LEDs on the face of the controller.
Language - This preference allows the display to be switched between "Technician English" (always listed first) and the customer language.
The map seen in illustration 2 is to be used as a guide when programming the EMCP 4.4 SCP. Refer to Systems Operation, Troubleshooting, Testing and Adjusting, UENR1210, "EMCP 4.3/4.4" and Application and Installation Guide, LEBE0040, "EMCP 4.4 Supervisory Control" for further details.
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| Illustration 2 | g03891744 |
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EMCP 4.4 SCP menu structure | |