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| Illustration 1 | g01177497 |
Typical Control Panel and Distribution Panel (1) Control panel (2) Generator Output Circuit Breaker (3) Circuit Breakers for the outlets (4) Outlets (5) Outlets (6) Generator Output Leads | |
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| Illustration 2 | g01177520 |
(7) Voltmeter - The voltmeter indicates the AC voltage that is generated at the output terminals and sockets. The reading that is indicated on the voltmeter will vary depending on the setting of the voltage regulator and the position of the select switch (28) for the voltmeter. The reading should not vary while the set is operating. If the excitation for the generator fails, the output voltage will fall to approximately 20 to 40 volts. Ensure that the select switch for the voltmeter is not in the OFF position if the voltmeter gives no reading.
(8) Ammeter - The ammeter indicates the electrical current that is being delivered. The current is dependent on the connected load. A separate reading from each of the phases can be taken by using the select switch (25) for the ammeter. ensure that the select switch for the ammeter is not in the OFF position if the ammeter gives no reading.
(9) Voltage Selector - The voltage selector enables the generator set to be configured for different output voltages. Do not move the voltage selector while the generator is operating.
(10) Voltage Adjust Potentiometer - The voltage adjust potentiometer allows the generator output voltage to be adjusted. A Clockwise adjustment increases the voltage and a counterclockwise adjustment decreases the voltage.
(11) Door Latch - The door latch latches the door of the control panel.
(12) Speed Adjust Potentiometer - The speed adjust potentiometer allows the operating speed of the generator to be adjusted. A clockwise adjustment increases the speed of the engine and counterclockwise adjustment decreases the speed of the engine. The potentiometer has a mechanism which allows the potentiometer to be locked at the desired setting.
(13) Frequency Meter - The frequency meter indicates the output frequency of the generator set. The engine maintains a relatively constant speed under governor control in order to provide the proper operating frequency of 60 Hz when the generator set is operating at full rated load.
(14) Battery Voltmeter - The battery voltmeter indicates the state of charge of the battery. When the engine is stopped, the normal battery voltage will be 12 to 14 volts on a 12 volt system. During starting, the needle will drop to about 70% of normal and the needle will oscillate as the engine cranks. Once the engine has started, the needle should return to the normal value. The voltage reading for an engine that is running will always be higher than the voltage reading for an engine that is stopped if the engine alternator is charging correctly.
(15) Lamp Test Switch - Press the lamp test switch in order to check the operation of the fault indicators and reset the fault detection system.
(16) Fault Indicators - The fault indicators illuminate in order to indicate that the protective circuitry has sensed the indicated condition. The lamp should be red during conditions when the system will initiate a shutdown of the generator set. For alarms, the lamp will be amber.
(17) Panel Light - The panel light is used to illuminate the control panel.
(18) Start Control Switch - The start control switch is a three-position switch that provides a means of controlling the generator set functions. In the RUN position, the auto start is initiated in order to immediately start the generator set. In the STOP position, the generator set will shut down and the automatic start is inhibited. The circuit for the fault protection is reset in this position. In the AUTO position, the control circuit is ready to initiate an automatic start upon receiving a remote start signal.
(18) Switch for Preheat System - The switch for the preheat system activates the preheat circuit for the engine.
(19) Emergency Stop Button - The emergency stop button immediately shuts down the generator set. The emergency stop button will not allow the generator set to start until the push button has been released by turning the button clockwise.
(21) Fuel Gauge - The fuel gauge monitors the fuel level in the base tank. The fuel gauge is activated automatically when the generator is running. The fuel gauge can be activated momentarily by pressing the "View Fuel" switch (23) when the generator set is not operating.
(22) Horn -
(23) "View Fuel" Switch - Press this switch in order to view the amount of fuel in the fuel tank when the generator set is not operating.
(24) Panel Light Switch - The panel light switch is used to turn on the panel light.
(25) Hour Meter - The hour meter indicates the total number of hours of generator set operation to aid in maintenance.
(26) Select Switch for the Ammeter - The select switch for the ammeter allows the operator to select a current reading from each of the phases. The OFF position allows the zero position of the ammeter to be checked while the generator set is running.
(27) Engine Coolant Temperature Gauge - The engine coolant temperature gauge is connected to a sensor in the engine in order to monitor the engine coolant temperature.
(28) Engine Oil Pressure Gauge - The engine oil pressure gauge monitors the engine oil pressure. On cold engines, the oil pressure will be significantly higher until the engine warms up.
(29) Select Switch for the Voltmeter - The select switch for the voltmeter allows the operator to select voltage readings between phases or between a phase and neutral. The OFF position allows the"zero" position of the voltmeter to be checked while the generator set is running.
This section describes basic operation of the control panel for the EMCP 3. For more information, refer to Systems Operation/Testing and Adjusting, RENR7902, "EMCP 3".
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| Illustration 3 | g01045431 |
(1) Display Screen (2) AC Overview Key (3) Engine Overview (4) Yellow Warning Lamp (5) Red Shutdown Lamp (6) Alarm Acknowledge/Silence Key (7) Lamp Test Key (8) Run Key (9) Auto Key (10) Stop Key (11) Scroll Up Key (12) Escape Key (13) Scroll Right Key (14) Enter Key (15) Scroll Down Key (16) Scroll Left Key | |
Navigation Keys
AC Overview - The key for AC Overview (2) will navigate the display to the first screen of AC information. The AC information contains various AC parameters that summarize the electrical operation of the generator set.
Engine Overview - The Key for Engine Overview (3) will navigate the display to the first screen of engine information. The engine information contains various engine parameters that summarize the operation of the generator set.
Alarm Acknowledge/Silence - Pressing the key for Alarm Acknowledge/Silence (6) will cause the output for the horn relay to turn off. This will silence the horn. Pressing the key will also cause any yellow or red flashing lights to turn off or pressing the key will cause the lights to illuminate depending on the active status of the alarms. The key for Alarm Acknowledge/Silence may also be configured to send a signal for global alarm silence on the J1939 Data Link which will silence horns on annunciators.
Lamp Test - Pressing and holding the Lamp Test Key (7) will cause all of the LED indicators and the display screen pixels to illuminate until the key is released.
RUN - Pressing the "RUN" Key (8) will cause the engine to enter the "RUN" mode.
AUTO - Pressing the "AUTO" Key (9) will cause the engine to enter the "AUTO" mode.
STOP - Pressing the "STOP" Key (10) will cause the engine to enter the "STOP" mode.
Scroll Up Key - The"Scroll Up Key" (11) is used to navigate through the various menus or the screens for monitoring. The Scroll Up Key is also used during entering setpoints. When data is entered, the Scroll Up Key is used in order to increment the digits 0 through 9. If the setpoint requires selection from a list, the Scroll Up Key is used to navigate through the list.
Escape - The Escape Key (12) is used for navigating through the menus. Use the escape Key in order to navigate through the menus and the submenus. Each keystroke causes the user to move upward through the menus. The Escape Key is also used in order to cancel out the screens that are used to enter the data for the setpoints. If the Escape Key is pressed during the programming of setpoints, none of the changes that have been made on the screen will be saved to the memory.
Scroll Right Key - The Scroll Right Key (13) is used during setpoint adjustment. The Scroll Right Key is used to edit the digits when data is being entered into the system. The Scroll Right Key is also used during certain setpoint adjustments in order to select a check box or the Scroll Right Key is used to unselect a check box. If a box has a check mark that is inside the box, pressing the Scroll Right Key will cause the check mark to disappear. This will disable the function. If the box does not have a check mark inside the box, pressing the Scroll Right Key will cause a check mark to appear. This will enable the function.
Enter - The Enter Key (14) is used in order to navigate forward in the menus and the submenus. The Enter Key is also used during the programming of setpoints in order to save changes to the setpoints. Pressing the Enter Key during the programming of the setpoints causes the changes to the setpoints to be saved to memory.
Down - The Down Key (15) is used in order to navigate through the various menus and monitoring screens. The Down Key is also used during the programming of setpoints. The Down Key is used in order to decrement "0" through "9" when the data is entered into the system. The Down Key is used in order to move downward through the list for selecting an item for the setpoint.
Scroll Left Key - The Scroll Left Key (16) is used during setpoint adjustment. The Scroll Left Key is used to choose the digit that is edited when the data is entered into the system. The Scroll Left Key is also used during certain adjustments to setpoints in order to select a check box or the Scroll left key is used to unselect a check box. If a box has a check mark inside the box, pressing the Scroll Left Key will cause the check mark to disappear. This will disable the function. If the box does not have a check mark inside the box, pressing the Scroll Left Key will cause a check mark to appear. This will enable the function.
Alarm Indicators
Yellow Warning Lamp - A flashing yellow lamp indicates that there are active warnings that have not been acknowledged. A solid yellow lamp indicates that there are active warnings that have been acknowledged. If there are any active warnings, the yellow lamp will change from flashing yellow to solid yellow after the key for Alarm Acknowledge/Silence (6 ) is pressed. If there are no longer any active warnings, the yellow lamp will turn off after the Key for Alarm Acknowledge/Silence (6 ) is pressed.
Red Shutdown Lamp - A flashing red lamp indicates that there are active shutdown conditions that have not been acknowledged. A solid red lamp indicates that there are acknowledged shutdown conditions that are active. If there are any active shutdown conditions the red lamp will change from flashing red to solid red after the key for Alarm Acknowledge/Silence (6 ) is pressed. Any condition that has caused a shutdown condition must be manually reset. If there are no longer any active shutdown conditions, the red lamp will turn off.
Basic Operation
Engine Starting Sequence
- The EMCP 3 receives an engine start signal. The signal will be one of three.
- The operator presses the "RUN" Key.
- The control is in "AUTO" and the remote initiate input becomes active.
- The operator presses the "AUTO" Key and a start command is sent via the RS-485 SCADA Data Link.
- The operator presses the "RUN" Key.
- The EMCP 3 checks the system before the crank cycle begins. The EMCP 3 checks that no system faults are present. The EMCP 3 checks that all previous shutdown faults have been reset. The EMCP 3 also checks that the engine is not already running. If the engine is equipped with prelube, the EMCP 3 checks the status of the prelube. If the prelube is not complete, the EMCP 3 will not crank the engine.
- The EMCP 3 begins the crank cycle.
- The EMCP 3 cranks the engine until the cycle crank time reaches the setpoint for total crank time or until the engine starts.
- The EMCP 3 deactivates the starting motor relay (SMR) when the engine speed reaches the setpoint for crank terminate speed.
Engine Stopping Procedure
- The EMCP 3 will receive an engine stop signal. The signal will be one of three.
- The operator presses the "STOP" Key.
- The control is in "AUTO" and the remote initiate input becomes inactive.
- The operator presses the "AUTO" Key and a stop command is sent via the RS-485 SCADA Data Link.
- The operator presses the "STOP" Key.
- After receiving the signal to stop, the EMCP 3 checks that there are no present system faults.
- The EMCP 3 begins the cooldown period. In order to bypass the cooldown period, hold down the "STOP" Key. "PRESS ENTER TO BYPASS PRESS ESCAPE TO CONTINUE" will be shown on the display. Press the Enter Key in order to bypass the cooldown period or press the Escape Key in order to continue the cooldown period.
- After the cooldown period, the EMCP 3 initiates a engine shutdown by turning off the fuel supply.
- The EMCP 3 deactivates the fuel control relay (FCR), which will stop the engine.
Viewing Events
Information from the EMCP 3 is displayed on the display screen (1). The arrow keys on the keypad are used in order to navigate through the main menu. Press the UP key (11) or the DOWN key (15) in order to highlight the main menu options.
Press the "Enter" key (14) in order to select one of the main menu options. The arrow keys are used in order to view one of the setpoints.
The EMCP 3 will power up to the screen with the main menu. If the EMCP 3 is already powered up, press the "Escape" key (12) in order to return to the main menu.
The event monitoring system uses the following terms to describe the status of an Event:
PRESENT - The condition that caused the event is present and the condition is affecting the behavior of the system.
ACTIVE - The event was previously present but the condition is no longer present. The condition has been recorded by the event monitoring system and the event monitoring system needs to be reset before the engine can be restarted.
INACTIVE - The event was active at some time but the event is no longer active. The condition is not affecting the behavior of the system.
Perform the following steps in order to view one of the events.
- From the main menu, highlight "Event Log".
- Press the "ENTER" key (14) .
- Select an ECM and press the "ENTER" key (14) .
- In order to scroll through the Events, use the "UP" and "DOWN" keys.
- Press "ENTER" after highlighting an event in order to see additional information such as SPN, FMI, time and the date of the first occurrence, time and date of the last occurrence, engine hours at the first occurrence, and engine hours at the last occurrence.
Resetting Events
A flashing red shutdown lamp indicates that there is an engine shutdown event that has not been acknowledged. The red shutdown lamp will change from flashing red to solid red when the Alarm Acknowledge/Silence key is pressed. Use the following procedure in order to reset the event.
- Press the STOP Key (10). Enter the "EVENT LOG" option from the main menu.
- Select an ECM from the list.
- Scroll through the events in order to highlight the active events.
- Make sure that the condition that caused the event is no longer present.
- Press the Enter Key.
- "RESET" will be highlighted if the condition is no longer present and the control is in "STOP".
- Press the Enter Key again.
The fault will be cleared and the red shutdown lamp will be turned off, if there are no other active shutdown conditions.
- Press the Escape Key 3 times in order to get back to the main menu.