Class1 Electronic Fire Commander User Manual

Operating the Detroit Diesel Electronic Fire Commander

manuals\efc\efc-2.ai

(EFC):

MODES:

There are two modes of operation for the Electronic Fire Commander. The RPM
Mode controls the engine speed to a desired RPM and the Pressure Mode controls
the engine speed to maintain a desired pump discharge pressure. The operating
mode of the Fire Commander can be changed from RPM Mode to Pressure Mode
and back without the need to return to idle. When the MODE s witch is pressed, the
Fire Commander will change from one mode to the other and utilize the RPM or
Pump Pressure that is current at the time the change is made for engine control.

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Operating the Detroit Diesel Electronic Fire Commander:

RPM Mode:

The EFC must be on and the Throttle Ready LED (interlocks necessary for increased
throttle operations are active) must be illuminated before any RPM adjustments can be
made. The RPM LED will be on to indicate that the EFC will operate in the RPM
mode.

Engine speed can be controlled to a predetermined RPM by pressing the PRESET
switch. (PROGRAMMABLE FROM THE EFC MENU)
Engine speed can be increased in 25 RPM increments using the INC switch.
Engine speed can be decreased in 25 RPM increments using the DEC switch.

Pressing the IDLE switch will return the engine RPM to it’s normal curb idle speed.

PSI Mode:

The EFC must be on and the PUMP ENGAGED, OKAY TO PUMP

THRO TTLE READ Y LEDs (safety interlocks f or pump operation have been estab lished)
must all be illuminated before anyPSI adjustments can be made. The PRESSURE
LED will be on to indicate that the EFC can be operated in the PSI Mode.

Pump Pressure can be controlled to a predetermined PSI by pressing the PRESET
switch.
Pump Pressure can be increased in 4 PSI increments using the INC switch.
Pump Pressure can be decreased in 4 PSI increments using the DEC switch.

Pressing the IDLE switch will return the engine to it’s normal idle speed.

Engine Parameters:

Engine RPM, Oil Pressure, Temperature, and System Voltage are displayed continu­ously while the EFC is in operation. In addition to this, any operating parameter that
would cause a Check Engine or Stop Engine Condition will be displa y ed on the EFC’s
Information Center Message Display and an audible alarm will be activated.

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Programming the Detroit Diesel Electronic Fire Commander:

Programming the EFC is simply a matter of selecting items from a menu.

To enter the programming menu, Press and hold the MODE and MENU switches at the
same time until “Press Idle to Exit “ is displayed on the inf ormation center, then release both
switches.
Moving through the menu is accomplished by pressing the MENU switch.
Change to a selection is performed by using the INC and DEC switches.
Exiting the programming menu is done in one of two ways.

Pressing IDLE will exit the menu and save changes.
Pressing MODE will exit the menu without saving changes.

Programming Menu Options:

RPM Preset Point: (preset engine speed)
Pressure Set (PSI): (preset PSI)
Engine Hourmeter: (information only)
Pump Hourmeter: (information only)
Engine Degrees: (oil or coolant)
Pump Pressure (PSI): (pressure reading if active)
DDEC Software Ver: (ECU revision level)
EFC Software Ver: (EFC revision level)
Fire Commander I/O Test: (test switches)
Press [MODE] Test Lights: (tests display panel)
Set Time Clock: (set clock)
Units of Measure: (English/Metric)
Welcome Message: (enable/disable)
Codes Currently Active: (information)
Connector Data: (displays connection info.)
SA VE? [Idle=Y] [Mode=N] (exit and save options)

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Use the MENU switch to scroll through the menu.
Use the INC and DEC switches when the item you want to change is displayed.
When changes are complete, press IDLE to exit and save changes.

To exit the menu without saving changes, press MODE.