Enfo IV Contents …………………………………………………. 1 Overview …………………………………………………. 2 Operation …………………………………………………. 3 wiring …………………………………………………. 7 Specifications …………………………………………………. 9 Menu ………………………………………………….
The Enfo IV is an engine-monitoring device that reads and displays engine temperature, engine RPM, and engine oil pressure as it is transmitted from the engine ECU via the SAE J1939 CAN bus. Vehicle voltage is also displayed but is independent of CAN operation. The Enfo IV can be used on both 12 and 24 Volt systems. The Enfo IV uses an automatic voltage detection system to determine the low voltage point for alarm activation.
INITIALIZATION 1. A normal initialization of the Enfo IV will light all LED segments to verify that all displays are operational. 2. The Enfo IV then displays the software revision number. 3. The Enfo IV then checks for valid CAN communication and checks the voltage range.
. The unit will then start normal operation. If CAN information is not present the Engine RPM, Oil pressure, and Engine temp displays will flash the CAN ERR message. If CAN information is not present for a specific display, that display will show dashes.
Engine RPM Display The Engine RPM data is received from the engine ECU via CAN (PGN 61444, EEC1). Engine Oil Pressure Display The Engine Oil Pressure data is received from the engine ECU via CAN (PGN 65263, EFLP1). The ENFO IV will activate the alarm if the pressure drops to 10 PSI or lower. When the pressure is low the display will alternately show the current pressure and “LO”. Engine Water Temperature Display The Engine Water Temperature data is received from the engine ECU via CAN (PGN 65262, ET1).
ALARM The Enfo IV can be connected to an external alarm (250mA max.) and alarm silence switch. When the Enfo IV activates the alarm it will remain on until the alarm condition is no longer present or the alarm silence button has been pressed. The alarm will remain OFF for 5 minutes after the alarm silence button was activated at which time the alarm will again activate (if the alarm condition still exists).
Mounting Dimensions Enfo IV The display requires a cutout as shown. The unit is water tight and may be mounted in any location on the operator’s panel. Mounting dimensions.
Wiring Installation Amp connector: 776286-1 Class1 PN: 106297 Amp pins: 770520-1 Class1 PN: 106298 1 CAN High Data SAE J1939 (HI) INPUT/OUTPUT 2 CAN Low Data SAE J1939 (LO) INPUT/OUTPUT 3 CAN Shield Shield 4 System Power +10 … 32V DC INPUT 5 System Ground Ground INPUT 6 Alarm Silence Ground INPUT 7 Audible Alarm Power OUTPUT 8 Audible Alarm Ground OUTPUT Enfo IV (109050) 090303 –8– Class 1
Parameter Value 10 to 32 Input voltage Unit VDC Current nominal: @ 27.6VDC 115 mA @ 13.
Entering the menu The Enfo IV’s alarm silence button is used to enter the menu. Press and hold the alarm silence button for 5 seconds. The Engine RPM display will show “SEL”, the Oil Pressure display will show “----“, and the Engine Temp display will show the “time remaining” counter which will begin counting down seconds starting at 5. Press the alarm silence button to scroll through the menu items. When the desired menu item is shown allow the “time remaining” counter to reach zero.
