Diesel Generator Tech

Diagnostic function The diagnostic function monitors and checks that Volvo Engine EMS 2 system functions normally. The diagnostic function has the following tasks: • Detect and locate functional faults • Inform that a functional fault has been detected • Give guidance during fault tracing Fault code If the diagnostic function discovers a fault in the EMS -2 system, this is indicated via the fault code/fault reason on the instrument. Both active (unrectified) and passive (rectified) faults are registered in the control system. Refer to heading “Running” to read off fault codes/fault messages. The fault code list contains all the fault codes and fault messages, together with information about causes, reactions and remedies that should be taken. Refer to chapter “Fault codes”. NOTE: All instruments are options Active faults DCU (Display Control Unit) • the text “!! ENGINE WARNING !!” is shown on the display. NOTE: You can select the language ...

There are a number of interfaces available to control Volvo Penta engine. The interfaces are: • Bus interface • CIU • DCU The common thing about the three first interfaces is that the engine is controlled over two serial communication buses. The CIU and DCU uses the bus interface to communicate with the engine. IMPORTANT! If not, Volvo Penta equipment is always jeopardized. Abbreviations BAM Broadcast Announce Message CAN Controller Area Network DEF Diesel Emission Fluid EATS Engine After Treatment System EIC Engine Interface Connector EECU Engine Electronic Control Unit EMS Engine Management System EMS 2 EMS used on TAD734GE , D9, TAD125xVE, D13 and D16 engines FMI Failure Mode Identifier OEM Original Equipment Manufacturer SPN Suspect Parameter Number VP Volvo Penta Relevant documentation • 7748665 Electrical interface specification industrial engines EMS and EMS2 • SAE J1939-73 • SAE J1939...