To avoid engine damage from a hydraulic lock due to excessive oil supply to the combustion chambers,
the engine must be started at least once a month.
Electronic system
Electronic control and monitoring system with integrated safety and test system, providing interfaces to
remote control system (RCS) and monitoring system (MCS).
Engine Interface Module (EIM)
The Engine Interface Module (EIM) is the central connection box on the engine. It covers the complete
minimum scope of a marine engine. It has no controls or parts requiring maintenance.
Functions:
• Starter control (start repetition, tooth alignment, starter protection)
• Battery-charging generator monitoring
• Open bus interface to the plant (SAE J1939)
• Emergency stop function with line break monitoring
• Redundant power supply
• Optional control of emergency air-shutoff flaps
• Key switch logic
• Interface to ECU and EMU
• MCS5 dialog interface
• Control of an MTU lube-oil priming pump (power components in separate MTU PPC Box)
• Connection facility for an MTU Local Operating Station (LOS)
Serial RS422 interface for diagnosis
The engine interface comprises two parts. The first part of signals is integrated in the engine wiring har-
ness with a 62-pole Tyco connector X52. The second part refers to signals associated with higher cur-
rents. These signals are led out via M threaded bolts and also integrated in the engine wiring harness.
Functions
• ECU supply
• EMU supply
• Plant signals (ECU7 connector X1)
• Bus interface (2x MCS5 CAN)
• CAN dialog output (1xMCS5 CAN)
• Emergency stop from EMU and ECU
• Electric starter
• Terminal 45 starter A/B (engaged)
• Pneumatic starter
• Starting-air pressure valve
• Start-air pressure sensor
• Barring gear (1 and 2)
• Battery-charging generator (with exciter control)
• Optional emergency air shut-off flaps
• Activation signal to air shut-off flaps 1+2
• Feedback signal from air shut-off flaps 1+2
Electronic engine governor (ECU)
Functions:
• Engine speed control with fuel and speed limitation according to engine status and operating condi-
tions
• Control of sequential turbocharging, cylinder bank cut-out and air recirculation function.
• Data processing logistics for analog and binary signals
• Interface for data transfer to CAN field bus for remote control and ship-side monitoring
MS150066/02E 2013-02 | General Information | 17
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