Engine Interface Module (EIM)
The Engine Interface Module (EIM) is the central connection box on the engine. It covers the complete mini-
mum scope of a marine engine. It does not have any controls or components 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 wire 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 is integrated in the engine wiring harness with a
62-pole Tyco connector X52. The second part refers to signals associated with higher currents. These signals
are guided out via M-threaded pins and are 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
• Starting air pressure sensor
• Barring device (barring gear 1 and 2)
• Battery-charging generator (with exciter control)
• Optional emergency air-shutoff flaps
• Control signals to SDAF 1+2
• Feedback signals from SDAF 1+2
Electronic governor (Engine Control Unit, ECU)
Functions:
• Engine speed control with fuel and speed limitation dependent on engine status and operating conditions
• 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 boat-side monitoring;
• RS 232 interface for connection of MTU dialog unit.
Electronic Engine Monitoring Unit (EMU), optional
Functions:
• Data processing logistics for analog and binary signals
• Interface for data transfer to CAN field bus for remote control and ship-side monitoring.
Electronic Gear Control Unit (GCU), ship-side wall-mounting
Functions:
• Data processing logistics for gearbox coupling control;
• Input/output signals as well as data transfer to CAN field bus for remote control and ship-side monitoring.
MS150045/03E 2018-08
| General Information | 35
TIM-ID: 0000010056 - 006
Summary of Contents for 12V4000M73 series
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