MTU 20V4000M93 series, Operating Instructions Manual

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Connection box EIM (Engine Interface Module)
The Engine Interface Module (EIM) is the central connection box on the engine. It covers the entire minimum
scope of a marine engine series. It has no controls or parts requiring maintenance.
Functions:
• Start control (start repetition tooth-on-tooth, 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 is divided into two parts. The first part is integrated via a Tyco connector X52, 62-pin, in
the engine wiring harness. The second part comprises the signals at which a higher current flows. These sig-
nals 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 ECU and EMU
• Electric starter
• Terminal 45 starter A/B (engaged)
• Pneumatic starter
• Starting air pressure valve
• Start-air pressure sensor
• Barring device (barring gear 1 and 2)
• Battery-charging generator (with excitation control)
• Emergency-air shutoff flaps option
• Control signals to SDAF 1+2
• Feedback signals from SDAF 1+2
Electronic Engine Control Unit (ECU)
Functions:
• Engine speed control with fuel and speed limitation according to 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 ship-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:
• Date processing logistics for gear coupling control
• Input/output signals as well as data transfer to CAN field bus for remote control and ship-side monitoring
38 | General Information | MS150048/05E 2018-03
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