MAN Diesel PrimeServ Academy ME Concept

Panel
- Local Operating Panel
2) Tacho system
3) Performance
4) Pneumatic Manoeuvring System
ME

are connecting all Multi Purpose Controllers and both Main Operating

A backup of the application- and setup- software is stored on both Main Operation Panels.
At replacement, the new controller is automatically configured with correct software via the control networks.

The Multi Purpose Controllers are identical hardware wise.
They have different software configurations.

is UPS
2 separate 16 A breakers (A & B)

(Accessible by authorized service personnel only)

Plug

pumps (ACU’s)
Multi Purpose Controller
’IP 66’ cabinet

either as a constant light or by flashing.
A flashing LED

for starting.
Stop
Gives the minimum speed set point
Gives the maximum speed

- Index
2 Running modes:
Economy - Emission
In combination with manoeuvering handle:

Prepare Start:
Prelube and aux blower start by pressing MOP or moving man-handle.

In case of start failure, there will be 2 repeated starts with increased fuel (heavy start)

set by C/E, for individual or all cylinders.
A certain Pscav

ECU A/B are the governors – calculating the needed fuel index

Exh. valve spindle position 4-20 mA feedback used in valve

One CCU for every cylinder

FIVA feedback from LVDT sensor, 4-20 mA

by one, to prevent overload of electrical system
In AUTO mode:
The

2 are controlled by ACU 1 & 2
Engine driven pumps

Engine driven pumps 4 & 5 are the same type as 1, 2 & 3 but are controlled digitally by ECU A & B, either maximum AHEAD or maximum ASTERN.

If the engine is equipped with 4 or 5 engine driven pumps, ECU A & B are not 100 % redundant

to
4 different controller functions:
1) Engine Interface Conrol Unit – EICU

2) Engine Control Unit – ECU
2 completely redundant units (except with more than 3 engine driven pumps)
Handles the engine specific control functions (the govenor)

3) Cylinder Control Unit – CCU
1 for each cylinder unit, redundancy by multiplicity
Handles the cylinder specific functions (fuel injection, exh. valve, cylinder lubrication and starting air valves)

4) Auxilliary Control Unit – ACU
3 units, redundancy by multiplicity
Handles the auxilliary systems (hydraulic power supply, aux blowers)

EICU
Engine Control Room Panel is connected to EICU
Local Operating Panel

B
System A
Standard is:
angle encoders with one
reference sensor on

ECU A)
MMA = Marker Master A
MSA = Marker Slave A
Q1A

System B (powered from ECU B)
MMB = Marker Master B
MSB = Marker Slave B
Q1B = Quadratur 1B
Q2B = Quadratur 2B

(Turning wheel Reference)

0 deg

45 deg

90 deg

135 deg

TDC 1

Engine
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tooth-profile The total trigger ring is built by 8 equal

• 2 redundant set of sensors.

Each set consist of four sensors. Two quadrature sensors measure on a trigger ring with 360 teeth and two marker sensors measures on a semicircular ring.

• Each set measure engine speed

•

and crankshaft position for synchronization of the control events.

can be adjusted, and then the Pmax can be kept

The maximum pressure rise (Pmax –Pcomp) has the the same limits as for MC engine because the combustion chambers are identical. (i.e. 35 bar)

94 from ECU B