Man B&W S50ME-B9.3-TII, Project Manual

Page: 261 / 337

MAN B&W 16.01
Page 5 of 8
MAN Diesel
MAN B&W ME-B engines 198 51 84-2.3
Engine Control System Interface to Surrounding Systems
To support the navigator, the vessels are
equipped with a ship control system, which in-
cludes subsystems to supervise and protect the
main propulsion engine.
Alarm system
The alarm system has no direct effect on the ECS.
The alarm alerts the operator of an abnormal con-
dition.
The alarm system is an independent system, in
general covering more than the main engine itself,
and its task is to monitor the service condition
and to activate the alarms if a normal service limit
is exceeded.
The signals from the alarm sensors can be used
for the slow down function as well as for remote
indication.
Slow down system
The engine safety system is an independent sys-
tem with its respective sensors on the main en-
gine, fulfilling the requirements of the respective
classification society and MAN Diesel & Turbo.
Safety system
The engine safety system is an independent sys-
tem with its respective sensors on the main en-
gine, fulfilling the requirements of the respective
classification society and MAN Diesel & Turbo.
If a critical value is reached for one of the meas-
uring points, the input signal from the safety
system must cause either a cancellable or a
noncancellable shut down signal to the ECS.
The safety system is included in the basic extent
of delivery.
Telegraph system
The telegraph system is an independent system.
This system enables the navigator to transfer the
commands of engine speed and direction of rota-
tion from the Bridge, the engine control room or
the Engine Side Console (ESC).
Remote Control system
The remote control system normally has two alter-
native control stations:
• the bridge control
• the engine control room control
The remote control system is to be delivered by
an approved supplier.
Power Management System
The system handles the supply of electrical power
onboard, i. e. the starting and stopping of the gen-
erating sets as well as the activation / deactivation
of the main engine Shaft Generator (SG),  if fitted.
The normal function involves starting, synchro-
nising, phasingin, transfer of electrical load and
stopping of the generators based on the electrical
load of the grid on board.
The activation / deactivation of the SG is to be
done within the engine speed range which fulfils
the specified limits of the electrical frequency.