TECHNOLOGY REVIEW - Camelot Technologies Group

AUTOMATION SYSTEM
The Wärtsilä 32 engine is equipped with
the Wärtsilä unified controls (UNIC) engine
automation system. The different systems
available for Wärtsilä 32 engine are UNIC
C1 and C2, described as follows.
UNIC system components
ESM
MCM
TCM
IOM
PDM
LCP
LDU
Engine Safety Module
Main Control Module
Thermocouple Module
Input Output Module
Power Distribution Module
Local Control Panel
Local Display Unit
UNIC C1
In the UNIC C1 engine automation system,
the fundamental aspects of the engine
control and safety are handled by the
embedded control and management
system. This includes engine speed
and load control as well as overspeed
protection, lube oil pressure and cooling
water temperature protection. For the other
parts, the design requires the majority of
the sensors to be hardwired to a plant or
ship control and monitoring system.
UNIC C2
The UNIC C2 engine automation system
provides a complete embedded engine
control and monitoring system. UNIC C2 is a
distributed and bus-based system in which
the monitoring and control function is placed
close to the point of measurement and control.
This significantly simplifies both the on- and
off-engine wiring. Additionally, the advanced
functions in the system, e.g. for diagnostics
and control, provide outstanding performance
and reliability, and the need for off-engine
systems is significantly reduced.
The UNIC C2 system provides the following
functionality:
•
•
Complete engine safety system
Complete local monitoring, including all
readings, events and diagnostics
•
Speed and load control (electronic speed
control by MCM if engine equipped with
actuator, otherwise by mechanical governor)
Complete engine control, including start/
stop, load reduction request, etc.
Alarm signal provision
Full system diagnostics
Fieldbus interface
•
•
•
•
The engine control system is designed to:
• Provide a compact embedded engine
control and management system for spacesaving
applications,
• Reduce installation and commissioning time
by providing a very simple fieldbus-based
interface that is delivered pre-tested and
fully operational from the factory,
• Achieve the highest possible reliability
with components, e.g. sensors, designed
UNIC C1
The UNIC C1 system provides the following
functionality:
Fundamental safety (overspeed, LO
pressure, cooling water temp.)
Basic local monitoring
Hardwired interface to plant or ship
control system.
Speed and load control (electronic speed
control by MCM if engine equipped
with actuator, otherwise by mechanical
governor)
Start/stop management
•
•
•
•
•
UNIC C2
The engine control system is designed to:
• Achieve the highest possible reliability,
with components, e.g. sensors,
designed specifically for the on-engine
environment,
• Reduce cabling on and around
the engine, with a clear point of
interconnection and a standardized
interface, and
• Provide high performance with optimized
and pre-tested controls.
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