Unic Engine control system for diesel engines
Wärtsilä 4-stroke engine control system upgrades

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Improve engine reliability with an up-to-date engine control system

Electronic components typically have a shorter average lifespan compared to mechanical components. The risk of unexpected shutdowns increases as electronic components in engine systems age. Over time, sourcing replacement components can become increasingly difficult, increasing both the severity and cost of shutdowns.

Why upgrade your engine control system?

Upgrading to a modern system extends your engine’s lifespan, improves availability and performance, and ensures better support. A modern system also meets the requirements of the major class societies and provides more robust cyber security to help prevent cyber incidents from impacting your assets.

Wärtsilä UNIC Engine Control System to replace WECS system

The Wärtsilä Unified Controls (UNIC) system handles all engine control and monitoring functions and is available for both newbuild Wärtsilä engines and as a retrofit for older Wärtsilä engines. UNIC is an embedded engine management system that handles start/stop management, engine safety, fuel management and speed/load control as well as charge air, cooling and combustion. The Wärtsilä UNIC engine control system is a durable, all-inclusive automation system designed specifically for the harsh environments in which marine engines operate. Most Wärtsilä 4-stroke engine types can be upgraded to UNIC.

 

The Wärtsilä Unified Control system takes care of all engine control and monitoring functions

Key benefits

Upgrading your engine control system will:

  • Improve engine reliability and increase safety
  • Improve the quality of produced power
  • Protect your engine against the risk of obsolescence and ensure access to lifecycle support

    Solution

    The Wärtsilä Unified Controls (UNIC) system takes care of all engine control and monitoring functions for both newly built engines and as a retrofit for older Wärtsilä engines. It is an embedded engine management system that handles start/stop management, engine safety, fuel management and speed/load control as well as charge air, cooling and combustion. The Wärtsilä UNIC engine control system is a durable, all-inclusive automation system specially designed for the harsh environments in which engines operate.


    Solutions

    Features

    • Robust mechanical and electrical design
    • Reliable software architecture
    • Diagnostics and adaptive controls
    • Improved software filtering
    • Operator interface and communications
    • Cylinder balancing control (gas engines only)
    • Combustion control (gas engines only)
    • Load and operational control (gas engines only)

    Application

    The Wärtsilä UNIC control system upgrade ensures reliable, efficient operation and global support for both marine and energy installations.

    Supported diesel engines:

    • Wärtsilä 20
    • Wärtsilä 26
    • Wärtsilä 32
    • Wärtsilä 38
    • Wärtsilä 46
    • Wärtsilä Vasa 32
    • Wärtsilä 32-CR
    • Wärtsilä 46-CR

    Supported dual fuel engines:

    • Wärtsilä 32DF
    • Wärtsilä 50DF
    • Wärtsilä Vasa 32DF

     

    Wärtsilä Engine Speed Monitoring and Safety System upgrades

    Wärtsilä Engine Speed Monitoring and Safety System upgrades are based on the latest Wärtsilä UNIC Engine Control System modules.

    The upgrade includes three options:

    • Wärtsilä Overspeed Protection to prevent your engine from exceeding a set speed limit
    • Wärtsilä Engine Safety System to protect your Nohab engine from excessive speed, low lube oil pressure and high HT (high temperature) water temperature
    • Wärtsilä Start/Stop & Safety System to handle all basic safety functions (overspeed, low lube oil pressure and high HT water temperature), providing engine start/stop management and optionally speed/load control functionality

    Wärtsilä Speed/Load Control System upgrades

    The Wärtsilä Speed/Load Controller is embedded in the Wärtsilä UNIC Engine Control System and acts as a standalone controller (COM-10) unit. The following upgrades are available:

    • Woodward 7xx – upgrade and replacement of control systems based on Woodward 721 and 723/723+ controllers
    • Re Viking 2x – upgrade and replacement of Regulateurs Europa (RE) Viking 22 and 25 control systems

    The Wärtsilä Speed/Load Control System upgrade is suitable for Wärtsilä engines running on liquid fuel with older engine speed/load control systems requiring modernisation of the automation system. 

    As an option, the speed/load controller can be upgraded in conjunction with a governor replacement to a modern electric-hydraulic actuator and digital control system. This improves engine performance in terms of load balancing and response to load changes.

    Customer stories

    Discover the benefits others have already gained from the Wärtsilä engine upgrade solutions.

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