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Unique in many aspects, the Wärtsilä Unified Controls, UNIC introduces the only truly flexible and fully scalable control system for large reciprocating diesel and gas engines.
High reliability and efficient design
The UNIC system is designed to fulfil the long lifetime expectations for large marine diesel and gas engines operating in the toughest of conditions. The system is based on a high degree of commonalities and standard interfaces, covering different engine sizes and fuel systems in a modular way. Modular and standardized interface provides the designer of the off-engine automation systems with easily reusable design. It allows conversion of e.g. diesel engines to dual fuel or common rail with a minimum of modifi cations. Due to the pretested confi guration, the engine or generating set is operational with a minimum of commissioning and installation work.
The critical parts of the UNIC system are either redundant or very fault-tolerant to guarantee high safety and availability in all circumstances. In particular, parts like the communication and power supply are fully redundant to allow single failures without interruptions in engine operation.
Cost-efficient and flexible
With a flexible and scalable design, the number of components needed is minimized, allowing low-cost logistics and less spare-part inventory – even for different types and sizes of engines. Thanks to the electronic control, the engine can be adapted to different operating conditions.
The UNIC C2 and C3 designs follow common industry standards for fieldbus communication. Through the fi eldbus interface, the UNIC system can be accessed from off-engine automation and HMI systems as well as from remote service centres. The UNIC system is optimized for the Wärtsilä Condition Based Maintenance system (CBM).
Unbeaten performance
With unmatched power, the UNIC system provides an unbeaten performance for engine control. Modern control gives high engine output, low emissions, high effi ciency as well as steady and fast load acceptance.
The electronic fuel injection on UNIC C3 systems allows prepost and split injection. Together with the possibility to use multiple maps, the advanced system drives clean and effi cient engines with electronic fuel injection systems. A key feature in the UNIC system is a common advanced speed/load control with digital load-sharing and embedded diagnostics. The speed/load control incorporates timing control where supported by fuel injection equipment, and advanced diagnostics to track the control performance and to detect possible problems. Accurate digital load sharing is used for isochronous applications. Advanced signal processing allows e.g. knock detection, cylinder pressure measurements and other diagnostic functions to be carried out in real time.
Please read more about the different UNIC systems on these pages
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