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xxx 2013-10-09

Marex OS II for Controllable Pitch Propellers, Water-Jet and Hybrid Drives

Marex OS II for Controllable Pitch Propellers, Water-Jet and Hybrid Drives

Marex OS II-CPP: Optimized for applications with controllable pitch propellers, such as wind farm service vessels.

More than 10,000 units installed on vessels all over the world attest to the maturity and reliability of Rexroth’s Marex OS as a hardware and software platform for controlling ship propulsion systems. Its applications range from simple reversing gear systems to redundant controllable pitch propeller systems, for example on offshore supply vessels. The latest system, Marex OS II-CPP, completes the modular Marex product range, closing the gap between Marex SB for small boats and Marex OS for more extensive applications. With this package, a manufacturer-independent control is now available for controllable pitch propellers in small- and medium-scale applications.

Marex OS II-CPP meets all the demands of a state-of-the-art electronic remote control. The system is easily customized to the individual requirements of drive and control stations using the service and parameterization tool ParaEdit. With this tool, customers can quickly and easily specify the desired number of keys or special control head setups. The display and user interface options on the central unit guarantee simple commissioning. All parameters can be set directly without the need for extra equipment.

The predefined functions can be easily modified–even on site–using an integrated PLC interface. Other interfaces are also provided for higher-level components such as joysticks or DP systems. Extra input and output channels are available through CAN I/O modules. Finally, the open software design allows functions to be changed without altering the software separately.

The control is also suitable for systems with variable output drives such as water jets and rudder propellers, as well as for serial or parallel hybrid propulsion trains.

For Marex OS II-CPP, the operator can choose control heads from the 230, 240 or 241 product families, all in the familiar Marex OS design. A high-capacity color display with integrated keys is used to visualize operating conditions, control head settings, and feedback. The displays provide excellent legibility, even on external control stations and in broad daylight.

Rexroth supplies the relevant control system components for individual configurations. As a full-liner, Rexroth also offers to conduct project management and supply pre-adjusted and type-approved systems.

Systems solutions with application experience

Rexroth has combined all its experience in maritime applications in its marine and offshore industry management. Based on an extensive range of components for electronics, hydraulics, and pneumatics, our specialists use their wide-ranging industry expertise to assist shipbuilders and operators in devising custom system solutions. Thanks to a global service network, Rexroth also ensures professional support throughout the world.

For more information on Bosch Rexroth electronic and pneumatic marine controls, please visit

About Bosch Rexroth:

Economical, precise, safe, and energy efficient: drive and control technology from Bosch Rexroth moves machines and systems of any size. The company bundles global application experience in the market segments of Mobile Applications, Machinery Applications and Engineering, Factory Automation, and Renewable Energies to develop innovative components as well as tailored system solutions and services. Bosch Rexroth offers its customers hydraulics, electric drives and controls, pneumatics, gear technology, and linear motion and assembly technology all from one source. With locations in over 80 countries, more than 37,500 associates generated sales revenue of approximately 6.5 billion euros ($8.4 billion) in 2012.

To learn more, please visit

About Bosch:

In the U.S., Canada and Mexico, the Bosch Group manufactures and markets automotive original equipment and aftermarket solutions, industrial drives and control technology, power tools, security and communication systems, packaging technology, thermotechnology, household appliances, solar energy, healthcare telemedicine and software solutions. Having established a regional presence in 1906, Bosch employs nearly 24,600 associates in more than 100 locations, with consolidated sales of $10.6 billion in fiscal year 2012. For more information, visit, and

The Bosch Group is a leading global supplier of technology and services. In fiscal 2012, its roughly 306,000 associates generated sales of $67.5 billion. Since the beginning of 2013, its operations have been divided into four business sectors: Automotive Technology, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 360 subsidiaries and regional companies in some 50 countries. If its sales and service partners are included, then Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. Bosch spent some $6.1 billion for research and development in 2012, and applied for nearly 4,800 patents worldwide. The Bosch Group’s products and services are designed to fascinate, and to improve the quality of life by providing solutions which are both innovative and beneficial. In this way, the company offers technology worldwide that is “Invented for life.” Additional information is available online at and


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