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xxx 2012-04-01

NPE 2012: Less energy consumption at same performance levels

NPE 2012: Less energy consumption at same performance levels

The intelligent energy management of the IndraDrive power supplies with Smart Energy Mode avoid peak loads on the mains side and reduce losses in the mains connection line.

Design engineers are looking for solutions to increase energy efficiency at (at least) same productivity levels that can be used worldwide in all areas of mechanical engineering. This can be achieved with Rexroth’s IndraDrive power supplies with smart energy mode that combine various approaches in an intelligent energy management.

The IndraDrive M modular drive system offers both feeding and feeding/regenerating power supplies for single-axis and double-axis inverters. They provide the individual drives with DC bus voltage. This way they regain brake energy when the engine switches to generator mode.

The feeding supply unit saves this energy in DC bus capacitors. Because of the unregulated DC bus voltage that is inherent to the functional principle, a high voltage range is available to these types of devices.

Feeding/regenerating supplies make use of the advantages of a regulated DC bus voltage to, for example, ensure the same level of machine performance independent of the supply voltage that may differ from region to region. Here, the brake energy is first fed back into the mains and then procured again from the mains during the next acceleration process. In case of peak performances that are required, for example, for highly dynamic and cyclic start-stop applications the mains will also experience high pulse loads.

The intelligent energy management of the IndraDrive power supplies with smart energy mode combines the benefits of either variant. The regulation ensures a mains-voltage independent DC bus voltage while at the same time using the capacitors as energy storages. This way, peak loads are avoided on the mains side and losses in the mains connection line are reduced. The result is reduced energy consumption, improved grid compatibility and the use of smaller components at same machine performance levels. Rexroth provides an intelligent energy management for the entire performance range of the IndraDrive M series.

Bosch Rexroth AG is one of the world’s leading specialists in the field of drive and control technologies. Under the Rexroth brand name, the company supplies more than 500,000 customers with tailored solutions for driving, controlling, and moving. Bosch Rexroth is a partner for Mobile Applications, Machinery Applications and Engineering, Factory Automation and Renewable Energies. The company provides customized solutions tailored to the needs and specifications of each individual market. As The Drive & Control Company, Bosch Rexroth develops, produces, and sells components and systems in over 80 countries. As part of the Bosch Group, Bosch Rexroth and its 34,900 associates generated approximately 5.1 billion euros (6.8 billion) in revenue in 2010.

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The Bosch Group is a leading global supplier of technology and services. According to preliminary figures, more than 300,000 associates generated sales of 51.4 billion ($71.5 billion) euros in the areas of automotive and industrial technology, consumer goods, and building technology in fiscal 2011. The Bosch Group comprises Robert Bosch GmbH and its more than 350 subsidiaries and regional companies in some 60 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 more than 4 billion euros ($5.5 billion) for research and development in 2011, and applied for over 4,100 patents worldwide. With all its products and services, Bosch enhances the quality of life by providing solutions which are both innovative and beneficial.Additional information can be accessed at Further information is available online at,


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