Mechanical Technology September 2016

⎪ Automation, mechatronics and electro-mechanical systems ⎪

A new synchronous motor generation: intelligent, powerful and flexible

Bosch Rexroth is meeting market requirements in the Industry 4.0 environment for intelligent solutions combined with short cycle times and flexibility with its newly designed IndraDyn S MS2N synchronous servo motor product line. Jaco de Beer (right), project engineer for mechatronics at Tectra Automation explains.

T he new MS2N ser vo mo- tor product line from Bosch Rexroth, available throughout sub-Saharan Africa exclusively through Tectra Automation, covers the torque range between 4.0 to 350 Nm with significantly increased power density and greater energy efficiency. In asso- ciation with IndraDrive control devices, MS2N motors are becoming the source of data for tasks within the networked production plant. With this in mind, Bosch Rexroth has opened up completely new application opportunities and has set new standards in servo drive technology. The MS2N product line is tailored to the demands of the future in both functionality and performance. Individual readings of every single mo- tor, as well as the saturation and tempera- ture data, are deposited into motor data storage and automatically processed by IndraDrive control devices. This increases torque precision significantly and reduces the tolerance range during operation to a fraction of the values that have been standard up to now. For the first time,

the servo motor can be used as a reliable sensor, as well as a data source. In this way, applications within the Industry 4.0 environment, such as condition monitor- ing, can be realised cost-effectively and without additional components. Up to 30% higher torque density The motors are significantly more com- pact despite their higher performance. With a new motor construction and optimised electromagnetic design, this new generation of motors achieves up to 30% higher torque density. This has two effects for machinery manufacturers; smaller motors can be employed for cur- rent drive tasks while more performance is available within the prescribed motor clearance. The up to five-times overload capacity with persistently low rotor inertia guarantees the greatest possible acceleration and dynamics in all sizes. Thanks to high-grade materials, this new development also makes it possible to have continuous output within higher rpm ranges and, along with optimised winding technology, it also reduces internal losses. In the process, the new generation of motors achieves significantly improved energy efficiency and provides a sustainable reduction in operating costs. Up to 75 m with one cable The highly dynamic MS2N product line comes in six sizes, with up to five

lengths available in each. The product line covers the 4.0 Nm to 350 Nm maximum torque performance range and the 0.8 Nm to 148 Nm permanent torque performance range. Alternate variations, with higher rotor inertia for better mass customisation, compliment this extensive range and allow for precise alignment of task formulation and motor selection. To supply power and the encoder signal, Bosch Rexroth provides an in- novative single-cable connection, as well as conventional two-cable solutions, with highly flexible cable variations and a practical quick lock. Both options enable a complete cable length in the IndraDrive standard, which means up to 75 m with no additional components is possible. In this way, both types of connections can be combined with one another at minimal cost. The equipment wiring is no longer subject to the limitations of previous single-cable systems. Tectra Automation, a Hytec Group company, is a leading drive control spe- cialist providing solutions for industrial and factory automation applications. q

Powerful MS2N synchronous servo motors have innovative single-cable connections combined with IndraDrive control device data.

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Mechanical Technology — September 2016