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Motors and Drives


50 per cent lower than that of corresponding systems with discrete motors and amplifiers. A beneficial side effect of using integrated motors is that


heat generation in the control cabinet is reduced significantly so cooling fans are often completely unnecessary.


Adapt to needs


JVL’s modular construction makes it easy to adapt machine construction to customer needs – now and in the future. In the past the need was for example Profibus. Today it is industrial Ethernet, and tomorrow it will be wireless communication. In the past a machine constructor was always concerned


about customer needs and expectations regarding communication protocols. But there is no need for concern any longer. With interchangeable modules it is easy to switch from one module to another. When Ethernet modules are used, using the same


Fig. 2. Integrated motors are the motors of the future, says JVL. Customers need only pay for what they require


Advantages of integrated motors


Customer requirements to machines and applications are that they must be smaller and smaller, yet include increasingly more functionality. In addition, the motor must use as little energy as possible. The solution to this is integrated motors. Integrated


motors are the motors of the future, since customers need only pay for what they require - and additionally save space in control cabinets and reduce the number of cables and components. Moreover, noise problems from motor cables are eliminated as any noise is confined within the motor.


Save space By integrating the motor, controller, power supply and Ethernet interface bus in a single unit, there is no longer a need to mount motor amplifiers and EMC filters in a control cabinet. Space savings are a minimum of 75 per cent compared with conventional systems. In integrated motors of the future it will also be possible to


handle necessary safety functions, which will be an additional bonus for the overall system, and a further benefit in terms of fewer components to mount in a system cabinet.


Save energy


Integrated motors are specifically developed with the aim of minimising generation of heat. Highly efficient components and switching technology are


used to avoid the motor from over-heating. Both the motor and the power circuitry generate a lot of heat, so each Watt that is eliminated makes the motor correspondingly cooler. Moreover JVL requires that the motors are UL-approved


- and UL certification puts very stringent demands on internal and external temperatures. The standby consumption of integrated motors is typically


60 www.engineerlive.com


hardware it will be possible to switch between EtherCAT, Ethernet/IP, Powerlink, and Sercos III. This means that customer outlay is minimised since a module can be adapted to communicate with all common PLCs throughout all of the world.


Reduce installation costs


By eliminating expensive and specialised cabling and connectors to the motor and encoder - and due to component savings in the control cabinet - installation costs are reduced by approximately 65 per cent. All CANopen, Profibus, Devicenet and Ethernet modules


have additionally bus IN and OUT facilities, via which a reliable and inexpensive network can be established. All of the above provide machine constructors who use


integrated motors with an Ethernet interface bus that offers significant advantages in relation to competitors who use traditional technology.


Future motor control requirements


In the US, customer requirements for the servo motor of the future include: energy efficiency, user-friendliness and cost efficiency.


“JVL servo motors have proven to yield very high torque


in relation to their size, while consuming less energy than competitors’ products to do the same job. JVL’s software MacTalk and the elimination of separate drivers/controllers make JVL servo and stepper motors easy to implement and maintain”, says Greg Fischer of JVL USA. He continues: “JVL motors are competitive in price and


a lot of cost is saved by removing the need for cabling. The motion control markets that are buying right now in the USA include the medicinal, component, and packaging industries, as well as the public sector and the space industry (NASA). EtherNet/IP is the preferred network in the USA due to


the strong presence of Rockwell/AB.“The new JVL modules are therefore very much in demand in the USA,” concludes Fischer. l


Enter 60 or ✔ at www.engineerlive.com/ede Mads Vernon Jørgensen is Managing Director with


JVL Industri Elektronik A/S, Birkerød, Denmark. www.jvl.dk


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