Mechanical Technology April 2016

⎪ Power transmission, bearings, bushes and seals ⎪

total automation solutions Yaskawa’s premium inverter, offering su- perior reliability, environmental benefits and energy savings. Additional features such as auto-tuning to automatically adjust motor settings to achieve highest machine performance, advanced energy- saving control technology and special features for high spindle speed, accurate positioning, and crane and hoist control are available – and via the L1000 and T1000 spinoff series, the A1000 inverter drive has been customised for lift and textile applications. servo amplifier and servomotor combinations. On the motor side, the company has a complete range of induction, permanent magnet synchronous and servomotors optimised to match the application and the chosen drive strategy. Motors are available in the power range from 0.1 to 373 kW in various enclosure styles, from open drip-proof to explosion proof. Brushless ac servo motors with maximum speeds of up to 4 500 rpm and torques to 7.0 Nm are on offer, while two different types of machine tool specific motors – single winding and dual winding – complement the company’s spindle range. Of particular note are

The company’s special purpose Yaskawa AC variable speed/frequency drive is the world’s first series produced matrix converter and features direct conversion of the ac input voltage to ac output, without the need for a dc-bus and capacitor banks. This ensures a long service life and offers fully regenerative, energy efficient four-quadrant operation without the need for braking options or similar devices. For servo applications, the company can now offer its Sigma-7 series of next- generation servo systems, which are available in the 50 W to 15 kW power range and operate at speed loop band- width of 3.1 kHz. These deliver the highest performance levels due their unmatched frequency response, reduced setting times and more precise control. In addition, they feature faster setup, simpler tuning and vibration suppression. For quick and efficient setup, these modern ‘plug and play’ servo amplifiers require no parameter settings and gain adjustments to achieve high-precision positioning. When an existing solution needs to be upgraded, the whole Sigma-7 system can easily be re-configured for a new task. Out of the box servo drive solu- tions for common tasks – including gan- try, pick & place and beam applications – have been developed for Yaskawa’s

the company’s MYSP 160 and MYSP 225 gear- less lift motors for lifting loads of between 400 and 2 500 kg for trac- tion elevator appli- cations. These are permanent magnet motors available with

traction sheaves designed for elevator ropes of 6.0 mm or 8.0 mm. With pulse- generator encoders and electromagnetic brakes, these motors are designed to be driven by the L1000A inverter drive, the special lifting solution based on the A1000 drive. Designed for three million full load starts, the cooling fans and capacitors in these units have been care- fully selected for a maintenance-free lift life of at least 10 years. With an initial focus on marketing, Yaskawa DMC is investing in permanent technical and sales personnel as well as offices, training and demonstration facili- ties. Yaskawa Europe Drives & Motion Division’s South Africa-based partners – including Hudaco Group company, Varispeed, and Anytech, a subsidiary of the Directech Group, a longstanding VIPA representative in South Africa – will

For servo applications, Yaskawa now offers its Sigma-7 series of next-generation servo systems, which are available in the 50 W to 15 kW power range and operate at a speed loop bandwidth of 3.1 kHz.

be retained as channel partners, fully serviced and supported from the new Yaskawa DMC division in Johannesburg. Yaskawa Southern Africa will also be equipping its local branch network in Port Elizabeth, Cape Town and Durban with the infrastructure necessary to stock and support the extended range. “And if someone wants us to build a whole machine, we are willing to do that too. We have always done this on the robot side, but now we can offer much more than robots. We can offer turnkey automation solutions that are 100% customised to a manufacturer’s exact needs,” Rosenberg concludes. q

Mechanical Technology — April 2016

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