FEATURE DRIVES, CONTROLS & MOTORS
VSD COMPRESSOR OFFERS MORE OUTPUT, USES LESS ENERGY AND HAS A SMALLER FOOTPRINT
Atlas Copco has launched the ZR 90-160 VSD+; a new range of oil-free rotary screw air compressors with motor variants of 90, 110, 132, 145 and 160kW. They are said to provide up to 10 per cent more flow, use up to 15 per cent less energy, compared with other VSD compressors, as well as offer a 25 per cent reduction in floor-space
S
uitable for applications in the food and beverage, electronics,
automotive, textile and pharmaceutical industries, which require oil-free air to guarantee product integrity and quality, the water-cooled ZR 90-160 VSD+ is housed in a soundproof, enclosed canopy and equipped with two high-efficiency permanent magnet motors, plus a new ‘state-of-the-art’ compressor element and cooler design. The ZR 90-160 VSD+ compressor
incorporates two permanent magnet motors, each independently driving the low and high pressure compression elements. The speed of the elements is controlled using Atlas Copco’s NEOS Variable Speed Drive (VSD) technology. NEOS optimises the speed of both elements throughout the entire operational speed range of the compressor to maximise unit efficiency. The NEOS drive and motors are
designed and manufactured by Atlas Copco to ensure a perfect match and optimal performance. The reliable IP66 water-cooled permanent magnet motors contain oil-lubricated bearings to ensure a long maintenance-free lifetime. Moreover, all service parts are grouped together for ease of access for a minimal service time. Mark Ranger, business line manager for
oil-free air at Atlas Copco UK commented: “Following years of intensive R&D we’re proud to unveil our latest leap forward in oil-free compressor technology. Not only does the innovative dual-motor concept enhance energy efficiency and output by up to 15 and 10 per cent respectively, but there is the optional benefit of having an integrated, guaranteed -40o˚C pressure dew-point dryer that offers almost zero energy
24 JUNE 2018 | AUTOMATION
Leading Italian-beer brand Peroni, trialled a ZR 160 kW VSD+ oil-free compressor for over 6,000 running hours at its production site in Padova, Italy, as this video highlights
https://www.youtube.co m/watch?time_continue =2&v=yiki4jM7KWo
consumption. This Full Feature package will offer users true peace of mind, reduced installation materials and a through-life cost of ownership investment lower than any comparable oil-free compressor available today.” Atlas Copco’s data monitoring program
‘Smartlink’ is also integrated as standard in the new range. This remote monitoring system provides analysis of the whole compressed air system, advises users on how they can reduce energy costs and can predict preventive maintenance interventions to avoid potential downtime. To illustrate the vast potential of the technology, Atlas Copco recently performed live field tests with a number of customers. This included leading Italian-beer brand Peroni, which trialled a ZR 160 kW VSD+ oil-free compressor for over 6,000 running hours at its production site in Padova, Italy. The company was said to be highly impressed with its reliability, guaranteed oil-free air
quality and the level of support from Atlas Copco.
As an added benefit, the re-designed
cooler incorporates a highly efficient water separator. Parallel water flow optimises cooling of the motor, element and the cooler itself. Meanwhile, enlarged stainless steel surface coolers improve cooling efficiency and ensure optimum performance over a long lifetime. Furthermore, all components in the
compressor element, such as the rotor profiles, smart inlet and rotor coating have been enhanced for maximum efficiency and durability, and ensure a guaranteed supply of Class 0 oil-free air. The ZR 90-160 VSD+ can be offered
with an Atlas Copco ‘Total Responsibility Service Plan’, which takes care of all compressor maintenance, upgrades, repairs and possible breakdowns throughout the life of the compressor.
Atlas Copco T: 0800 181085
www.atlascopco.co.uk/compressors SERVO DRIVE PROVIDES CONTROL, PERFORMANCE AND FLEXIBILITY C
ontrol Techniques, part of the Nidec group of companies, has launched a new generation of advanced servo drive technologies. The new Unidrive M750 series (0.7Nm – 51Nm
with 153Nm peak / 1.5A – 16A with 48A peak) delivers motor control performance and flexibility, from a compact package. Targeting high axis count automation systems, Unidrive M750 provides all of the benefits of a modular system with a common DC bus, with standalone drive flexibility. The new series is focused on high overload, pulse duty applications, but also provides continuous servo control, plus induction motor control, and is initially available with two functionality levels. The new range is scheduled for UK launch in summer 2018. Unidrive M753 is designed as an optimised
amplifier for high performance centralised control with EtherCAT integrated on-board and simple rotary switches for fast network address assignment. Alternatively, the flexible Unidrive M751 Base
option allows design engineers to add up to two option modules from the existing Unidrive M
range such as Profinet, Ethernet/IP or an IEC61131 high performance motion controller for decentralised machine control. For both single and multi-axis
configurations, the Unidrive M750 series offers compactness – the M753 EtherCAT variant is just 40mm wide. The drive is also designed to fit within shallow 200mm cabinets. Its patented Ultraflow system
allows machine builders to further reduce cabinet size by up to 50 per cent through expelling heat from the drive directly outside the cabinet. This approach offers the further benefit of enabling drives to be stacked without the need for a large air channel between them. Unidrive M750 boasts a wealth of features and accessories designed to make installation and commissioning as easy as possible.
Control Techniques
www.controltechniques.com /AUTOMATION
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