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28 P&TR May/June 2012 Festo launch low-cost pneumatic valve terminals and digital I/O modules Festo has launched a series of low-cost modular pneumatic valves, together with a complementary series of low-cost digital I/O modules, for its successful CPX automation platform. These latest additions further extend the platform’s suitability for diverse automation control applications, bringing a new level of system configuration flexibility to OEMs and machine builders. The new MPA-L valve terminals feature subbases manufactured from polymer instead of metal to save cost and weight, and can be configured – and retrofitted in the field – one valve at a time. The terminals are intended primarily for cost-sensitive applications where configuration flexibility and expandability are key demands, such as in factory automation, biotechnology and the food processing industry. The new CPX-L digital I/O modules are cost-optimised, high channel density units, which are ideal for I/O intensive automation control systems. Festo’s new MPA-L low-cost modular valve terminals are based on the company’s high functionality MPA-S terminals, but provide increased design granularity and a wider range of electrical connection options to simplify system integration. All MPA zero valve terminals, which include the MPA-S, the new MPA-L and the high flow rate MPA-F, are specifically designed to facilitate condition monitoring and diagnostics. As well as being compatible with Festo’s CPX modular automation platform, which offers an exceptionally wide choice of electrical control options, MPA-L terminals are available with a number of hard-wired control schemes. MPA-L valve terminals are especially easy to assemble. The required number of valve sub-bases are simply clamped together between two aluminium end-plates, and secured by three tie rods of the appropriate length. This arrangement results in a very robust and stable terminal, needs no special tools for assembly, and can be expanded at any time – up to 32 valve modules can be accommodated in a single block. The complete terminal can be mounted on a DIN rail, but this is not mandatory; wall and panel mount options are also available. The valve terminal sub-base can be connected directly to a CPX terminal, providing access to a wide range of fieldbus and Industrial Ethernet products, as well as analogue and technology modules and powerful radial stresses zero zero overhung load problems zero maintenance zero overhung load problems controllers such as Festo’s CoDeSysbased CPX-CEC. Alternatively, the valve terminal can be hard-wired; all electrical connections are made via a multi-pin connector on one of the end-plates, which can be ordered in various IP40-rated sub-D type or flat cable configurations, or with a cage clamp for individual wires. An IP65-rated front or side entry cable connector is also available. All MPA-L valve terminals feature generously proportioned air ducts to maximise flow and ensure reliable switching of multiple valves. Isolated ducting accommodates different pressure zones, and for high or low pressure applications, a simple selector mechanism enables the valves’ pilot air supply to be derived internally or externally. Exhaust air can either be fed via a high efficiency surface silencer or ducted to an external outlet, allowing the terminal to be located in a clean environment such as a food processing area. Festo’s new CPX-L low cost digital I/O modules are designed for integration with the CPX electrical terminal – they are fully compatible with all standard CPX modules and fieldbus nodes that have polymer sub-bases – and can also be combined with MPA and VTSA FREE Sizing & Product Catalog CD Improve Even The Best Hydraulic Drive Systems With OHLA Adaptors Eliminate premature motor or pump failure due to overhung loads. Prevent hydraulic contamination. SAE “A” through “F” mounts. Housings made of 25,000 PSI cast iron. Shafts of 130,000 PSI stress-proof steel. Ball or tapered roller bearing options. Standard OHLA Adaptors shipped from stock. Custom designs for most applications. Excellent for use as heavy-duty bearing blocks. RCL valve terminals to create highly cost-effective electro-pneumatic control solutions. Featuring an IP20 rating, the modules are optimised for cabinet installation. A new type of connection block that uses novel push-in spring connections simplifies system wiring and provides a compact, high channel density interface. CPX-L modules are available with 16 digital inputs, or 8 digital inputs and 8 digital outputs; each channel offers a 3-wire connection scheme for maximum signal integrity. The modules are likely to prove especially popular with designers of control systems featuring a large number of I/O channels; compared to standard CPX digital I/O modules, they can help lower implementation costs by as much as 30 percent. For reader enquiries, please mention P&TR: Nicola Meadway, Festo Ltd, Technology House, 1 Fleetwood Park, Barley Way, Fleet, Hampshire GU51 2QX, UK. Tel: +44 (0)1252 775000 Fax: +44 (0)1252 775015 Email: nicola_meadway@festo.com www.festo.com Tel: 01908 563063 Fax: 01908 562910 Email: sales@robertcupitt.co.uk www.robertcupitt.co.uk
Atlas Copco ZS low pressure blower range On stand E19 at IWEX 2012, Atlas Copco Compressors exhibitied a wide array of energy efficient blower technologies for the water and effluent treatment industry, including the latest additions to the company’s ZS range of oil-free, positive displacement screw blowers. Also, and of special interest to waste water plant operators, will be Atlas Copco’s expanded low pressure blower range which is the result of the company’s acquisition of HSI (Houston Service Industries). HSI is a leading manufacturer of multi-stage centrifugal blowers incorporating traditional lowpressure technology and Atlas Copco’s acquisition of the company means it can now offer its customers an even broader spectrum of energy efficient wastewater treatment technologies. Recognising that the aeration blower systems within municipal and industrial waste water treatment plants account for up to 70 per cent of energy usage, products on show will include the new ZS22 from Atlas Copco’s expanded ZS range of rotary screw blowers. Designed to meet today’s low carbon economy needs, Atlas Copco’s ZS screw blower technology is on average 30 per cent more energy efficient when compared to conventional lobe low-pressure solutions. The range includes 300-900kW integrally geared centrifugal blowers, 3-260kW high-speed turbo blowers, as well as 75-2600 kW multistage centrifugal blowers and 7-160 kW rotary screw VSD blowers – all complemented with a choice of air treatment and air management systems. And, to ensure maximum running efficiency and minimum site downtime, Atlas Copco Compressors’ sales and distribution network provides specialist compressed air advice and support service for the specific requirements and discrete applications within the water industry. It is available to operators 24/7 from a fleet of over 80 service engineers located across the UK. For reader enquiries, please mention P&TR: Atlas Copco Compressors Atlas Copco Ltd Swallowdale Lane, Hemel Hempstead, Herts HP2 7EA Tel: +44 (0) 1442 261201 Email: gba.info@uk.atlascopco.com www.atlascopco.co.uk �� May/June 2012 P&TR 29 Bellows couplings for solar manufacturing equipment Bellows couplings from Ruland offer a high degree of accuracy and repeatability for renewable solar energy applications including test and measurement, wafer handling, panel processing, and vision systems for photovoltaic and concentrated photovoltaic cells, panel, and thin-film production equipment. The combination of anodized aluminium hubs with a stainless steel bellows results in a lightweight, low inertia coupling that remains stiff under torsional loads. A balanced design reduces vibration for high speed applications up to 10,000 rpm. Bellows couplings are able to accommodate all types of misalignment with low bearing loads due to the thin stainless steel walls of the bellows. They are zero backlash and have no moving parts, allowing for a long, maintenance free life and making them ideal for high end stepper or servo driven systems. Ruland offers clamp or set screw style bellows couplings with straight, Torsionally stiff bellows coupling from Ruland for highly accurate solar manufacturing equipment. stepped, or inch to metric bores ranging from 3 mm to 25 mm. Stainless steel hubs, keyways, and other custom design features are available by special order. Ruland Manufacturing was established in 1937 and for the past 40 years has focused on designing and manufacturing high performing shaft collars and couplings. All metallic Ruland products are made in its Marlborough Massachusetts factory under strict controls using proprietary processes. The complete line of products includes shaft collars and rigid couplings, and a full line of zero backlash motion control couplings: beam, bellows, oldham, disc and curved jaw. For reader enquiries, please mention P&TR: Ruland Manufacturing Co., Inc. 6 Hayes Memorial Drive Marlborough, MA 01752, USA Tel: +1 508 485 1000 Fax: +1 508 485 9000 Email: marketing@ruland.com www.ruland.com D-82133 Olching, Germany Tel: +49 8142 44 82 301 Fax: +49 8142 44 82 302 Email: c.tupac@tradepressrelations.com www.tradepressrelations.com
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