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28 P&TR Nov/Dec 2011 Aerotech’s new MPS75SL miniature positioning stage Aerotech’s new MPS75SL series miniature linear positioning stages are just 75 mm wide and available in four travel ranges from 25 mm to 100 mm. Aimed at applications in university labs, or R&D centres that require precision alignment, or for assembly, test and measurement in industrial production environments, the small footprint and low-profile stage design is optimised in the use of the latest generation of miniature 1 mm pitch precision ballscrews, high resolution encoders and anticreep crossed roller bearings for ultra smooth velocity and reduced error motion. The MPS75SL is available in a choice of standard precision or with Aerotech’s HALAR linear error-corrected certified precision. Standard precision is +/- 4 microns whilst HALAR calibrated accuracy is +/-1.5 microns for the 100 mm travel version, with bidirectional repeatability of +/- 0.75 microns. For motion control flexibility the MPS75SL is available with a choice of brushed DC motor or open loop stepper motor, both offering a linear positioning resolution to 0.1 microns. Although small in size the MPS75SL has a 15 kg direct load rating which allows a practical offset load factor thanks to the choice of crossed roller bearings. This is particularly important for maintaining high stiffness in multi-axis configurations which are made straightforward by direct carriage to stage body mounting for X-Y set-ups and optional right-angle L-brackets for vertical Z-axis mounting; as well as breadboard mounting plates for customer work piece clamping. All multi-axis configurations are available in a choice of XY, XZ or YZ orthogonal precision to 5 or 10 arc-sec. A bellows protection cover option is also available. The new stages are a part of a complete family of MPS (Miniature Positioning Stage) motorised positioners that include linear, rotary, goniometer, and vertical lift and Z stages. Also recently launched, the new MPS50SL linear stage has a similar construction to the larger MPS75 stage but its width is just 50 mm with travel range of 25 mm or 50 mm. The Trio ARMS new Motion Coordinator Trio Motion has expanded its Motion Coordinator range with two new motion and machine controllers based on the latest 533MHz ARM11 processor - flexibly and economically providing new levels of multi-tasking servo or stepper control for high performance automation. The MC403 will control two servo axes with a master encoder input, or three stepper axes; whilst the MC405 has a choice of four servos plus a master encoder or five step and direction axes. The 6MHz servo encoder ports are selectable for incremental linear or rotary feedback or may be configured for SSI, Tamagawa and EnDat absolute types. The maximum stepper output frequency is 2MHz. Any combination of servo and stepper axes is possible. The new MC403 and MC405 build on previous Motion Coordinators with an abundance of performance enhancements that the ARM11 core has enabled. With more than four times the clock frequency at 533MHz, an improved selectable servo update rate from 125 to 2000 microseconds and a maximum data table size of 512K, the double floating point precision processor delivers much improved servo loop accuracy with fast 64 bit real-number mathematics and 64 bit integer position registers. The ability to use multi-tasking TrioBASIC and/or IEC 61131- 3 programming support allows OEMs and end-users the maximum flexibility for tightly synchronised, high throughput motion and machine control. The MC403 and MC405 will suit applications where any combination of linear or interpolated motion, electronic gearbox or linked axes need to be coordinated with machine I/O and sensor interfacing. Trio’s Motion Perfect support software provides a fully scalable single programming environment across all of the Motion Coordinator range for setting up, motor tuning and diagnostics. Other programming possibilities for both models include TrioPC for ActiveX with HPGL and DXF import capability. A G-code programmable option is coming soon. motor and configuration options are also similar and the stage can be directly mounted to the MPS75 for even more space-saving potential. As with many of Aerotech’s precision positioning mechanics, the MPS range is available with optional high-vacuum preparation to 10-6 torr where modified materials, surface preparation, hardware venting, lubrication and other features can be modified for applications within vacuum chambers for manufacturing, inspection, and military/aerospace use Aerotech can deliver complete motion solutions – assembled and fully calibrated with controllers set-up and ready to deliver results from the start. All equipment is fully documented with performance and calibration data, detailed operation manuals and wiring diagrams. Comprehensive technical support with optional training and on-site assistance further reduces commissioning time to ensure minimum customer learning curve and fastest time to market. Motion controls that complement the MPS family include PC based software-only or hardware based rack or desk mount packages combining advanced motion and These new Motion Coordinators include a complement of built-in digital and analogue I/O with a fast dual position input capture capability on every axis. Electronic switches with supporting FIFO’s on each axis allow outputs to be accurately toggled, for example for laser control. A CANbus expansion port provides a CANopen master or DeviceNet slave as well as optional TrioCAN I/O modules for up to 512 digital I/O points and 32, 12bit analogue inputs and 16 12bit analogue outputs. Both models have a built-in RJ45 Ethernet port for programming and connection of HMI or other devices; protocols available include Modbus TCP and Ethernet IP. There is also both RS232 and 485 serial ports as an alternative for communications, or for use with Modbus-RTU, Hostlink or user programmable devices. Memory expansion is made possible with a Micro SD card slot that also allows program and configuration data transfer across machines. The attractive and neatly packaged MC403 and MC405 Motion Coordinators suit enclosure, panel or DIN-rail mounting with a singlepiece cast metal back plate that provides an integrated earth chassis for improved EMC performance. A combination of removable screw terminals and D-type connectors provide fast and convenient interfacing. The discernible differences between the two models, apart from the axis count and the encoder provision, relate to the multitasking capability and the number of virtual axes machine control commands that are designed to optimise performance, speed set-up times, increase throughput and enable higher quality finished parts or test quality. A wide choice of programming options include RS-274 G-code, AeroBasic, IEC61131-3, Microsoft .NET Framework and LabVIEW for varying levels of advanced software and analytical functionality. For reader enquiries, please mention PTR: Simon Smith: Aerotech Limited, Jupiter House, Calleva Park, Aldermaston, Berkshire RG7 8NN Tel +44 (0)118 940 9400 Fax +44 (0)118 940 9401 Email: ssmith@aerotech.com www.aerotech.com available, as well physical variations such as I/O count, size and status display: The 2-servo/3-stepper MC403 can run six simultaneous tasks and has a total of eight axes in software, whilst the MC405 runs up to ten tasks with sixteen axes in software. Axes not assigned to builtin hardware can be used virtually which is particularly useful for simulated motion or event timing. Both controllers have eight 24VDC inputs and two 12bit analogue inputs, but the physically larger MC405 has ten rather than six registration inputs and eight rather than four 24V bidirectional I/O channels. Furthermore the MC405 includes an LCD display in addition to the two status LEDs available on the MC403. The MC403 and MC405 Motion Coordinators are aimed at relatively low axis count applications. Trio Motion’s MC464 Motion Coordinator offers a diverse multi-axis capability for up to 64 independently configured servo or stepper axes together with a very wide range of fieldbus protocols, increased multitask support and numerous additional features where more complex motion and machine control is required. For reader enquiries, please mention PTR: Mark Kennelly, Trio Motion Technology, Shannon Way, Tewkesbury, Gloucestershire GL20 8ND United Kingdom Phone: +44 (0)1684 292333 Email: mkennelly@triomotion.com www.triomotion.com
Nov/Dec 2011 P&TR 29 Abssac on the go It gives us a great deal of pleasure to announce that we are expanding our wide choice of shaft coupling products with a brand new offering – the SCHMIDT-KUPPLUNG® range of compact coupling systems. This outstanding array of products provides an excellent choice, addressing different customer needs for a high performance standard item, a coupling adapted to their particular sector, or a solution tailored to a specific single application. Controlflex® – the perfect coupling for shaft encoders, accommodating all types of misalignment with very low restoring forces and low stress on the encoder bearings at constant angular velocity. Semiflex® – torsionally stiff, precise and backlash-free shaft couplings that require little axial space, compensate misalignment without restoring forces and transmit torque between shafts in instances where shaft alignment cannot be guaranteed. Schmidt-Kupplung® – the classic product for extreme parallel offset, this torsionally stiff shaft coupling compensates variable parallel shaft offset without side loads in a very compact envelope. Loewe® GK – with high axial stiffness and multiple shaft connections, this coupling is ideal for torque applications requiring resistance to axial motion, the mix of kinematic properties allowing much radial and angular misalignment. Omniflex® – offering high universal shaft misalignment compensation with compact dimensions, this torsionally stiff and robust coupling is purpose designed for maximum torque requirements and the toughest cycle operations. For reader enquiries please mention PTR: Abssac Limited, E1A The Enterprise Centre, Enterprise Way, Evesham, Worcestershire, WR11 1GS Tel: +44 (0)1386 421005 Fax: +44 (0)1386 422441 Email: sales@abssac.co.uk www.abssac.co.uk LTi is available from Motor Technology Measuring just 55 x 160 x 120mm the CDF3000, manufactured by LTi and available in the UK from Motor Technology, is a small, low-cost servo drive, with the features and functionality of a more expensive, high-end drive. It has excellent operational functionality for 24 or 48V DC supply, a robust mechanical design concept, comprehensive CANopen DSP 402 integration, safe standstill in accordance with IEC 954-1 category 3, with integrated safety relay. It can run synchronous, asynchronous and DC motors and is compatible with resolver and SSI absolute encoder feedback. Additional key features includes, evaluation of two encoders, evaluation of multi-turn encoders, sequenced positioning tasks, PLCmotion functionality, Camswitching group and online position profile generator. According to Motor Technology’s managing director, Andrew Fallows, ‘The CDF3000 is a bit like a buying a basic car but getting the top-of-the-range- model. It’s a small, low-cost drive suitable for highly demanding automation applications.’ For reader enquiries please mention PTR: Andrew Fallows, Motor Technology Ltd, Motec House, Chadkirk Business Park, Stockport, SK6 3NE, Tel: 0161 217 7100, Fax: 0161 217 7101, Email: andrew@motec.co.uk
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