30@30! 3 SFE. New price Performance standard for draw wire unitsLika Electronic complements The typical back and forth travel of SFE wire-actuated unit is fitted withthe entry-level series of draw the moving equipment causes the an integral incremental encoder cable to reel and unreel and thus the which provides square wave signalswire units introducing to the linear movement to be converted with additional complementarymarket the versatile and into a rotative motion detected by signals (AB0, /AB0) via Universaldependable SFE model. the encoder which is coupled to the PP/LD +5VDC +30 VDC output cir- drum. cuit. It can boast a resolution ran-It comes along with the release of As the twin SFP model, the SFE draw ging between 1 and 0,05 mm.the twin SFP string-pot model wire unit features some remarkable SFE cable-actuated encoders are sui-unveiled just last month (see more benefits. First of all it boasts a table for installation in a variety ofdetails in our January 2012 newslet- miniature, lightweight yet robust industrial applications for typicalter). aluminium construction, thus it is linear position and speed measure-SFE is offered in a compact and suited to be installed when space is ments and guarantee long servicesturdy casing encompassing both limited (overall dimensions are 56 x life and virtually maintenance freethe cable pulling mechanism 55 x 64 mm). operation.and an integral incremental Moreover its profitable and smartencoder. design allows the wire to provide Precise linear guidance is not requi-This results in a multi-purpose and safe measurement even in inacces- red and the wire flexibility allows forcost-effective measuring system sible environments, keeping the sen-almost linear and even curved posi-boasting one of the easiest and most sing circuitry protected from exter-tion measurements.versatile types of installation and Thus they find use for short travel nal influences. The cable in stainlesscapable of ensuring really good and steel is offered in 1500 and 2000 distances in telescopic systemsreliable performances at a very low mm measuring length versions and and hydraulic pistons (for instanceprice. SFE draw-wire unit is designed can operate at a maximum speed of in mobile equipment such as outrig-to measure speed and position in a up to 2000 mm/sec. gers, stabilizing slides, telescopicvariety of industrial applications The stroke per turn is 100 mm. cranes, booms ...), forklifts, man-liftsthrough a very simple yet proven and scissor lifts, printing and measu-operating principle. One end of the The wire can be fastened easily and ring machines, medical technologystainless steel cable is connected to inexpensively to moving equipment applications such as in examinationthe moving equipment while the using just the provided nuts and no tables, dentists chairs and laborato-other end is wound onto a drum. further component is required. ry testing devices, among others. F E B R U A R Y

30@30! XAC77 FB fieldbus encoder: robustness, flexibility, precision and accuracy 4 in heavy-duty applicationsLika Electronics XAC77 FB So it includes both basic functions such as position and preset values is the high performance and extended features such as sca- fieldbus encoder combi- ling function control and velocityning robustness, flexibility, value. While in CANopen version it complies with CiA Draft Standardprecision and accuracy for 406 and supports NMT, PDO andextreme environments and SDO protocols with nodeguardingthe toughest applications. and cyclic/synchronous transmission features as well as the extendedIron and steel mills, cranes, portal functions already stated aboutcranes and hoists, heavy vehicles, Profibus.mobile equipment and construction However, the need to meet such XAC77 absolute encoder has beenmachineries can rely today on a cut- requirements does not lead to a rigid devised for applications thatting edge fieldbus solution, without and inflexible system. demand high resolution and greatany compromise. XAC77 fieldbus encoder in fact accuracy and is offered in 30-bitEngineered to withstand rough con- encompasses superior benefits and multi-turn version (16-bit single-ditions and built to last, this 14-mm affords outstanding flexibility and turn + 14-bit multi-turn).hollow shaft encoder is able to pro- dependability. It can be easily inte- It further boasts a removable con-vide sturdiness and reliability and grated into industrial networks as it nection cap that accommodates theoffers an ultra-rugged 10-mm thick supports Profibus-DP, CANopen terminal connectors for power sup-anticorodal alloy housing with supe- DS406 and DeviceNet fieldbus ply and the BUS IN and BUS OUTrior opto-electronics for dependable communication interfaces cables as well as the dip-switchesenduring service. (DeviceNet interface will be availa- for setting the node ID and the baudIts mechanical properties along with ble by the end of the year). rate (when requested; node ID andthe excellent encapsulation are Fieldbus technology permits to baud rate are settable via softwaredesigned to ensure robustness improve performance thanks to too).and durability even under harsh complete device interface (bi-direc- It allows for a more accessible andoperating conditions, thus XAC77 tional data transmission, enhanced easier cabling. In addition the use ofis able to handle the most severe programmability, comprehensive standardised bus cables provides aapplications affected by high radial diagnostic information), achieve simplified and safe connectivity thusand axial shaft loads, extreme shock communication transparency, sim- saving time and money whilst redu-and vibration impacts as well as plify and standardize installations cing the risk of errors.large temperature fluctuations. allowing several devices to be simplyFurthermore it provides IP66-rated connected in the same network.protection against environmental In Profibus version this encoderfactors including dust, dirt, oil, grea- complies with Profibus-DP Profilese, moisture, water jets and common for Encoders and can be set as Classchemical agents. 1, Class 2 or Class 2(+VEL) device. F E B R U A R Y

30@30! SMEX2: new incremental linear sensors with integrated 5 limit switchesSuperb performance even sducers. Likas sensors use an advan- Lika Electronics sensors are supplied ced magneto-resistive sensor for with a polymer/ferrite compositein the most dynamic and producing impressive accuracy even magnetically encoded scale which is demanding linear motor at highest speeds, low modulation highly immune to dirt, debris and applications. rates and superb signal output clari- external contaminants and can be ty. easily applied / removed via a pre- Moreover, the new magnetic system applied self-adhesive backing.Specifically designed for position provides liberal mounting tolerances Sensor wipers are available forfeedback in linear motors and dyna- and enables a gap between the sen- debris removal from the magneticmic precision motion systems, new sor and the magnetic scale of up to surface ensuring a clear path ofnon-contact SMEx2 incremental 2 mm (0.079in) allowing for unpa- motion.linear sensors boast high quality ralleled ease of installation in com- Additionally, new sensors incorpora-and outstanding dependability as parison to optical sensors, while still te new high-flex cabling specifi-exemplified by performance with maintaining dependable operation cally suited for use in cable trackincreased accuracy at high travel and high performance characteri- applications, with approved testingspeeds and rugged design with stics. and rating for more than 1 millionimmunity to dirt, debris and envi- The SMEx2 sensors generate cycles.ronmental factors. square wave output signals andFurthermore, the versatile design additional complementary signals Likas SMEx2 incremental sensors areallows for a quick and easy installa- (AB, /AB as well as Index at each ideally suited for any industrialtion, with a maintenance-free ope- pole, on request) and are offered in application also requiring long tra-ration at a competitive cost. standard industry either Push-Pull vel distances, even in the harshestFeaturing a robust aluminum hou- (HTL) 10-30VDC or Line-Driver (TTL) environmental conditions, such assing with new fully integrated 5VDC output circuits with a resolu- numerically controlled machineminiaturized circuitry, the new series tion up to 0.5 m. tools including milling machines,has an IP67-rated protection The maximum operating speed is up machining centres, boring machines,against environmental factors to 8 m/s (26.25 ft/s). lathes and grinding machines,including oil, grease, water jets, SMEx2 encoders are further equip- robots, textiles, woodworking, metalcommon chemical agents and the ped with three integral sensors for & stone working machinery.finest of dust particles. detecting the 0 position referenceMoreover, they are able to handle mark (as an alternative to Indexextreme shock and vibration impacts signal) and two limit switches foras well as large temperature fluctua- upper and lower limits that may betions. The SMEx2s non-contact ope- installed at the preferred locationration also provides wear-free ope- along the scale.ration and ensures unparalleled Four LEDs are mounted exhibitingreliability over time, making them proper installation and operationthe better and lower cost alternative diagnostics, 0 reference mark andto the more delicate and higher pri- limit switches.ced optical linear sensors and tran- F E B R U A R Y