SCHNEEBERGER AMS en

Reduction of the complexity andminimization of the process costsWith theMONORAIL AMSSCHNEEBERGERis providing youwith acomplete productwith uniqueadvantageswith respect toPrecisionInstallationAdjustmentServiceMaintenanceDesign andConstruction.Precision___ The expansion coefficient is the same as steel.___ Good thermal coupling with the machine bed.___ Measurement close to the working process.___ Optimum alignment of the material measure as a result of the MONORAIL precision.___ Vibration - and shock-resistant.___ The generation of the material measure takes place on the finished, precise component.Installation and adjustment___ Delivered complete and ready for installation in accordance with the customer’sspecification.___ No adjustment of the linear measurement is necessary.___ Additional components and machining are not required.___ Simple and easy installation - and adjustment process becauseof the integrated system ready for operation.Service and maintenance___ Consistent separation of all parts subject to wearfrom the guide carriage and the guide rail.___ One measuring head for all MONORAIL sizes.___ The most simple and precise possibility of changingby means of a central fixing screw.___ The system is sealed against dust and liquids.___ Chemically resistant against oils, grease, cooling mediaand cleaning agents.___ Non-rusting execution of the material measure.___ Protection of the material measure against effects of theenvironment and handling.___ 100% interchangeable individual components.___ Insensitive against all kinds of contamination with dirt.Design and construction___ Space-saving system, identical space requirementsas for the MONORAIL profile rail guideway.___ Several measuring headson a single measuring ruler.___ Short construction times,because no additional mechanicaleffort is necessary.___ Short thermal stretchesto the machine spindle.

Description of the System and of the Function4321Rail with magnetised material measureA groove is machined into the base of the MONORAIL rail (1).After the adhesive fixing (2) and grinding of themagnetisable strip, the production of the material measure follows (3).The exceedingly hard cover protects the magnetisation from subsequent changedue to mechanical and magnetic environmental influences (4).The measuring head consists of:___ Housing___ Measuring electronics___ Coupling spring made of titanium___ Longitudinal wipers___ Magneto-resistant sensor in the slider___ Ceramic wipers (Protection againstsolid particles)___ Transverse wipers (protection againstliquids)___ Central fixing screw___ Measuring head cable with plug-typeconnector.

One measuring head for all sizesBecause the material measureis identically positioned relativeto the upper guideway in thecase of all MONORAIL sizes,a reading head can be universallyutilised.MR 65MR 55MR 45MR 35MR 25MONORAIL CarriagesThe adapter plate (different for every size) is attached to the MONORAIL guidecarriage with steel pins. It carries the 6-point bearing arrangement for the preciseinstallation of the measuring head with the central tension bolt.InterfacesDesignation cable lengthinterfaceSU 3 m 1 Vsswith flange ringRU 3 m 1 Vsswith external threadMU 0,3 m 1 Vsswith mounting base

The highest reliability, minimum maintenanceAccuracy recordBy means of the rail number (on every rail), SCHNEEBERGER makes possible the tracing ofthe system; as a result of this, the user has an accuracy record at his disposal.Durable protection against environmental influencesThe sealing system, which is redundant in longitudinal direction (wipers made of Viton andceramic) durably protects the sensing system against oils, greases, cooling media and solidparticle residues on the measuring strip.With practically indestructible ceramic sliding parts, the uniform,tight spacing between the sensor and the coveringstrip and with this to the material measure is produced.The slider with the sensor embeddedin plastic is pressed against the coveringstrip with springs.Reliable scanning and maintenance-free accuracyThe MONORAIL rail and with this the material measure is fixed connected with themachine base body. The overall arrangement exactly follows the temperature course ofthe thermally inert masses and stabilises the machining process. The exceedingly lowwear of the ceramic sliding surfaces in the slider has no influence on the precision. Thereliable scanning produced by the small measuring gap is trouble-free due to its principle(the accuracy is not capable of being influenced by materials in the measuring gap). Theaccuracy is thus given right up to the end of the service life. Maintenance costs andmaintenance work do not accrue. The modular design of the system makes possible thereplacement of the measuring head without any adjustment being necessary.

Free of wearThe magnetic tape is glued into the bottom of the groove magnetically insulating andattached at its ends by means of spot welds. It is hermetically sealed with a non-wearingcovering strip, which protects it from mechanical and chemical influences.The covering strip forms the running surface for the sliders of the measuring head (thesame hardness as the running surfaces of the rail). The measuring ruler can be cleanedif so required.Wear of the ceramic sliding surfaces[in µm]2100 1 2 3 4 5 6 7 8Running-in characteristics [in mio]30Wear of the ceramic sliding parts[in µm]25Limit of wear20151050020406080100 120Cooling medium +abrasive materialsI, Deficiencygrease lubricationI, Continualgrease lubricationDouble strokes [in mio] 100mm

The measuring methodEstablishment of the material measureThe measuring strip contains two magnetised tracks. The finely graduatedincremental track consists of poles with a width of 200µm, which are alternatelyarranged in longitudinal direction. The reference track for the determination ofthe absolute position is provided with distance-coded reference marks.Magneto-resistive measuring principleIn case of a relative movement between the sensor and the material measure,the change in the field strength in the magneto-resistive sensor material leadsto a well measurable change of the electric resistance. As a result of the electriccircuit design of the sensor elements as a Wheatstone bridge, the interfering influencesdue to temperature fluctuations, aging and interfering fields are minimal.Reference markIncremental track

Construction of the sensorDue to the arrangement of the sickle-shaped sensor elements, two sinus-shaped signalswith a 90° phase shift are obtained from the incremental magnetisation. For the enhancementof the accuracy, the signals of 102 individual strips are averaged. Because thestructure of the sensor is adapted to the magnetic graduation period, the influence ofinterfering magnetisations is strongly suppressed. The reference marks are implementedin triplicate for the exact definition of the switching flanks.Processing of the measuring signalsThe incremental sensor signals are conducted into high-performance driver stagesthrough high-grade instrument amplifiers. Therefore stable signals capable of absorbingloads are available at the signal outputs.The reference signals are digitally further processed and output as square wave signals.Already after passing over two reference marks the absolute position is known.SINUSCOSINUS

The measuring methodAutomatic amplitude adjustment "AGC"The current amplitude (represented by the periodic signals) is continuallydetermined in the measuring electronics. In case of any deviations, the amplitudeis adjusted. Therefore also in exceptional cases (installation error, externalerror, lifting-off of the slider), a standardised output signal is available.Measuring deviationsAs a result of the multitude of sensor strips used for the measurement, theuser has a practically ideal measuring signal at his disposal. The accuracy ofthis technology has continually increased over the past years. SCHNEEBERGERis further increasing the precision of the overall system, this in order to be in aposition to master the technical requirements in the future too.10Short termdeviation [µm] -10 0,2 0,4 0,6 0,8 1 1,2 1,4 1,6 1,8 2Position mmResolutionThe resolution limit of the system is situated at 0,05 µm.200µmUa1Ua2Ua0M =0±45°B=360...440°Positional independence of the sensorAll accuracy determining characteristics of the measuring signals (phase, amplitudedifferences, harmonic wave characteristics, etc.) are anchored in the sensor. Thereforeeven great positional deviations do not lead to an impairment of the signal quality:"The circuit remains stable." The direct consequences are a simple change of measuringheads without any adjustment needed, enhanced resistance against vibration andshocks as well as a broad tolerance band for the operation of the measuring heads.SME a Interpolation electronicsSCHNEEBERGER supplies high-performance interpolation electronics anda large range of connection – and extension cables for the connection of themeasuring systems to control systems and metering counters.

Output Ua1Output Ua2Output Ua0Electrical interfaceOutput signal Sinus-shaped signals displaced by 90° 0,8 - 1,2 Vss (120 Ω)Reference signal Square wave signal 1 VssElectric power supply + 5 V ± 5 %, max 60 mA

Technical dataSystem characteristicsMaterial measureSignal periodReference marksMax. lengthAccuracyAccuracy classPeriodic deviationResolutionReproducibilityHysteresisMovementMax. speedMax. accelerationEnvironmentProtection classOperating temperatureStorage temperatureVibration / shockInterfacesanaloguedigitalPower supplyVoltage current demandHard magnetic periodic N-S division200 µmevery 50mm, distance-coded, customer-specific6000 mm+/- 5 µm/1000 mm / +/- 2 µm/40 mm+/- 0,7 µm0,0625 - 4 µm in connection with SMEa+/- 0,0625typically 0,25 µm3 m/s30 gIP 670°-70° C-20°–70° C30 gVoltage interface 1 Vss, 11 µAssSquare wave signals with error signal5V +/- 0,25 V40 mA per reading headDimensions MONORAILMR2535455565L 7MRA/MRC577699,5129,5-L 7MRB/MRDL 8 D L 9MRA/MRCL 9MRB/MRD79,4 12 7 171,5 193,9103 16,5 7 199,5 226134,5 19 7 228 263161,5 22 7 254 296201 25 7 - 341,580L 8 L 7 LFree space Labelling8for installation of the rail5 83,5 705L 9Stop sideMeasuring length M L = L 3 - L 9Rail length L 3L 3 and L 5 refer to Monorail catalogueOption distance-coding80Position of the first reference mark in case of distancecodedsystems. Further reference marks at distances of50,2/49,8/50,4/49,6/50,6/49/4/…/…/…2680Option reference marks 50 mm spacingPosition of the first reference marks.Further reference marks at distances of 50 mm.26Customer-specific reference marks on request

AMSA-30 Ordering information1 AMSA-30 - 25 - 948 - S - SUNumberTypeSizeLengthReferenceCableInterface25, 35, 45, 55, 65in mm (magnetised length)S Reference points every 50 mmC Distance-codedK Customer-specific codingMU 0,3 m cable with mounting base (12-pole)SU 3m Cable with plug-in connector 12-pole union nutRU 3m cable with plug-in connector 12-pole external threadOO System is to be supplied without reading head.Spare parts / Reading headsSMA-30-MU 580 101 836 Scanning unit SMA-30-MU 0,3 m cableSMA-30-SU 580 101 837 Scanning unit SMA-30-SU 3 m cableSMA-30-RU 580 101 836 Scanning unit SMA-30-RU 3 m Kabel AGNRP-DST 580 101 854 Replacement parts set of seals AMSA-30Pin assignment AMSA 30, view onto the pin sideAMSA 30 withMounting base (MU)AMSA 30 withRound plug-in connectorand internal thread (SU)AMSA 30 withRound plug-in connectorand external thread (RU)1 -Ue22 Sensor +5 V3 Ue 04 -Ue 05 Ue 16 -Ue 178 +Ue 2910 0 V (GND)11 Sensor 0 V12 +5 V (V cc )Housing outside screenExecution mounting base with flange socket4110M4x7 (2x)20±0,230x3030±0,2o 65o 4,3o 7,4

The MONORAIL SystemRoller guideway with outstanding characteristics___ Many years of experience in the application of roller guideways.___ High rigidity for a great static – and dynamic load-bearing capacity.___ High running quietness for better processing performances of thework-pieces.___ Optimum sealing of the guide carriages against external influences.___ Many and diverse possibilities for the distribution of the lubricant inthe system.___ Innovative solutions for covering the bores:Plugs or covering strip MAC.

As a result of the combination of thehigh-precision MONORAIL systemwith the specially applied measuringprinciple, you achieve qualities,which enable compact installation.These qualities do not have to beachieved by Installation and adjustment,because SCHNEEBERGERsupplies these qualities as immanentto the system.As a result, you save process costsIn the design and construction,manufacture and maintenance ofyour products. You have at your disposala high degree of safety withrespect to the system function.SCHNEEBERGER with this makespossible a reduction of the complexity.The system is modularly utilisable,because it is based upon on theMONORAIL technology.The accuracy is produced mechanicallyindependently by the measuringprinciple. Therefore you have thepossibility of changing the individualcomponents without any adjustment.For you this signifies a minimisationof the process costs during theinstallation and in maintenance, e.g.,a reduction of the machine downtimes.The MONORAIL AMS complete packageThe measuring principle utilised andthe modular design of the systemprovides you with the possibility ofparticipating in the continuousdevelopment of the measuringsystem and of continually maintainingthe value in use.As technology leader of the lineartechnology sector, SCHNEEBER-GER is predestined to be in a positionover and above solely lineardistance measuring of supplying uniqueintegrated solutions of lineardistance measurement. Strategicsystem thinking at SCHNEEBERGERleads to products with a high efficiencyfor the user.

The W.Schneeberger AG company was founded in 1923 with its main operatingbase in Switzerland. Today there are five subsidiary companies dottedaround the globe. The production sites are in Switzerland and in Germany.Using a global network of sales companies and exclusive distribution outlets,SCHNEEBERGER supplies more than 4000 customers in all the majorindustrial nations.More than 50 years ago, SCHNEEBERGER laid the foundation for today'sglobal linear technology with its linear guideways. The range of productsconstructed on a modular basis provides solutions for the widest possibleseries of applications: linear guideways, roller gear tables, MONORAIL andMINIRAIL profiled track guideways, MONORAIL AMS mechatronics guideways,positioning systems. SCHNEEBERGER assigns great importance tocustomer support – especially in the project management and planningphases. Detailed calculations and analyses allow solutions to be found forevery application.SCHNEEBERGER is fully committed to the further development of its productsand range of goods and to improving its manufacturing infrastructure andlogistics, so as to be able to meet the most demanding requirements in thefuture with economical and reliable products.20.2087/-01/PDF/e/1.2/SHO/Pap/Prioduced in Germany. Subject to technical changes.