BTL5-P1 - Micropulse Linear Position Sensors
Contents
1. BTL5 P1 _ M_ _ _ _ HB WB FA_ _ F_ _ C Micropulse Linear Transducer Rod Style User s Manual Balluff GmbH Schurwaldstra e 9 73765 Neuhausen a d F Germany Phone 49 7158 173 0 Fax 49 7158 5010 balluff balluff de E www balluff com BALLUFF 1 2 BTL5 P1 M___ _ HB WB FA_ _ F_ C Micropulse Linear Transducer Rod Style Function and characteristics 2 1 Characteristics Function 3 Installation 3 1 Mounting 3 2 Transducer Installation 4 Wiring Magnets Installation 4 1 Cable axial and radial 5 Startup sses 5 1 Check connections 05 5 2 Turning on the system Check output values Check functionality Fault conditions 6 Versions indicated on part la bel 6 1 Included in shipment 6 2 Available lengths 7 Accessories 7 1 Magnets 7 2 Mounti 8 Techni ng nut cal Data 8 1 Dimensions weights ambient conditions 8 2 Supply voltage external BALLUFF Outputs Connection to processor 1 Safety Advisory Read this manual before installing and operating the Micropulse Trans ducer 1 1 Proper application The BTL5 Micropulse transducer is intended to be installed in a ma chine or system Together with a controller PLC o2. agnet The electrical connection between the transducer the controller and the power supply is via a fixed cable Dimensions for installing the Micropulse transducer Fig 3 1 Dimensions for installing the mag net w Fig 3 4 BALLUFF 3 4 BTL5 P1 _ M_ _ _ _ HB WB FA_ _ F_ _ C Micropulse Linear Transducer Rod Style 3 Installation BTL5 HB WB C axial HB 30 1mm Damping zone 55 60 Man i Nom length so 60 v stroke z a 3 Magnet f T E l 1 1 z 5 i J p WAR 5 i 3 7 E a 2 a i z 5 Fk 7 i J i lel i L_ N S Thread size Q Blind hole 0 510825 _ HB M18x1 5 M4x4 25 WB 3 4 16UNF 5 for Hookspanner nz 6 deep 58 62 tightening torque max 100 Nm Mounting surface unusable area not included BTL5 HB WB C radial HB 30 1mm Damping zone 60 WB 2 0 04 Nom length 600 gi stroke ge T Magnet i h SS ee an E l en S 8 Blind hole ie M4x4 LI 6 deep Mounting surface Fig 3 1 Transducer BTL5 HB WB Dimensions Important Installation Notes To achieve secure mounting use should
3. be supported or attached the proper nut for the mounting at its end The contact surface of the trans ducer must be completely con tacted by the mounting surface The O ring supplied must make a thread When tightening the trans ducer do not exceed a tightening torque of 100 Nm When installing in a hydraulic cylinder do not allow the magnet ring to rub against the pressure perfect pressure seal i e the For horizontal mounting of trans tube The bore diameter in the bevel for the O ring must be con ducer with stroke lengths greater piston and cylinder rod should figured exactly as shown in than 500 mm the pressure tube be at least 13 mm Fig 3 3 BALLUFF BTL5 P1 _ M___ _ HB WB FA_ _ F_ _ C Micropulse Linear Transducer Rod Style 3 Installation cont 3 1 Mounting When possible use non magnetiz able material for attaching the trans ducer and magnet ring Fig 3 2 When attaching the transducer to magnetizable materials appro priate measures must be taken to protect against magnetic disturb ances Fig 3 2 Note the recommended distance of the transducer and cylinder from strong external magnetic fields 3 2 Transducer Installation The smallest permissible distance between magnet ring and rod mounting surface is shown in Fig 3 1 The transducer has either a M18x1 5 thread or a 3 4 16UNF thread for mounting The sealing is carried cut with the O ring sup
4. ients Burst EN 61000 4 4 Severity level 3 Surge EN 61000 4 5 Severity level 2 Line induced noise induced by high frequency fields EN 61000 4 6 Severity level 3 Magnetic fields EN 61000 4 8 Severity level 4 No 857 939 726 E e 00 000000 e Edition 0709 specifications subject to changes
5. ith connected cable guard system BALLUFF 8 2 Supply voltage external Regulated supply voltage BTL5 _1 20 to 28 V DC Ripple lt 0 5 Vpp Current draw lt 90 mA at 1 kHz Inrush lt 3 A 0 5 ms Polarity reversal protection built in Overvoltage protection Transzorb diodes Electric strength GND to housing 500 V DC 8 3 Control signals INIT pulse Level 5 V RS 485 422 driver Length 1 us max 3 us 8 4 Connection to processor BTL5 FA05 with connecting cable axial arrangement 5 m long BTL5 FO5 with connecting cable radial arrangement 5 m long Teflon cable 40 C to 200 C UL authorization TAL File No E227256 The following patents have been granted in connection with this product US Patent 5 923 164 Apparatus and Method for Auto matically Tuning the Gain of an Amplifier The CE Mark verifies that our products meet the requirements of EU Directive 2004 108 EC EMC Directive and the EMC Law Testing in our EMC Laboratory which is accred ited by DATech for Testing Electro magnetic Compatibility has con firmed that Balluff products meet the EMC requirements of the fol lowing Generic Standards EN 61000 6 4 emission EN 61000 6 2 noise immunity Emission tests RF Emission EN 55011 Group 1 Class A B Noise immunity tests Static electricity ESD EN 61000 4 2 Severity level 3 Electromagnetic fields RFI EN 61000 4 3 Severity level 3 Fast trans
6. l values at DC 24 V room temperature and BTL with nominal length of 500 mm Ready for operation at once full accuracy after warm up With magnet BTL P 1013 4R BTL P 1014 2R or BTL P 1012 4R Resolution lt 2 um Hysteresis lt 4 um Repeatability lt 6 um resolution hysteresis System resolution is determined by the processor or external con troller Recommended sampling rate Nominal length fstandard lt 1000 mm 0 5 to 2 kHz lt 2000 mm 0 5 to 1 kHz gt 2000 mm 0 5 kHz Non linearity Nom length lt 500 mm gt 500 mm 100 um 0 02 FS Temperature coefficient 6 um 5 ppm nominal length K Shock loading 100 g 6 ms per IEC 60068 2 27 Continuous shock per IEC 60068 2 29 Vibration 12 g 10 bis 2000 Hz per IEC 60068 2 6 take care to avoid inherent reso nances of protective tube Pressure up to 600 bar when installed in a hydraulic cylinder 1 Individual specifications as per Balluff factory standard 100 g 2 ms 7 1 Dimensions weights ambient conditions Nominal length lt 4000 mm Dimensions w Fig 3 1 Weight ca 2 kg m Housing Stainless steel Pressure tube Stainless steel 1 4571 diameter 10 2 mm wall thickness 2 mm e modulus ca 200 kN mm Mounting threads M18x1 5 or 3 4 16UNF Operating temp 40 C to 85 C Humidity lt 90 non dewing Protection rating per IEC 60529 with connector attached cable version IP 68 type tested at 5 bar 48 h IP69 K w
7. part label Supply voltage 1 DC 24 V BTL5 P1 M0450 HB FA05 C oO oa oO 23 OB Sg F Rod Style fo Mounting oO Digital output signals 6 1 Included in shipment Transducer with condensed guide Electr connection Nom length 4digits BTL5 P1 FAO5 Teflon cable 5 m axial F05 Teflon cable 5 m radial C For connection of cable guard system HB metric thread M18x1 5 WB Thread 3 4 16UNF M metric in mm Start Stop 6 2 Available lengths Nominal stroke lengths of from 25 to 4000 mm are available for ide ally sizing the transducer to the application 7 Accessories order separately 7 1 Magnets Magnet BTL P 1013 4R BTL P 1012 4R Dimensions w Fig 3 4 Weight approx 10 g Housing anodized aluminum Operating temp 40 C to 85 C included in shipment Spacer 8mm Material POM Polyoxymethylene Magnet BTL P 1014 2R Dimensions w Fig 3 4 Weight approx 10 g Housing anodized aluminum Operating temp 40 C to 85 C Magnet BTL P 0814 GR PAF Dimensions w Fig 3 4 Weight approx 2 g Housing Polyamide bound ferrite Operating temp 40 C to 85 C 7 2 Mounting nut BTL5 HB Mounting nut M18x1 5 BTL A FK01 E M18x1 5 BTL5 WB Mounting nut 3 4 16UNF BTL A FK01 E 3 4 16UNF BALLUFF 7 8 BTL5 P1 _ M___ _ HB WB FA_ _ F_ _ C Micropulse Linear Transducer Rod Style 8 Technical Data Typica
8. plied at the flange facing cama Ze OU 15 o 2 tz for magnetizable materials for non magnetizable materials a Spacer made of non mag netizable materials b Magnet Fig 3 2 Mounting Threaded hole M18x1 5 per ISO 6149 O ring 15 4 x 2 1 2 ojl I ol ojl T T o Qla Threaded hole 3 4 16UNF per SAE J475 O ring 15 3 x 2 4 gt RO0 1 0 1 Threaded hole Bevel for O ring Fig 3 3 Threaded hole for mounting the BTL with O ring BALLUFF 5 BTL5 P1 _ M_ _ _ _ HB WB FA_ _ F_ _ C Micropulse Linear Transducer Rod Style 3 Installation cont 4 Wiring cont 3 3 Magnets Installation BTL P 0814 GR PAF Note the following when mak ing electrical connections System and control cabi A net must be at the same ground potential A magnet is required for each 0172 transducer This must be ordered separately Fig 3 4 For mounting the magnet we rec ommend to use non magnetizable material w Fig 3 2 To ensure the electromagnetic compatibility EMC which Balluff warrants with the CE Mark the following instructions must be strictly followed doch BTL transducer and the proces sor control must be connected using shielded cable BTL P 1013 4R BTL P 1014 2R BTL P 1012 4R Shielding Copper filament 21 9 braided 85 coverage I O The cable shield must be grounded on the control side i e connected to
9. r a processor it comprises a position measuring system and may only be used for this purpose Unauthorized modifications and non permitted usage will result in the loss of warranty and liability claims 1 2 Qualified personnel This guide is intended for special ized personnel who will perform the installation and setup of the system 1 3 Use and inspection The relevant safety regulations must be followed when using the trans ducer system In particular steps must be taken to ensure that should the transducer system become de fective no hazards to persons or property can result This includes the installation of additional safety limit switches emergency shutoff switches and maintaining the per missible ambient conditions 1 4 This guide applies to the model BTL5 P1 HB WB Micropulse transducer Scope An overview of the various models can be found in chapter 6 Versions indicated on part label on page 7 Note For special versions which are indicated by an SA___ des ignation in the part number other technical data may apply affect ing calibration wiring dimensions etc BTL5 P1 _ M___ _ HB WB FA_ _ F_ _ C Micropulse Linear Transducer Rod Style 2 Function and characteristics 2 1 Characteristics Micropulse transducers are char acterized by Very high resolution repeatabil ity and linearity Absolute output signal Tough assembly Housing of stainles
10. s steel Wear and maintenance free measuring principle Insensitive to shock vibration contamination and noise Pressure rated to 600 bar Teflon cable Capability of connecting cable guard systems Enclosure rating per IEC 60529 Cable version IP 68 type tested at 5 bar 48 h IP69 K with connected cable guard system 2 2 Function The transducer contains a wave guide enclosed by an outer stain less steel rod A magnet attached to the moving member of the ma chine or to the cylinder piston is moved over the rod and its posi tion constantly updated The mag net ring must remain within the measuring range The magnet defines the measured position on the waveguide An ex ternally generated INIT pulse inter acts with the magnetic field of the magnet to generate a magnetostric tive torsional wave in the waveguide which propagates at ultrasonic speed The torsional wave arriving at the end of the waveguide is absorbed in the damping zone The wave arriving at the beginning of the waveguide creates an electrical signal in the coil surrounding the waveguide The propagation time of the wave is used to determine the position which is output as digital information This takes place with high precision and re peatability within the measuring range indicated as the nominal stroke length At the rod end is a damping zone within which no reliable signal is available but which may be en tered by the m
11. the protection ground Pin assignments can be found in w Table 4 1 Connections on the controller side may vary according to the controller and configuration used l To avoid coupled noise avoid 185 proximity to high current lines when routing cable between transducer controller and power Fig 3 4 Magnet optional supply Inductive coupled noise from AC harmonics e g from phase controls are especially critical against which the cable shield offers very little protection 4 1 Cable axial and radial Cable length max 500 m High noise immunity on the line Control and dais si l 6 to 8 mm Longer lengths may between the transducer and proc ontto and cata signa s be used if construction shielding essor is provided by the differen Cable BTLS5 P1 and routing are such that external tial line drivers used for the RS YE yellow INIT noise fields will have no effect on 485 422 interface The differential signal integrity signal is carried to the processor GY gray START STOP which makes it available as analog 2nd edge or digital information for further PK pink INIT processing ee GN green START STOP 2nd edge at Supply voltage external START STOP GY sie 7 _ o BU blue GND INIT I PK START STOP GN an Dom on ao GND BU processor card or WH white not used D controller 24 V BN m C Unused leads can be tied to GND on the control side b
12. ut L they must never be connected to the shield Fig 4 1 BTL5 P1_ _ with processor card controller wiring example Table 4 1 Wiring 6 BALLUFF BTL5 P1 _ M___ _ HB WB FA_ _ F_ _ C Micropulse Linear Transducer Rod Style 5 Startup 5 1 Check connections Although the connections are polar ity reversal protected components can be damaged by improper con nections and overvoltage Before you apply power check the connec tions carefully 5 2 Turning on the system Note that the system may execute uncontrolled movements when first turned on or when the transducer is part of a closed loop system whose parameters have not yet been set Therefore make sure that no haz ards could result from these situa tions 5 3 Check output values After replacing or repairing a trans ducer it is advisable to verify the values for the start and end position of the magnet in manual mode If values other than those present before the replacement or repair are found a correction should be made Transducers are subject to modifi cation or manufacturing tolerances 5 4 Check functionality The functionality of the transducer system and all its associated com ponents should be regularly checked and recorded 5 5 Fault conditions When there is evidence that the transducer system is not operating properly it should be taken out of service and guarded against unau thorized use 6 Versions indicated on
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