MULTI-BEAM Sensors. Compact modular self-contained photoelectric sensing controls

Transcription

1 MULT-BM ensors ompact modular self-contained photoelectric sensing controls.6" (4 mm) tatus ndicator LD (except emitters) ccess to ensitivity djustment." (5 mm) Lens enterline 4.5" (4 mm).6" (6. mm).7" (94 mm) /" 4 PM onduit ntrance 5 mm (#) crew learance (4).8" (. mm)." (7.6 mm)." (5. mm) Modular design interchangeable components (scanner blocks, power blocks, and logic timing modules); over 5, sensor configurations possible canner blocks for opposed, retro, diffuse, convergent, and fiber optic sensing modes (including high-gain models) Power blocks for ac or dc operation, including -wire ac operation Logic modules to support a wide variety of delay, pulse, limit, and rate sensing logic functions Most scanner blocks include Banner's exclusive, patented D (lignment ndicating Device) system, which lights a top-mounted indicator LD whenever the sensor sees its own modulated light source, and pulses the LD at a rate proportional to the strength of the received light signal.

2 MULT-BM ensors 78 LR4887 Banner MULT-BM sensors are compact modular self contained photoelectric switches. ach MULT-BM consists of three components: scanner block, power block, and logic module. The scanner block contains the complete modulated photoelectric amplifier as well as the emitter and receiver optoelements. t also contains the sensing optics and the housing for the other two modules. The power block provides the interface between the scanner block and the external circuit. t contains a power supply for the MULT-BM plus a switching device to interface the circuit to be controlled. The logic module interconnects the power block and scanner block both electrically and mechanically. t provides the desired timing logic function (if any), plus the ability to program the output for either light- or dark-operate. The emitters of MULT-BM emitter-receiver pairs do not require a logic module. mitter scanner blocks are supplied a bladepin to interconnect the scanner block and power block. This modular design, field-replaceable power block and logic module, permits over 5, sensor configurations, resulting in exactly the right sensor for any photoelectric application. There are two families of MULT-BM sensors: - and 4-wire, and -wire. Three- and four-wire MULT-BMs offer the greatest selection of sensor configurations. They permit either ac or dc operation and offer the fastest response times and the greatest sensing ranges. Two-wire MULT-BMs are used in ac-powered applications where simplicity and convenience of wiring are important. They are physically and electrically interchangeable heavy-duty limit switches. The circuitry of all MULT-BM components is encapsulated in rugged, corrosion-resistant VLO housings, which meet or exceed M,,, and ratings. Most MULT- BM scanner blocks include Banner's patented lignment ndicating Device (D ) which lights a top-mounted LD when the sensor sees its own modulated light source and pulses the LD at a rate proportional to the received light signal. Most MULT-BM sensor assemblies are UL listed and certified by (see power block listings). ll MULT-BM components (except power block models PBR and PBR) are totally solidstate for unlimited life. omposite Functional chematic, - and 4-wire ensors

3 election of MULT-BM omponents MULT-BM sensors are made up of three components: scanner block, power block, and logic module. This is true for all MULT- BMs the exception of opposed mode emitter units which require only a power block (no logic module). Upper over (lens) (supplied canner Block) Logic Module canner Block ousing The first decision in the component selection process is to determine which family of MULT-BM sensors is appropriate for the application: - and 4-wire, or -wire. ext, decide which scanner block (in the selected family) is best for the application. The guidelines in the catalog introduction will help you to determine the best sensing mode. Then narrow the choice by comparing the specifications listed in the following charts and on the pages referenced in the charts. Finally, choose a power block and logic module to complete the MULT-BM assembly. omponents snap together out interwiring to form a complete photoelectric sensing system that meets your exact requirements while maintaining the simplicity of a self-contained sensor. f you have any questions about selecting MULT-BM components, please contact your Banner sales engineer or call Banner's pplications Department at (6) during normal business hours. Lower over (supplied canner Block) LT/DRK Operate elect Logic Timing djustment Power Block Wiring Terminals - and 4-wire ystems (pages 6 through ) canner Blocks Model ensing Mode Range Response Page B & BR Opposed: high speed 5 feet millisecond p. 7 BD & BRD Opposed: high speed, narrow beam feet millisecond p. 7 B & BR Opposed: high power, long range 7 feet milliseconds p. 7 BV & BR Opposed: visible beam feet milliseconds p. 7 BD & BRD Opposed: high power, wide beam angle feet milliseconds p. 7 BLV Retroreflective: high speed, visible beam feet millisecond p. 8 BLV Retroreflective: polarized beam (anti-glare) 5 feet millisecond p. 8 BL Retroreflective: high speed, infrared beam feet millisecond p. 8 BL Retroreflective: high power, long range feet milliseconds p. 8 BD Diffuse (proximity): high speed inches millisecond p. 9 BDL Diffuse (proximity): medium range 4 inches millisecond p. 9 BD Diffuse (proximity): high power, long range 6 feet milliseconds p. 9 BDMD Diffuse (proximity): wide beam angle 4 inches milliseconds p. 9 BV onvergent beam: high speed, visible red.5-inch focus millisecond p. BV onvergent beam: high speed, visible green.5-inch focus millisecond p. B onvergent beam: high speed, infrared.5-inch focus millisecond p. B-4 onvergent beam: high speed, infrared 4-inch focus millisecond p. B-6 onvergent beam: high speed, infrared 6-inch focus millisecond p. B onvergent beam: high power, infrared.5-inch focus milliseconds p. B-4 onvergent beam: high power, infrared 4-inch focus milliseconds p. B-6 onvergent beam: high power, infrared 6-inch focus milliseconds p. BF & BRF Opposed fiber optic (glass ): high speed see specs millisecond p. BF & BRF Opposed fiber optic (glass ): high power see specs milliseconds p. BF Fiber optic (glass ): high power, infrared see specs milliseconds p. BF Fiber optic (glass ): high speed, infrared see specs millisecond p. BFM Fiber optic (glass ): very high speed see specs. millisecond p. BFV Fiber optic (glass ): visible red see specs millisecond p. BFV Fiber optic (glass ): visible green see specs millisecond p. BR mbient light receiver see specs milliseconds p. 4 BR mbient light receiver: high gain see specs milliseconds p. 4 BRF mbient light receiver: for glass fiber optics see specs milliseconds p. 4

4 MULT-BM - & 4-WR R BLOK Functional chematic, - and 4-wire canner Block DRPTO MULT-BM - & 4-wire scanner blocks offer a complete complement of sensing modes. There are or more models for each sensing mode, resulting in a choice of exactly the right sensor for any application. The high power models ( millisecond response time) offer greater optical sensing power than any other industrial sensors. PFTO UPPLY VOLT: input power and output connections are made via a - or 4-wire power block (see pages 5 to ). RPO TM: millisecond O and OFF, except high gain models "" suffix and ambient light receivers which are milliseconds O and OFF. RPTBLTY OF RPO: see individual sensor specs. Dimensions, - and 4-wire canner Block TVTY DJUTMT: easily accessible, located on top of scanner block beneath o-ring gasketed screw cover. 5-turn clutched control (rotate clockwise to increase gain). LMT DTOR: red LD on top of scanner block. Banner's exclusive, patented lignment ndicating Device (D ) circuit lights the LD whenever the sensor detects its own modulated light source, and pulses the LD at a rate proportional to the received light level. OTRUTO: reinforced VLO housing components totally encapsulated. tainless steel hardware. Meets M standards,,, and. OPRT TMPRTUR R: -4 to +7 degrees (-4 to +58 degrees F). VLO is a registered trademark of eneral lectric ompany.

5 MULT-BM - & 4-wire canner Blocks ensing Mode Models xcess ain Beam Pattern FBR OPT Mode (glass fiber optics) -PD R BLOK OPPOD MOD OBJT RTRORFLTV MOD DFFU MOD RTRO TRT OBJT OBJT BF Range: see excess gain curves Response: ms on/off Repeatability:.ms Beam: infrared, 94nm Fiber optic information: T: individual assembly.6in (,5mm) dia. bundle T: individual assembly. in. (mm) dia. bundle BT: bifurcated assembly,.6 in. (,5mm) dia. bundle BT: bifurcated assembly,. in. (mm) dia. bundle L9:.5in. (mm) dia. lens L6F:. in. (5mm) dia. lens For information on the complete line of glass fiber optics, see Banner product catalog. BF Opposed mode, T L6F L9 no. FT FT FT FT DT BF L9. FT FT FT FT DT BF Retroreflective mode, BRT- reflector and BT Diffuse mode (Range based on 9% reflectance white test card) BT L6F BT. DT BF opposed mode O L T T OPPOD DT-- BF L9 L BT and BRT- reflector L6F L DT TO RFLTOR--FT BT BT BF DT TO 9% WT TT RD-- Fiber optics are often used to sense small parts. mall parts or narrow profiles which move at a high rate of speed can require sensors fast response times for reliable detection. igh speed fiber optic sensors are ideal for sensing gear or sprocket teeth or other targets in applications involving counters or shift registers for position control. election of the fiber optic sensing tip should involve matching the effective beam of the fiber to the profile of the part to be sensed to maximize the time that the part is sensed and/or the time between adjacent parts. ombining the best selection of fiber tip geometry a high speed sensor will result in a highly repeatable position sensing system. The model BT fiber optic assembly used a model L9 or L6F lens and a high speed scanner block is an excellent system for retroreflective code reading or for almost any short range retroreflective sensing application. Response time of a MULT-BM sensor is also a function of the power block. For this reason, only power blocks which switch dc (e.g. PBT, PBP, PBO, PBT, etc) should be used if the fast response time of the scanner block is to be utilized. FBR OPT Mode (glass fiber optics) VRY -PD R BLOK OPPOD MOD OBJT BFM Range: see excess gain curves Response: microseconds on/off Repeatability: microseconds Beam: infrared, 94nm. T BFM T and L9 T DT BFM opposed mode T T T w/l OPPOD DT-- DFFU MOD OBJT OT: gain curves illustrate that faster response comes at the expense of lower gain. For complete information on glass fiber optic assemblies and accessories, see Banner product catalog. BFM (Diffuse mode, ranges based on 9% reflectance white test card) BT fiber BT fiber.. DT BFM BT diffuse mode BT DT TO 9% WT TT RD--