MINI-BEAM(R) ac-Voltage Series Installation Guide Self-contained photoelectric sensors Additional information on this product is immediately available online at www.bannerengineering.com/69942 View or download additional information, including excess gain curves, beam patterns and accessories. For further assistance, contact a Banner Engineering Applications Engineer at (763) 544-3164 or (888) 373-6767. Sensing Mode Range LED Model* Opposed Emitter SMA31E 3 m (10') Opposed Receiver Opposed Emitter - Long Range Opposed Receiver - Long Range Opposed Emitter Clear Plastic Detection Opposed Receiver Clear Plastic Detection ac mb-emitter w/cable.eps Emitters with Attached Cable bn 24-240V ac bu SM2A31R Infrared 880 nm SMA31EL 30 m (100') SM2A31RL 0 to 300 mm (0 to 12") Actual range varies, depending upon the light transmission properties of the plastic material being sensed. SMA31EPD SM2A31RPD Visible Red 650 nm Non-Polarized Retroreflective 5 m (15') Polarized Retroreflective 50 mm to 2 m (2" to 7') SM2A312LVAG Extended-Range Polarized Retroreflective 10 mm to 3 m (0.4" to 10') SM2A312LP SM2A312LV SM2A312D 380 mm (15") Diffuse All Other Cabled Models 300 mm (12") Divergent Diffuse bn bu 24-240V ac 43 mm (1.7") Focus ac mb-emitter w/qd.eps Emitters with Quick Disconnect (3-Pin Micro-Style) 16 mm (0.65") Focus Convergent 43 mm (1.7") Focus rd/bk 16 mm (0.65") Focus 24-240V ac rd/wh gn Glass Fiber Optic All Other Models ac mb-no w/qd.eps SM2A312C Infrared 880 nm SM2A312C2 SM2A312CV Visible Red 650 nm SM2A312CV2 Visible Green 625 nm SM2A312CVG Infrared 880 nm SM2A312F SM2A312FV Visible Red 650 nm SM2A312FP 24-240V ac Load gn NOTE: Output Type for all models is SPST Solid-State 2-Wire. Printed in USA SM2A312W *Standard 2 m (6.5') cable models are listed. * 9 m (30') cable: add suffix "W/30" (e.g., SMA31E W/30). * 3-pin Micro-style QD models: add suffix "QD" (e.g., SMA31EQD). rd/bk rd/wh Range varies, depending on sensing mode and fiber optics used. Plastic Fiber Optic with Quick Disconnect (3-Pin Micro-Style) SM2A312DBZ 130 mm (5") 16 mm (0.65") Focus Load Infrared 880 nm WARNING . . . Not To Be Used for Personnel Protection Never use these products as sensing devices for personnel protection. Doing so could lead to serious injury or death. These sensors do NOT include the self-checking redundant circuitry necessary to allow their use in personnel safety applications. A sensor failure or malfunction can cause either an energized or de-energized sensor output condition. Consult your current Banner Safety Products catalog for safety products which meet OSHA, ANSI and IEC standards for personnel protection. Apr 2013 03/04 p/n 69942rev. Rev.AB P/N 69942 MINI-BEAM(R) ac-Voltage Series Installation Guide Dimensions Models with suffixes E, EL, EPD, R, RL, RPD, LV, LVAG, LP, D, C, C2, CV, CV2, and CVG 3.2 mm (0.13") Models with suffix DBZ and W Models with suffix FP 12.2 mm (0.48") 30.7 mm (1.21") o 3 mm Clearance (2) 24.1 mm (0.95") Bezel M18 x 1 x 15 mm Thread (Mounting Nut Supplied) Fiber Optic Fitting 18.0 mm (0.71") 2 m (6.5') Cable Mounting Peg (o 6.3 mm x 2.5 mm) 22.3 mm (0.88") 19.1 mm (0.75") 66.0 mm (2.60") 51.8 mm (2.04") 27.4 mm (1.08") Models with suffix F and FV 13.2 mm (0.52") 54.8 mm (2.16") 16.2 mm (0.64") QD Models M18 x 1 x 19 mm Thread (Mounting Nut Supplied) 12 mm Thread Quick-disconnect 20.0 mm (0.79") Fiber Optic Fitting 69.9 mm (2.75") 31.2 mm (1.23") Sensor Features (shown with gasketed acrylic cover removed) Gain (Sensitivity) Adjustment Screw NOTES: * Please observe proper ESD precautions (grounding) when adjusting Gain pot or LO/DO switch. Alignment Indicator Device (AID)* Light/Dark Operate Select Switch Clockwise: Light Operate (outputs conduct when sensing light is received). * When turning the Light/Dark Operate Select switch, be careful not to damage the small tabs on the switch. Counterclockwise: Dark Operate (outputs conduct when sensing light is not received). *U.S. Patent no. 4356393 Banner Engineering Corp. * Minneapolis, MN U.S.A. 2 p/n P/N69942 69942 Rev. rev. AB www.bannerengineering.com * Tel: 763.544.3164 MINI-BEAM(R) ac-Voltage Series Installation Guide Sensor Mounting and Alignment MINI-BEAM sensors perform most reliably if they are properly aligned and securely mounted. For maximum mechanical stability, final-mount MINI-BEAM sensors through 18 mm diameter holes by their threaded barrel (where available), or use a mounting bracket. A complete selection of mounting brackets is available. Visit www.bannerengineering.com/69942, or contact the factory for information on mounting options. If the MINI-BEAM sensor is receiving its light signal, the red LED Alignment indicator will be ON and flashing at a rate proportional to the signal strength (faster = more signal). Move the sensor (or move the retro target, if applicable) up-down-right-left (including angular rotation) to find the center of the movement zone within which the LED indicator remains ON. Reducing the Gain setting will reduce the size of the movement zone, and enable more precise alignment. Begin with line-of-sight positioning of the MINI-BEAM sensor to its emitter (opposed-mode sensing) or to its target (all other sensing modes). When using a retroreflective sensor, the target is the retroreflector ("retro target"). For diffuse or convergent sensing modes, the target is the object to be detected. Repeat the alignment motions after each Gain reduction. When optimum alignment is acheived, mount sensor(s) (and the retro target, if applicable) solidly in that position. Increase the Gain to maximum. Apply power to the sensor (and to the emitter, if using the opposed mode). Advance the 15-turn Gain control to maximum (clockwise end of rotation), using a small flat-blade screwdriver. The Gain control is clutched at both ends to avoid damage, and will "free-wheel" when either endpoint is reached. See Sensor Features illustration on page 2. Test the sensor by placing the object to be detected in the sensing position, then removing it. The Alignment indicator LED should come ON when the sensing beam is established (Light condition), and go OFF when the beam is broken (Dark condition). If the Alignment indicator LED stays ON for both sensing conditions, consider the following tips for each sensing mode. Alignment Tips Opposed-Mode Alignment Light condition: no object in beam Dark condition: object in beam Emitter Diffuse-Mode Alignment ct je Ob Light condition: object in beam Dark condition: no object in beam ct je Ob Receiver "Flooding" occurs when a portion of the sensing beam passes around the object to be sensed. "Burn-through" occurs when a portion of the emitter's light energy passes through a thin or translucent object, and is sensed by the receiver. To correct either problem, do one or more of the following to reduce the light energy: * Reduce the Gain adjustment on the receiver. * Add an aperture to one or both lenses. (MINI-BEAM apertures, available from Banner, fit neatly inside the lens assembly.) * Intentionally misalign the emitter and receiver. tro Re et rg a T Retroreflective-Mode Alignment If the Alignment LED does not go OFF when the object is removed from the beam, the sensor is probably detecting light reflected from some background object. To remedy this problem: * Reduce the reflectivity of the background by painting the surface(s) flat-black, scuffing any shiny surface, or drilling a large hole, directly opposite the diffuse sensor. * Move the sensor closer to the object to be detected and reduce the Gain adjustment. Rule of thumb for diffuse sensing: The distance to the nearest background object should be at least three times the sensing distance. w Lo ivity t ec und l f Re kgro c Ba Convergent-Mode Alignment Light condition: object in beam Dark condition: no object in beam jec Ob t Light condition: no object in beam Dark condition: object in beam A highly reflective object may reflect enough light back to a retroreflective sensor to allow that object to slip through the beam, without being detected. This problem is called "proxing," and the following methods may be used to correct it: * Position the sensor and retro target so the beam will not strike a shiny surface perpendicular to the sensor lens. * Reduce the Gain adjustment. * Add a polarizing filter (for model SM2A312LV). The sensing energy of a convergent-mode sensor is concentrated at the specified focus point (see page 1). Convergent-mode sensors are less sensitive to background reflections, compared with diffuse-mode sensors. However, if background reflections are a problem: * Skew the sensor position at a 10 to 25 angle to eliminate direct reflections from shiny background surfaces. * Reduce the reflectivity of the background by painting the surface(s) flat-black, scuffing any shiny surface, or drilling a large hole, directly opposite the sensor. * Reduce the Gain adjustment. Banner Engineering Corp. * Minneapolis, MN U.S.A. www.bannerengineering.com * Tel: 763.544.3164 P/N 69942Rev. rev.BA p/n 69942 3 MINI-BEAM(R) ac-Voltage Series Installation Guide Fiber Installation Plastic Fiber Installation Glass Fiber Installation 1) Install the O-ring (supplied with the fiber) on each fiber end, as shown in the drawing. 2) While pressing the fiber ends firmly into the ports on the sensor front, slide the U-shaped retaining clip (supplied with the sensor) into the slot in the sensor's barrel, until it snaps into place. 1) With supplied fiber cutter, make a clean cut at control ends of fibers. 2) Unlock the fiber gripper as shown below. Apply appropriate fiber adaptors prior to fiber insertion, if needed. 3) Gently insert the prepared fiber ends into the ports, as far as they will go. 4) Slide the fiber gripper back to lock, as shown below. Retaining Clip Gripper Unlock Lock O-ring Sensor Face Adapters for 0.25- and 0.5-mm fibers Trimmed fiber control ends Plastic fiber receiver port Plastic fiber emitter port Specifications Supply Voltage and Current 24 to 240V ac (50/60 Hz), 250V ac maximum Supply Protection Circuitry Protected against transient voltages Output Configuration SPST SCR solid-state relay with either normally closed or normally open contact ("light/ dark operate" selectable); 2-wire hookup Output Rating Minimum load current 5 mA; maximum steady-state load capability 300 mA to 50C ambient (122F) 100 mA to 70C ambient (158F) Inrush capability: 3 amps for 1 second (non repetitive); 10 amps for 1 cycle (non repetitive) OFF-state leakage current: less than 1.7 mA rms ON-state voltage drop: 5 volts at 300 mA load, 10 volts at 15 mA load Output Protection Circuitry Protected against false pulse on power-up Output Response Time Opposed: 2 millisecond on and 1 millisecond off; Non-Polarized and Polarized Retro, Convergent, and Plastic Fiber Optic: 4 milliseconds on and off; Diffuse and Glass Fiber Optic: 8 milliseconds on and off. OFF response time specification does not include load response of up to 1/2 ac cycle (8.3 milliseconds). Response time specification of load should be considered when important. (NOTE: 300 millisecond delay on power-up.) Repeatability Opposed: 0.3 milliseconds; Non-Polarized and Polarized Retro, Convergent, and Plastic Fiber Optic: 1.3 milliseconds; Diffuse and Glass Fiber Optic: 2.6 milliseconds. Response time and repeatability specifications are independent of signal strength. Adjustments Light/Dark Operate Select switch, and 15-turn slotted brass screw Gain (sensitivity) adjustment potentiometer (clutched at both ends of travel). Both controls are located on the rear panel of the sensor and are protected by a gasketed, clear acrylic cover (see page 2). Indicators Red indicator LED on rear of sensor is ON when the load is energized. Construction Reinforced thermoplastic polyester housing, totally encapsulated, o-ring sealing, acrylic lenses, stainless steel screws Environmental Rating Meets NEMA standards 1, 2, 3, 3S, 4, 4X, 6, 12, and 13; IEC IP67. Connections PVC-jacketed 2-conductor 2 m (6.5') or 9 m (30') cables, or 3-pin Micro-style QD fitting; QD cables available separately. Operating Conditions Temperature: -20 to +70C (-4 to +158F) Maximum relative humidity: 90% at 50C (non-condensing) Application Notes * Overload conditions can destroy ac MINI-BEAM sensors. Directly wiring sensor without load series, across hot and neutral will damage sensor (except emitter models). * Low-voltage use requires careful analysis of the load to determine if the sensor's leakage current or on-state voltage will interfere with proper operation of the load. * The false-pulse protection feature may cause momentary drop-out of the load when the sensor is wired in series or parallel with mechanical switch contacts. Certifications Banner Engineering Corp Limited Warranty Additional information on this product is immediately available online at www.bannerengineering.com/69942 Banner Engineering Corp. warrants its products to be free from defects in material and workmanship for one year following the date of shipment. Banner Engineering Corp. will or replace, information, free of charge, anyincluding product of itsexcess manufacture which, at the time it is returned to theand factory, is found to have been defective during the warranty period. This View or downloadrepair additional gain curves, beam patterns accessories. doesanot cover damage or liability for misuse, abuse, or the improperatapplication or installation of Banner373-6767. product. For further assistance,warranty contact Banner Engineering Applications Engineer (763) 544-3164 orthe(888) THIS LIMITED WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED (INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE), AND WHETHER ARISING UNDER COURSE OF PERFORMANCE, COURSE OF DEALING OR TRADE USAGE. WARRANTY: Engineering Corp. warrants its products to beIN free fromSHALL defects forENGINEERING one year. CORP. BE This Warranty is exclusive andBanner limited to repair or, at the discretion of Banner Engineering Corp., replacement. NO EVENT BANNER Corp. will repair orANY replace, free of charge,LOSSES, any product of its manufacture found to LIABLEBanner TO BUYEREngineering OR ANY OTHER PERSON OR ENTITY FOR EXTRA COSTS, EXPENSES, LOSS OF PROFITS, OR ANY INCIDENTAL, CONSEQUENTIAL OR SPECIAL FROMto ANY PRODUCT DEFECT OR FROM THE USE ORperiod. INABILITY This TO USEwarranty THE PRODUCT, WHETHER be defective at theDAMAGES time itRESULTING is returned the factory during the warranty does not ARISING IN CONTRACT OR WARRANTY, STRICT LIABILITY, NEGLIGENCE, OR OTHERWISE. cover damage or liabilitySTATUTE, for theTORT, improper application of Banner products. This warranty is in lieu of any Banner Engineering Corp. reserves the right to change, modify or improve the design of the product without assuming any obligations or liabilities relating to any product other warranty either expressed or implied. previously manufactured by Banner Engineering Corp. P/N 69942 rev. A Banner Engineering Corp., 9714 Tenth Ave. No., Minneapolis, MN 55441 * Phone: 763.544.3164 * www.bannerengineering.com * Email: sensors@bannerengineering.com