MINI-BEAM(R) SM2A312D Self-contained AC-operated Diffuse Mode Sensors * Compact, modulated, self-contained diffuse proximity mode sensors for 24-240V ac operation * 2-wire hookup for convenient installation * Range to 380 mm (15 in) (referenced to 90% reflectance white test card) * Switch-selectable for light operate or dark operate * SPST SCR solid-state output switches up to 300mA; low leakage current and saturation voltage * Rugged, epoxy-encapsulated construction: meets NEMA standards 1, 2, 3, 3S, 4, 4X, 12 and 13; IEC IP67 * Physically and electrically interchangeable with 18 mm barrel-type photoelectrics Infrared, 880 nm MINI-BEAM Diffuse Mode Models Range Cable Supply Voltage Output Type Excess Gain Beam Pattern Performance based on 90% reflectance white test card 1000 SM2A312D SM2A312D SM2A312DQD 380 mm (15 in) 2 m (6.5 ft) 3-Pin Micro QD 24-240V ac SPST Solid-state 2-Wire E X C E S S G A I N Diffuse Mode 100 SM2A312D 15 mm 0.6 in Diffuse Mode 10 mm 0.4 in 5 mm 0.2 in 0 10 0 5 mm 0.2 in 10 mm 0.4 in 15 mm 1 1 mm .04 in 0.6 in 0 10 mm .4 in 100 mm 4 in 1000 mm 40 in 75 mm 150 mm 225 mm 300 mm 375 mm 3.0 in 6.0 in 9.0 in 12.0 in 15.0 in DISTANCE DISTANCE For Standard MINI-BEAMs: i) 9 m (30 ft) cables are available by adding suffix "W/30" to the model number of any cabled sensor (e.g. - SM2A312D W/30). ii) A 150 mm (6 in.) long pigtail cable with attached QD connector is available by adding suffix "QDP" to the model number of any MINI-BEAM sensor (e.g. - SM2A312DQDP). See page 5 for more information. iii) A model with a QD connector requires an accessory mating cable. See page 8 for more information. Printed in USA P/N 03376L7G MINI-BEAM(R) Sensors SM2A312D MINI-BEAM Installation and Alignment Proper operation of the SM2A312D sensor requires that it be mounted securely and aligned properly. Excessive movement or vibration can result in intermittent or false operation caused by loss of alignment. For best results, final-mount the SM2A312D in an 18mm-hole by its threaded barrel or use a mounting bracket (see page 6). 1) Begin with the sensor at the desired distance from the object to be sensed, and at the approximate position where it will be mounted. The background should be as far behind the object as possible (at least three times the distance of the sensor from the object), and as dark a color as possible compared to the object. Ideally, the object should present its largest reflective surface to the sensor. Diffuse Mode Alignment t jec Ob SM2A312D 2) Switch the sensor to light-operate mode. With the object in the sensing position, apply power to the sensor, and advance the 15-turn GAIN control to maximum (clockwise end of rotation). The GAIN control is clutched at both ends to avoid damage, and will "free-wheel" when either endpoint is reached. Up ht Rig If the sensor is "seeing" its reflected light, the alignment LED should be "on". Move the sensor up-down-right-left (include angular rotation) to find the center of movement zone within which the LED remains lit. Reducing the GAIN setting (if necessary) will reduce the size of the movement zone and make more precise alignment possible. 3) Repeat the alignment motions after each GAIN reduction. When you are satisfied that you have obtained optimum alignment, mount the sensor solidly in that position. Increase the GAIN to maximum. Test the system by removing the object from the sensing position. The receiver LED indicator should go "off". If the LED indicator does not go "off", the sensor is reacting to light reflected from a background surface. Reduce the GAIN setting until the alignment indicator goes "off", plus two additional full turns. Again place the object in the sensing position. If the alignment indicator does not come "on", the sensor is receiving as much or more light energy from the background as from the object. Consider the following alternatives: a) wn Do SM2A312D 15 Turn Gain Adjustment and Light/Dark Operate Switch* Gasketed Acrylic Cover move the sensor closer to the object and reduce the sensitivity (GAIN); b) reduce background reflectivity by painting the background with flat-black paint, or by scuffing the background or cutting a hole through it; c) ft Le Red LED lights when the sensor's output is conducting tilt the sensor or the background so that the sensing beam is not perpendicular to the background. * Note regarding Light/Dark operate switch: * Turn switch fully clockwise for light operate (sensor outputs conduct when object is present) * Turn switch fully counterclockwise for dark operate (sensor outputs conduct when object is absent) page 2 MINI-BEAM(R) Sensors SM2A312D MINI-BEAM AC Product Specifications Supply Voltage and Current 24 to 240V ac (50/60 Hz), 250V ac max 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 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 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 rear panel of sensor and protected by a gasketed, clear acrylic cover. Indicators Red indicator LED on rear of sensor is "ON" when the load is energized Construction Reinforced VALOX(R) housing, totally encapsulated, o-ring sealing, acrylic lenses, and stainless steel screws Environmental Rating Meets NEMA standards 1, 2, 3, 3S, 4, 4X, 12, and 13; IEC IP67 Connections PVC-jacketed 2-conductor 2 m (6.5ft) or 9 m (30ft) cables, or 3-pin micro-style quick disconnect (QD) fitting are available. QD cables are ordered separately. See page 8. Operating Temperature Temperature: -20 to +70C (-4 to +158F) Maximum Relative Humidity: 90% at 50C (non-condensing) Application Notes i) ac MINI-BEAMs may be destroyed from overload conditions ii) Use on low voltage requires careful analysis of the load to determine if the leakage current or on-state voltage of the sensor will interfere with proper operation of the load iii) 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 VALOX(R) is a registered trademark of General Electric Company page 3 MINI-BEAM(R) Sensors SM2A312D MINI-BEAM AC Hookup Diagrams AC Sensors with Attached Cable AC Sensors with Quick Disconnect (3-Pin Micro-Style) rd/bk bn rd/wh 24-240V ac bu Load 24-240V ac Load gn 3-Pin Micro-Style Pin-out (Cable Connector Shown) Quick Disconnect (QD) Option Green Wire AC MINI-BEAM sensors are sold with either a 2 m (6.5 ft) or a 9 m (30 ft) attached PVC-covered cable, or with a 3-pin micro-style QD cable fitting. Red/Black Wire Red/White Wire AC QD sensors are identified by the letters "QD" in their model number suffix. For more information on mating QD cables, see page 8. MINI-BEAM Dimension Information MINI-BEAM AC Sensor with Integral Cable 3.2 mm (0.13 in) 12.2 mm (0.48 in) 30.7 mm (1.21 in) o 3 mm Clearance (2) 24.1 mm (0.95 in) M18 x 1 x 15 mm Thread (Mounting Nut Supplied) 19.1 mm (0.75 in) 66.0 mm (2.60 in) page 4 1/2-20 UNF Thread Quick Disconnect 20.0 mm (0.79 in) 2 m (6.5 ft) Cable Mounting Peg (o 6.3 mm x 2.5 mm) MINI-BEAM AC Sensor with Quick-Disconnect 27.4 mm (1.08 in) MINI-BEAM(R) Sensors SM2A312D MINI-BEAM MODIFICATIONS Model Suffix Modification Description Example of Model Number W/30 9 meter (30 ft) cable All MINI-BEAM sensors may be ordered with an integral 9 m (30 ft) cable in place of the standard 2 m (6.5 ft) cable SM2A312D W/30 QDP SM2A312DQDP Replacement Lens Assemblies Right-Angle Reflectors MINI-BEAM lens assemblies are field-replaceable. MINI-BEAM right-angle reflectors are useful for tight sensing locations. NOTE: These reflectors significantly decrease excess gain. Model UC-300L Pigtail Quick Disconnect All MINI-BEAMs may be built with a 150 mm (6 in) long integral cable which is terminated with the appropriate QD connector. Description Replacement lens for SM2A312D Model Description RAR300SM * Side mount reflector * Profile dimension of 14 mm (0.56 in) in the direction of the scan RAR300FM * Front mount reflector that attaches directly to the threaded barrel of most MINI-BEAMs * Profile dimension of 34 mm (1.35 in) in the direction of the scan page 5 MINI-BEAM(R) Sensors SM2A312D Mounting Brackets Model Description R 24.1 mm (0.95 in) R 5.1 mm (0.20 in) 10 (TYP) 15 (2) CL 31.8 mm (1.25 in) 4.32 mm (0.170 in) Slot (2) 20.3 mm (0.80 in) 20 SMB312S Stainless steel 2-axis, side mounting bracket o 3.05 mm Slot (0.120 in) o 3.05 mm (0.120 in) 20.1 mm (0.79 in) 90 2.5 mm (0.10 in) R 3.1 mm (0.12 in) (2) 45.5 mm (1.79 in) R 24.1 mm (0.95 in) R 5.1 mm (0.20 in) 15.2 mm (0.60 in) 15 (2) CL 31.8 mm (1.25 in) 20 SMB312PD Stainless steel 18 mm barrelmounting bracket o 4.6 mm Slot (0.18 in) o 4.6 mm (0.18 in) R 3.1 mm (0.12 in) (2) 18.42 mm (0.725 in) 40.6 mm (1.60 in) 90 2.5 mm (0.10 in) 45.5 mm (1.79 in) 4.3 mm Slot (2) (0.17 in) 10 (2) 90 9.1 mm (0.36 in) 10 (2) SMB312B Stainless steel 2-axis, bottom mounting bracket 2.5 mm (0.10 in) 3.1 mm Slot (2) (0.12 in) 24.1 mm (0.95 in) 8.6 mm (2) (0.34 in) 17.3 mm (2) (0.68 in) o 6.9 mm (0.27 in) 23.4 mm 11.4 mm (0.92 in) (0.45 in) 35.0 mm (2) (1.38 in) 50.8 mm (2.00 in) CL 6 mm (0.2 in) 6 mm (0.2 in) 5 mm (0.2 in) (2x) SMB46L 15 mm (0.6 in) o36 mm (1.4 in) o6.5 mm (0.26 in) (6x) 8 mm (0.3 in) 16 mm (0.6 in) * "L" bracket * 14 ga 316 stainless steel 65 mm (2.6 in) 54 mm (2.1 in) page 6 2 mm (.1 in) 27 mm (1.1 in) MINI-BEAM(R) Sensors SM2A312D Mounting Brackets Model Description Dimensions CL 10 mm (0.4 in) 34 mm (1.3 in) 17 mm (0.7 in) 6 mm (0.2 in) 6 mm (0.2 in) SMB46S * "S" bracket 3.5 mm (0.14 in) 15 mm (0.6 in) o36 mm (1.4 in) o6.5 mm (0.26 in) (6x) 8 mm (0.3 in) 5 mm (0.2 in) (4x) 16 mm (0.6 in) * 14 ga 316 stainless steel 65 mm (2.6 in) 2 mm (.1 in) 54 mm (2.1 in) 27 mm (1.1 in) 16 mm (0.6 in) 34 mm (1.3 in) CL 17 mm (0.7 in) 13 mm (0.5 in) 3.5 mm (0.14 in) 6 mm (0.2 in) SMB46U * "U" bracket * 14 ga 316 stainless steel 6 mm (0.2 in) 5 mm (0.2 in) (4x) 15 mm (0.6 in) 8 mm (0.3 in) 16 mm (0.6 in) o36 mm (1.4 in) o6.5 mm (0.26 in) (6x) 16 mm (0.6 in) 65 mm (2.6 in) 2 mm (.1 in) 54 mm (2.1 in) 40.0 mm (1.60 in) SMB18C * 18 mm split clamp black VALOX(R) bracket * Stainless steel mounting hardware included 42.4 mm (1.67 in) 13 mm (0.5 in) 14.0 mm (0.55 in) 2.5 mm (0.10 in) 46.0 mm (1.81 in) SMB18S * Stainless steel mounting hardware included 70 mm (2.8 in) 21.1 mm (0.83 in) 30.0 mm (1.18 in) * 18 mm swivel, black VALOX(R) bracket 27 mm (1.1 in) 44.5 mm (1.75 in) M5 x 0.8 x 60 mm Screw (2) 10.9 mm (0.43 in) 25.4 mm (1.00 in) 13.0 mm (0.50 in) 36.0 mm (1.42 in) Nut Plate 2.5 mm (0.10 in) Spacer (If Required) Nut Plate 6.4 mm (0.25 in) M5 x 0.8 x 60 mm Screw (2) page 7 MINI-BEAM(R) Sensors SM2A312D Extension Cables (without connectors) The following cables are available for extending the length of existing sensor cable. These are 30 m (100 ft) lengths of MINI-BEAM cable. This cable may be spliced to existing cable. Connectors, if used, must be customer-supplied. Type Model EC312A-100 2-conductor Used with: All MINI-BEAM SM2A312 ac models Micro-Style Quick Disconnect Cables Cable: PVC jacket, polyurethane connector body, nickel-plated brass coupling nut Conductors: 22 or 20 AWG high-flex stranded, PVC insulation, gold-plated contacts Temperature: -40 to +80C (-40 to +176F) Voltage Rating: 250V ac/300V dc (3-pin), 125V ac/150V dc (4-pin) Style 3-Pin Straight Model MQDC-306 MQDC-315 MQDC-330 Length 2 m (6.5 ft) 5 m (15 ft) 9 m (30 ft) Dimensions Pin-out o15 mm (0.6 in) o1/2-20UNF-2B 44 mm max. (1.7 in) Green Wire Red/White Wire 38 mm max. (1.5 in) 3-Pin Right-angle MQDC-306RA MQDC-315RA MQDC-330RA 2 m (6.5 ft) 5 m (15 ft) 9 m (30 ft) Red/Black Wire 38 mm max. (1.5 in) 1/2-20UNF-2B o15 mm (0.6 in) WARRANTY: Banner Engineering Corporation warrants it products to be free from defects for one year. Banner Engineering Corporation will repair or replace, free of charge, any product of its manufacture found to be defective at the time it is returned to the factory during the warranty period. This warranty does not cover damage or liability for the improper application of Banner products. This warranty is in lieu of any other warranty either expressed or implied. ! WARNING These photoelectric presence sensors do NOT include the self-checking redundant circuitry necessary to allow their use in personnel safety applications. A sensor failure or malfunction can result in either an energized or a de-energized sensor output condition. Never use these products as sensing devices for personnel protection. Their use as a safety device may create an unsafe condition which could lead to serious injury or death. Only MINI-SCREEN(R), MULTI-SCREEN(R), MICRO-SCREENTM, MACHINE-GUARDTM and PERIMETER-GUARDTM Systems, and other systems so designated, are designed to meet OSHA and ANSI machine safety standards for point-of-operation guarding devices. No other Banner sensors or controls are designed to meet these standards, and they must NOT be used as sensing devices for personnel protection. Banner Engineering Corp., 9714 Tenth Ave. No., Minneapolis, MN 55441 Telephone: (612) 544-3164 FAX (applications) (612) 544-3573