LX Series Part-Sensing Light Screen For Sensing Small or Flat Parts at High Speeds Features * E mitter and receiver pair produce a strobed web of modulated light beams, in 8 lengths, 2 sensing ranges * S imple, economical and highly reliable means of sensing small parts or flat items which pass anywhere through the light screen * F ast response, output includes a 5-millisecond pulse stretcher for interfacing reliability * S imple wiring configuration; emitter and receiver do not need a synchronization wire * Rugged, self-contained and compact construction; rated IEC IP65 * B ipolar design offers both NPN (current sinking) and PNP (current sourcing) solid-state outputs Infrared, 880 nm Models Short-Range Models 75-200 mm (3"-8") 5.6 mm dia. Minimum Object Detection Size Standard-Range Models 150 mm - 2 m (6"-6.5') 9.5 mm dia. Minimum Object Detection Size Sensing Array Length LX3ESR Emitter LX3RSR Receiver LX3E Emitter LX3R Receiver 67 mm (2.6") LX6ESR Emitter LX6RSR Receiver LX6E Emitter LX6R Receiver 143 mm (5.6") LX9E Emitter LX9R Receiver 218 mm (8.6") LX12E Emitter LX12R Receiver 295 mm (11.6") -- LX15E Emitter LX15R Receiver 371 mm (14.6") -- LX18E Emitter LX18R Receiver 447 mm (17.6") -- LX21E Emitter LX21R Receiver 523 mm (20.6") -- LX24E Emitter LX24R Receiver 599 mm (23.6") -- LX12ESR Emitter LX12RSR Receiver Cable* Supply Voltage Output Type 2 m (6.5') 5-wire Integral cable 10-30V dc Bipolar NPN/PNP Sizes not listed available on request; contact factory * Integral cable models are listed; for 5-pin Euro-style 150 mm (6") QD pigtail, add suffix "Q" to model number (e.g., LX3EQ). QD models require a mating cable; see page 4. 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. Printed in USA 02/09 P/N 108865 rev. D LX Series Part-Sensing Light Screens Theory of Operation Sensing is most effective in the center 80% of the sensing range The LX Series light screen sensing system consists of two self-contained units: an emitter and a receiver of equal size and sensing range. The emitter has multiple infrared LEDs spaced at 9.5 mm (0.38") increments, and the receiver has corresponding photodiodes. The emitter sequentially fires each infrared LED. Multiple photodiodes in the receiver recognize each of the emitted pulses; the result is a "cross-hatched" optical pattern. Optical synchronization enables the receiver to recognize light from each of the emitter LEDs. The optical crosshatch pattern enables the LX system to detect targets of very small diameter, and extremely thin, flat objects - as thin as a piece of paper or an envelope. For small diameter objects, the sensing resolution is less effective at the exact center (see M.O.D.S. specification) of the sensing range and at the extreme edges of the pattern (close to the emitter and receiver faces); sensing should take place within the center 80 percent of the range, as shown in Figure 1. Receiver Emitter Figure 1.LX Series optical crosshatch pattern LX Series sensors are available in two ranges: short and standard. Short-range emitters and receivers may be located as close together as 75 mm (3"), with a maximum separation of 200 mm (8"). Standard-range sensors may be separated 150 mm to 2 m (6" to 6.5') apart. Both emitter and receiver must be either short-range or standard models, of the same length. Detection sensitivity varies somewhat, depending on the distance between the sensors and the position of the target object. 14.0 mm (0.55") 1.8 mm (0.07") For closer-range applications, the working range of any sensor pair can be reduced by connecting the sensor's Select wire to 0-2V dc (see Specifications; Sensing Range). 10.6 mm (0.42") 2.3 mm (0.09") The receiver output interfaces directly with dc loads or circuits up to 30V dc, and offers both sinking (NPN) and sourcing (PNP) output transistors. Outputs conduct whenever a beam is broken. A 5 millisecond pulse stretcher (OFF-delay) is included to improve interfacing reliability. 5.9 mm (0.23") 1.8 mm (0.07") Typical Applications Typical applications for the LX Series include parts ejection verification and package detection on a conveyor. NOTE: (2) T-nuts and (2) M5 - 0.8 x 8 screws are included with each sensor 16.8 mm (0.66") 31.8 mm (1.25") M3 x 0.5 x 5 (4) max. torque 1.1 Nm (10 in-lbs) 25.4 mm (1.00") Installation and Alignment 10.3 mm (0.4") Reliable performance of the LX series light screen systems requires a simple alignment process. Mounting locations should be as free from vibration as possible. Sensors may be mounted using the accessory brackets (available separately; see page 4) or using the T-slots in the sensor housings. Loosely mount the emitter and receiver at their operating locations with their front panels opposite each other, and at approximately the same level. After mechanical alignment is completed, the sensors can be wired and power applied. To obtain optical alignment, adjust the emitter until the receiver detects alignment (the yellow LED turns OFF). For best alignment, position the emitter in the middle of the positions that cause a clear receiver condition. After alignment is achieved and the bracket hardware is tightened, position a pencil or similar object within the sensing area to verify that it can be reliably detected throughout the sensing area. L LED 1 LED 2 36 mm (1.4") Model Length (L) LX3 113.4 mm (4.46") LX6 189.6 mm (7.46") LX9 265.8 mm (10.46") LX12 342.0 mm (13.46") LX15 418.2 mm (16.46") LX18 494.4 mm (19.46") LX21 570.6 mm (22.46") LX24 646.8 mm (25.46") Figure 2. LX features and dimensions 2 P/N 108865 rev. D Banner Engineering Corp. * Minneapolis, MN U.S.A. www.bannerengineering.com * Tel: 763.544.3164 LX Series Part-Sensing Light Screens Specifications Supply Voltage and Power 10 to 30V dc (10% maximum ripple) at less than 1 watt each for emitter and receiver (exclusive of load) Supply Protection Circuitry Protected against reverse polarity and transient voltages Sensing Range Short-Range Models Standard-Range Models Normal (see hookups) Reduced 100 to 200 mm (4" to 8") 75 to 150 mm (3" to 6") 300 mm to 2 m (1' to 6.5') 150 mm to 600 mm (6" to 24") Output Configuration Bipolar: One current sourcing (PNP) and one current sinking (NPN) open-collector transistor Output Rating 125 mA maximum each output Off-state leakage current: less than 5 microamp Output saturation voltage (PNP output): < 1 volt at 10 mA and < 1.5 volts at 100 mA Output saturation voltage (NPN output): < 0.5 volts at 10 mA and < 0.6 volts at 100 mA Output Protection Circuitry Protected against false pulse on power-up and continuous overload or short circuit of outputs Output Response Time LX3: 0.8 ms ON-time; 6 ms OFF-time (5 ms OFF-delay) LX6: 1.6 ms ON-time; 7 ms OFF-time (5 ms OFF-delay) LX9: 2.4 ms ON-time; 7.5 ms OFF-time (5 ms OFF-delay) LX12: 3.2 ms ON-time; 8.5 ms OFF-time (5 ms OFF-delay) Minimum Object Detection Size (M.O.D.S.) Smallest diameter rod that can be detected in sensing range: S hort-Range: 5.6 mm (0.22") Standard-Range: 9.5 mm (0.38") Indicators Emitter: LED1 (green) ON: Power ON, good sensor OFF: Reduced Range LED2 (red) ON: Reduced range OFF: Normal range Flashing: Emitter hardware failure Receiver: LED1 (yellow) ON: Output conducting OFF: Output not conducting LED2 (bicolor green/red) Green: Normal range Red: Reduced range Flashing Red: Receiver hardware failure LX15: 4.0 ms ON-time; 9 ms OFF-time (5 ms OFF-delay) LX18: 4.8 ms ON-time; 10 ms OFF-time (5 ms OFF-delay) LX21: 5.6 ms ON-time; 11 ms OFF-time (5 ms OFF-delay) LX24: 6.4 ms ON-time; 11.5 ms OFF-time (5 ms OFF-delay) Construction Aluminum housing, die cast zinc with black e-coat painted endcaps, acrylic lens window Environmental Rating Meets IEC IP65 Connections 2 meter (6.5') 5-conductor (with drain) pvc-jacketed attached cable or 5-pin Euro-style 150 mm (6") QD pigtail, depending on model Operating Conditions Temperature: -20 to +70 C (-4 to +158 F) Max. rel. humidity: 90% at 50 C (non-condensing) Application Notes i) The best sensing resolution occurs within the center 80% of the sensing range (see Figure 1). ii) Low-profile packages can be reliably detected. iii) Outputs are active while the light screen is interrupted. iv) For reliable detection, successive parts must be spaced up to the total of ON-time plus OFF-time apart. (ie: 12 milliseconds for the LX12) Certifications Hookups Cabled Models Receiver Emitter bn bk gy Receiver bn 10 - 30V dc bu wh Quick-Disconnect Models Load Load Select shield* Normal 5-30V dc Reduced 0 - 2V dc 10 - 30V dc bu wh No Connection bk No Connection gy Select shield* bn bn 10 - 30V dc bu wh Normal 5-30V dc Reduced 0 - 2V dc Emitter bk gy Load Load Select shield* 10 - 30V dc bu wh Normal 5-30V dc Reduced 0 - 2V dc No Connection bk gy No Connection Select shield* Normal 5-30V dc Reduced 0 - 2V dc *It is recommended that the shield wire be connected to earth ground or DC common. Banner Engineering Corp. * Minneapolis, MN U.S.A. www.bannerengineering.com * Tel: 763.544.3164 P/N 108865 rev. D 3 LX Series Part-Sensing Light Screens Accessories Quick-Disconnect (QD) Cables Style Model 5-Pin Euro-style, Straight with shield Length MQDEC2-506 MQDEC2-515 MQDEC2-530 Dimensions 2 m (6.5') 5 m (15') 9 m (30') Pinout o15 mm (0.6") White Wire M12 x 1 44 mm max. (1.7") Brown Wire Blue Wire 38 mm max. (1.5") 5-Pin Euro-style, Right-Angle, with shield MQDEC2-506RA MQDEC2-515RA MQDEC2-530RA Black Wire 2 m (6.5') 5 m (15') 9 m (30') Gray Wire 38 mm max. (1.5") M12 x 1 o15 mm (0.6") Mounting Brackets *End-cap brackets; set of 2 *Zinc-plated cold rolled steel *Hardware included for mounting brackets to sensor SMBLX *Back-mount bracket for secure one-end mounting * Zinc-plated cold rolled steel *Hardware included for mounting bracket to sensor SMBLXR 19.1 mm (0.75") 39.9 mm (1.6") O 63.5 mm (2.50") 4 x 5.1 mm (0.20) 15.9 mm (0.63") 1.835 mm (0.07") 2x R 4.28 mm (0.17") 6.4 mm (0.25") O 26.1 mm (1.03") 4 x 6.4 mm (0.25") O 16.2 mm (0.64") 2 x 19.1 mm (0.75") 12.7 mm (0.50") 40 4 x 5.2 mm (0.205") 25.4 mm (1.00") 70 6.4 mm (0.25") 12.7 mm ( 0.50") 32.0 mm (1.26") 6.35 mm (0.25) 2 x 5.2 mm (0.21") 23.5 mm (0.93") 2x 3.3 mm (0.13") 51.3 mm (2.02") 8.9 mm (0.35") 38.1 mm (1.5") 38.1 mm (1.5") LX Series Lens Shields Lens Shield Model Number Fits LX Series Sensor Model LXS3 LX3 LXS6 LX6 LXS9 LX9 LXS12 LX12 LXS15 LX15 LXS18 LX18 LXS21 LX21 LXS24 LX24 Self-adhesive polycarbonate lens shields protect sensor lens window from impact or weld flash. When shields are installed on both emitter and receiver, excess gain is reduced by 36% (max. operating range reduces by 20%). WARRANTY: Banner Engineering Corp. warrants its products to be free from defects for one year. Banner Engineering Corp. 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. P/N 108865 rev. D Banner Engineering Corp., 9714 Tenth Ave. No., Minneapolis, MN USA 55441 * Phone: 763.544.3164 * www.bannerengineering.com * Email: sensors@bannerengineering.com