Distance-settable Photoelectric Sensor E3Z-LS Selectable Foreground/Background Suppression Photoelectric Sensor * Stable sensing regardless of target's color or size. * Adjustable sensing distance. * Unique Algorithm minimizes external interference from fluorescent lighting. * Visible light ensures easy alignment. * Available in pre-wired or connector-ready configuration. Ordering Information Sensors Sensing method (selectable) Appearance BGS/FGS diffuse Connection method Pre-wired (2-m cable) Sensing distance (white paper) Model NPN output 20 mm 40 mm 200 mm PNP output E3Z-LS61 E3Z-LS81 E3Z-LS66 E3Z-LS86 Incident light level threshold (fixed) BGS (at min. setting) BGS (at max. setting) M8 Connector FGS (at min. setting) FGS (at max. setting) Accessories (Order Separately) Sensor I/O Connectors Cable specification Standard M8 cable Appearance Straight L-shaped Cable type 2m 4-wire Model XS3F-M421-402-A 5m XS3F-M421-405-A 2m XS3F-M422-402-A 5m XS3F-M422-405-A Distance-settable Photoelectric Sensor E3Z-LS 1 Mounting Brackets (Same for Entire E3Z Series) Appearance 2 Qty Remarks Model 1 Mounting Bracket E39-L153 1 E39-L104 1 Horizontal E39-L43 Mounting Bracket 1 Horizontal E39-L142 Protective Cover/ Mounting Bracket 1 Rear-connecting E39-L44 Mounting Bracket 1 Protective Cover/ E39-L98 Mounting Bracket Distance-settable Photoelectric Sensor Appearance E3Z-LS Qty Remarks Model 1 set E39-L150 Sensor Adjusters For easy mounting and adjustment with aluminum frames and rails, such as those on conveyors For horizontal adjustment 1 set E39-L151 1 set Compact Protective Cover/ E39-L144 Mounting Bracket (for E3Z only) Specifications Ratings/Characteristics Sensing method Item Sensing distance (see Operation) Distance-settable NPN output E3Z-LS61 E3Z-LS66 PNP output E3Z-LS81 E3Z-LS86 BGS White or black paper (100 x 100 mm): 20 mm to 200 mm FGS White paper (100 x 100 mm): 40 mm to 200 mm Black paper (100 x 100 mm): 40 mm to 160 mm Adjustable sensing range (see note) White paper (100 x 100 mm): 40 to 200 mm Black paper (100 x 100 mm): 40 to 160 mm Hysteresis (Refer to the "Hysteresis vs. Sensing Distance" graph in the Engineering section of this data sheet.) Reflectivity characteristic (black/white error) 10% of set distance max. Light source (wavelength) Red LED (680 nm) Power supply voltage 12 to 24 VDC 10%, ripple (p-p) 10% max. Current consumption 30 mA max. Control output Load power supply voltage 26.4 VDC max., load current 100 mA max. (residual voltage 1 V max.) Open collector output (NPN or PNP depending on model) Light-ON/Dark-ON switch selectable BGS/FGS selection (wire selectable) BGS: Open or connected to GND FGS: Connected to Vcc (See Operation) Protective circuits Reverse polarity protection, output short-circuit protection, mutual interference prevention Response time Operation or reset: 1 ms max. Distance setting 5-turn adjuster Ambient illumination Incandescent lamp: 3,000 lx max.; Sunlight: 10,000 lx max. Ambient temperature Operating: -25 to 55C, Storage: -40 to 70C (with no icing or condensation) Ambient humidity Operating: 35% to 85%, Storage: 35% to 95% (with no condensation) Insulation resistance 20 M min. at 500 VDC Dielectric strength 1,000 VAC at 50/60 Hz for 1 minute Vibration resistance (destruction) 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions Shock resistance (destruction) 500 m/s2 for 3 times each in X, Y, and Z directions Degree of protection IEC 60529 IP67 Connection method Pre-wired (standard length: 2 m/0.5 m) Indicators Operation indicator (orange), stability indicator (green) Weight (packed state) Material Accessories Pre-wired Sensors, 2 m: Approx. 65 g Case PBT (polybutylene terephthalate) Lens Denaturated polyallylate M8 connector Approx. 20 g Instruction sheet (Mounting Brackets must be purchased separately.) Note: The sensing range of an object that has reflectivity that is similar to a white paper can be adjusted from 40 to 200 mm. The sensing range of an object that has reflectivity that is similar to a black paper can be adjusted from 40 to 160 mm. Distance-settable Photoelectric Sensor E3Z-LS 3 Principle of Operation Background Suppression Background Suppression: Objects beyond the set distance will not be detected. Background Suppression Optical Configuration To ensure reliable background suppression, a minimum separation distance between the set distance and the background is recommended. Please refer to the "Hysteresis vs. Sensing Distance" graph in the Engineering section of this data sheet to determine the minimum separation distance. Separation Distance Receiving Lens 8 mm Near Far Example: A target that has a reflectivity that is similar to a black paper is set to a maximum set distance of 160 mm. Based on the "Hysteresis vs. Sensing Distance" graph, the hysteresis is 5%. The recommended minimum separation distance in this case is 8.0 mm (5% of 160 mm) between the background and the set distance. This means that the background must be at least 8.0 mm behind the set distance. Emitter Emitting Lens Background Target A Set Distance Foreground Suppression Foreground suppression: Objects in front of the set distance will not be detected. Objects with glossy or irregular surface often reflect the light emitted from the sensor in different directions. This phenomenon often leads to false detection. For such objects, a foreground suppression sensor (FGS) or a polarized retro-reflective sensor is the sensor of choice. For applications that do not have space for a reflector, the FGS is ideal. FGS sensors accomplish reliable detection by not detecting the object directly. An FGS sensor uses a background, as a retro-reflective sensor would use a reflector, to reliably detect any object that passes between itself and the background. FGS uses the position on which the light reflected from the background strikes its receiver as a point of reference (see the diagram at right.) A change in switching state occurs when the light strikes the receiver at a different position. Any object that passes between the sensor and the background will reflect the light onto the receiver in a position that will be different from the point of reference (reflection from the background). Example: A target that has a reflectivity that is similar to a black paper is set to a maximum set distance of 160 mm. Based on the "Hysteresis vs. Sensing Distance" graph, the hysteresis is 5%. The recommended minimum separation distance in this case is 8.0 mm (5% of 160 mm) between the background and the set distance, and 8.0 mm between the set distance and the background. This means that the background must be at least 8.0 mm behind the set distance, and the set distance must be at least 8.0 mm behind the target. Foreground Suppression Optical Configuration To ensure reliable foreground suppression, a minimum separation distance between the set distance and the background as well as a minimum separation distance from the target to the set distance is recommended. Please refer to the "Hysteresis vs. Sensing Distance" graph in the Engineering section of this data sheet to determine the minimum separation distance. Separation Distance Receiving Lens 8 mm Near Far Emitter Emitting Lens Target A 8 mm Separation Distance 160 mm 4 Distance-settable Photoelectric Sensor E3Z-LS Background Set Distance Operation Distance threshold (set distance) NEAR Note: The VERY FAR region is supported only for FGS. The incident light level threshold is fixed and cannot be set. Incident light level threshold (not settable) FAR VERY FAR Only for FGS mode BGS FGS NPN Output Model Output transistor status E3Z-LS61 E3Z-LS66 Light ON Timing chart NEAR Mode selection switch FAR Operation ON indicator (orange) OFF ON Output transistor OFF L side (L/ON) Load (e.g., ON OFF relay) (Between brown and black) Dark ON Operation indicator ON (orange) OFF Output ON transistor OFF NEAR FAR BGS/FGS selection method Output circuit BGS: Either leave the pink wire (2) open or connect it to the blue wire (3). D side (D/ON) Brown Operation indicator (orange) Load (e.g., ON OFF relay) (Between brown and black) 12 to 24 VDC 1 Stability indicator (green) Pink FGS 2 Main circuit (Control output) Load (relay) Black 100 mA max. 4 BGS ZD Blue Light ON Operation indicator ON (orange) OFF Output ON transistor OFF NEAR FAR VERY FAR L side (L/ON) NEAR FAR VERY FAR Operation indicator ON (orange) OFF Output ON transistor OFF 0V Connector Pin Arrangement 2 1 Load (e.g., ON relay) OFF (Between brown and black) Dark ON FGS: Connect the pink wire (2) to the brown wire (1). 3 4 3 D side (D/ON) Load (e.g., ON relay) OFF (Between brown and black) Distance-settable Photoelectric Sensor E3Z-LS 5 PNP Output Model Output transistor status E3Z-LS81 E3Z-LS86 Light ON Timing chart NEAR Mode selection switch L side (L/ON) FAR Operation ON indicator (orange) OFF Output ON transistor OFF Load (e.g.,ON relay) OFF (Between blue and black) Dark ON NEAR BGS/FGS selection method Output circuit BGS: Either leave the pink wire (2) open or connect it to the blue wire (3). D side (D/ON) FAR Operation ON indicator (orange) OFF Output ON transistor OFF Brown Stability indicator (green) Operation indicator (orange) FGS ZD Black (Control output) Main circuit Load (e.g., ON relay) OFF (Between blue and black) 4 Pink NEAR FAR VERY FAR Operation indicator ON (orange) OFF ON Output transistor OFF L side (L/ON) NEAR FAR VERY FAR Operation indicator ON (orange) OFF Output ON transistor OFF Load (relay) BGS 0V 3 FGS: Connect the pink wire (2) to the brown wire (1). Connector Pin Arrangement 2 Load (e.g.,ON relay) OFF (Between blue and black) Dark ON 100 mA max. 2 Blue Light ON 12 to 24 VDC 1 1 4 3 D side (D/ON) Load (e.g., ON relay) OFF (Between blue and black) Connectors (Sensor I/O Connectors) Cable core wire jacket color 4 3 2 1 Brown White Blue Black 1 2 3 4 Class For DC XS3F-M421-402-A XS3F-M421-405-A XS3F-M422-402-A XS3F-M422-405-A 6 Distance-settable Photoelectric Sensor E3Z-LS Wire jacket color Connector pin No. Application Brown A Power supply (+V) White B BGS/FGS selection Blue C Power supply (0 V) Black D Output Engineering Data Operating Range Set distance: 40 mm, 200 mm Sensing object: White paper, 100 x 100 mm Y 6 X 4 200-mm setting 2 40-mm setting 0 50 100 150 200 250 Distance X (mm) -2 -4 20 15 X 200-mm set distance 10 5 0 200 400 -6 -15 -8 -20 800 600 Distance X (mm) -5 40-mm set distance -10 20 Set distance: 40 mm, 200 mm Sensing object: White paper, 100 mm x 100 mm Y 18 16 Spot diameter (mm) 8 Operating range Y (mm) Operating range Y (mm) Spot Diameter vs. Sensing Distance FGS BGS 14 12 10 8 6 4 2 50 0 Inclination Characteristics 200-mm set distance 5 40-mm set distance 0 -5 Vertical -10 Inclination + + -15 - - Sensing object Center line -30 -20 -10 0 10 20 30 40 Inclination () 20 Set distance: 40 mm, 200 mm Sensing object: White paper, 100 mm x 100 mm 15 10 40-mm set distance d distanc 5 0 -5 200-mm set distance Inclination nclination -10 + White Paper 250 300 Set distance: 40 mm Set distance: 200 mm 185 mm 199 mm 200 150 100 50 40 mm 36 mm - -15 Sensing object -20 -40 -20 -10 0 10 20 30 4 mm 9 mm 0 mm Center line -30 0 40 White paper Inclination () White paper Black paper Black paper Material Hysteresis vs. Sensing Distance 700 Sensing range (mm) 800 700 600 500 400 300 200 100 Hysteresis differential (%) Black Paper 800 600 500 400 300 200 100 50 250 Sensing distance (mm) 10 Rate of sensing distance change (%) Rate of sensing distance change (%) Set distance: 40 mm, 200 mm Sensing object: White paper, 100 mm x 100 mm 15 FGS Mode Set Distance vs. Sensing Range Sensing range (mm) 200 Horizontal 20 0 150 Short-distance Characteristic Vertical -20 -40 100 Sensing distance (mm) 100 150 200 250 300 0 9 8 7 Black paper 6 5 4 3 White paper 2 1 50 100 150 200 250 300 Set distance (mm) Set distance (mm) 10 0 50 100 150 200 250 Sensing distance (mm) Sensing Distance vs. Material At Set Distance of 40 mm At Set Distance of 200 mm 240 Sensing distance (mm) Sensing distance (mm) 50 40 30 20 10 200 160 120 80 40 0 0 White Veneer Card- Black Black SUS paper board paper rubber Mirror surface Material White Veneer Card- Black Black SUS paper board paper rubber Mirror surface Material Distance-settable Photoelectric Sensor E3Z-LS 7 Nomenclature Set distance adjuster (5-turn adjustment) Stability indicator (green) Operation indicator (orange) Operation selector Dimensions Unit: mm (inch) Sensors with M8 Connectors Pre-wired Sensors E3Z-LS61 E3Z-LS81 E3Z-LS66 E3Z-LS86 20 (0.79) Operation indicator (orange) 20 (1.79) 12.7 8 12.7 8 Operation indicator (orange) 4.3 4.3 10.8 (0.43) 10.4 10.8 (0.43) 10.4 Receiver Set distance adjuster Operation selector Stability indicator (green) 17 2 lenses (7 dia.) Set distance adjuster Operation selector Stability indicator (green) 17 2 lenses (7 dia.) 2.1 Receiver Optical axis 31 (1.22) 25.4 18 4 4 2.1 Optical axis 31 25.4 (1.22) 18 4 4 13.5 13.5 Emitter Two, M3 Emitter 4-dia., 4-core vinyl-insulated round cable (conductor cross-sectional area: 0.2 mm2; insulation diameter: 1.1 mm) Standard length: 2 m/0.5 m 8 Distance-settable Photoelectric Sensor 10.4 Two, M3 Connector M8 9.75 E3Z-LS Precautions M8 Connector !Caution Do not connect an AC power supply to the Sensor. If AC power (100 VAC or more) is supplied to the Sensor, it may explode or burn. Be sure to abide by the following precautions for the safe operation of the Sensor. Wiring * Always turn OFF the power supply to the Sensor before connecting or disconnecting the metal connector. * Hold the connector cover to connect or disconnect it. * Secure the connector cover by hand. Do not use pliers, otherwise the connector may be damaged. * If the connector is not connected securely, it may be disconnected by vibration or the proper degree of protection of the Sensor may not be maintained. Mounting Directions Power Supply Voltage and Output Load Power Supply Voltage Make sure that the power supply to the Sensor is within the rated voltage range. If a voltage exceeding the rated voltage range is supplied to the Sensor, it may explode or burn. * Make sure that the sensing side of the Sensor is parallel with the surface of the sensing objects. Normally, do not incline the Sensor towards the sensing object. Load Short-circuiting Do not short-circuit the load, otherwise the Sensor may be damaged. Sensing side Connection without Load Surface of sensing object Do not connect the power supply to the Sensor with no load connected, otherwise the internal elements may explode or burn. Operating Environment Do not use the Sensor in locations with explosive or flammable gas. If the sensing object has a glossy surface, however, incline the Sensor by 5 to 10 as shown in the illustration, provided that the Sensor is not influenced by background objects. Correct Use Design Power Reset Time Glossy object The Sensor is ready to operate 100 ms after the Sensor is turned ON. If the load and Sensor are connected to independent power supplies respectively, be sure to turn ON the Sensor before supplying power to the load. * If there is a mirror-like object below the Sensor, the Sensor may not operate stably. Therefore, incline the Sensor or separate the Sensor from the mirror-like object as shown below. Wiring Avoiding Malfunctions Sensing object If using the Photoelectric Sensor with an inverter or servomotor, always ground the FG (frame ground) and G (ground) terminals, otherwise the Sensor may malfunction. Mirror-like object Mounting Mounting the Sensor * If Sensors are mounted face-to-face, make sure that the optical axes are not in opposition to each other. Otherwise, mutual interference may result. * Always install the Sensor carefully so that the aperture angle range of the Sensor will not cause it to be directly exposed to intensive light, such as sunlight, fluorescent light, or incandescent light. * Do not strike the Photoelectric Sensor with a hammer or any other tool during the installation of the Sensor, or the Sensor will lose its water-resistive properties. * Use M3 screws to mount the Sensor. * When mounting the case, make sure that the tightening torque applied to each screw does not exceed 0.54 N*m. * Do not install the Sensor in the wrong direction. Refer to the following illustration. Sensing object Moving direction Moving direction Sensing object Distance-settable Photoelectric Sensor Sensing object Moving direction E3Z-LS 9 Install the Sensor as shown in the following illustration if each sensing object greatly differs in color or material. Moving direction Moving direction Adjustments Indicator Operation Distance threshold (settable) Unstable NEAR Stable NEAR NEAR region Incident light level threshold (not settable) Slightly insufficient Not sufficient incident incident light light margin Unstable FAR Very insufficient Stable FAR incident light VERY NEAR FAR region region (for FGS only) BGS Stability (green) ON L/ON Stability (green) Operation (orange) ON OFF ON OFF D/ON Stability (green) Operation (orange) ON OFF ON OFF L/ON D/ON OFF Operation ON (orange) OFF Stability ON (green) OFF Operation ON (orange) OFF FGS Note: 1. If the stability indicator is lit, the detection/no detection status is stable within the rated ambient operating temperature (-25 to 55C). 2. The VERY FAR region is supported only for FGS. The incident light threshold is fixed and cannot be set. The distance to the incident light threshold depends on the color and gloss of the sensing object's surface. Inspection and Maintenance Cleaning Never use paint thinners or other organic solvents to clean the surface of the product. 10 Distance-settable Photoelectric Sensor E3Z-LS E3Z Series Complete E3Z Series Sensing Distance-settable method (NEW) Diffuse reflective Narrow-beam diffuse reflective Retroflective Retroflective for PET bottles Through-beam Grooved type Item Appearance Model E3Z-LS E3Z-D Sensing distance 20 mm to set dis5 to 100 mm 1 m tance (BGS mode) (wide vision) Set distance to 200 mm min. (FGS mode) Light source Red LED (680 nm) Infrared LED (wave(860 nm) length) E3Z-L E3Z-R E3Z-B 90 30 mm 4 m (100 mm) (See note 1.) 500 mm (80 mm) (See note 1.) Red LED (670 nm) E3Z-T 2m (500 mm) (See note 1.) Red LED (680 nm) E3Z-G 15 m 10 m 25 mm Infrared LED (860 nm) Red LED (700 nm) Infrared LED (940 nm) Power supply voltage 12 to 24 VDC 10%, ripple (p-p) 10% max. Current consumption 30 mA max. Control outputs Load power supply voltage 26.4 VDC max., load current 100 mA max. (residual voltage 1 V max.) Open collector output (NPN or PNP depending on model) Light-ON/Dark-ON switch selectable Protective circuits Reverse polarity protection, output short-circuit protection, mutual interference prevention (Mutual interference prevention is not provided on E3Z-T.) Response time Operation or reset: 1 ms max. Sensitivity adjustment 5-turn endless adjuster Emitter: 15 mA Receiver: 20 mA Single-turn adjuster 25 mA max. --- Ambient Operating: -25 to 55C, Storage: -40 to 70C (with no icing or condensation) temperature Ambient humidity Operating: 35% to 85%, Storage: 35% to 95% (with no condensation) Protective structure IEC 60529 IP67 Connection method Pre-wired (standard length: 2 m/0.5 m) or M8 connector IEC 60529 IP64 Pre-wired (standard length: 2 m/0.5 m), M8 connector, or M12 connector relay (0.3 m) Pre-wired (standard length: 2 m/0.5 m) or M8 connector Pre-wired (standard Pre-wired (standard length: length: 2 m/0.5 m), 2 m/0.5 m) or M8 connector M8 connector, or M12 connector relay (0.3 m) Pre-wired (standard length: 2 m/0.5 m), M8 connector, or M12 connector relay (0.3 m, infrared type only) Pre-wired (standard length: 2 m/0.5 m) or M8 connector relay (0.3 m) Note: 1. The sensing distance is for when an E39-R1S Reflector is used. The minimum distance between the Reflector and Sensor is given in parentheses. 2. For details, refer to the Sensing Products catalog (CEDSAX). 11 Distance-settable Photoelectric Sensor E3Z-LS ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, divide by 25.4 OMRON ELECTRONICS LLC OMRON ON-LINE OMRON CANADA, INC. One East Commerce Drive Schaumburg, IL 60173 Global - http://www.omron.com USA - http://www.omron.com/oei Canada - http://www.omron.com/oci 885 Milner Avenue Toronto, Ontario M1B 5V8 1-800-55-OMRON Cat. No. E327-E3-1 12 08/02/7.5M 416-286-6465 Specifications subject to change without notice Distance-settable Photoelectric Sensor E3Z-LS Printed in USA