F502-EN2-04.book Seite 111 Dienstag, 26. Juli 2005 5:48 17 Distance setting photoelectric sensor in metal housing E3S-CL E3S-CL * High water, oil and detergent resistance * Minimal black/white error for highest reliability detecting different colored objects (E3S-CL1) Features Eliminates Background Influences with a Hysteresis of Only 2% max. (E3S-CL1) What Is Distance Setting? (Differences from other detecting system) The hysteresis is the industry's minimum 2% max. (E3S-CL1). As a triangulation measuring is used, objects behind the setting distance cannot be detected. The sensor is insensitive to the influence of background objects of high reflectivity, and stable detects works on a conveyor from above. The hysteresis of the E3S-CL2 is 10% max. of the detecting distance (5% max. for white paper). Distance-setting Features When the sensing object moves in direction A, the center position of the reflected light moves in direction B. This is received by the 2-split photodiode and the place where the incident levels are the same on the N and F sides is defined as the setting distance. The object is detected by the incident circuit processing only when N F, and is not detected when N F. Therefore, detection is stable without being influenced by the work type and background objects. Received element (Two division photodiode) B Structure N: Near F: Far N F A setting distance variable Setting range Light source LED Detecting range A Diffuse-reflective Features Structure Since the level of the reflected light is judged for detection , the sensing distance varies with the color, material and/or size of the work. A malfunction may occur if there is any object of high reflectivity in the background. Received element Detecting area Light source LED Detecting range E3S-CL A-111 F502-EN2-04.book Seite 112 Dienstag, 26. Juli 2005 5:48 17 6-turn adjuster with indicator Optical Technology of E3S-CL * The 6-turn adjuster with indicator ensures ease of distance setting. * Fine distance setting is possible. By turning the distance setting adjuster (worm gear), the rotation of the gear moves the cam to change the incident angle of the whole incident block (lens and photodiode), setting the distance. Stability indicator (green) Operation unit cover Setting distance indicator Setting distance adjuster (worm gear) Operation indicator (orange) Cam Receiver lens Two division photodiode Emitter lens Light source LED * NPN/PNP Output Selectable. * Light-ON/Dark-ON is also switch selectable. Conforms to Applicable EN/IEC Standards * The sensors satisfy the electrical safety (IEC947-5-2), noise resistance (IEC947-5-2, IEC801-2/3/ 4) and noise radiation restrictions (EN500 81-2, EN55011) required for photoelectric sensors. Application <m E3S-CL1 Detecting Milk Cartons Detecting Food Products on Conveyors Detecting Wafer Cassettes E3S-CL1 A stainless background E3S-CL1 E3S-CL1 Stable detection is not affected by stainless steel background or carton colors. Objects can also be detected from above a conveyor. Easy distance setting with 6-turn adjustment and indicator. E3S-CL2 Detecting Boxes Detecting Construction Materials (Boards) maining on a Pallet Detecting Tires on a Conveyor Line E3S-CL2 E3S-CL2 E3S-CL2 Stable detecting boxes regardless of box position. A-112 Construction materials can be detected from above. Stable detecting black objects such as tires. Standard Photoelectric Sensors F502-EN2-04.book Seite 113 Dienstag, 26. Juli 2005 5:48 17 Ordering Information Red light Sensing/Setting range 5 Model E3S-CL Shape Infrared light 40mm Setting range Min. setting 40 to 200 mm Max. setting 5 Detecting range E3S-CL1 200mm 5 to 200 mm 5 50mm Min. setting Setting range 50 to 500 mm Max. setting 5 Detecting range 5 to 500 mm E3S-CL2 500mm Rating/performance Sensing method Item Distance-setting Model E3S-CL1 E3S-CL2 Sensing 5 to 200 mm (White paper 200 x 200 mm) (Setting distance 200 mm) 5 to 500 mm (White paper 200 x 200 mm) (Setting distance 500 mm) Setting range 40 to 200 mm (White paper 200 x 200 mm) 50 to 500 mm (White paper 200 x 200 mm) Differential distance 2% max. 10% max. Reflectivity characteristics (black/white error) 2% max. *1 10% max. Light source (wave length) Red LED (700 nm) Infrared LED (860 nm) Power supply voltage 10 to 30 VDC [ripple (p-p) 10% included] Current consumption 35 mA max. Control output Protective circuits 50 mA max. Load supply voltage 30 VDC max., load current 100 mA max. (residual voltage NPN output: 1.2 V max., PNP output: 2.0 V max.) Open collector output type (NPN/PNP switch selectable) Light-ON/Dark-ON switch selectable Reverse polarity protection, output short-circuit protection, mutual interference prevention Response time Operation or reset: 1 ms max. Distance setting 6-turn endless adjuster (with indicator) Operation or reset: 2 ms max. Ambient illuminance Incandescent lamp: 5,000 lux max. Sunlight 10,000 lux max. Ambient temperature Operating/Storage: -25C to 55C (with no icing or condensation) Ambient humidity Operating/Storage: 35% to 85%RH (with no condensation) Insulation resistance 20 M Dielectric strength 1,000 VAC at 50/60 Hz for 1 minute Vibration resistance 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 Protective structure IEC Standard IP67, NEMA 6P (limited to indoor use) IEC Standard IP67, NEMA 6P (limited to indoor use) *2 Connection method Pre-wired models (standard length: 2 m) Weight (Packed state) Approx. 170 g Case Operation panel Ma- cover terial Lens Mounting Brackets Accessories min. at 500 VDC Zinc diecast Polyethyl sulfon Acrylics Stainless steel (SUS304) Mounting bracket, hexagon bolt M4 x 12 (with spring washer, flat washer), adjusting screwdriver, instruction manual *1. Sensing distance difference between standard white paper (reflectivity 90%) and standard black paper (reflectivity 5%) *2. NEMA (National Electrical Manufacturers Association) Standards E3S-CL A-113 F502-EN2-04.book Seite 114 Dienstag, 26. Juli 2005 5:48 17 Characteristic data (typical) E3S-CL2 Spot diameter(mm) Spot diameter(mm) Spot Diameter vs. Sensing Distance E3S-CL1 100 25 20 15 80 60 10 40 5 20 0 50 100 150 200 0 250 100 200 300 200 500 E3S-CL2 Sensitivity adjuster : Max Sensitivity adjuster : Min 150 Sensing distance(mm) Sensing distance(mm) Short distance characteristic E3S-CL1 400 Distance (mm) Distance (mm) Sensitivity adjuster : Max. 500 Sensitivity adjuster : Min. 400 300 100 200 50 32.7mm 33.7mm 100 36mm 23.7mm 0 2.7mm 1.4mm White paper 11.4mm Black paper Material A-114 0 0.7mm 0.4mm 6.2mm White paper 33mm 2.6mm Black paper Material Standard Photoelectric Sensors F502-EN2-04.book Seite 115 Dienstag, 26. Juli 2005 5:48 17 Output Circuit Diagram NPN output Operating status of output transistor Timing chart Mode selection switch Output circuit E3S-CL Model Incident Light ON Interrupted Operation ON indicator OFF (orange) Output transistor ON OFF L ON (LIGHT ON) Dark ON Incident Interrupted Operation ON indicator OFF (orange) ON Output transistor OFF Operate Load (Relay) Reset Stability indicator indicator Brown 10 to 30 VDC PNP output transistor Operate Load (Relay) Reset E3S-CL1 E3S-CL2 Operation (Orange) Main circuit (Green) Load Load current Black NPN and PNP output selector NPN output transistor D ON (DARK ON) ZD Control output * ZD 0V Blue * Please make a changeover switch into the NPN side. PNP output Model Operating status of output transistor Light ON Timing chart Incident Interrupted Operation ON indicator OFF (orange) ON OFF Load Operate (Relay) Reset Output transistor E3S-CL1 E3S-CL2 Dark ON Incident Interrupted Operation ON indicator OFF (orange) ON Output transistor OFF Operate Load (Relay) Reset Mode selection switch L ON (LIGHT ON) Output circuit Operation indicator (Orange) Brown 10 to 30 VDC Stability indicator (Green) Main circuit PNP output transistor * NPN and PNP output selector NPN output transistor D ON (DARK ON) ZD Black Load current Load Control output ZD Blue 0V * Please make a changeover switch into the PNP side. Nomenclature: Operation panel Operation unit cover Stability indicator (green) Operation indicator (orange) Output selector Setting distance indicator Mode selector Setting distance adjuster E3S-CL Output selection switch A When using the sensor with NPN output, move the switch to the NPN position. B When using the sensor with PNP output, move the switch to the PNP position. Mode selection switch A When using the sensor with Light-ON, move the switch to the position. B When using the sensor with Dark-ON, move the switch to the position. Distance Adjuster A Turning the distance setting adjuster clockwise (to the Max position) increases the detecting distance, and turning it counterclockwise (to the Min position) decreases the distance. B The distance setting adjuster is a 6-turn endless adjuster ranging from the Min position to the Max position, and its number of turns is displayed on the setting distance indicator according to the rotation of the adjuster. A-115 F502-EN2-04.book Seite 116 Dienstag, 26. Juli 2005 5:48 17 Operation Sensitivity adjustment (distance setting type, Light-ON) Position of distance setting adjuster Photoelectric Sensor (1) Point (A) Sensing object Photoelectric Sensor (2) Points (B), (C) Sensing object Background objec Detection state Background objec Sequence State of setting distance indicator ONAEOFF (A) (A) Min Min (C) (B) Stability indicator Operation indicator (green) (orange) ON (A) (C) Min ONAEOFF 3 5 Max --- OFFAEON Stability indicator Operation indicator (green) (orange) ONAEOFF (C) (B) Adjustment Steps 1 3 Max (A) (3) Setting Indicator state (C) Max 1 3 5 ONOFF Stability indicator Operation indicator (green) (orange) Place a sensing object in the predetermined position, turn the adjuster clockwise until the incident indicator (orange) is turned ON, and define this position as (A). (1) If there is a background object, remove the sensing object, turn the adjuster further clockwise until the incident indicator (orange) is turned ON, and define this position as (B). Turn the adjuster counterclockwise from (B) until the incident indicator (orange) is turned OFF, and define this position as (C). (2) If there is no background object, define the maximum adjuster position (Max) as (C). Set the adjuster in the middle of positions (A) and (C). Also make sure that the stability indicator (green) is turned ON when there is an object and when there is no object. When the indicator is not turned ON, reexamine the detection method since there is a little allowance. Precautions Correct Use Design Cable The oil-resistant cable is used to ensure oil resistance. (E3S-CL2) Installation Sensor installation Mounting orientation * Install the photoelectric sensor in such manner that its detection surface and the object surface are parallel (without inclination relative to the sensing object). Sensing object Movement direction Sensing surface * Also, when the color/material of the sensing object varies extremely, install the photoelectric sensor in either of the following orientations. Glossy object Movement direction Mirror-like object A-116 Movement direction Movement direction * If there is a mirror-smooth object under the photoelectric sensor, operation may become instable. Therefore, incline the photoelectric sensor as shown below or move it away from the object. Sensing object Sensing object Sensing object Sensing object surface If the sensing object has a glossy surface, incline the Sensor by 5 to 10 as shown on the right. In this case, ensure that the Sensor is not influenced by any background objects. * Install the photoelectric sensor in either of the following orientations, being careful of the direction in which the sensing object will move. Movement direction * Install the photoelectric sensor so that the sun, fluorescent lamp, incandescent lamp or any other strong light will not enter the directional angle range of the sensor. Mounting Precautions * Do not strike the Photoelectric Sensor with a hammer or any other tool during the installation of the Sensor, or the Sensor will loose its water-resistive properties. * Use M4 screws. * Tighten the screws to the torque of 1.2 Nm max. Standard Photoelectric Sensors Others Oil resistance/chemical resistance (E3S-CL2) For the oil resistance ofE3S-CL2, the Sensor has passed tests on the oils given in the following table. Refer to the table for examining the oil to be used. Depending on the oil type, however, the Sensor may not be able to exhibit its performance. Testing oil classification JIS classification Lubricant Product name --- Water-insoluble coolant Velocity No. 3 PH 2.02 Not less than 10 to less than 50 Class 2 No. 5 Daphne Cut Class 2 No. 11 Yushiron Oil No. 2ac --- Less than 10 Yushiroken EC50T-3 Class W1 No. 1 Watersoluble coolant Dynamic viscosity (mm2/s) at 40C 79.5 Yushiron Lubic HWC68 Class W1 No. 2 79.9 --- Gryton 1700D 79.2 Class W2 Yushiroken S50N 79.8 No. 1 Note: 1 . E3S-C was submerged in the oils in the above table at 50C for 240 hours, and passed the test of 100-M or more insulation resistance. 2 . For use in the environment where E3S-C is exposed to the oil other than those in the above table, use the dynamic viscosity and PH in the above table. Pre-check the oils since the sensor may be affected by additives etc. in the oils. Dimensions (Unit: mm) E3S-CL1 E3S-CL2 23.8 With Mounting Bracket Attached 7.3 9.2 6.2 4.2 11.7 Stainless steel 4.2 19.7 12 20 Mounting holes 2-M4 Operation indicator Stability indicator Receiver 2-M4 15.4 Slotted hexagonal bolt 1.1 16 25.4 40 37.2 E3S-CL1: Vinyl-insulated round cable of 4 dia. 3 cores conductor cross-sectional area: 0.2 mm; insulation diameter: 1.1 mm Standard length: 2 m 42.6 16.5 54.5 16.1 28 21 9.1 E3S-CL2: Vinyl-insulated round cable of 4 dia. 3 cores conductor cross-sectional area: 0.2 mm; insulation diameter: 1.1 mm Standard length: 2 m 2 Emitter and optical axis position Sensing optical axis 2-M4 40 44.7 Note: The output selector, mode selector and distance setting adjuster are exposed when the cover is opened. E3S-CL A-117 E3S-CL F502-EN2-04.book Seite 117 Dienstag, 26. Juli 2005 5:48 17 F502-EN2-04.book Seite 118 Dienstag, 26. Juli 2005 5:48 17 ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. Cat. No. E237-E2-02A-X A-118 In the interest of product improvement, specifications are subject to change without notice. Standard Photoelectric Sensors