User manual OMRON E3X-NL DATASHEET

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Manual abstract: user guide OMRON E3X-NLDATASHEET

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[. . . ] The S and P waves are divided by the FAO (special polarized beam splitter), the waves travel to their respective fiber receivers, and the variation in the glossiness is determined by comparing the two received signals. Received fiber 2 (P wave only) Received fiber 1 (S wave only) Emiss ion S wave only Fuzzy Teaching Function Backs up Stable Detection Supported by the fuzzy teaching function if objects have no difference in glossiness. If the glossiness difference goes below than the minimum sensing lev- Difference in Difference in light energy el, the microprocessor in the grossiness amplifier determines the discrimination means automatically. Distinction means Sensed by light energy difference like an ordinary mark sensor. Output (When 2-point teaching is selected) Measures against Double Refraction There are transparent films and transparent plastic objects that change the direction of polarized light when it passes through the transparent films and transparent plastic objects. [. . . ] sensing object Sensing object angle Model Short-range small spot E32-S15-1 E32-S15-2 E32-S15L-1 Reflective model Long-range E32-S15L-2 10±3 mm (white paper, white glossy plastic 40x20 mm) 0. 5-mm Glossiness determination is possible at 4° inclination from the mounting hole (at sensing distance of 10 mm) 20±7 mm (white paper, white glossy plastic 40x20 mm) 2-mm Glossiness determination is possible at 7° inclination from the mounting hole (at sensing distance of 20 mm) Spot diameter Ambient temperature Ambient humidity Permissible bending radius Protective structure Fiber length Weight (Packed state) Sensor case Material Sensor window Fiber cladding Approx. (at sensdistance of 10 mm) ing distance of 20 mm) Operating: -25°C to 55°C, Storage: -40°C to 70°C (with no icing or condensation) Operating: 35% to 85%RH, Storage: 35% to 90% RH (with no condensation) 4 mm min. 50 g Heat-resistant ABS resin transparent glass urethane Acrylics 1m Approx. 90 g A-200 Standard Photoelectric Sensors Characteristic data (typical) Glossiness vs. Angle (Typical) E3X-NL11 with E32-S15-# Relative glossiness (%) 140 Sensing object: 40 x 20 mm 120 100 80 Set distance E3X-NL11 + E32-S15-# (X direction) Relative glossiness (%) 140 120 100 80 60 White glossy plastic Sensing object: 40 ¥ 20 mm E3X-NL11 + E32-S15L-# (X direction) Relative glossiness (%) 140 120 100 80 Sensing object: 40 ¥ 20 mm White glossy plastic + 10mm 20mm White glossy plastic 60 40 20 White drawing paper 60 White drawing paper 40 20 0 -10 White drawing paper 40 20 0 -10 0 5 10 15 20 25 -5 0 5 10 -5 0 5 10 Set distance (mm) Angle (°) Angle (°) E3X-NL11 with E32-S15L-# Relative glossiness (%) 140 Sensing object: 40 ¥ 20 mm 120 100 80 Set distance E3X-NL11 + E32-S15-# (Y direction) Relative glossiness (%) 140 120 100 80 Sensing object: 40 ¥ 20 mm E3X-NL11 + E32-S15L-# (Y direction) Relative glossiness (%) 140 120 100 80 + 10mm + 20mm Sensing object: 40 ¥ 20 mm White glossy plastic White glossy plastic White glossy plastic 60 White drawing paper 40 20 60 White drawing paper 60 White drawing paper 40 20 0 -15 40 20 0 -15 0 10 20 30 40 -10 -5 0 5 10 15 -10 -5 0 5 10 15 Set distance (mm) Angle (°) Angle (°) Output Circuit Diagram NPN output Model Output transistor Status Timing chart Incident Interrupted Light indicator ON (orange) OFF Output ON transistor OFF Load Operate (e. g. , relay) Reset T Mode selection switch Output circuit Light ON L ON Operation indicator (orange) Stability indicator (green) Brown Load Black Load Control output Orange Answer-back output (Between brown and T: OFF delay timer black terminals) The change for 0 or 40ms (fixed) is possible. E3X-NL11 Incident Interrupted Light indicator ON (orange) OFF Output ON transistor OFF Load Operate (e. g. , relay) Reset T Teaching indicator (red/green) Main circuit 12 to 24 VDC Blue Pink Remote RUN/TEACH input Dark ON D ON Purple Remote teaching input (Between brown and T: OFF delay timer black terminals) The change for 0 or 40ms (fixed) is possible. E3X-NL A-201 E3X-NL + Technical Guide Glossiness When light is applied to the sensing object, the reflected light is generally a mixture of regular reflection components and diffuse reflection components. Glossiness is directly proportional to the light intensity of the regular reflection components. In JIS, the glossiness of a glass plate surface having 1. 567 reflectivity is defined 100 as the basis of glossiness. Glossiness of Typical Object Sensed by E3X-NL11 + E32S15 Glossiness (Example) Metal cylindrical object coated with transparent film Metal cylindrical object coated with transparent film 45° Sensing head 1, 000 The object can be sensed smoothly when the angle of the sensing head is either 0° or 45°. 1. Metal mirror surface (SUS mirror surface) 100 Fuzzy Teaching Function E3X-NL in two-point teaching operation will perform fuzzy computation using the difference in glossiness and the difference in light energy between the two teaching points to determine the thresholds setting with E3X-NL. As shown in the following table, if there is only a small difference in glossiness but there is a large difference in light energy between the two teaching points, the thresholds set with E3X-NL will be determined by the light energy values. 2 3 4 5 6 7 8 9 10 Object no. Sensing of Transparent Objects with Rotating Fiber Unit Mounting Bracket There are transparent films and transparent plastic objects that change the direction of polarized light when it passes through the transparent films and transparent plastic objects. When E3X-NL senses these transparent films and transparent plastic objects on glossy background objects, such as glossy paper or metals, E3X-NL will not sense these objects smoothly in case of an incorrect angle of the sensor head. The most suitable angle of the sensor head varies with the transparent object. The angle of the sensor head can be, however, 0° or 45° for the smooth sensing of such transparent objects due to the characteristic of polarized light. There is no need for the angle to be midway between 0° and 45°. Lit red green TEACH 3 Object 3 TEACH RUN TIMER ON OFF Base 4 Teaching indicator . . . With an object absent (ground), press the TEACHING button (second time). L. ON D. ON Select the desired operation format with the operation mode selector (L. ON/D. ON). Object TEACH Base 4 If teaching is OK Teaching indicator . . . Lit red Flickers red The built-in buzzer beeps 3 times. Change the object position and setting distance again and make setting in order of 1 to 4. Lit green guished Extin- 5 TEACH RUN TIMER ON OFF 6 L. ON D. ON Light Dark Select the desired operation format with the operation mode selector (L. ON/D. ON). E3X-NL A-203 Precautions Correct Use Fiber Units Installation Tightening Force For the fiber unit installation, tighten it to the torque of 0. 3 Nm max. Connect or disconnect the fibers to or from E3X-NL amplifier using the following procedures: 1. Connection After inserting the fiber into the Amplifier, push the lock button until a click sound is heard so that the fiber is securely connected. Lock button For adjustment Two-point Teaching and One-point Teaching Refer to the following information to select the most suitable sensitivity setting method for the application. Sensitivity setting method Two-point teaching One-point teaching One-point teaching should be performed for the sensing of different objects on a single background object or a single type of objects on a variety of glossy background objects. [. . . ] Operation Level Setting and Control Output for One-point Teaching Vth selection Glossiness +15% Teaching Vth on upper side -15% Vth on lower side Control output (L·ON) ON OFF TEACH mode RUN mode Glossiness +15% Teaching Vth on upper side -15% Vth on lower side Vth selection Control output (L·ON) ON OFF TEACH mode RUN mode A-204 Standard Photoelectric Sensors Procedure Remote teaching input H L H 0. 5s 0. 5s Operation Answer-back output (If teaching is OK. ) L 1 Set the mode selector to RUN . H Answer-back output L 0. 5s 0. 5s 0. 5s 0. 5s The following signal conditions must be given as remote teaching input conditions. Brown +V Black Control output Orange Answer-back output Purple Remote teaching input Pink Remote RUN/TEACH input (If teaching is NG. ) 0. 1s 0. 1s * Note: T1 must be 20 ms minimum and T2 must be 500 ms minimum at the time of remote teaching. (Remote 1-point teaching) Remote RUN/TEACH input L Remote teaching input H L H Answer-back output 0. 5s T1 * H T2 * 1. 0 to 1. 3s T1 2 Blue 0V L A If there is a teaching error after performing remote twopoint teaching with E3X-NL, try performing remote twopoint teaching again. If the remote RUN/TEACH input is set from L to H after the teaching error, the thresholds set with E3X-NL will not be refreshed. B When remote teaching is not performed, cut the pink and purple wires at the root of the cable or connect them to the + side (+V) of the power supply, and cut the orange wire at the root of the cable or connect it to GND (0 V). C About 1 s after remote teaching is over, the Sensor is made ready to detect an object. Miscellaneous EEPROM Write Error If a write error occurs (buzzer beeps, red and green teaching indicators flicker at the same time, operation and stability indicators flicker) due to power-off, static electricity or other noise in the teaching mode (until the initial operation level compensation completion of teaching without object), perform teaching again with the unit button. Note: If a memory error occurs, the red and green teaching indicators flicker at the same time and the stability indicator flickers, unlike the teaching error. E3X-NL A-205 E3X-NL Remote teaching function In remote teaching, the remote RUN/TEACH input signal is used for teaching instead of the mode selector and the remote teaching input signal is used instead of the teaching button. (Remote 2-point teaching) T1 * H Remote RUN/TEACH input L T2 * 1. 0 to 1. 3s T1 T2 1. 0 to 1. 3s T1 Dimensions (Unit: mm) Sensors Amplifier Units E3X-NL11 With Mounting Blanket Attached Vinyl-insulated round cable of 4 dia. [. . . ]

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