R Distance-setting Photoelectric Sensor E3G-L1/L3 Pin-point Beam, Adjustable Focus Point and Teach Mode for Reliable Detection H Teach mode speeds accurate setup H Smallest pin-point beam in the industry H H H H allows detection of minute objects Optical system achieves stable detection of objects regardless of glossiness, color, material, surface irregularities, or inclination Connector and cabled models Rugged IP67, NEMA 4 enclosure Selectable Light-ON/Dark-ON operation Ordering Information J SENSORS Appearance pp Supply pp y voltage l Light g source Connection method h d 10-30 VDC Red Pre-leaded Sensing/Setting g/ g range g 5 mm 20 mm Part number 30 mm 50 mm NPN PNP E3G-L11 E3G-L12 E3G-L15 E3G-L16 E3G-L31 E3G-L32 E3G-L35 E3G-L36 Min. setting Setting g range: g 30 to 50 mm Max setting Max. Connector Sensing range: 5 to 50 mm Infrared Pre-leaded 5 mm 30 mm 50 mm Min. setting Setting range: 200 mm White paper 50 to 200 mm Max setting Max. Connector Sensing range: White paper 5 to 200 mm J CONNECTOR CORDSETS Shape Description Cable length Part number Straight Four-wire,, vibration-proof, p , single-ended g cable bl 2 m (6.56 ft) XS3F-M421-402-R 5 m (16.40 ft) XS3F-M421-405-R 2 m (6.56 ft) XS3F-M422-402-R 5 m (16.40 ft) XS3F-M422-405-R Ri ht angle Right l 2 E3G-L1/L3 E3G-L1/L3 J REPLACEMENT PARTS Mounting brackets Remarks Part number Provided with E3G-Lj1/-Lj2 E39-L139 Provided with E3G-Lj5/-Lj6 E39-L140 Specifications Ratings/Characteristics Sensing method Diffuse Part number NPN output E3G-L11 E3G-L15 E3G-L31 E3G-L35 PNP output E3G-L12 E3G-L16 E3G-L32 E3G-L36 Setting range 30 to 50 mm (1.18 to 1.97 in) (Kodak white paper, black paper: 50 x 50 mm) 50 to 200 mm (1.97 to 7.87 in) (Kodak white paper 50 x 50 mm) 50 to 150 mm (1.97 to 5.91 in) (black paper 50 x 50 mm) Sensing range 5 to 50 mm (0.20 to 1.97 in) (Kodak white paper 50 x 50 mm, setting distance 50 mm) 5 to 200 mm (0.20 to 7.87 in) (Kodak white paper 50 x 50 mm, setting distance 200 mm) 5 to 150 mm (0.20 to 5.91 in) (black paper 50 x 50 mm, setting distance 150 mm) Differential travel 4% max. of sensing distance 10% of sensing distance (typical) Reflectivity characteristics (black/white differential) 4% max. of sensing distance 10% max. of sensing distance (at 50 to 150 mm setting distance) Light source (wavelength) Red LED (670 nm) Infrared LED (860 nm) Spot size 1 mm dia. max. (at 38 mm sensing distance) 15 mm dia. max. (at 150 mm sensing distance) Supply voltage 10 to 30 VDC max. 10% (p-p) ripple Stabilization on powerup 100 ms Current consumption 55 mA max. Control output 100 mA max. at 30 VDC Residual voltage: NPN output: 1.2 V max. PNP output: 2.0 V max. Open collector output (NPN/PNP, differs depending on models) Light-ON/Dark-ON selectable Circuit protection Protection from reversed power supply connection, load short--circuit, and mutual interference Response time Operation or reset: 1.5 ms max. Distance setting Teaching (in NORMAL or ZONE mode) Fine distance adjustment Manual fine threshold adjustment (NORMAL mode: 13 levels/ZONE mode: 5 levels) Indicator Operation indicator (orange LED), distance indicator (green LED: 8 levels), threshold indicator (red LED, NORMAL mode: 13 levels/ZONE mode: 5 levels) Ambient light immunity (receiver side) Incandescent lamp: 3,000 !x max./Sunlight: 10,000 !x max. Ambient temperature Operating --25_C to 55_C (--13_F to 131_F) with no icing or condensation Storage --30_C to 70_C (--22_F to 158_F) with no icing or condensation Relative h idi humidity Operating 35% to 85% with no condensation Storage 35% to 95% with no condensation 65 mA max. Operation or reset: 2.5 ms max. Insulation resistance 20 M! min. at 500 VDC Dielectric strength 1,000 VAC, 50/60 Hz for 1 min. Vibration resistance 10 to 55 Hz, 1.5 mm double amplitude for 2 hours each in X, Y and Z axes Shock resistance 500m/s2, 3 times each in X, Y and Z axes Degree of protection IEC60529 IP67 (with protective cover) in place (This table continues on the next page.) 3 E3G-L1/L3 E3G-L1/L3 Specifications Table -- continued from previous page Sensing method Diffuse Part number NPN output E3G-L11 E3G-L15 E3G-L31 E3G-L35 PNP output E3G-L12 E3G-L16 E3G-L32 E3G-L36 Connection method Pre-leaded (standard length: 2 m) M8 connector Pre-leaded (standard length: 2 m) M8 connector Weight (packed state) Approx. 64 g Approx. 21 g Approx. 64 g Approx. 21 g Material Case: PBT (polybutylene terephthalate). Lens: Acrylic (PMMA). Mounting bracket: Stainless steel (SUS304) Accessories included Mounting bracket (with screws) and instruction sheet Operation J OUTPUT CIRCUITS Output configuration NPN PNP Part number E3G-L11 E3G-L12 E3G-L15 E3G-L16 E3G-L31 E3G-L32 E3G-L35 Output operation Timing chart Dark-ON Light-ON Dark-ON Incident Interrupted ON OFF Incident Interrupted ON OFF Incident Interrupted ON OFF Incident Interrupted ON OFF Operation indicator (orange) ON OFF Operation indicator (orange) ON OFF Operation indicator (orange) ON OFF Operation indicator (orange) ON OFF Output transistor ON OFF Output transistor ON OFF Output transistor Output transistor Load (relay) Mode selector E3G-L36 Light-ON ON OFF Operate Reset (Between brown and black) L-ON (Light-ON) Load (relay) Operate Reset (Between brown and black) D-ON (Dark-ON) Load (relay) Operate Reset (Between blue and black) Load (relay) L-ON (Light-ON) ON OFF Operate Reset (Between blue and black) D-ON (Dark-ON) Output circuit J CONNECTOR WIRING Classification Wire color Connector pin number Use DC Brown 1 Power supply (+ V) White 2 Pin 2 is not used. Blue 3 Power supply (0 V) Black 4 Output XS3F-M421-402-R XS3F-M421-405-R XS3F-M422-402-R XS3F-M422-405-R 4 E3G-L1/L3 E3G-L1/L3 Engineering Data J OPERATING RANGE E3G-L1j (in NORMAL Mode) E3G-L1j (in ZONE Mode) 2.5 Setting distance: 30 mm, 40 mm, 50 mm Target object: White paper 50 "50 mm 2.0 2 40 mm 1 0 10 20 30 40 50 30 mm 60 Y --1 X --2 --3 50 mm Operating position Y (mm) Operating position Y (mm) 3 1.0 30 mm 50 mm 0.5 0 25 30 35 40 45 50 55 --0.5 --1.0 --1.5 40 mm --2.5 Distance X (mm) 5 Distance X (mm) E3G-L3j (in ZONE Mode) 4 3 100 mm 2 Y 1 X 50 100 150 200 --1 --2 50 mm --3 Operating position Y (mm) Setting distance: 50 mm, 100 mm, 200 mm Target object: White paper 50 "50 mm 4 Operating position Y (mm) 1.5 --2.0 E3G-L3j (in NORMAL Mode) 0 Setting distance: 30 mm, 40 mm, 50 mm 200 mm --4 Setting distance: 50 mm, 100 mm, 200 mm 3 2 50 mm 1 0 50 150 200 250 200 mm --2 --3 --5 100 --1 100 mm --4 Distance X (mm) Distance X (mm) J SPOT DIAMETER VS. SENSING DISTANCE E3G-L3j 3 14 2.5 12 Spot diameter (mm) Spot diameter (mm) E3G-L1j 2 1.5 1 0.5 0 30 10 8 6 4 2 35 40 45 0 40 50 Distance (mm) 60 80 100 120 140 160 Distance (mm) 5 180 200 E3G-L1/L3 E3G-L1/L3 J ANGLE CHARACTERISTICS E3G-L1j (Up and Down) 4 E3G-L1j (Left and Right) 5 Target object: White paper 50 " 50 mm Sensing distance:30 mm 3 2 1 0 --1 (Up and Down) Inclination angle --2 #" --3 –" --4 --5 Sensing distance variation (%) Sensing distance variation (%) 5 Target object: White paper 50 " 50 mm Sensing distance:30 mm 4 3 2 1 0 (Left and Right) --1 Inclination angle --2 #" --3 –" --4 Sensing object --40 --30 --20 --10 0 10 20 30 40 Sensing object --5 --40 --30 Inclination angle " (#) 5 Target object: White paper 50 " 50 mm Sensing distance:50 mm 3 2 1 0 (Up and Down) --1 Inclination angle #" --2 --3 –" --4 Sensing object --5 --40 --30 --20 --10 0 10 20 30 2 1 0 (Left and Right) --1 Inclination angle --2 #" --3 –" --4 Sensing distance variation (%) Sensing distance variation (%) 10 4 2 0 --2 (Up and Down) Inclination angle --4 #" --6 –" Sensing object --30 --20 --10 0 --20 --10 8 0 10 20 30 40 Target object: White paper 50 " 50 mm Sensing distance:50 mm 6 4 2 0 (Left and Right) Inclination angle #" --2 --4 --6 –" --8 Sensing object --30 40 E3G-L3j (Left and Right) 6 --10 --40 30 Inclination angle " (#) Target object: White paper 50 " 50 mm Sensing distance:50 mm --8 20 3 --5 --40 40 E3G-L3j (Up and Down) 8 10 Target object: White paper 50 " 50 mm Sensing distance:50 mm 4 Inclination angle " (#) 10 0 E3G-L1j (Left and Right) Sensing distance variation (%) Sensing distance variation (%) 4 --10 Inclination angle " (#) E3G-L1j (Up and Down) 5 --20 10 20 Inclination angle " (#) 30 40 --10 --40 Sensing object --30 6 --20 --10 0 10 20 Inclination angle " (#) 30 40 E3G-L1/L3 E3G-L1/L3 J ANGLE CHARACTERISTICS (CONT.) E3G-L3j (Up and Down) E3G-L3j (Left and Right) 10 Target object: White paper 50 " 50 mm Sensing distance:150 mm 8 Sensing distance variation (%) Sensing distance variation (%) 10 6 4 2 0 (Up and Down) Inclination angle --2 --4 #" --6 –" --8 --30 --20 --10 0 10 20 30 6 4 2 0 --2 (Left and Right) Inclination angle #" --4 --6 –" --8 Sensing object --10 --40 Target object: White paper 50 " 50 mm 8 Sensing distance:150 mm Sensing object --10 --40 40 --30 Inclination angle " (#) --20 --10 0 10 20 30 40 120 140 160 180 200 Inclination angle " (#) J TARGET OBJECT SIZE VS. SETTING DISTANCE E3G-L1j E3G-L3j 2.5 Target object: White paper Setting distance: 50 mm Min. sensing object dia. (mm) Min. sensing object dia. (mm) 0.5 0.4 0.3 0.2 0.1 0 30 35 40 45 2 1.5 1 0.5 0 40 50 Target object: White paper Setting distance: 200 mm 60 Distance (mm) 80 100 Distance (mm) J CLOSE-RANGE CHARACTERISTICS E3G-L1j 50 E3G-L3j 250 Setting distance: 30 mm Setting distance: 50 mm 50 mm Setting distance: 50 mm 51 mm Sensing distance (mm) Sensing distance (mm) 60 40 31 mm 30 mm 30 20 20 mm 18 mm 16 mm 10 Setting distance: 200 mm 202 mm 200 178 mm 150 100 50 51 mm 28.5 mm 0 1 mm White paper White paper Black paper 0 Black paper White paper 48.5 mm 29 mm 0 mm White paper Black paper Material Material 7 20 mm Black paper E3G-L1/L3 E3G-L1/L3 J SENSING DISTANCE VS. SENSING OBJECT MATERIAL E3G-L1V (at 30 mm Setting Distance) E3G-L1V (at 40 mm Setting Distance) 45 Sensing distance (mm) Sensing distance (mm) 35 30 25 20 15 10 40 35 30 25 20 15 10 5 0 5 White paper Veneer Fiberboard Black paper Black rubber 0 Mirror White paper Material Veneer Fiberboard Black paper Black rubber Mirror Material E3G-L1V (at 50 mm Setting Distance) E3G L3j a 50 mm Se ng D s ance 50 Sens ng d s ance mm Sensing distance (mm) 60 40 30 20 10 0 White paper Veneer Fiberboard Black paper Black rubber Mirror W M Ma e a Material E3G L3j a 150 mm Se ng D s ance Sens ng d s ance mm Sens ng d s ance mm E3G L3j a 100 mm Se ng D s ance W M W M Ma e a Ma e a 8 E3G-L1/L3 E3G-L1/L3 Nomenclature UP/DOWN selector Selects the switching direction at threshold. Operation indicator (Orange) ON when output is ON. NORM L OUT NEAR Distance indicator (Green) Display the distance relative to the threshold. ZONE D SET Operation mode selector Selects L-ON or D-ON. NORMAL/ZONE selector Selects the detection mode. TEACH ADJ FAR RUN Mode selector Selects the mode. Threshold indicator (Red) Indicates threshold level. SET button For teaching or for threshold adjustment Installation Make sure not to install the sensor in the incorrect direction. Refer to the following. J MOUNTING DIRECTIONS Non-shiny Targets Make sure the sensing side of the sensor is parallel with the surface of the target object. Do not tilt the sensor towards the target object. Correct Target object Target object Moving direction Sensing side Moving direction Surface of target object Incorrect Shiny Targets If the target object has a glossy surface, incline the sensor by 5# to 10# as shown below, provided that the sensor is not influenced by any background objects. Moving direction Target object Install the sensor as shown in the following if the target object greatly differs in color or material. Correct Incorrect Glossy object If there is a mirror--like object below the sensor, the sensor may not be in stable operation. Tilt the sensor or keep the sensor far enough away from the mirror--like object to avoid interfering reflections as shown below. Moving direction Target object Mirror--like object 9 Moving direction E3G-L1/L3 E3G-L1/L3 J ADJUSTMENTS If the sensor is not in stable operation due to color differences, make a fine adjustment of the threshold level and confirm that the sensor operates in stable state. Refer to Manual Teaching (Fine Distance Setting. Adjustment Steps 1 Install, wire, and turn on the sensor. 2 Perform distance setting (teaching). Refer to Distance Setting (Teaching) below. 3 Make a fine adjustment of the threshold, if necessary. Refer to Manual Teaching (Fine Distance Setting) 4 Check that the mode selector is set to RUN. Distance Setting (Teaching) Select the most appropriate teaching method in reference to the following descriptions. 1 $ Application Teaching 2 Teaching without sensing objects (i.e., Teaching the background). 1 Normal one-point teaching $ $ 3 Detection of slight differences in surface level. $ Setting a threshold in the middle between the background and sensing object for operation. 2 Normal two-point teaching 3 Press the TEACH button with the background object and with the target object. Press the TEACH button with the background object. present. Detection of glossy objects in front of the background. Sensor Sensor Zone one-point teaching Press the TEACH button with the background object (conveyor, etc.). Sensor Sensor Setting method Object Background Set threshold Background Background Threshold (a) is set immediately in front of the background. Threshold (a) is set approximately in the middle between the background and target object. A pair of thresholds, (a) and (b), are set. The output is ON between the sensor and La. The output is ON between the sensor and La. The output is ON between La and Lb. E3G-L Output ON range Background ON E3G-L ON D-ON L-ON ON Threshold a (La) Background Background Threshold a (La) OFF ON Background Threshold b (Lb) ON La: Distance equivalent to threshold (a) Lb: Distance equivalent to threshold (b) The following settings are also possible: Setting the maximum sensing distance of the sensor: Maximum distance setting. Setting the minimum differential travel of the sensor: Minimum distance setting. Distance from sensor to background must not exceed the values shown below during normal one-point or zone one-point teaching. OFF Object Threshold a (La) E3G-L OFF Part number Distance from sensor to background E3G-L1j 32 mm (1.26 in) min. E3G-L3j 55 mm (2.17 in) min. Maximum sensing distance of E3G-L3 type may differ by color of the target object when setting distance is more than 150 mm (5.91 in). Confirm the operation of the sensor before actual operation. 10 E3G-L1/L3 E3G-L1/L3 J ADJUSTMENTS (CONT.) Normal One-point Teaching E3G-L Sensor ON Threshold a (La) Background Procedure Background Operation Panel status 1 Set the mode selector to TEACH. 2 Set the NORMAL/ZONE mode selector to NORMAL. 3 Press the SET button with the background. The threshold indicator (red) will turn ON. 4 Set the mode selector to RUN. 5 Set to L-ON or D-ON mode with the operation mode selector. NORM L OUT ZONE D NEAR SET Threshold indicator (red) turns ON. TEACH ADJ RUN FAR L-ON: Output ON between background and sensor. D-ON: Output OFF between background and sensor. Application Example 1 Adjusting the sensor differential travel to the minimum distance. Press NORM L OUT ZONE D NEAR 1 Set the mode selector to TEACH. 2 Set the NORMAL/ZONE mode selector to NORMAL. 3 Set the UP/DOWN selector to down. 4 Press the SET button for 3 s or more. The threshold indicator (red) will turn ON. 5 The distance indicator (green) will turn ON. This means that teaching is successful. Set the mode selector to RUN to complete the teaching operation. 6 Set to L-ON or D-ON mode with the operation mode selector. SET TEACH ADJ RUN FAR Press Press the SET button for 3 s or more. Threshold indicator (red) turns ON. Set the mode selector to RUN. Distance indicator (green) turns ON. Application Example 2 Setting the sensor to the maximum distance. 1 NORM L OUT Set the mode selector to TEACH. ZONE D NEAR SET 2 Set the NORMAL/ZONE mode selector to NORMAL. 3 Set the UP/DOWN selector to up. 4 Press the SET button for 3 s or more. The threshold indicator (red) will turn ON. 5 The distance indicator (green) will turn ON. This means that teaching is successful. Set the mode selector to RUN to complete the teaching operation. 6 Set to L-ON or D-ON mode with the operation mode selector. TEACH ADJ FAR La: Distance equivalent to threshold (a) 11 Press RUN Press the SET button for 3 s or more. Threshold indicator (red) turns ON. Set the mode selector to RUN. Distance indicator (green) turns ON. E3G-L1/L3 E3G-L1/L3 J ADJUSTMENTS (CONT.) Normal Two-point Teaching Sensor Sensor E3G-L Object ON Object Threshold a (La) Background Background Procedure Background Operation 1 Set the mode selector to TEACH. 2 Set the NORMAL/ZONE mode selector to NORMAL. 3 Press the SET button with a sensing object located at sensing position. Panel status Object NORM L OUT ZONE D NEAR SET The threshold indicator (red) will turn ON. ADJ Move the sensing object and press the SET button with the background. Press If the teaching is not successful, the threshold indicator (red) will start to flash. If the teaching is successful, set the mode selector to RUN to complete the teaching operation. 5 Background NORM L OUT ZONE D NEAR SET If the teaching is not successful, change the position of the object and setting distance that have been set and repeat the procedure from step 3 above. OK Distance indicator (green) turns ON. TEACH NG ADJ RUN FAR Set to L-ON or D-ON mode with the operation mode selector. 6 RUN FAR If the teaching is successful, the distance indicator (green) will turn ON. 4 Threshold indicator (red) turns ON. TEACH Threshold indicator (red) starts to flash. Press La: Distance equivalent to threshold (a) J ADJUSTMENTS (CONT.) E3G-L Zone One-point Teaching OFF Sensor Threshold a (La) ON Background Threshold b (Lb) OFF Background Procedure Operation 1 Set the mode selector to TEACH. 2 Set the NORMAL/ZONE mode selector to ZONE. Panel status Press the SET button with the background. All threshold indicators (Red) will turn ON while the SET button is pressed. When the SET button is released: 3 $ If the teaching is successful, the distance indicator (green) will turn ON. $ If the teaching is not successful, the threshold indicator (red) will start to flash. 4 Set the mode selector to RUN. OK L-ON: Output ON with the background. D-ON: Output OFF with the background. La: Distance equivalent to threshold (a) 12 Distance indicator (green) turns ON. ZONE D NEAR SET TEACH ADJ FAR P Press Set to L-ON or D-ON mode with the operation mode selector. 5 NORM L OUT RUN NG Threshold indicator (red) starts to flash. E3G-L1/L3 E3G-L1/L3 J ADJUSTMENTS (CONT.) Manual Teaching (Fine Distance Setting) Procedure Operation Panel status Fine adjustment of the threshold is possible after teaching. NORM L OUT ZONE D NEAR Set the mode selector to ADJ. SET SET pressed with UP/ DOWN selector set to UP. Threshold increases TEACH ADJ 1 RUN FAR Press Threshold decreases SET pressed with UP/ DOWN selector set to DOWN. Threshold Indicator Display During Distance Adjustment Set the adjustment direction in the ADJ mode with the UP/DOWN selector. Max. 13 adjustment levels for normal teaching The threshold changes each time the SET button is pressed. The setting can be made in up to 13 levels (for normal one--point or two--point teaching). 2 1 After the adjustment is complete, set the mode selector to RUN. 2 3 4 5 6 7 8 9 10 11 12 13 Fi adjustment Five dj t t levels l l for f zone teaching t hi 3 1 2 3 4 5 Threshold and Distance Indicator Displays Display for Distance Setting with Zone Teaching Display for Distance Setting with Normal One-point or Twopoint Teaching The distance indicators show the current distance band. The distance indicators show distances relative to the threshold. The ON range can be shifted using the UP/DOWN selector and SET button. The differential travel is fixed. UP Control output: ON UP UP DOWN DOWN UP Control output: ON DOWN The distance indicators show the distance level. The distance indicators show distances relative to the threshold. (No change) The threshold can be shifted using the UP/DOWN selector and SET button. The differential travel is fixed. 13 Control output: ON E3G-L1/L3 E3G-L1/L3 Dimensions Unit: mm (inch) J SENSORS Preleaded Models E3G-L11/L31 E3G-L12/L32 Shown with mounting bracket E39-L139 (included) Mounting holes Mounting bracket can be attached to this side. Two, M4 Distance indicator (green) Two, R2.2 18.4 (0.72) Threshold indicator (red) Operation indicator (orange) 25.4 (1.00) 17.5 (0.69) 18.4 (0.72) Two, M3 through holes Two, 8-dia. lens Emitter 40 A (1.57) Two, M3 Six, R1.6 Two, 3.2 dia. Optical axis Receiver B See table below. 56.1 (2.21) 19.1 (0.75) Model 14 A B E3G--L1j E3G-L1j 14.5 (0.57) 11.88 (0.47) E3G--L3j E3G-L3j 16.0 (0.63) 10.35 (0.41) Vinyl--insulated round cable with three conductors 4 OD (18 x 0.12 dia.) E3G-L1/L3 E3G-L1/L3 Connector Models E3G-L15/L35 E3G-L16/L36 Shown with mounting bracket E39-L140 (included) Mounting holes Mounting bracket can be attached to here. Two, M4 Distance indicator (green) 25.4 (1.00) Two, R2.2 Threshold indicator (red) Operation indicator (orange) 18.4 (0.72) Two, M3 through holes Two, 8-dia. lens Emitter Two, M3 Six, R1.6 A Optical axis Two, 3.2--dia. 40 (1.57) B Receiver See table below. 73.1 (2.88) M8 connector 36.1 (1.42) Model 10_ 15 A B E3G-L1j 14.5 (0.57) 11.88 (0.47) E3G-L3j 16.0 (0.63) 10.35 (0.41) E3G-L1/L3 E3G-L1/L3 J MOUNTING BRACKETS E39-L139 E39-L140 Material: Stainless steel (SUS304) Material: Stainless steel (SUS304) 10# 10# Note: Provided with E3G-Lj1/-Lj2 Note: Provided with E3G-Lj5/-Lj6 J CONNECTOR CORDSETS Straight XS3F-M421-402-R (L = 2 m) XS3F-M421-405-R (L = 5 m) 4 dia. Right Angle XS3F-M422-402-R (L = 2 m) XS3F-M422-405-R (L = 5 m) 16 E3G-L1/L3 E3G-L1/L3 Precautions Short--circuit Protection J DESIGNING High-voltage Lines Do not place sensor power supply or signal lines within the same conduit as high-voltage power lines. Voltage Ratings Do not exceed rated supply voltage, ripple percent (for DC models), or load current limits. If the load short--circuits, the output will be turned off. Disconnect power and check the wiring. After correcting the shorted condition, turn power back on. The sensor will reset the short-circuit protection function. The short-circuit protection is activated when the current flow is at least 2.4 times the rated load current. When using an inductive load, the inrush current must not exceed this factor. Connector Ambient Lighting $ Do not install the sensor in direct sunlight or other sources of strong ambient light. $ Environmental Conditions $ Do not install the sensor in areas $ $ With high humidity, or where condensation would result With corrosive gas. $ With high vibration or shock. $ When connecting or disconnecting the connector, hold the connector cover to avoid tension on the housoing. Tighten the connector by hand only. Do not use tools which may damage the connector. Always disconnect power before connecting or disconnecting the connector. Be sure that the connector is tightened securely. The sesnor enclosure rating may be reduced or the connector may get loosened. Power Supply J MAINTENANCE AND INSPECTION If a switching power supply is used, or when using an inverter or servomotor, you must ground the FG (frame ground) and G (ground) terminals on the power supply for proper operation and to avoid damaging the sensor. Cleaning $ EEPROM Writing Error Water Exposure $ Although conforming to IP67, do not use the sensor where it may be immsersed, is outdoors, or is exposed to rain. To ensure the water resistance of the sensor, tighten the screws of the operation panel cover to a torque of 0.2 to 0.3 N S m. Cable $ The bending radius of the cable should be at least 25 mm. $ When using extended power and signal cable, total length must not exceed 100 m, with a minimum wire size of 0.3 mm2 (22 AWG). Do not apply tensile force exceeding 50 N to cable (preleaded and connector models). $ Solvents damage the casing of the sensor. Do not use solvents to clean the sensor. Avoiding Malfunctions If using the photoelectric sensor with an inverter or servomotor, be sure to ground the FG (frame ground) and G (ground) terminals, otherwise the sensor may malfunction. Proper Mounting Screws Use M3 screws and washers to mount the sensor and bracket. Mechanical Shock Avoid mechanical shock during installation which may amage the housing (see Shock specifications) 17 If a teaching data error occurs with the operation indicator flashing due to a power failure or static noise, perform the teaching operation of the sensor again. E3G-L1/L3 E3G-L1/L3 NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4. R OMRON ELECTRONICS LLC OMRON ON--LINE OMRON CANADA, INC. 1-800-55-OMRON Global -- http://www.omron.com USA -- http://www.omron.com/oei Canada -- http://www.omron.com/oci 416-286-6465 One East Commerce Drive Schaumburg, IL 60173 Cat. No. CEDSAX4 11/01 Specifications subject to change without notice. 885 Milner Avenue Scarborough, Ontario M1B 5V8 Printed in U.S.A.