Color Mark Sensor E3M-V Great for Irregularities and Lamination, an Easy-to-use Mark Sensor Be sure to read Safety Precautions on page 5. Ordering Information Sensors Green Appearance Connection method Sensing distance Spot diameter Model NPN output PNP output 1 x 4 mm E3M-VG11 E3M-VG16 4 x 1 mm E3M-VG21 E3M-VG26 10 3 mm Connector (M12)* * Switchable between vertical and horizontal directions with a rotation connector. Accessories (Order Separately) Mounting Brackets Appearance Model Quantity Remarks E39-L131 1 --- E39-L132 1 For rear mounting Sensor I/O Connectors Cable Appearance Straight Cable type Model 2m XS2F-D421-D80-A 5m Standard XS2F-D421-G80-A 4-wire L-shaped http://www.ia.omron.com/ 2m XS2F-D422-D80-A 5m XS2F-D422-G80-A (c)Copyright OMRON Corporation 2008 All Rights Reserved. 1 E3M-V Ratings and Specifications Item Model E3M-VG11 E3M-VG21 E3M-VG16 E3M-VG26 Sensing distance 10 3 mm Spot size (horizontal x vertical) 1 x 4 mm Light source (wavelength) Green LED (525 nm) Power supply voltage 10 to 30 VDC including 10% (p.p) ripple Current consumption 100 mA max. Control output Load power supply voltage: 30 VDC max., Load current: 100 mA max. (Residual voltage: 1.2 V max.), NPN open collector output Remote control input *1 ON: Short-circuit to 0 V or 1.5 V max. (Outflow current 1 mA max.) ON: Vcc-1.5 V to Vcc (Inlet current 3 mA max.) OFF: Open or Vcc-1.5 V to Vcc (Leakage current 0.1 mA max.) OFF: Open or 1.5 V max. (Leakage current 0.1 mA max.) Remote control output *1 Load power supply voltage: 30 VDC max., Load current: 100 mA max. Load power supply voltage: 30 VDC max., Load current: 100 mA max. (Residual voltage: 1.2 V max.), NPN open collector output (Residual voltage: 2 V max.), PNP open collector output Bank selection 2-bank selection (Performed by remote control only. Refer to the remote control function for details.) Protective circuits Power supply reverse polarity protection, Load short-circuit protection Response time ON: 50 s max., OFF: 70 s max. Sensitivity adjustment Teaching system Ambient illumination (Receiver side) Incandescent lamp: 3,000 lx max., Sunlight 10,000 lx max. Ambient temperature range Operating: -20 to 55C, Storage: -30 to 70C (with no icing) Ambient humidity range Operating: 35% to 85%, Storage: 35% to 95% (with no condensation) Insulation resistance 20 Mmin. at 500 VDC Dielectric strength 1,000 VAC, 50/60 Hz for 1 min 4 x 1 mm 1 x 4 mm 4 x 1 mm Load power supply voltage: 30 VDC max., Load current: 100 mA max. (Residual voltage: 2 V max.), PNP open collector output Vibration resistance *2 Destruction: 10 to 55 Hz, 1-mm double amplitude or 150 m/s2 for 2 hours each in X, Y and Z directions Shock resistance *3 Destruction: 500 m/s2 3 times each in X, Y and Z directions Degree of protection IEC 60529 IP67 (with Protective Cover attached) Connection method M12 Connector Weight (packed state) Approx. 100 g Material Case PBT (polybutylene terephthalate) Lens Mechacrylic resin Accessories Instruction manual *1. A single cable is shared for remote control input and answer-back output. *2. 0.75-mm double amplitude or 100 m/s2 when using a Mounting Bracket. *3. 300 m/s2 when using a Mounting Bracket. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. 2 E3M-V Engineering Data (Typical) E3M-VG1@ E3M-VG1@/-VG2@ E3M-VG1@/-VG2@ 100 80 Incident level (%) Angle - Incident Level Characteristics (Y Direction) Incident level (%) Angle - Incident Level Characteristics (X Direction) Incident level (%) Sensing Distance vs Incident Level Characteristics 100 80 60 60 40 40 20 20 5 6 7 8 9 10 11 12 13 0 -10 14 15 80 60 + E3MVG1 @ -8 -6 -4 -2 0 2 + 40 E3MVG1 @ 20 + E3MVG2 @ 0 100 E3MVG2 @ - 4 6 8 0 -10 10 -8 -6 -4 -2 0 2 4 6 8 10 Angle ( ) Angle ( ) Distance (mm) + Color Detection White Red Difference in Incident Level by Color Conditions Yellow/ Yellow/ Blue/ Red/ Yellow Green Blue Purple Black red green green purple White x Red Yellow/ red x Yellow Relative incident level (%) E3M-VG@@ 100 Standard Sensing Object and Colors (Standard Color Card (230 Colors) for Japan Color Enterprise Co., Ltd.) 100 Color (11 standard colors) 80 71 60 60 54 48 43 41 40 37 33 30 Yellow/ green 25 20 Green Blue/ green Blue Black Red/ purple Purple Blue Blue/ green Green Yellow/ red Yellow/ green Yellow Color N9.5 4R 4.5/12.0 4YR 6.0/11.5 5Y 8.5/11.0 3GY 6.5/10.0 3G 6.5/9.0 5BG 4.5/10.0 3PB 5.0/10.0 7P 5.0/10.0 6RP 4.5/12.5 N2.0 x Purple Red/ purple Red White 0 White Red Yellow/red Yellow Yellow/green Green Blue/green Blue Purple Red/purple Black Munsell color notation x x x Black : Detectable : Detectable but unstable x: Not detectable http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. 3 E3M-V I/O Circuit Diagrams NPN output Model Output circuit 8-level detection indicator (green) 13-level threshold indicator (red) E3M-VG11 E3M-VG21 1 Brown Load * Load White Remote control input/ Answer-back output Black 4 Control 100 mA output max. Blue [Connector Pin Arrangement] 2 Photoelectric Sensor main circuit Operation indicator (orange) 1 10 to 30 VDC 2 4 3 3 * A single cable is shared for remote control input and answer-back output. Be sure to install a load as shown in the diagram for the remote control function. PNP output Model Output circuit 8-level detection indicator (green) 13-level threshold indicator (red) E3M-VG16 E3M-VG26 1 4 Photoelectric Sensor main circuit 2 Operation indicator (orange) Brown Control Black output 1 10 to 30 VDC 2 4 3 Load 3 [Connector Pin Arrangement] Remote control input/ Answer-back output White * Load Blue * A single cable is shared for remote control input and answer-back output. Be sure to install a load as shown in the diagram for the remote control function. Plug (Sensor I/O Connector) Terminal No. 2 3 1 4 Wire color Class Brown White Blue Black 1 2 3 4 XS2F-D421-D80-A XS2F-D421-G80-A XS2F-D422-D80-A XS2F-D422-G80-A DC Wire color Brown White Blue Black Connector pin No. Application 1 Power supply (+V) 2 * Power supply (0 V) 3 4 Output * Used for both of remote control input and answer-back output Technical Guide Nomenclature Detection of Metal or Glossy Objects Color detection can be improved by inclining the Sensor to prevent it from picking up regular reflection. Operation Indicator (orange) lits when output is ON. Detection Level Indicator (green) lits according to detection level. 5 to 15 5 to 15 Detected object http://www.ia.omron.com/ Detected object SET Button Adjusts teaching operation and threshold level. Threshold Indicator (red) Displays threshold level. Mode Selector Selects mode. Up/Down Selector To raise threshold level ... Select . To reduce threshold level ... Select . (c)Copyright OMRON Corporation 2008 All Rights Reserved. 4 E3M-V Safety Precautions Refer to Warranty and Limitations of Liability. WARNING This product is not designed or rated for ensuring safety of persons either directly or indirectly. Do not use it for such purposes. Precautions for Correct Use Do not use the product in atmospheres or environments that exceed product ratings. Designing Power Supply A power supply with full- or half-wave rectification cannot be connected. Wiring Tensile Strength of Cables The tensile strength of the cable should not exceed 50 N. Mounting Tightening Force The tightening force applied to the Fiber Unit should not exceed 1.2 N*m. 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. Others EEPROM Writing Error An EEPROM error may result if the power supply to the Sensor fails or the Sensor is influenced by static noise. The threshold indicators will flash if there is an EEPROM error, in which case perform teaching and make threshold level settings again. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. 5 E3M-V (Unit: mm) Unless otherwise specified, the tolerance class IT16 is used for dimensions in this data sheet. Dimensions Sensors E3M-VG 8-level Indicator (green) 7-level Threshold Indicator (red) Operation indicator (orange) M2.6 47.7 Optical axis Mounting Holes 45 10-dia. lens Two, 4.5 dia. mounting holes 2-M4 25 25 68.5 50 29 8 7 21 10 37 43 M12 Connector Accessories (Order Separately) Mounting Brackets http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. 6 Operating Procedures: Photoelectric Sensors E3M-V Adjustment Steps Step 1 2 3 4 Operation Install, wire, and turn ON the Sensor. Register (i.e., teach) the marks. Refer to Registering Marks on this page to page 8. Adjust thresholds as required. Refer to Adjusting Thresholds on page 9. Check that the mode selector switch is set to RUN. Registering (Teaching) Marks Select the most appropriate teaching method in reference to the following descriptions. 1 Detection of clear color differences between the mark and the background when the background has a color pattern. Application Teaching method Output ON range 1 One-point teaching 2 Detection of slight color differences between the mark and background when the background has no color pattern. 2 3 Remote teaching without positioning when the background has no color pattern. Two-point teaching 1 Automatic teaching The threshold will be set in the The threshold will be set in the middle between the mark and the The default value will be set, and the middle between the mark and the background, and the output will turn background, and the output will turn output will turn ON at the mark. ON at the mark (which has the ON at the mark. shortest passage time). Refer to the following descriptions for each teaching method. One-point teaching and two-point teaching can be controlled remotely. Refer to Remote Control Function on page 10. 1 One-point Teaching Step Operation method 1 Set the mode selector switch to TEACH. Operation condition OUT OUT Sensor TEACH 2 Place the mark in the specified location, and press the SET Button. The threshold indicators (red) will light. TEACH ADJ Mark ADJ RUN Press Background RUN LEVEL LEVEL SET SET Threshold indicators (red) lit 3 Set the mode selector switch to RUN. The output will turn ON at the set mark. Note: The reverse of the output described above (Background: ON, Mark: OFF) can be obtained by teaching using the background. 2 Two-point Teaching Operation method Step 1 Set the mode selector switch to TEACH. Operation condition OUT OUT Sensor TEACH 2 Place the mark in the specified location, and press the SET Button. The threshold indicators (red) will light. TEACH ADJ Mark ADJ RUN Press Background LEVEL SET RUN LEVEL SET Threshold indicators (red) lit Continued on next page http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. 7 Operating Procedures: Photoelectric Sensors Operation method Step Operation condition Detection level indicators (green) lit OUT OUT Sensor TEACH TEACH ADJ Mark ADJ OK RUN 3 Press Background If the teaching is OK, move the mark and press the SET button when the mark is at the position of the background. * If the teaching is OK, the detection level indicators (green) will all be lit. * If the teaching fails, the threshold indicators (red) will all flash. RUN LEVEL LEVEL SET SET Threshold indicators (red) flashing (with no difference in light level) OUT TEACH ADJ NG RUN LEVEL SET 4 If the teaching is OK, the setting will be completed. Set the mode selector switch to RUN. If the teaching fails, perform the setting again from step 2. Note: These teaching steps are for turning output ON at the mark. The output can be set to turn On at the background and turn OFF at the mark by reversing the order of teaching. 3 Automatic Teaching Step Operation 1 Check that the mode selector switch is set to either RUN or ADJUST. 2 A pulse of 0.9 s (see note) will be input to the remote control input/output. 3 4 Teaching will be performed automatically when the mark is moved. (Teaching will be completed after the mark passes six times.) * If teaching is OK, answer-back of 0.3 s will be output from the remote control input/output. * If teaching fails, answer-back will not be output. In this case, perform the adjustment again using two-point teaching. (Teaching will not be OK if there is no difference in light levels between the mark and the background.) If answer-back is detected, the setting will be completed. The output will turn ON at the mark (which has the shortest passage time), and measurement will start. Note: Set input error of each signal pulse to within 0.1 s. Automatic Teaching Teaching completed.Sensing restarts. Teaching starts. 1.8 s 0.3 s 0.9 s ON Remote control input/ answer-back output OFF Automatic teaching Answer-back Time 3' Incident light level 5' 4' 2' 1' Mark (short time)Output ON Threshold setting at best position 1 Dummy sampling (1 mark) Example of Connection with Programmable Controller Programmable Controller Sensor I/O Unit Remote control input/output Output Input Note: Connect the Sensor as shown in the figure above when connecting it to a Programmable Controller. http://www.ia.omron.com/ 2 3 Sampling (5 marks) 4 5 Background (long time)Output OFF Time Precautions for Using Automatic Teaching In the following application conditions, incorrect judgment may occur using automatic tuning. If this occurs, use onepoint teaching or two-point teaching. * The background has a color pattern. * There is a lot of variation in the samples. * The surface has height differences or protrusions. (c)Copyright OMRON Corporation 2008 All Rights Reserved. 8 Operating Procedures: Photoelectric Sensors Adjusting Thresholds Fine adjustment of thresholds can be performed after teaching. Operation can be performed remotely. Refer to Remote Control Function on the next page. Step Operation method 1 Set the mode selector switch to ADJUST. Operation condition Moving the threshold up OUT TEACH Upward selection OUT ADJ RUN TEACH ADJ LEVEL RUN Press 2 SET LEVEL SET In the ADJUST mode, specify the direction of adjustment using the Up/Down selector switch. The threshold will transition each time the SET Button is pressed. (Two indicators will be lit at the same time for even-numbered threshold levels.) Moving the threshold down OUT TEACH Downward selection ADJ RUN LEVEL SET Threshold indicators Threshold 3 1 2 3 4 5 6 7 8 9 10 11 12 13 After the setting is completed, set the mode selector switch to RUN. Detection Level Indicators The control output will turn ON if the detection level exceeds the threshold level. The detection level display will depend on the teaching method. One-point Teaching Two thresholds (i.e., above and below the mark) are set. The indicators show the degree of match with the mark. Detection level indicators Detection level Operation indicator Two-point teaching and Automatic Teaching A threshold is set in the middle between the mark (first registration) and background (second registration). The indicators show the level of excess gain between the mark and the background. Detection level indicators Detection level Output OFF Operation indicator Threshold Output ON Mark Mark Output ON Threshold Threshold Output OFF Output OFF Background Threshold Threshold http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. 9 Operating Procedures: Photoelectric Sensors Remote Control Function (Bank Selection, Mark Registration, Threshold Adjustment) In RUN mode and ADJUST mode, remote operation can be performed by inputting the signals in the following table for the remote control input/answer-back output. There will be answer-back output for 0.3 s if the signal is correctly received. Only one-point teaching can also be operated with manual input. (Provide input for 1.5 s min.) Control Signals Timing Chart No. Control signal Answer-back output only if processing of the signal is properly completed. 0.3 s 1 2.5 s min. * Function Bank 1 selection (Operation indicator OFF in TEACH mode) ON OFF 1.5 s ON Remote control input/output 0.6 s 0.3 s 2.0 s 2 Next input signal Input signal OFF 0.9 s 3 Sensor operation Input judgment (1.8 s) Setting changes. Example of Ladder Programming Control signals can be created using the example of ladder programming shown in the following figure. 05000 05000 TIM000 #XXXX T000 T001 05001 05001 TIM001 #YYYY T001 T002 05002 05002 1.2 s 4 TIM002 #ZZZZ TIM000, TIM001, TIM002 set values (XXXX, YYYY, ZZZZ) No.1: (0000, 0000, 0003) No.2: (0000, 0000, 0006) No.3: (0000, 0000, 0009) No.4: (0000, 0000, 00012) No.5: (0000, 0000, 00015) No.6: (0003, 0003, 0003) No.7: (0003, 0006, 0003) No.8: (0003, 0009, 0003) No.9: (0003, 0003, 0006) No.10: (0003, 0006, 0006) No.11: (0003, 0003, 0009) No.12: (0006, 0003, 0003) 1.5 s 5 One-point teaching (input of 1.5 s min. also possible) ON OFF 0.3 s 0.3 s 0.3 s Threshold 1 selection ON OFF 0.3 s 0.6 s 0.3 s 7 Threshold 3 selection ON OFF 0.3 s 8 0.3 s 0.9 s ON OFF Threshold 5 selection 0.3 s 0.3 s 0.6 s 9 Threshold 7 selection ON OFF 05000 0.3 s 0.6 s 0.6 s 00100 10 05002 END Two-point teaching (first and second) ON OFF 6 T000 Automatic teaching ON OFF Sensing restarts. *If consecutive signals are to be sent, allow an interval of at least 2.5 s after the signal is input, as in the figure above. 00000 Bank 2 selection (Operation indicator lit in TEACH mode) ON OFF Input: 00000 Output: 00100 Others: Work bits Threshold 9 selection ON OFF 0.3 s 0.3 s 11 0.9 s ON OFF Threshold 11 selection 0.6 s 0.3 s 0.3 s 12 ON Threshold 13 selection OFF Note: Set input error of each signal pulse to within 0.1 s http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. 10 Photoelectric Sensors Technical Guide General Precautions For precautions on individual products, refer to Safety Precautions in individual product information. WARNING These Sensors cannot be used in safety devices for presses or other safety devices used to protect human life. These Sensors are designed for use in applications for sensing workpieces and workers that do not affect safety. Precautions for Safe Use To ensure safety, always observe the following precautions. Wiring Item Typical examples Power Supply Voltage Do not use a voltage in excess of the operating voltage range. Applying a voltage in excess of the operating voltage range, or applying AC power (100 VAC or greater) to a DC Sensor may cause explosion or burning. Load Short-circuiting Do not short-circuit the load. Doing so may cause explosion or burning. * DC Three-wire NPN Output Sensors Load Brown Sensor --- Black Blue * DC Three-wire NPN Output Sensor Load Brown Sensor * AC Two-wire Sensors Example: E3E2 (Load short circuit) Black Blue + - Brown Load (Load short circuit) Sensor Blue Incorrect Wiring Do not reverse the power supply polarity or otherwise wire incorrectly. Doing so may cause explosion or burning. * DC Three-wire NPN Output Sensors Example: Incorrect Polarity * DC Three-wire NPN Output Sensors Example: Incorrect Polarity Wiring Load Brown Sensor Load Black + Blue Load Brown Brown Sensor Black Blue Sensor - Blue + - Black + Connection without a load If the power supply is connected directly without a load, the internal elements may burst or burn. Be sure to insert a load when connecting the power supply. * DC Three-wire NPN Output Sensors Brown Sensor 12 to 24VDC * AC 2-wire Sensors Example: E3E2 etc. Brown Black Sensor Blue Blue 0V Operating Environment (1) Do not use a Sensor in an environment where there are explosive or inflammable gases. (2) Do not use the Sensor in environments where the cables may become immersed in oil or other liquids or where liquids may penetrate the Sensor. Doing so may result in damage from burning and fire, particularly if the liquid is flammable. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. C-1 Photoelectric Sensors Technical Guide Precautions for Correct Use Design Power Reset Time Turning OFF Power The Sensor will be ready to detect within approximately 100 ms after the power is turned ON. If the Sensor and the load are connected to separate power supplies, turn ON the Sensor power before turning ON the load power. Any exceptions to this rule are indicated in Safety Precautions in individual product information. An output pulse may be generated when the power is turned OFF. It is recommended that the load or load line power be turned OFF before the Sensor power is turned OFF. Power Supply Types An unsmoothed full-wave or half-wave rectifying power supply cannot be used. Mutual Interference Mutual interference is a state where an output is unstable because the Sensors are affected by light from the adjacent Sensors. The following measures can be taken to avoid mutual interference. Countermeasure 1 2 Concept Through-beam Sensors Reflective Sensors Use a Sensor with the interference prevention function. If Sensors are mounted in close proximity, use Sensors with the interference prevention function. 10 or fewer Sensors: E3X-DA@-S, E3X-MDA, E3C-LDA Fiber Sensors Performance, however, will depend on conditions. Refer to pages E3X-DA-S/E3X-MDA and E3C-LDA. 5 or fewer Sensors: E3X-NA Fiber Sensors 2 or fewer Sensors: E3T, E3Z, E3ZM, E3ZM-C, E3S-C, E3G-L1/L3, or E3S-C Built-in Amplifier Photoelectric Sensors (except Through-beam Sensors) E3C Photoelectric Sensor with separate amplifier Install an inference prevention filter. A mutual interference prevention polarizing filter can be installed on only the E3Z-TA to allow close-proximity mounting of up to 2 Sensors. Mutual Interference Prevention Polarizing Filter: E39-E11 Separate Sensors to distance where interference does not occur. Check the parallel movement distance range in the catalog, verify the set distance between adjacent Sensors, and install the Sensors accordingly at a distance at least 1.5 times the parallel movement distance range. --If the workpieces move from far to near, chattering may occur in the vicinity of the operating point. For this type of application, separate the Sensors by at least 1.5 times the operating range. 1.5 x L 3 Workpiece Workpiece L Sensor Alternate Emitters and Receivers. Sensor Close mounting of Sensors is possible by alternating the Emitters with the Receivers in a zigzag fashion (up to two Sensors). However, if the workpieces are close to the Photoelectric Sensors, light from the adjacent Emitter may be received and cause the Sensor to change to the incident light state. Emitter 4 --Workpiece Receiver Receiver Emitter Offset the optical axes. 5 6 Adjust the sensitivity. If there is a possibility that light from another Sensor may enter the Receiver, change the position of the Emitter and Receiver, place a light barrier between the Sensors, or take other measures to prevent the light from entering the Receiver. (Light may enter even if the Sensors are separated by more than the sensing distance.) If Sensors are mounted in opposite each other, slant the Sensors as shown in the following diagram. (This is because the Sensors may affect each other and cause output chattering even if separated by more than the Sensor sensing distance.) Sensor Sensor Lowering the sensitivity will generally help. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. C-2 Photoelectric Sensors Technical Guide Noise Countermeasures for noise depend on the path of noise entry, frequency components, and wave heights. Typical measures are as given in the following table. Noise intrusion path and countermeasure Type of noise Before countermeasure After countermeasure Noise enters from the noise source through the frame (metal). +V Common mode noise (inverter noise) Sensor Inverter motor 0V IM Common noise applied between the mounting board and the +V and 0-V lines, respectively. (1) Ground the inverter motor (to 100 or less) (2) Ground the noise source and the power supply (0-V side) through a capacitor (film capacitor, 0.22 F, 630 V). (3) Insert an insulator (plastic, rubber, etc.) between the Sensor and the mounting plate (metal). Insert an insulator. Noise Mounting block (metal) +V Inverter motor Sensor 0V (3) (2) Noise Noise Mounting block (metal) Noise propagates through the air from the noise source and directly enters the Sensor. Radiant noise Ingress of high-frequency electromagnetic waves directly into Sensor, from power line, etc. Noise source (1) * Insert a shield (copper) plate between the Sensor and the noise source e.g., a switching power supply). * Separate the noise source and the Sensor to a distance where noise does not affect operation. +V Sensor Shield plate (copper) 0V Noise source Noise enters from the power line. Power line noise Noise Ingress of electromagnetic induction from high-voltage wires and switching noise from the switching power supply Noise IM +V Sensor +V Sensor 0V * Insert a capacitor (e.g., a film capacitor), noise filter (e.g., ferrite core or insulated transformer), or varistor in the power line. Noise 0V Insert a capacitor, etc. Noise Sensor +V 0V Wiring Cable Separation from High Voltage (Wiring Method) Unless otherwise indicated, the maximum length of cable extension is 100 m using wire that is 0.3 mm2 or greater. Exceptions are indicated in Safety Precautions in individual product information. Do not lay the cables for the Sensor together with high-voltage lines or power lines. Placing them in the same conduit or duct may cause damage or malfunction due to induction interference. As a general rule, wire the Sensor in a separate system, use an independent metal conduit, or use shielded cable. Cable Tensile Strength When wiring the cable, do not subject the cable to a tension greater than that indicated in the following table. Cable diameter Less than 4 mm 4 mm or greater Tensile strength 30 N max. 50 N max. Note: Do not subject a shielded cable or coaxial cable to tension. Repeated Bending Power line Work Required for Unconnected Leads Unused leads for self-diagnosis outputs or other special functions should be cut and wrapped with insulating tape to prevent contact with other terminals. Normally, the Sensor cable should not be bent repeatedly. (For bending-resistant cable, see Attachment to Moving Parts on page C-4.) http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. C-3 Photoelectric Sensors Technical Guide Power Supply When using a commercially available switching regulator, ground the FG (frame ground) and G (ground) terminals. If not grounded, switching noise in the power supply may cause malfunction. Example of Connection with S3D2 Sensor Controller DC Three-wire NPN Output Sensors Reverse operation is possible using the signal input switch on the S3D2. Blue 0 V Black OUT Mounting Attachment to Moving Parts To mount the Photoelectric Sensor to a moving part, such as a robot hand, consider using a Sensors that uses a bending-resistant cable (robot cable). Although the bending repetition tolerance of a standard cable is approximately 13,000 times, robot cable has an excellent bending tolerance of approximately 500,000 times. Cable Bending Destruction Test (Tough Wire Breaking Test) With current flowing, bending is repeated to check the number of bends until the current stops. 7 8 9 (2) 10 11 12 Brown +12 V (1) S3D2 4 5 6 1 2 3 (3) R Weight Specimen Description/conditions Test Bending angle () Bending repetitions Weight Operation per bending Bending radius of support points (R) Result Standard cable VR (H) 3 x18/0.12 Robot cable: Strong, conductive electrical wire 2 x 0.15 mm2, shielded Left/right 90 each Left/right 45 each --- 60 bends/minute 300g 200g (1) through (3) in figure once (1) through (3) in figure once 5 mm 2.5 mm Approx. 13,000 times Approx. 500,000 times The testing conditions of the standard cable and robot cable are different. Refer to the values in the above table to check bend-resistant performance under actual working conditions. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. C-4 Photoelectric Sensors Technical Guide Adjustments Optical Axis Adjustment Securing Fibers The E3X Fiber Unit uses a one-touch locking mechanism. Use the following methods to attach and remove Fiber Units. (1) Attaching Fibers Open the protective cover, insert the fiber up to the insertion mark on the side of the Fiber Unit, and then lower the lock lever. Move the Photoelectric Sensor both vertically and horizontally and set it in the center of the range in which the operation indicator is lit or not lit. For the E3S-C, the optical axis and the mechanical axis are the same, so the optical axis can be easily adjusted by aligning the mechanical axis. Receiver Incident indicator or Operation indicator ON OFF Lock released position Emitter Locked position Lock lever Protective cover l 1 2 Insertion position Optimum value Incident indicator or Operation indicator ON OFF Optical axis: The axis from the center of the lens to the center of the beam for the Emitter and the axis from the center of the lens to the center of the reception area for the Receiver. Mechanical axis: The axis perpendicular to the center of the lens. Fiber insertion mark Fiber 9mm (2) Removing Fibers Open the protective cover, lift up the lock lever, and pull out the fibers. Locked position Lock released position Emitter Optical axis Optical axis Receiver Mechanical axis Protective cover Emission beam Reception area Note:1.To maintain the fiber characteristics, make sure that the lock is released before removing the fibers. 2. Lock and unlock the fibers at an ambient temperature of -10 to 40C. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. C-5 Photoelectric Sensors Technical Guide Operating Environment Water Resistance Maintenance and Inspection Points to Check When the Sensor Does Not Operate Do not use in water, in rain, or outside. * If the Sensor does not operate, check the following points. (1) Are the wiring and connections correct? (2) Are any of the mounting screws loose? (3) Are the optical axis and sensitivity adjusted correctly? (4) Do the sensing object and the workpiece speed satisfy the ratings and specifications? (5) Are any foreign objects, such as debris or dust, adhering to the Emitter lens or Receiver lens? (6) Is strong light, such as sunlight (e.g., reflected from a wall), shining on the Receiver? (7) Do not attempt to disassemble or repair the Sensor under any circumstances. (8) If you determine that the Sensor clearly has a failure, immediately turn OFF the power supply. Ambient Conditions Do not use this Sensor in the following locations. Otherwise, it may malfunction or fail. (1) Locations exposed to excessive dust and dirt (2) Locations exposed to direct sunlight (3) Locations with corrosive gas vapors (4) Locations where organic solvents may splash onto the Sensor (5) Locations subject to vibration or shock (6) Locations where there is a possibility of direct contact with water, oil, or chemicals (7) Locations with high humidity and where condensation may result Environmentally Resistive Sensors The E32-T11F/T12F/T14F/T81F-S/D12F/D82F and E3HQ can be used in locations (3) and (6) above. Optical Fiber Photoelectric Sensors in Explosive Gas Atmospheres The Fiber Unit can be installed in the hazardous area, and the Amplifier Unit can be installed in a non-hazardous area. <Reason> For explosion or fire due to electrical equipment to occur, both the hazardous atmosphere and a source of ignition must be in the same location. Optical energy does not act as an ignition source, thus there is no danger of explosion or fire. The lens, case, and fiber covering are made of plastic, so this setup cannot be used if there is a possibility of contact with solvents that will corrode or degrade (e.g., cloud) the plastic. <Ignition Source> Electrical sparks or high-temperature parts that have sufficient energy to cause explosion in a hazardous atmosphere are called ignition sources. Hazardous area Non-hazardous area Fiber Unit Amplifier Unit Sensing object Lens and Case The lens and case of the Photoelectric Sensor are primarily made of plastic. Dirt should be gently wiped off with a dry cloth. Do not use thinner or other organic solvents. * The case of the E3ZM, E3ZM-C and E3S-C is metal. The lens, however, is plastic. Accessories Using a Reflector (E39-R3/R37/RS1/RS2/RS3) During Application (1) When using adhesive tape on the rear face, apply it after washing away oil and dust with detergent. The Reflector cannot be mounted if there is any oil or dirt remaining. (2) Do not press on the E39-RS1/RS2/RS3 with metal or a fingernail.This may weaken performance. (3) This Sensor cannot be used in locations where oil or chemicals may splash on the Sensor. M8 and M12 Connectors * Be sure to connect or disconnect the connector after turning OFF the Sensor. * Hold the connector cover to connect or disconnect the connector. * Secure the connector cover by hand. Do not use pliers, otherwise the connector may be damaged. * If the connector is not connected securely, the connector may be disconnected by vibration or the proper degree of protection of the Sensor may not be maintained. Others Influence from External Electrical Fields Values Given in Typical Examples Do not bring a transceiver near the Photoelectric Sensor or its wiring, because this may cause incorrect operation. The data and values given as typical examples are not ratings and performance and do not indicate specified performance. They are rather values from samples taken from production lots, and are provided for reference as guidelines. Typical examples include the minimum sensing object, engineering data, step (height) detection data, and selection list for specifications. Cleaning * Keep organic solvents away from the Sensor. Organic solvents will dissolve the surface. * Use a soft, dry cloth to clean the Sensor. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. C-6 Read and Understand This Catalog Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranty and Limitations of Liability WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED. LIMITATIONS OF LIABILITY OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS, OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. In no event shall responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted. IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR. Application Considerations SUITABILITY FOR USE OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the product. At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use. The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products: * Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog. * Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations. * Systems, machines, and equipment that could present a risk to life or property. Please know and observe all prohibitions of use applicable to the products. NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. Disclaimers CHANGE IN SPECIFICATIONS Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the product may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased product. DIMENSIONS AND WEIGHTS Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown. ERRORS AND OMISSIONS The information in this catalog has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions. PERFORMANCE DATA Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability. PROGRAMMABLE PRODUCTS OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof. COPYRIGHT AND COPY PERMISSION This catalog shall not be copied for sales or promotions without permission. This catalog is protected by copyright and is intended solely for use in conjunction with the product. Please notify us before copying or reproducing this catalog in any manner, for any other purpose. If copying or transmitting this catalog to another, please copy or transmit it in its entirety. 2008. 9 OMRON Corporation In the interest of product improvement, specifications are subject to change without notice. Industrial Automation Company http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved.