E3M-VG26

F502-EN2-04.book Seite 133 Dienstag, 26. Juli 2005 5:48 17 Mark Sensor E3M-V E3M-V • Detects laminated or light-dispersing objects in stable operation without being influenced by mirror reflection. • Double indication of the detection level and threshold level allows easy grasp of the operating status and easy adjustment. • Automatically sets to the optimum threshold level while sensing objects are being conveyed and incorporates an auto-teaching function that discriminates between the mark and background and turns ON when the mark is detected. • IP67 watertight construction with M12 rotary connector • High response speed of 50 s and half the size of OMRON's conventional models. Applications Dependably Detects Marks on Laminated Sheets Auto-Teaching The coaxial optical system ensures a long sensing distance and stable sensing characteristics over a wide angle range, even for objects that are distance-fluctuating or leaning at an angle, or for laminated objects with marks, which conventional models have difficulty in detecting An auto-teaching function automatically sets the threshold value upon a Remote Control input while the workpiece is moving. There is no need to position the mark at the optical spot. E3M-V A-133 F502-EN2-04.book Seite 134 Dienstag, 26. Juli 2005 5:48 17 Ordering Information Sensors Shape Connection method Setting distance Model NPN output Spot diameter PNP output 1 x 4 mm E3M-VG11 E3M-VG16 4 x 1 mm E3M-VG21 E3M-VG26 1 x 4 mm E3M-VG12 E3M-VG17 4 x 1 mm E3M-VG22 E3M-VG27 Connector type1 10+3 mm Pre-wired 1. Possible to switch between vertical or horizontal connection using the M12 rotary connector Mounting Brackets Shape Model Quantity Remarks E39-L131 1 E39-L132 1 For rear mounting Sensor I/O Connectors Shape Type Single-end connector (Straight) Cord type Model 2m XS2F-D421-D80-A 5m XS2F-D421-G80-A 4-wire cord Single-end connector (L-shaped) A-134 2m XS2F-D422-D80-A 5m XS2F-D422-G80-A Standard Photoelectric Sensors F502-EN2-04.book Seite 135 Dienstag, 26. Juli 2005 5:48 17 Specifications Ratings/Characteristics Control output Remote control input1 Remote control output1 Bank selection Circuit protection Response time Ambient illumination (on receiver lens) Ambient temperature Ambient humidity Insulation resistance Dielectric strength Vibration resistance2 Shock resistance3 Degree of protection Connection method Weight with package box Material Others 1. 2. 3. E3M-VG11 10±3 mm 1 x 4 mm E3M-VG12 E3M-VG21 4 x 1 mm E3M-VG22 E3M-VG16 E3M-VG17 1 x 4 mm E3M-VG26 E3M-VG27 E3M-V Item Sensing distance Spot size (W x H) Light source (wavelength) Power supply voltage Current consumption 4 x 1 mm Green LED (525 nm) 10 to 30 VDC, ripple (p-p) 10% max. 100 mA max. Load power supply voltage: 30 VDC max. Load power supply voltage: 30 VDC max. Load current: 100 ma max. Load current: 100 mA max. (Residual voltage: 2 V max.) (Residual voltage: 1.2 V max.) PNP open collector output type NPN open collector output type ON: Short-circuited to 0 or 1.5 V max. ON: VCC - 1.5 V to VCC (with a flow current of 1 mA max.) (with an absorption current of 3 mA max.) OFF: Open or VCC - 1.5 V to VCC OFF: Open or 1.5 V max. (with a leakage of 0.1 mA max.) (with a leakage current of 0.1 mA max.) Load power supply voltage: 30 VDC max. Load power supply voltage: 30 VDC max. Load current: 100 ma max. Load current: 100 mA max. (Residual voltage: 2 V max.) (Residual voltage: 1.2 V max.) PNP open collector output type NPN open collector output type Two banks selectable. Available for remote control only. (Refer to Remote Control Function.) Protection from reversed power supply connection and load short-circuit ON: 50 µs max. OFF: 70 µs max. Incandescent lamp: 3,000 lx max. Sunlight: 10,000 lx max. Operating: -20°C to 55°C/Storage: -30°C to 70°C (with no icing) Operating: 35% to 85%/Storage: 35% to 95°C (with no condensation) 20 M min. (at 500 VDC) 1,000 VAC, 50/60Hz, 1 min. Destruction: 10 to 55 Hz, 1-mm double amplitude or 150 m/s2 for 2 hrs each in X, Y, and Z directions Destruction: 500 m/s2 3 times each in X, Y, and Z directions IEC60529 IP67 (with protective cover) Connector Pre-wired Connector Pre-wired Connector Pre-wired Connector Pre-wired Approx. 100 g Case: Polybutylene terephthalate Lens: Acrylic (PMMA) Instruction manual Remote controll input and answer-back output share the same signal line. The Sensor withstands 0.75 mm double amplitude or 100 m/s² if the mounting bracket is attached to the sensor The Sensor withstands 300 m/s² if the mounting bracket is attached to the sensor. E3M-V A-135 F502-EN2-04.book Seite 136 Dienstag, 26. Juli 2005 5:48 17 Engineering Data Angle vs. Incident Characteristics (X Direction) Angle vs. Incident Characteristics (Y Direction) E3M-VG1@ E3M-VG1@/VG2@ E3M-VG1@/VG2@ Incidence (%) Incidence (%) Incidence (%) Sensing Distance vs. Incident Characteristics (Typical) Angle (˚) Distance (mm) Angle (˚) Color Sensing Capacity Differences in Incident by Color Red purple Black ∆ @: Detectable ∆ ∆ @ @ @ ∆: Detectable but unstable @ @ X @ @ @ @ ∆ ∆ @ @ @ @ @ @ X ∆ @ @ @ @ @ @ @ @ @ @ @ @ @ @ X X: Not detectable Standard Sensing Object (Color vs. Munsell) Glossy Sensing Objects Japan Color Enterprises Standard Color Card 230 Incline the Sensor to detect glossy objects so that the Sensor will not be influenced by the mirror reflection of light and to ensure the stable sensing operation of the E3M-V. Sensing object A-136 Color X Technical Guide 5 to 155 Black X @ @ X @ @ @ @ @ @ @ @ @ @ @ Red purple Purple @ @ @ @ @ @ @ @ @ @ @ @ Blue Blue @ @ @ @ @ @ @ @ @ @ @ @ Purple Blue green @ @ @ @ @ @ @ @ @ Green Green @ @ @ @ @ @ @ @ @ @ Blue green Green yellow @ @ Yellow Yellow @ Yellow green Yellow red @ @ @ @ @ @ @ @ @ @ Red Red Yellow red White Purple Red Black purple White Blue Yellow Yellow Yellow green Green green Blue red White Red Incidence (%) E3M-VG@@ 5 to 155 11 standard colors White Red Yellow red Yellow Yellow green Green Blue green Blue Purple Red purple Black Munsell color notation 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 Sensing object Standard Photoelectric Sensors F502-EN2-04.book Seite 137 Dienstag, 26. Juli 2005 5:48 17 E3M-V Nomenclature Threshold Indicators (Red) Displays the threshold level. Operation Indicator (Orange) Lit when the output is ON. Mode Selector Selects the mode. Detection Level Indicators (Green) Displays the detection level. SET Button Used for teaching and threshold adjustments. UP/DOWN Selector Increases the threshold value when set to UP. Decreases the threshold value when set to DOWN. Operation Output Circuits NPN (E3M-VG11, E3M-VG12, E3M-VG21, E3M-VG22) Detection level indicators (green, 8 levels) Threshold inidcators (red, 13 levels) 1 Brown Load 2 (See note.) Load White Remote control input /Answer-back output Main circuit 4 Operation indicator (orange) 3 10 to 30 VDC Black Control output 100 mA max. Blue Connector Pin Arrangement PNP (E3M-VG16, E3M-VG17, E3M-VG26, E3M-VG27) Brown Detection level indicators (green, 8 levels) Threshold inidcators (red, 13 levels) 1 4 Main circuit Control output Remote control input /Answer-back output 2 Operation indicator (orange) 10 to 30 VDC White Load (See note.) 3 E3M-V Black Load Blue A-137 F502-EN2-04.book Seite 138 Dienstag, 26. Juli 2005 5:48 17 Adjustments Adjustment Steps 1. Install, wire, and turn ON the Photomicrosensor. 2. Perform teaching (mark registration). Refer to Mark Registration (Teaching). 3. Make fine adjustments of the threshold level if necessary. Refer to Threshold Level Adjustments on page A-139 . 4. Check that the mode selector is set to RUN. Mark Registration (Teaching) Two-point Teaching Refer to the following for ideal teaching. Application The base has a color pattern. The mark and base are clearly different in color. The base has no color pattern. The mark and base are slightly different in color. The base has no color pattern. Remote teaching with no positioning is desired. ‚ ‚ ‚ One-point teaching Two-point teaching Auto-teaching The default level is set and the output is ON when the mark is detected. The threshold level is set between the color of the mark and base. The output is ON when the mark is detected. The threshold level is set between color of the mark and base. The output is ON when the mark (i.e., the color with shorter passing time) is detected. Refer to the following for each teaching method. Remote one- or twopoint teaching is possible. Refer to Remote Control Function. 1 Set the mode selector to TEACH. 2 Locate the mark to the sensing position and press the SET button. All the red threshold indicators will turn ON. Sensor Mark Base Push Red threshold indicators are ON. 3 If teaching is successfull, move the mark and press the SET button at the base. • If teaching is successfull, all the green detection level indicators are ON. • If teaching is unsuccessfull, all the red threshold level indicator flash. One-point Teaching 1 Set the mode selector to TEACH. 2 Locate the mark to the sensing position and press the SET but- Green detection level indicators are ON. Sensor ton. Then all the red threshold indicators are ON. Mark Sensor Base Push Teaching is OK Mark Base All the red threshold level indicators will flash if there is no difference in incident. Push Red threshold indicators are ON. Teaching is NG 3 Set the mode selector to RUN. The output will be ON whenever the set mark is detected. Note: By teaching on the base, reversed output as shown above (base: ON, mark: OFF) can be obtained. 4 If teaching is successful, set the mode selector to RUN to complete the teaching operation. If teaching is unsuccessful, restart from the above step 2. Note: Follow the above steps so that the output will be turned ON whenever the mark is detected. By taking the opposite steps, the output will be turned OFF whenever the mark is detected and turned ON whenever the base is detected. A-138 Standard Photoelectric Sensors F502-EN2-04.book Seite 139 Dienstag, 26. Juli 2005 5:48 17 1. 2. 3. • • Check that the mode selector is set to either RUN or ADJUST. Input a 0.9-s pulse signal into the remote control I/O terminal.1 Auto-teaching starts when the mark is moved. When the mark passes six times, auto-teaching completes. If teaching is successful, answer-back output from the remote control I/O terminal will turn ON for 0.3 s. If teaching is unsuccessful, no answer-back signal will be output. Readjust using two-point teaching. (Teaching will be unsuccessful if there is no difference in incident between the mark and base.) 4. If the answer-back signal is ON, the whole teaching operation will be completed. The output will be turned ON whenever the mark (i.e., the color with shorter passing time) is detected. Auto-teaching Remote control input/ Answer-back output Teaching completes and detection starts Teaching starts Auto-teaching Answer-back Time Incident Mark (shorter passing time): Output ON Optimal threshold level set Base: Output OFF Dummy sampling (1st mark) Time Sampling (5th mark) Threshold Level Adjustments Example of Connection to Programmable Controller Programmable Controller Sensor I/O Unit Remote control I/O It is possible to make fine adjustments of the threshold level after teaching. Such fine adjustments can be made remotely as well. Refer to Remote control Function (Bank Selection, Mark Registration, and Threshold Adjustments) on page A-140 . 1 Set the mode selector to ADJUST Select the upper or lower threshold selector. Whenever the SET button is pressed, the threshold level will move. Two indicators will be lit together when the threshold level is an even level. Output Input Note: Be sure to connect the E3M-V to the Programmable Controller as shown above. The threshold level increases. Precautions when Using Automatic Teaching Incorrect discrimination may be caused by automatic teaching in the following cases. Use one-point or two-point teaching in such cases. • Color patterns exist in the base. • Sensing objects change their positions. • Sensing objects have protrusions or surface level differences. Upper threshold limit Press The threshold level decreases. 2 Lower threshold limit Threshold indicators Threshold level 3 After setting the level, set the mode selector to RUN. 1. Make sure that the input tolerance of each pulse is within ±0.1 s. E3M-V A-139 E3M-V Auto-teaching F502-EN2-04.book Seite 140 Dienstag, 26. Juli 2005 5:48 17 Detection Level Indicator Detection Level Indicator Control Signals The control output of the E3M-V will be turned ON if the detection level exceeds the threshold level. The indication of the detection level varies with the teaching method. One-point Teaching The upper and lower threshold values are set on the basis of the mark and the detection level indicators indicate the degree of color conformity to the mark's color. Detection level indicators Detection level No. 1 Control signal Function Bank 1 is selected (operation indicator OFF in TEACH mode) 2 Bank 2 is selected (operation indicator ON in TEACH mode) 3 Auto-teaching 4 Two-point teaching (1st and 2nd) 5 One-point teaching (or input for 1.5 s min.) 6 Threshold level 1 is selected. 7 Threshold level 3 is selected. 8 Threshold level 5 is selected. 9 Threshold level 7 is selected. 10 Threshold level 9 is selected. 11 Threshold level 11 is selected. 12 Threshold level 13 is selected. Operation indicator Output OFF Threshold value Output ON Mark Threshold value Output OFF Threshold value Two-point or Auto-teaching A single threshold value is set between the mark (registered first) and the base (registered next). The detection level indicators indicate the tolerance between the mark and base. Detection level indicators Detection level Operation indicator Mark Output ON Threshold value Output OFF Base Note: The input error of each signal pulse must be within ± 0.1 s Threshold value Ladder Program Example Remote control Function (Bank Selection, Mark Registration, and Threshold Adjustments) Under Run Mode or Adjust Mode Control signals are input by a ladder program as shown below. TIM000, TIM001, and TIM002 set values The input of any of the signals listed in the following table into the remote control I/O terminal allows remote control of the E3M-V. When the signal is accepted, answer-back output will be turned ON for 0.3 s. Only in the case of one-point teaching, however, can the signal be manually input, provided that the input is ON for 1.5 s or more. Timing Chart Answer-back output: ON only when the process completes normally. 2.5 s min. Remote control I/O Sensor operation 2.0 s Input signal Input discrimination (1.8 s) 0.3 s Setting change Next input signal Input: 00000 Output: 00100 Others: IR bits Detection restarts Note: If Signals are sent continuously, make sure that there is an interval of 2.5 s between signal inputs as shown above. A-140 Standard Photoelectric Sensors F502-EN2-04.book Seite 141 Dienstag, 26. Juli 2005 5:48 17 Dimensions Note: All units are in millimeters unless otherwise indicated. E3M-V Mark Sensors Connector Models Eight detection level indicators Seven level threshold indicators Operation indicator M2.6 Optical axis M2.6 nut 10-dia. lens Mounting Holes Two, 4.5-dia. mounting holes Two, M4 M12 Connector 47.8 Pre-Wired Models 45 Two, 4.5 dia. mounting holes 25 67.8 29 43 Vinyl-insulated round cable with three conductors, 6 dia. (17 x 0.16 dia.); standard length: 2 m E3M-V A-141 F502-EN2-04.book Seite 142 Dienstag, 26. Juli 2005 5:48 17 Accessories (Order Separately) Mounting Brackets E39-L131 Two, 4.2 dia. 905+15 Material: Stainless steel (SUS304) E39-L132 4.2 dia. 905+15 Material: Stainless steel (SUS304) A-142 Standard Photoelectric Sensors F502-EN2-04.book Seite 143 Dienstag, 26. Juli 2005 5:48 17 Sensor I/O Connectors Single-end Connector (Straight Model) E3M-V XS2F-D421-D80-A (L=2 m) XS2F-D421-G80-A (L=5 m) 6 dia. 5 dia. 14.9 dia. Single-end Connector (L-shaped Model) XS2F-D422-D80-A (L=2 m) XS2F-D422-G80-A (L=5 m) 6 dia. 5 dia. Installation Sensor I/O Connector Pin No. Wire colors Brown White Blue Black DC/AC Note: 1 . pin No. 2 is not used. 2 . For details, refer to the Sensor I/O Connectors Catalog (X065) E3M-V Classification DC Connector pin No. Wire color Brown 1 --- 2 Blue 3 Black 4 Use Power supply (+V) --Power supply (0V) Output A-143 F502-EN2-04.book Seite 144 Dienstag, 26. Juli 2005 5:48 17 Precautions Observe the following precautions to ensure safety. • Do not use the Sensor in locations subject to flammable or explosive gases. • Do not use the Sensor in water or conductive solution. • Do not disassemble, repair, or modify the Sensor. • Use the Sensor under proper power supply specifications such as the use of AC or DC power supply. • Do not apply any voltage or current exceeding the rated level. • Be careful with the power supply polarities and wire correctly. • Connect the loads correctly. • Do not short-circuit both ends of loads. Correct Use Installation Power Reset Time Mounting Screw Tightening Make sure that the casing is tightened to a maximum torque of 1.2 N o m. Mounting Direction When Sensors are mounted to face each other, make sure to adjust the optical axes so that the Sensors will not be mutually interfered. Others EEPROM Write Error An EEPROM error may result if power supply to the Sensor fails or the Sensor is influenced by static noise, in which case the threshold level indicators will flash. Perform the teaching and threshold level setting of the E3M-V again. M12 Metal Connector Since the E3M-V is ready to detect objects from 100 ms max. after the E3M-V is turned ON, operate the remaining devices 100 ms after the Sensor is turned ON. If power is supplied to the E3M-V and the load independently, be sure to turn on the E3M-V first. Power OFF The E3M-V may output a single pulse when the control power supply is turned OFF. If the E3M-V is connected to a timer or counter to which power is supplied from an independent power supply, the E3MV will be more likely to output a single pulse when the control power supply is turned OFF. Therefore, supply power to the timer or counter from the same power supply for the E3M-V. Make sure to connect or disconnect the metal connector after turning off the E3M-V. Make sure to hold the connector cover when connecting or disconnecting the metal connector. Tighten the metal connector securely by hand. Do not use any tool, such as pliers, otherwise the metal connector may be damaged. If the metal connector is not tightened securely, the metal connector may be disconnected by vibration and the proper degree of protection of the E3M-V may not be maintained. Power Supply Type No full-wave or half-wave rectified power supplies can be connected to the E3M-V. Power Supply Connection Be sure to ground the FG (frame ground) and G (ground) terminals if a switching regulator is connected to the E3M-V, otherwise the E3MV may malfunction due to the switching noise of the switching regulator. Wiring Cable The cable can be extended up to 100 m provided that the thickness of the cable is 0.3 mm2 minimum. Repeated Cable Bending The cable must not be bent repeatedly. High-tension Lines The power supply lines of the Sensor must not be wired alongside power lines or high-tension lines in the same conduit, otherwise the Sensor may become damaged or malfunction due to induction noise that may be generated from the power lines or high-tension lines. Route the lines separately or in a single conduit. Cable Pulling Force Do not pull cables with pulling forces exceeding 50N. 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. E280-E2-01A-X A-144 In the interest of product improvement, specifications are subject to change without notice. Standard Photoelectric Sensors