Ultrasonic Displacement Sensor E4PA-N Now, more advanced with a new mutual interference prevention function. Application Examples Detecting slackness in sheet materials Detecting liquid levels Remotely detecting LCD wafers Detecting dies Features ■ The Sensor is ultrasonic, so it is not affected by the ■ High-precision detection with a color of objects. wide range of measurements. A variety of materials can be measured, including transparent and reflective objects. Measurements are performed with no contact, so even highly-viscous liquids are no problem. Four types of Sensors are available with maximum sensing distances of 0.5 m, 2 m, 4 m, and 6 m. With the 0.5-m type, a repeat accuracy of 1 mm or better has been achieved. OK Transparent objects ■ A setting plug with a temperature compensation function makes it easy to set the sensing range. The sensing range can be set by the Setting Plug, which is included with the Sensor. No special controller is required. The Setting Plug’s built-in temperature sensor provides superior temperature characteristics of ±1% FS. OK Black objects OK Reflective objects OK Highly viscous liquids ■ The mutual interference prevention function allows up to five Sensors to be used in close proximity. Setting plug E4PA-N Ultrasonic Displacement Sensor 1 Ordering Information ■ Sensors Sensing range Model 50 to 500 mm E4PA-LS50-M1-N 120 to 2,000 mm E4PA-LS200-M1-N 240 to 4,000 mm E4PA-LS400-M1-N 400 to 6,000 mm E4PA-LS600-M1-N ■ Accessories (Order Separately) Sensor I/O Connectors Cable Standard Cable Shape Cable length 2m Straight Model 5 conductors 5m 4-to-5 Conductor Conversion Cable (See note.) Note: XS2F-D521-DG0-A XS2F-D521-GG0-A 0.3 m --- E4PA-C01 When you use a 4-pole sensor connector cable, the E4PA-C01 is useful for converting from 4 to 5 poles. If this is done, however, you cannot use the mutual interference prevention function. Setting Plug Shape Model E4PA-P1 Remarks Attached to each Sensor Specifications ■ Ratings/Characteristics Item E4PA-LS50-M1-N E4PA-LS200-M1-N E4PA-LS400-M1-N E4PA-LS600-M1-N Sensing range 50 to 500 mm 120 to 2,000 mm 240 to 4,000 mm 400 to 6,000 mm Dead band distance 0 to 50 mm 0 to 120 mm 0 to 240 mm 0 to 400 mm Standard sensing object 100 × 100 mm flat plate Applied frequency Approx. 380 kHz Approx. 180 kHz Approx. 85 kHz Approx. 65 kHz Response time 63 ms max. 195 ms max. 440 ms max. 850 ms max. Power supply voltage 10 to 30 VDC; ripple (p-p): 10% max. Power consumption 1,800 mW max. 77 ms 143 ms Analog output Current output: 4 to 20 mA (Allowable load resistance: 500 Ω max.) Voltage output: 0 to 10 V (1,000 Ω min.) Protective circuit Load short-circuit protection, mutual interference prevention Mutual interference prevention cycle time 10 ms Linearity ±1% FS max. Repeat accuracy (See note.) 0.1% FS max. Temperature influence ±1% FS of output value at +23°C in the temperature range of -10 to 55°C Voltage influence ±5% FS max. within rated power supply voltage range Ambient temperature Operating: -10 to 55°C (with no icing or condensation) Storage: -40 to 85°C (with no icing or condensation) Ambient humidity Operating and storage: 35% to 85% (with no condensation) 34 ms Insulation resistance 50 MΩ min. (at 500 VDC) between current-carrying parts and case Dielectric strength 1,000 VAC (50/60 Hz) for 1 min between current-carrying parts and case Vibration resistance Destruction: 10 to 55 Hz, 1-mm double amplitude for 2 hours each in X, Y, and Z directions Shock resistance Destruction: 300 m/s2 three times each in X, Y, and Z directions Connection method 5-conductor connector Degree of protection IEC60529: IP65 Weight (packed) Approx. 240 g Materials Case: Sensing surface: Clamping nut: Accessories Operation Manual Note: 2 Approx. 320 g Stainless steel (SUS303) PBT resin, polyurethane, glass epoxy resin Stainless steel (SUS303) Values are given one hour after power-up. The outputs may fluctuate due to external disturbances. E4PA-N Ultrasonic Displacement Sensor Approx. 400 g Engineering Data E4PA-LS50-M1-N E4PA-LS200-M1-N Distance Y (mm) Distance Y (mm) ■ Sensing Distances (Typical Examples) 200 150 100 50 0 400 300 200 100 100 200 300 400 500 0 600 0.5 Distance X (mm) 1 1.5 2 2.5 Distance X (m) -50 -100 -100 -200 X X -150 -300 Y Y -200 E4PA-LS400-M1-N E4PA-LS600-M1-N Distance Y (mm) Distance Y (mm) -400 1,000 800 600 1,000 800 600 400 400 200 200 0 1 2 3 4 0 5 Distance X (m) -200 1 2 3 4 5 6 -400 7 Distance X (m) -200 -400 X -600 -800 X -600 -800 Y -1,000 Y -1,000 Output Circuit E4PA-N 1 10 to 30 V 5 Mutual interference prevention 4 to 20 mA 4 2 Ri≤500 Ω 0 to 10 V Sensor I/O Connector 2 1 Brown White Blue Black Gray 3 5 Rv≥1,000 Ω 0V Connector pin arrangement Wire color code For DC Brown 1 White 2 Voltage output Blue 3 Power supply (0 V) Wire color code 4 3 Class Terminal No. Contact Arrangement (Mating Surface) 1 2 5 4 PIn No. Application Power supply (+V) Black 4 Current output Gray 5 Mutual interference prevention input 2 3 5 3 1 4 E4PA-N Ultrasonic Displacement Sensor 3 Nomenclature M12 connector for Sensor I/O (5 poles) Sensor Setting Plug connector Setting Plug Triangular mark on Setting Plug Notch on Sensor RUN indicator (yellow) Notch on Sensor RUN indicator (yellow) Power indicator (green) Error indicator (red) Setting Plug The E4PA-N is set up by aligning the notch on the Sensor with one of the triangular marks on the Setting Plug and inserting the Setting Plug into the Sensor. Nearest point Farthest point 20 mA/10 V (1) Output increase mode Position 4 mA/0 V Function A1 Nearest sensing point A1 A2 Farthest sensing point A2 E2/E3 (See note 1.) Analog output characteristics 20 mA/10 V (2) Output decrease mode 4 mA/0 V 1. Increase: As the distance increases, the output increases. (LED A1 flash.) 20 mA/10 V 2. Decrease: As the distance increases, the output decreases. (LED A2 flash.) (3) Output from 0 mm 3. Output from 0 mm: Increases from the sensing surface to point A2. (LED A1 and A2 flash.) (See note 2.) T Note: 0 mm A1 Dead band distance Temperature compensation setting (normal operating condition) A2 1. Analog Output Characteristics when Setting Plug is inserted at E2/ E3 Position: The analog output characteristics will change from (1) to (2) to (3), in that order, each time the Setting Plug is inserted with the E2/E3 position aligned with the notch on the Sensor. 2. The analog output value can be compensated so that the sensing surface (0 mm) of the Sensor is 4 mA/0 V regardless of the nearest sensing point setting. This function is useful when using Controllers without a scaling function. Sensing is not possible, however, for characteristics within the dead band distance and current/voltage output values may not be stable. Indicator Display and Analog Output Characteristics Status Normal operation Temperature compensation RUN indicator A1 (yellow) RUN indicator A2 (yellow) Analog output Lit/Not lit (See note 1.) Lit/Not lit (See note 1.) Present value Setting Plug not inserted Not lit Lit Lit/Not lit (See note 1.) Lit/Not lit (See note 1.) Present value Malfunction sensing (when detecting external disturbance) Not lit Flashing Lit/Not lit (See note 2.) Lit/Not lit (See note 2.) No change or unstable Flashing Not lit Flashing Not lit No change Not lit Flashing Flashing Not lit No change Flashing Not lit Not lit Flashing No change Not lit Flashing Not lit Flashing No change No change Sensing distance A2 setting With sensing object Analog output characteristics setting (1) Output increase mode Note: Error indicator (red) Not lit With sensing object T Power indicator (green) Lit Sensing distance A1 setting Power turned ON Setting Plug position A1 Without sensing object A2 Without sensing object Lit Not lit Flashing Not lit (2) Output decrease mode E2/E3 Lit Not lit Not lit Flashing No change (3) Output from 0 mm Lit Not lit Flashing (synchronous) Flashing (synchronous) No change Flashing Not lit Previous status Previous status No change None 1. Lit: The sensing object is within the sensing range. Not lit: The sensing object is not within the sensing range. 2. Output indicator just prior to occurrence of malfunction. Mutual Interference Prevention The E4PA-N provides a sync input to prevent mutual interference. When the fifth pin of the Sensor I/O Connector’s M12 Connector is interconnected, mutual interference can be prevented for up to five Units. The Sensors will mutually oscillate, however, causing a delay in measurement time by the mutual interference cycle time per Sensor × number of Units + response time. When the sync inputs are not connected, the mutual interference prevention function is disabled. (For example, if three E4PA-LS200-M1-N are connected, the response time for one Sensor is 34 ms × 3 Sensors + 195 ms = 297 ms. 4 E4PA-N Ultrasonic Displacement Sensor Operation Setup and Operating Procedure The E4PA-N is factory-set for the decrease mode for analog output characteristics and for the maximum sensing range. These settings enable scaling with the connected device (e.g., the K3NX). In this case, only step 4 is required. To change the analog output range, follow steps 1 to 4 below. 1. Preparation for Setup Step 1 3. Setting Analog Output Characteristics Mode Setting/Operation Remove the Setting Plug. Step 1 2 Turn ON the power. (See note.) 3 Proceed to Step 2 Setting Sensing Range. Note: Do not insert the Setting Plug yet. It must be inserted within five minutes after the power is turned ON, however, or the setup will not be possible. If that happens, power up again and start over. A2 RUN indicator (yellow) flashing: ● Analog output characteristics: Decrease mode In this mode, the analog output decreases (20 to 4 mA/10 to 0 V) as the E2 sensing object nears the E4PA within the sensing range. A1 A2 2. Setting Sensing Range Step 1 A1 RUN indicator (yellow) flashing: ● Analog output characteristics: Increase mode In this mode, the analog output increases (4 to 20 mA/0 to 10 V) E3 E2 as the sensing object nears the E4PA within the sensing range. A1 A2 Insert the Setting Plug at the A1 position. (Align the notch on the Sensor with the A1 triangular mark on the Setting Plug.) The power indicator (green) and the A1 RUN indicator (yellow) with flash, showing that the near distance has been correctly set. The mode changes when the Setting Plug is reinserted at the E2/E3 position. A1 position A1 and A2 RUN indicators (yellow) flashing at the same time: ● Analog output characteristics: Output from 0 mm In this mode, the analog output decreases (20 to 4 mA/10 to 0 V) as the sensing object nears the E3 E2 E4PA between the farthest sensing point and 0 mm. A1 A2 E3 E2 A1 A2 3 Remove the Setting Plug. (In this state, the setting is confirmed and recorded.) 4 Place the sensing object at the farthest point within the sensing range. Sensing object Note: Check the input impedance of connected devices and the analog output in Ratings/Characteristics (see page 2). 500 mm (for E4PA-LS50-M1-N) Insert the Setting Plug at the A2 position. (Align the notch on the Sensor with the A2 triangular mark on the Setting Plug.) The power indicator (green) and the A2 RUN indicator (yellow) will flash, showing that the far distance has been correctly set. 6 7 E3 The mode changes when the Setting Plug is reinserted at the E2/E3 position. 50 mm (for E4PA-LS50-M1-N) 5 E2/E3 position Setting/Operation Place the sensing object at the nearest point within the sensing range. Sensing object 2 Setting/Operation Insert the Setting Plug at the E2/E3 position. (Align the notch on the Sensor with the E2/E3 triangular mark on the Setting Plug.) 2 After the analog output characteristics have been set, remove the Setting Plug. 3 Proceed to Step 4 Setting Temperature Compensation Mode. A2 position E3 E2 A1 A2 Remove the Setting Plug. (In this state, the setting is confirmed and recorded.) 4. Setting Temperature Compensation Mode Step 1 Proceed to Step 3 Setting Analog Output Characteristics Mode. 2 Setting/Operation Insert the Setting Plug at the T position. (Align the notch on the Sensor with the T triangular mark on the Setting Plug.) T position Leave the Setting Plug inserted where it is. (This completes the setup.) Note: To maintain the temperature compensation, leave the Setting Plug inserted during operation. If it is removed from the E4PA, the temperature compensation will be disabled. Note: If the reflection from the Sensor is extremely weak, or if the sensing object is set outside of the sensing range, the error indicator (red) will flash to show that the sensing range is not accurately set. If the Setting Plug is left removed for five minutes or longer, temperature compensation will be disabled (status before setting). If it becomes necessary to change the settings for step 2 (Sensing Range) or step 3 (Analog Output Characteristics Mode) after steps 1 through 4 have been completed, the contents of all the previous settings will be remembered, so only the items to be changed need to be reset. Go through the steps in order, from 1 to 4, and reset only the items to be changed. E4PA-N Ultrasonic Displacement Sensor 5 Safety Precautions ■ Precautions for Safe Use Facing Arrangement E4PA-N Design E4PA-N Power Supply X If possible, use a power supply without overcurrent detection. This Sensor uses a DC-DC converter in the power supply circuit. If the power supply has overcurrent detection, the protective circuit may be activated by the inrush current. Recommended power supply: OMRON S82-series Power Supply (Capacity: 15 W min.) Wiring Model E4PA-LS50-M1-N Y 2 m min. E4PA-LS200-M1-N 8 m min. E4PA-LS400-M1-N 16 m min. E4PA-LS600-M1-N 25 m min. Sensing Object Power Supply Voltage Do not exceed the operating voltage range. Using a higher voltage or using an AC power supply (100 VAC or more) for a DC Sensor can cause explosion or burning. Faulty Wiring Be careful not to make wiring mistakes such as reversing the power supply polarity. Faulty wiring can cause explosion or burning. Operating Environment Do not use the Sensor in an environment where inflammable or explosive gas is present. Others • Do not attempt to disassemble, repair, or modify any Units. Any attempt to do so may result in malfunction, fire, or electric shock. • Dispose of Sensors as industrial waste. ■ Precautions for Correct Use • The sensing object may be solid, liquid, or powder, and the detection capability of the Sensor will vary depending on the surface conditions of the object. If the surface irregularities are no more than 0.2 mm, then the specified sensing distance will apply. Materials such as fine powder, felt, cotton, and other materials that absorb sound should be tested before using the Sensor. • If the surface temperature of the sensing object is over 100°C, there will be very little ultrasonic reflection. Conduct tests before using the Sensor. Influence of Sensing Angle Ultrasonic Displacement Sensors can detect solid, liquid, or powder sensing objects, but the surface of the sensing object will affect the measurement. Dented surfaces or sensing objects with an angled surface require a tilt angle within 3° max. to achieve accurate sensing. E4PA-N Design Sensing object 3° Sensor Ambient Temperature and Humidity The acoustic velocity generally fluctuates approximately 0.17% with each 1°C of temperature change. For example, if the ambient temperature increases from 20 to 40°C, then the acoustic velocity will increase by 3.5%. Moreover, the acoustic velocity will increase by 2% in dry air compared with air with 100% humidity. Test the environmental conditions where the Sensor will actually be used. Mutual Interference Separate the Sensors as specified in the following table when using two or more Sensors in close proximity to one another. The mutual interference prevention function can be used with up to five Sensors. Parallel Arrangement Sensing object E4PA-N E4PA-N Y Sensing object 3° Installation Mounting the Sensor The Sensor must be mounted using the nuts provided, and tightened to a torque of 15 N·m max. If the Sensor malfunctions due to noise, insert insulation between the Sensor and the mounting base (metal). Atmosphere • To ensure reliability and long service life, do not use the Sensor outdoors or in places that exceed the rated temperature. • Ultrasonic sensors use air as the transmission medium, so if there are local temperature differences there may be malfunctioning due to reflection and refraction at the boundaries, and the detection distances change where wind blows. Therefore, the Sensor should not be used near equipment such as forced-air ventilators. • Jets from air nozzles include various frequencies, so they can affect the Sensor and should not be used nearby. • Water drops on the Sensor surface shorten the sensing distance. Wiring Considerations Note: The values shown in the following table are examples for reference only. The actual values will vary depending on the surface conditions of the sensing object, and on the ultrasonic waves that are reflected. Moreover, if the sensing object is inclined, the Y value in the table will be increased further. Model Y E4PA-LS50-M1-N 0.3 m min. E4PA-LS200-M1-N 1 m min. E4PA-LS400-M1-N 2 m min. E4PA-LS600-M1-N 2.5 m min. 6 E4PA-N Ultrasonic Displacement Sensor Cable Length The cable must be no longer than 10 m. High-voltage Lines Do not lay power supply cable for the E4PA-N Ultrasonic Displacement Sensor together with high-voltage lines or power lines. Placing them in the same conduit or duct may result in interference, damage, or malfunction. Dimensions Note: All units are in millimeters unless otherwise indicated. ■ Sensors E4PA-LS50-M1-N M30 × 1.5 Two clamping nuts 5 Setting Plug Indicator (See note.) Note: RUN indicator (yellow) Power indicator (green) Error indicator (red) 36 22 (12) (25) 27.5 114 M12 × 1 E4PA-LS200-M1-N M30 × 1.5 Two clamping nuts 5 Indicator (See note.) 36 22 Setting Plug Note: RUN indicator (yellow) Power indicator (green) Error indicator (red) (12) (25) 27.5 114 M12 × 1 E4PA-LS400-M1-N M30 × 1.5 Two clamping nuts 5 Indicator (See note.) Setting Plug 40 dia. Note: 1. RUN indicator (yellow) Power indicator (green) Error indicator (red) 22 36 (See note 2.) 25 (25) 27.5 128 2. This is the dimension between the flat sides of the nuts. (12) M12 × 1 E4PA-LS600-M1-N 73 dia. 19 M30 × 1.5 Two clamping nuts (See note 2.) 5 Indicator (See note.) Setting Plug (41.6) 22 32.5 132 (12) (25) 27.5 M12 × 1 Note: 1. RUN indicator (yellow) Power indicator (green) Error indicator (red) 2. The distance between the flat sides of the nuts is 36 mm. E4PA-N Ultrasonic Displacement Sensor 7 ■ Accessories (Order Separately) Standard (Straight) XS2F-D521-DG0-A (L=2 m) XS2F-D521-GG0-A (L=5 m) M12 5 dia. 18 45° 6 dia. 14.9 dia. 30 34 48 5 50 L 4-to-5 Conductor Conversion Cable E4PA-C01 M12 5 dia. 45° 1 18 M12 6 dia. 1 4 14.9 dia. 45° 14.9 dia. 2 4 3 5 47.1 34 3 2 5 dia. 48 300 Setting Plug E4PA-P1 25 10 4.2 6.9 dia. 2.5 3.2 dia. 8 dia. 10.1 dia. ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. CSM_3_1_0110 D099-E1 In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation Industrial Automation Company Sensing Devices Division H.Q. Application Sensors Division Shiokoji Horikawa, Shimogyo-ku, Kyoto, 600-8530 Japan Tel: (81)75-344-7068/Fax: (81)75-344-7107 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 the 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 products. 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 PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. PROGRAMMABLE PRODUCTS OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof. 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 products 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 products. DIMENSIONS AND WEIGHTS Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown. 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. ERRORS AND OMISSIONS The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions. 2010.1 In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation Industrial Automation Company http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2010 All Right Reserved.