Ultrasonic Displacement Sensor E4PA-N Now, more advanced with a new mutual interference prevention function. • Long-distance detection of up to 6,000 mm supports a wide vari- ety of applications. The Sensor is not affected by the color or material of objects. A setting plug with temperature compensation makes it easy to set the sensing range. Mutual interference prevention. For the most recent information on models that have been certified for safety standards, refer to your OMRON website. Application Examples Detecting slackness in sheet Detecting liquid levels Remotely detecting LCD Detecting dies materials wafers 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 Four types of Sensors are available with max- reflective objects. Measurements are performed with no contact, so imum sensing distances of 0.5 m, 2 m, 4 m, even highly-viscous liquids are no problem. and 6 m. With the 0.5-m type, a repeat accu- racy of 1 mm or better has been achieved. OK OK OK OK Transparent objects Black objects Reflective Highly viscous liquids objects ■ A setting plug with a temperature compensation ■ The mutual interference prevention function allows function makes it easy to set the sensing range. up to five Sensors to be used in close proximity. The sensing range can be set by the Setting Plug, which is included with the Sensor. No special con- troller is required. The Setting Plug’s built-in tem- perature sensor provides superior temperature Setting characteristics of ±1% FS. plug E4PA-N Ultrasonic Displacement Sensor 1 Ordering Information ■ Sensors (Refer to Dimensions on page 7.) 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 A Connector is not provided with the Sensor. Be sure to order a Connector separately. (Refer to Dimensions on page 8.) Cable Shape Cable length Model Standard Cable 2 m 5 conductors XS2F-D521-DG0-A Straight 5 m XS2F-D521-GG0-A 4-to-5 Conductor Conver- 0.3 m --- E4PA-C01 sion Cable (See note.) Note: 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 A plug is not provided with the Sensor. (Refer to Dimensions on page 8.) Shape Model Remarks E4PA-P1 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. 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 34 ms 77 ms 143 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) 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 2 Shock resistance Destruction: 300 m/s three times each in X, Y, and Z directions Connection method 5-conductor connector Degree of protection IEC60529: IP65 Weight (packed) Approx. 240 g Approx. 320 g Approx. 400 g Materials Case: Stainless steel (SUS303) Sensing surface: PBT resin, polyurethane, glass epoxy resin Clamping nut: Stainless steel (SUS303) Accessories Operation Manual Note: Values are given one hour after power-up. The outputs may fluctuate due to external disturbances. 2 E4PA-N Ultrasonic Displacement Sensor Engineering Data ■ Sensing Distances (Reference Value) E4PA-LS50-M1-N E4PA-LS200-M1-N 200 400 150 300 100 200 50 100 0 0 100 200 300 400 500 600 0.5 1 1.5 2 2.5 Distance X (mm) Distance X (m) -50 -100 -100 -200 X X -150 -300 Y Y -200 -400 E4PA-LS400-M1-N E4PA-LS600-M1-N 1,000 1,000 800 800 600 600 400 400 200 200 0 0 1234 5 123 4 5 6 7 Distance X (m) -200 Distance X (m) -200 -400 -400 X X -600 -600 -800 -800 Y Y -1,000 -1,000 Output Circuit Sensor I/O Connector 10 to 30 V 1 Mutual Class Wire PIn Application 5 interference Terminal No. color No. prevention 4 to 20 mA Wire color code code E4PA-N 4 1 Brown 2 White For Brown 1 Power supply (+V) Ri≤500 Ω 0 to 10 V 3 Blue 2 4 DC Black 5 White 2 Voltage output Gray Rv≥1,000 Ω 0 V 3 Blue 3 Power supply (0 V) Black 4 Current output Connector pin arrangement Contact Arrangement (Mating Surface) Gray 5 Mutual interference 1 prevention input 2 5 4 2 3 5 1 3 4 E4PA-N Ultrasonic Displacement Sensor 3 Distance Y (mm) Distance Y (mm) Distance Y (mm) Distance Y (mm) 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) RUN indicator (yellow) Notch on Sensor Error indicator (red) Power indicator (green) Setting Plug The E4PA-N is set up by aligning the notch on the Sensor with one (1) Output increase mode of the triangular marks on the Setting Plug and inserting the Setting Nearest point Farthest point 20 mA/10 V Plug into the Sensor. Position Function 4 mA/0 V A1 Nearest sensing point A1 A2 Farthest sensing point A2 (2) Output from 0 mm 20 mA/10 V E2/E3 Analog output characteristics (See note 1.) 1. Increase: As the distance increases, the output in- creases. (LED A2 flash.) 0 mm 2. Output from 0 mm: Increases from the sensing surface to point A2. (LED A1 and A2 flash.) (See note 2.) Dead band 3. Decrease: As the distance increases, the output de- distance creases. (LED A1 flash.) (3) Output decrease mode T Temperature compensation setting (normal operating condition) 20 mA/10 V Note: 1. Analog Output Characteristics when Setting Plug is inserted at E2/ 4 mA/0 V 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 A1 A2 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 Setting Plug Power indicator Error indicator (red) RUN indicator A1 RUN indicator A2 Analog position (green) (yellow) (yellow) output Normal operation Temperature compensation T Lit Not lit Lit/Not lit Lit/Not lit Present value (See note 1.) (See note 1.) Setting Plug not inserted Not lit Lit Lit/Not lit Lit/Not lit Present value (See note 1.) (See note 1.) Malfunction sensing (when Not lit Flashing Lit/Not lit Lit/Not lit No change or detecting external distur- (See note 2.) (See note 2.) unstable bance) Sensing distance A1 set- With sensing object A1 Flashing Not lit Flashing Not lit No change ting Without sensing object Not lit Flashing Flashing Not lit No change Sensing distance A2 set- With sensing object A2 Flashing Not lit Not lit Flashing No change ting Without sensing object Not lit Flashing Not lit Flashing No change Analog output characteris- (1) Output increase mode E2/E3 Lit Not lit Flashing Not lit No change tics setting (2) Output decrease mode Lit Not lit Not lit Flashing No change (3) Output from 0 mm Lit Not lit Flashing (synchronous) Flashing (synchronous) No change Power turned ON None Flashing Not lit Previous status Previous status No change Note: 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 3. Setting Analog Output Characteristics Mode Step Setting/Operation 1 Remove the Setting Plug. Step Setting/Operation 1 Insert the Setting Plug at the E2/E3 position. (Align the notch on the Sen- 2 Turn ON the power. sor with the E2/E3 triangular mark on E2/E3 position (See note.) the Setting Plug.) 3 Proceed to Step 2 Setting Sensing Range. Note: Do not insert the Setting Plug yet. It must be inserted within A2 RUN indicator (yellow) flashing: five minutes after the power is turned ON, however, or the set- ● Analog output characteristics: Decrease mode up will not be possible. If that happens, power up again and In this mode, the analog output decreases start over. (20 to 4 mA/10 to 0 V) as the E2 E3 sensing object nears the E4PA 2. Setting Sensing Range within the sensing range. A1 A2 Step Setting/Operation The mode changes when the Setting Plug 1 Place the sensing object at the nearest point within the sensing is reinserted at the E2/E3 position. range. Sensing object 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) E2 E3 as the sensing object nears the 50 mm (for E4PA-LS50-M1-N) E4PA within the sensing range. A1 A2 2 Insert the Setting Plug at the A1 position. (Align the notch on the Sensor with the A1 triangular mark A1 position The mode changes when the Setting Plug on the Setting Plug.) is reinserted at the E2/E3 position. The power indicator (green) and A1 and A2 RUN indicators (yellow) flashing at the same time: E2 E3 the A1 RUN indicator (yellow) with ● Analog output characteristics: Output from 0 mm flash, showing that the near dis- A1 A2 In this mode, the analog output tance has been correctly set. decreases (20 to 4 mA/10 to 0 V) 3 Remove the Setting Plug. (In this as the sensing object nears the state, the setting is confirmed and E2 E3 recorded.) E4PA between the farthest sensing point and 0 mm. A1 A2 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). 2 After the analog output characteristics have been set, remove the 500 mm (for E4PA-LS50-M1-N) Setting Plug. 5 Insert the Setting Plug at the A2 position. (Align the notch on the Sensor with the A2 triangular mark A2 position on the Setting Plug.) 3 Proceed to Step 4 Setting Temperature Compensation Mode. The power indicator (green) and E2 E3 the A2 RUN indicator (yellow) will 4. Setting Temperature Compensation Mode flash, showing that the far distance A1 A2 has been correctly set. Step Setting/Operation 6 Remove the Setting Plug. (In this state, the setting is confirmed and 1 Insert the Setting Plug at the T posi- recorded.) tion. (Align the notch on the Sensor with the T triangular mark on the Set- 7 Proceed to Step 3 Setting Analog Output Characteristics Mode. T position ting Plug.) 2 Leave the Setting Plug inserted where it is. (This completes the set- up.) Note: To maintain the temperature compensation, leave the Setting Plug inserted during operation. If it is re- moved from the E4PA, the temperature compensa- tion 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 com- pensation 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 Facing Arrangement ■ Precautions for Safe Use E4PA-N E4PA-N Design 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 Model Y power supply has overcurrent detection, the protective circuit may be E4PA-LS50-M1-N 2 m min. activated by the inrush current. E4PA-LS200-M1-N 8 m min. Recommended power supply: OMRON S82-series Power Supply E4PA-LS400-M1-N 16 m min. (Capacity: 15 W min.) E4PA-LS600-M1-N 25 m min. Wiring Sensing Object Power Supply Voltage The sensing object may be solid, liquid, or powder, and the detec- Do not exceed the operating voltage range. Using a higher voltage tion capability of the Sensor will vary depending on the surface con- or using an AC power supply (100 VAC or more) for a DC Sensor ditions of the object. If the surface irregularities are no more than 0.2 can cause explosion or burning. mm, then the specified sensing distance will apply. Materials such as fine powder, felt, cotton, and other materials that absorb sound Faulty Wiring should be tested before using the Sensor. Be careful not to make wiring mistakes such as reversing the power If the surface temperature of the sensing object is over 100 °C, there supply polarity. Faulty wiring can cause explosion or burning. will be very little ultrasonic reflection. Conduct tests before using the Sensor. Operating Environment Influence of Sensing Angle Do not use the Sensor in an environment where inflammable or explosive gas is present. Ultrasonic Displacement Sensors can detect solid, liquid, or powder sensing objects, but the surface of the sensing object will affect the Others measurement. Dented surfaces or sensing objects with an angled • Do not attempt to disassemble, repair, or modify any Units. Any at- surface require a tilt angle within 3° max. to achieve accurate sens- tempt to do so may result in malfunction, fire, or electric shock. ing. Dispose of Sensors as industrial waste. Sensing object E4PA-N ■ Precautions for Correct Use Design 3° 3° Sensor Ambient Temperature and Humidity Installation The acoustic velocity generally fluctuates approximately 0.17% with each 1°C of temperature change. For example, if the ambient tem- Mounting the Sensor perature increases from 20 to 40°C, then the acoustic velocity will increase by 3.5%. Moreover, the acoustic velocity will increase by The Sensor must be mounted using the nuts provided, and tightened 2% in dry air compared with air with 100% humidity. Test the environ- to a torque of 15 N·m max. mental conditions where the Sensor will actually be used. If the Sensor malfunctions due to noise, insert insulation between Mutual Interference the Sensor and the mounting base (metal). The mutual interference prevention function can be used with up to Atmosphere five Sensors in close proximity. Separate the Sensors as specified in To ensure reliability and long servic e life, do not use the Sensor out- the following table when using two or more Sensors in close proximity doors or in places that exceed the rated temperature. without using the mutual interference prevention function. Ultrasonic sensors use air as t he transmission medium, so if there Parallel Arrangement are local temperature differences there may be malfunctioning due to reflection and refraction at the boundaries, and the detection dis- E4PA-N Sensing object tances 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 Y Sensing object E4PA-N the Sensor and should not be used nearby. Water drops on the Sensor surf ace shorten the sensing distance. Wiring Considerations Note: The values shown in the following table are examples for ref- erence only. The actual values will vary depending on the sur- Cable Length face conditions of the sensing object, and on the ultrasonic waves that are reflected. Moreover, if the sensing object is in- The cable must be no longer than 10 m. clined, the Y value in the table will be increased further. High-voltage Lines Model Y Do not lay power supply cable for the E4PA-N Ultrasonic Displace- E4PA-LS50-M1-N 0.3 m min. ment Sensor together with high-voltage lines or power lines. Placing E4PA-LS200-M1-N 1 m min. them in the same conduit or duct may result in interference, damage, E4PA-LS400-M1-N 2 m min. or malfunction. E4PA-LS600-M1-N 2.5 m min. 6 E4PA-N Ultrasonic Displacement Sensor Dimensions Note: All units are in millimeters unless otherwise indicated. ■ Sensors E4PA-LS50-M1-N Two clamping nuts M30 × 1.5 5 Setting Plug Indicator (See note.) Note: RUN indicator (yellow) Power indicator (green) Error indicator (red) 36 22 (12) (25) M12 × 1 114 27.5 E4PA-LS200-M1-N Two clamping nuts M30 × 1.5 5 Indicator (See note.) Setting Plug Note: RUN indicator (yellow) Power indicator (green) 36 22 (12) Error indicator (red) (25) M12 × 1 114 27.5 E4PA-LS400-M1-N Two clamping nuts M30 × 1.5 5 Indicator (See note.) Setting Plug 40 dia. Note: 1. RUN indicator (yellow) Power indicator (green) Error indicator (red) 2. This is the dimension between the flat sides of 36 22 (12) the nuts. (See note 2.) 25 (25) 128 27.5 M12 × 1 E4PA-LS600-M1-N 73 dia. 19 Two clamping nuts (See note 2.) M30 × 1.5 5 Indicator (See note.) Setting Plug (41.6) 22 (12) 32.5 (25) M12 × 1 132 27.5 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) 45° M12 6 dia. 5 dia. 14.9 dia. 40.7 30 5 L50 4-to-5 Conductor Conversion Cable E4PA-C01 45° M12 18 M12 1 6 dia. 1 5 dia. 4 45° 14.9 dia. 14.9 dia. 2 2 4 3 5 5 dia. 3 34 47.1 48 300 Setting Plug E4PA-P1 25 10 4.2 2.5 6.9 dia. 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_5_3_1012 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. 2012.10 In the interest of product improvement, specifications are subject to change without notice. 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