Ultrasonic Proximity Sensor E4C Compact, Cylindrical Ultrasonic Proximity Sensor with Separate Amplifier Unit Stable operation for a variety of objects regardless of color, transparency, or material (metallic or nonmetallic). Compact M18-sized cylindrical head. Prevent mutual interference using a synchroniza- tion selector. With reflective models, setting sensing zones ensures detection without influence by the background. Ordering Information Sensors (Refer to Dimensions on page 7.) Sensing method Through-beam Reflective (convergent reflective) Amplifier Units (Refer to Dimensions on page 7.) Sensing distance Model Supply voltage Model 50 cm E4C-TS50 12 to 24 VDC E4C-WH4T 10 to 35 cm E4C-LS35 12 to 24 VDC E4C-WH4L Application Examples Detection of transparent bottles and containers Detection of milk packages 1 E4C E4C Specifications Ratings/Characteristics Sensors Model Item Sensing method E4C-TS50 E4C-LS35 Through-beam Reflective Sensing distance 50 cm 10 to 35 cm (possible to limit the sensing zone within a range between 2 and 25 cm) Standard sensing object 10 x 10 cm flat plate 4 x 4 cm flat plate Ultrasonic oscillation frequency Approx. 270 kHz Response frequency 50 Hz Directional angle (see note 1) 8 max. Indicator SENSING indicator (red LED) 20 Hz Ambient temperature Operating: -10C to 55C (with no icing) Ambient humidity Operating: 35 to 95% Vibration resistance Destruction: 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions Shock resistance Destruction: 500 m/s2 (approx. 50G) 3 times each in X, Y, and Z directions Degree of protection (see note 2) IEC IP66 Cord length 2m Weight Material Note: Approx. 300 g (with Emitter and Receiver) Case Heat-resistant ABS resin Oscillator Ceramic Nut Polyacetal resin Approx. 150 g 1. This is the half-value angle obtainable with a signal of -6 dB. 2. The enclosure rating indicates the degree of protection of the case, which will depend on the operating condition. Amplifier Units Model Item E4C-WH4T Sensing method E4C-WH4L Through-beam Reflective Sensing distance 50 cm 10 to 35 cm Supply voltage (operating voltage range) 12 to 24 VDC 10% with a max. ripple 10% (p-p) Current consumption 100 mA max. at 12 VDC Differential travel --- 20% max. of rated sensing distance Response frequency (see note) 50 Hz 20 Hz Control output (residual voltage) Terminal output: 100 mA max. (NPN or PNP open collector output at 40 VDC with a residual voltage of 2 V) Connector output: 50 mA max. (photocoupler output) Operation mode Normally open or normally closed (selectable with a slide switch) Ultrasonic compensation Yes Indicator SENSING indicator (red LED) and STABILITY indicator (green LED) Ambient temperature Operating: -10C to 55C (with no icing) Ambient humidity Operating: 35 to 95% Temperature influence 30% max. of sensing distance at 20C in the 10% max. of sensing distance at 20C in the temperature range of -10C and 55C temperature range of -10C and 55C 10% max. of sensing distance at a voltage between 90% and 110% of the rated power supply voltage Voltage influence Insulation resistance 20 M min. (at 500 VDC) between current carry parts and case Dielectric strength 1,000 VAC (50/60 Hz) for 1 min between current carry parts and case Vibration resistance Destruction: 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions Shock resistance Destruction: 500 m/s2 (approx. 50G) 3 times each in X, Y, and Z directions Degree of protection IEC IP40 Weight Approx. 110 g Materials Case: ABS Note: 2 The response frequencies are values obtained with the E4C used for detecting the rotating propeller-shaped disc as shown on the right. E4C E4C Space:blade = 1:1 Engineering Data E4C-LS35 E4C-TS50 E4C-LS35 Standard sensing object (4 x 4 cm flat plate) Operating range Operating range Power supply voltage: 12 VDC Sensitivity Adjuster: Max. Sensing object dia. d (cm) Operating Distance vs. Sensing Object Size (Typical) Operating distance Y (cm) Parallel Movement Characteristics (Typical) Sensing range Y (cm) Sensing Range (Typical) E4C-TS50+ E4C-WH4T Sensitivity adjuster: Max. Emitter Sensing object (dia. d mm) Operating distance X (cm) Object passing position X (cm) Sensor: Temperature varied Amplifier: Constant room temperature Sensitivity adjuster: Max. Ambient temperature (C) Sensor: Constant room temperature Amplifier: Temperature varied Sensitivity adjuster: Max. Ambient temperature (C) Sensor and Amplifier: Same temperature variation Sensitivity adjuster: Max. Ambient temperature (C) E4C-TS50+E4C-WH4T Variation rate of sensing distance (%) E4C-TS50+E4C-WH4T Variation rate of sensing distance (%) Distance adjuster: 10 Zone adjuster: 25 Variation rate of sensing distance (%) E4C-LS35 Operating range Receiver Setting distance X (cm) Ambient Temperature vs. Variation Rate of Sensing Distance (Typical) E4C-LS35+E4C-WH4L Variation rate of sensing distance (%) Operating range Setting distance X (cm) Operating Distance vs. Sensing Object Angle (Typical) Angle () Sensing object dia. d (cm) E4C-TS50 Operating range Sensing object: Column Dia.: d (cm) Obtain the point that turns Y1 and Y2 ON while changing the sensing distance (X). Sensing distance X (cm) Sensing adjuster: 10 Zone adjuster: 25 Sensor and Amplifier: Same temperature variation Distance adjuster: 10 Zone adjuster: 25 Ambient temperature (C) 3 E4C E4C Sensitivity Adjuster Position vs. Parallel Movement Characteristics E4C-LS35+E4C-WH4L Variation rate of sensing distance (%) Variation rate of sensing distance (%) Sensor: Temperature varied Amplifier: Constant room temperature Distance adjuster: 10 Zone adjuster: 25 Sensor: Constant room temperature Amplifier: Temperature varied Distance adjuster: 10 Zone adjuster: 25 Ambient temperature (C) E4C-TS50+E4C-WH-4T Operating distance Y (cm) E4C-LS35+E4C-WH4L Obtain the point that turns Y1 and Y2 ON while changing the sensing distance (X). Sensitivity adjuster: Center Sensitivity adjuster: Max. Ambient temperature (C) Setting distance X (cm) Amplifier Units Indicators Asynchronous/Synchronous (MON/SYN) Switch * STABILITY Indicator (Green) * If more than one Sensor is used in one place, the Sensors need to be in synchronous operation for the prevention of mutual interference. A maximum of four Sensors can be in synchronous operation. When this indicator is lit, the ultrasonic input into the Receiver is sufficient, or its interruption small enough, to ensure the smooth operation of the E4C. Do not operate the E4C when this indicator is not lit. * SENSING Indicator (Red) * Connect the DC power supply and Sensor to each Amplifier as usual. When this indicator is lit, the Receiver has ultrasonic input. * Use the E99-C (order separately) connector to connect the Sensor to the Amplifier. Operation Selector (H1/H2) * If the case of the connections shown in the following illustration, set the selector of only one Amplifier (No. 1 in the following case) to MON. Set the selector of any other Amplifier to SYN. Incident-ON (H1) Light incident Light interrupted SENSING indicator (red) Output transistor (Both PNP and NPN outputs) (see note) ON (see note) E99-C Connector (order separately) (see note) OFF ON OFF Load (e.g., relay) Operate Release Incident-OFF (H2) Light incident Light interrupted SENSING indicator (red) Output transistor (Both PNP and NPN outputs) ON ON OFF Load (e.g., relay) Operate Release Note: 4 Amplifiers Sensors OFF The load in operation is connected to the output circuit of the E4C. Note: The E99-C Connector will be most effective if the E4C is a reflective model although the E99-C Connector is required by both the reflective and through-beam models. When using through-beam models, however, be sure to maintain enough between adjacent Sensors to suppress mutual interference. Refer to Sensitivity Adjuster Position vs. Parallel Movement Characteristics in Engineering Data. E4C E4C Sensitivity/Zone Adjustments E4C-TS50 and E4C-WH4T Through-beam Models Pass the sensing object through the sensing range and adjust the sensitivity so that the SENSING indicator turns ON and OFF according the presence or absence of the sensing object while the STABILITY indicator is lit continuously. Set the SENSITIVITY adjuster of the Receiver to maximum. Move the Emitter and Receiver vertically and horizontally until the SENSING indicator of the Receiver is lit and secure the Emitter and Receiver at the midpoint of the range within which the STABILITY indicator is lit. If the STABILITY indicator is not lit while the Sensor is in operation, this may indicate a possible operational error. Check or readjust the sensitivity. If the Emitter and Receiver are set at a distance shorter than the rated sensing distance, reduce the sensitivity to within the range in which the STABILITY indicator is lit. This will increase the immunity of the Sensor against noise. Range in which the STABILITY indicator (green) lit Optimum line Range in which the SENSING indicator (red) lit E4C-LS35 and E4C-WH4L Convergent Reflective Model Locate the Sensor so that both the STABILITY and SENSING indicators will be lit when the sensing object is placed at the sensing position, and the STABILITY indicator will be lit and the SENSING indicator will turn OFF when the sensing object is removed. 2 4 Background Sensing object Background Sensing object 35 cm Background Background Distance adjuster 3 Sensing object 1 Sensing object Step Sensing --- --- Move the Emitter and Receiver vertically and horizontally and secure the Emitter and Receiver at the midpoint of the range within which the STABILITY indicator is lit. Remove the sensing object The sensing zone can be and check that the SENS- set within a range of 2 to 25 ING indicator is OFF and cm with the zone adjuster. the STABILITY indicator is continuously lit. Zone adjuster Adjustment procedure Note: Place the sensing object at the sensing position and turn the distance adjuster clockwise gradually until both the SENSING and STABILITY indicators are lit. (See note 2) 1. If the STABILITY indicator is not lit while the Sensor is in operation, this indicates a possible operational error. Check or readjust the sensitivity. 2. The sensing distance is adjustable within a range of 10 to 35 cm with the distance adjuster. 3. Adjust the sensing zone within the sensing distance adjustable range (i.e., 10 to 35 cm). 5 E4C E4C Sensing Zone Setting Example Relationship between Incident-ON and IncidentOFF Sensing zone Example: Sensing distance set to 15 cm and zone set to 10 cm Sensing distance Sensing zone adjustment adjustment Incident-ON Note: Make the settings as shown above to set a sensing zone of 10 cm with a sensing distance adjustment of 15 cm. Background object Sensing distance Sensing zone adjustment adjustment Incident-OFF Unstable sensing zone Stable sensing zone (adjustable) (Outside the ratings) Note: Non-sensing zone (Outside the ratings) Set the zone within a distance of 10 to 35 cm from the Sensor. Therefore, if the distance adjuster is set to 30 cm and zone adjuster is set to 20 cm, the sensing zone will be 5 cm from a point 30 cm away from the Sensor. Step 1 2 Distance adjuster and zone adjuster Adjustment procedure Set the distance adjuster to 15 cm Set the zone adjuster to 10 cm. Nomenclature E4C-WH4T E4C-WH4L Asynchronous/Synchronous (MON/SYN) operation selector Asynchronous/Synchronous (MON/SYN) operation selector Operation (H1/H2) selector Operation (H1/H2) selector SENSING indicator Sensitivity adjuster STABILITY indicator Operation Output Circuit 12 to 24 V Load E4C main circuit PNP output 100 mA max. Load NPN output 100 mA max. 0V 6 Zone adjuster SENSING indicator STABILITY indicator Distance (sensing distance) adjuster E4C E4C Dimensions Note: All units are in millimeters unless otherwise indicated. Sensors E4C-TS50 E4C-LS35 SENSITIVITY indicator Mounting Holes 18.5 dia. 11 dia. 8 dia. 9 dia. (See note) Note: E4C-TS50R or E4C-LS35: 3-conductor, shielded cord (6 dia., UL2791) with 7/0.25 dia. (standard length: 2 m) E4C-TS50S: 2-conductor, shielded cord (6 dia., UL20276) with 7/0.25 dia. (standard length: 2 m) Amplifier Units E4C-WH4T Eight, M3.5 terminal screws Two, M4 screw mounting holes Mounting Holes Two, 4.5 dia. (See note) Note: DIN track mounting side E4C-WH4L Eight, M3.5 terminal screws Two, M4 screw mounting holes Mounting Holes Two, 4.5 dia. (See note) Note: DIN track mounting side 7 E4C E4C Installation Connections E4C-WH4T E4C-WH4L 12 to 24 VDC Output 1 (NPN) 100 mA max., 40 VDC max. Output 2 (PNP) 100 mA max., 40 VDC max. Black White 12 to 24 VDC Output 2 (PNP) 100 mA max., 40 VDC max. Output 1 (NPN) 100 mA max., 40 VDC max. Red Black Red Shield White Shield E4C-LS35 E4C-TS50 Precautions Correct Use Sensor Mounting Angle Environmental Conditions If the E4C is in level control or distance control of sensing objects, the stability of signal detection will depend on the sensing surface condition of the objects. Considering the repose angle of the objects, mount the E4C so that the ultrasonic beam and the sensing surface of each object meet at right angles to each other. Do not use the E4C at a temperature exceeding the rated range or outdoors, otherwise the reliability and life of the E4C will decrease. Surrounding Objects Make sure that the Sensor is free from surrounding objects that reflect the ultrasonic beam diffusion, otherwise the Sensor may malfunction. In particular, pay the utmost attention so that no side lobe of the ultrasonic beam will be reflected by such objects. Mounting The Ultrasonic Reflective Sensor utilizes the air as a beam transmission media. Do not use the E4C in places with radical convection or extreme local temperature changes. For example, if there is a hot air curtain that causes turbulence within the sensing area, the E4C may malfunction. Turbulence Air curtain Securely mount the E4C by using the nuts provided with the E4C or the mounting holes of the E4C. Refer to Dimensions for details. Emitter Do not strike the Sensor with any hammer or other object, otherwise the E4C will no longer be water-resistant. If the E4C is not mounted securely, the E4C may be damaged by vibration or may not detect sensing objects accurately due to a possible change in the mounting position. Receiver The jetting sound of air nozzles includes noise of a wide frequency range, which will affect the operation of the E4C. Do not use an air nozzle near the E4C. The sensing distance of the E4C will decrease if there is any water drops on the surface of the emitter or receiver. The reflective model may not detect any objects if there is any object absorbing sound, such as powder and cotton, on the surface of the emitter or receiver. 8 E4C E4C Mutual Interference If more than one Unit is closely mounted together or used in a narrow space, the mutual interference of the Sensors will result. To prevent this, set the MON/SYN selector to SYN and check that no mutual interference results. Connections The cord length between the Sensor and Amplifier can be a maximum of 20 m provided that the cord is a three-conductor, shielded cord (6 dia., UL2791) with 7/0.25 dia. If the Emitter is the E4C-TS50S, however, use a two-conductor, non-shielded cord (6 dia. UL20276) with 7/0.25 dia. Do not wire the lines of the E4C along with high-tension or power lines in the same conduit or close together, otherwise the E4C may malfunction due to inductive noise. The power supply lines of the Amplifier can be extended up to 100 m provided that the size of the cord is 0.3 dia. or more. Others Be sure not to turn the sensitivity adjuster excessively. If the sensitivity adjuster is turned exceeding the permissible range, no sensitivity adjustment will be possible again. Take the measures shown in the following illustrations if multiple reflection results. 5-dia. slit Wall Wall Urethane rubber or sponge The sensing distance will be, however, reduced to half (i.e., 10 to 17 cm) if the slit is used. If the sensing zone is set to a small value (i.e., a few centimeters) on the E4C reflective model, the E4C may require a warming-up time of 3 minutes or more after the E4C is turned ON. 9 E4C 10 E4C E4C E4C 11 E4C E4C 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_1010 D072-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. 2010.10 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.