Slim Proximity Sensor TL-T Slim Model of Width 12 mm. * Ideal for side-by-side mounting. Be sure to read Safety Precautions on page 5. Ordering Information Appearance Shielded Unshielded Sensing distance 2 mm 5 mm Model Output configuration Output specifications NPN NO TL-T2E1 NC TL-T2E2 PNP TL-T2F1 --- AC 2-wire models TL-T2Y1 TL-T2Y2 DC 3-wire models NPN TL-T5ME1 TL-T5ME2 TL-T5MY1 TL-T5MY2 DC 3-wire models AC 2-wire models Note: Models with a different frequency are available. The model numbers are TL-T@@@5. (e.g., TL-T2E15). http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. 1 TL-T Ratings and Specifications Model TL-T2E1 TL-T2Y1 TL-T5ME1 TL-T5MY1 TL-T2E2 TL-T2Y2 TL-T5ME2 TL-T5MY2 Item TL-T2F1 Sensing distance 2 mm10% 5 mm10% Setting distance 0 to 1.6 mm 0 to 4 mm Differential travel 10% max. of sensing distance Ferrous metal (The sensing distance decreases with non-ferrous metal. Refer to Engineering Data on Sensing object page 3.) Standard sensing object Iron 12 x 12 x 1 mm Iron 15 x 15 x 1 mm E and F models: 800 Hz, E models: 250 Hz, Response frequency Y models: 20 Hz Y models: 20 Hz Supply voltage E and F models: 12 to 24 VDC (10 to 30 VDC), ripple (p-p): 20% max. (operating voltage range) Y models: 100 to 220 VAC (90 to 250 VAC) 50/60 Hz Current consumption E and F models: 15 mA max. at 24 VDC Leakage current Y models: 2.5 mA max. at 200 VAC Switching E and F models: 100 mA max. at 12 VDC, 200 mA max. at 24 VDC Y models: 10 to 200 mA Control capacity output Residual E and F models: 1.0 V max. with a load current of 100 mA and cord length of 2 m voltage Y models: Refer to Residual Voltage (Typical) on page 3. Indicators Detection indicator (red) E1 models: NO Operation mode E2 models: NC (with sensing object apF1 models: NO Refer to I/O Circuit Diagrams Timing Chart on page 4. proaching) Y1 models: NO Y2 models: NC E models: Reverse connection protection and surge absorber Circuit protection Y models: Surge absorber Ambient temperature Operating/Storage: -25C to 70C (with no icing or condensation) Ambient humidity Operating/Storage: 35% to 95% (with no condensation) Temperature influence 10% max. of sensing distance at 23% in the temperature range of -25 to 70C E and F models: 2.5% max. of sensing distance within a range of 15% of the rated power supply voltage Voltage influence Y models: 2.5% max. of sensing distance within a range of 10% of the rated power supply voltage Insulation resistance 50 M min. (at 500 VDC) between case and current-carrying parts E and F models: 1,000 VAC, 50/60 Hz for 1 min between case and current-carrying parts Dielectric strength Y models: 2,000 VAC, 50/60 Hz for 1 min between case and current-carrying parts Vibration resistance 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions (destruction) Shock resistance 500 m/s2 for 10 times each in X, Y, and Z directions (destruction) Degree of protection IEC IP67, in-house standard for oil-resistance Connection method Pre-wired Models (Standard cable length: 2 m) Weight (packed state) Approx. 70 g Case Heat-resistant ABS resin Material Sensing surface Accessories Instruction sheet http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. 2 TL-T Engineering Data (Typical) 6 5 TL-T5M 4 Y Iron 2 1.8 1.6 Stainless steel (SUS304) Distance X (mm) Sensing Object Size and Material Influence TL-T2 TL-T5M Distance X (mm) Distance X (mm) Operating Range TL-T2@/T5@ 6 Iron 5 Stainless steel (SUS304) 4 1.4 X @d 1.2 3 X t = 1 mm 3 1 Brass 2 Aluminum 0.6 1 Brass 2 0.8 TL-T2 X 0.4 -6 -4 -2 0 4 2 6 8 0 5 Distance Y (mm) 10 Residual Voltage (Typical) TL-T@(M)Y@ at 100 VAC TL-T@(M)Y@ Load voltage VL (V) Residual output voltage ON 100 V 15 20 25 at 200 VAC Residual output voltage 200 ON V 50 200 VAC A 50 Residual load voltage 0 5 10 100 150 200 Load current (mA) http://www.ia.omron.com/ 10 15 20 25 30 35 40 Side length of sensing object: d (mm) Leakage Current (Typical) TL-T@Y R 6 A AC power supply 5 4 0 2 1 Residual load voltage OFF 50 5 t = 1 mm 3 100 VAC A 0 Side length of sensing object: d (mm) Load voltage VL (V) Sensing Head Leakage current (mA) 0 -8 Aluminum @d 1 5 10 OFF 50 100 150 200 Load current (mA) 0 90 100 150 200 250 Supply voltage (V) (c)Copyright OMRON Corporation 2008 All Rights Reserved. 3 TL-T I/O Circuit Diagrams DC 3-wire Models Operation Output mode specifications Models Timing charts Output circuits Present Sensing object Not present TL-T2E1 TL-T5ME1 NO Load (between brown and black) Operate Reset Output voltage (between black and blue) Brown H +V L ON Detection indicator (red) OFF Sensing object Present NPN Load Proximity Sensor main circuit 4.7 k 2.2 Black *1 Out- *2 put Tr Not present TL-T2E2 TL-T5ME2 NC Load (between brown and black) Blue Operate 0V Reset Output voltage (between black and blue) H L *1. 200 mA (load current) *2. When a transistor is connected ON Detection indicator (red) OFF Brown +V Present Sensing object Tr Not present NO PNP TL-T2F1 Load (between brown and black) Operate Reset Output voltage (between black and blue) H L Proximity Sensor main circuit 4.7 k Black*2 2.2 Output *1 Load Blue 0V ON Detection indicator (red) OFF *1. 200 mA (load current) *2. When a transistor is connected AC 2-wire Models Operation mode Models Timing charts Output circuits Present Sensing object Not present NO TL-T2Y1 TL-T5MY1 Operate Load Reset Brown ON Detection indicator (red) Load OFF Proximity Sensor main circuit Blue Present Sensing object Not present NC TL-T2Y2 TL-T5MY2 Load Operate Detection indicator (red) http://www.ia.omron.com/ Reset ON OFF (c)Copyright OMRON Corporation 2008 All Rights Reserved. 4 TL-T Safety Precautions WARNING This product is not designed or rated for ensuring safety of persons. Do not use it for such purposes. Mutual Interference When two or more Sensors are mounted face-to-face or sideby-side, separate them as shown below. The table below indicates the minimum distances A and B. * Do not short the load. Explosion or burning may result. * Do not supply power to the Sensor with no load connected, otherwise internal parts may be damaged or burnt. Applicable Models: AC 2-wire Models A B Mutual Interference Precautions for Correct Use Distance Model TL-T2 TL-T5 Do not use this product under ambient conditions that exceed the ratings. Design Effect of Surrounding Metals * Be sure to separate the Sensor from surrounding metal objects as shown in the following illustration. (Unit: mm) A B 40 (10) 120 (60) 12 (0) 80 (40) Note: Figures in parentheses will apply if the Sensors in use are different from each other in response frequency. Mounting * At the time of rear mounting, be sure that the tightening torque does not exceed 0.59 N*m. 12 mm 15 mm 25 mm Mounting screw 0.59 N*m 15 mm 15 mm * At the time of side mounting, be sure that the tightening torque does not exceed 0.78 N*m. 15 mm 15 mm Mounting screw 0.78 N*m * The TL-T2 will not be influenced by metal when it is embedded in metal. (Unit: mm) Dimensions Unless otherwise specified, the tolerance class IT16 is used for dimensions in this data sheet. TL-T@ Indicator *2 Two, 3.1-dia. holes *1 4 5 9 320.2 160.2 Two, M3, depth 6 6 Sensing surface 4 170.2 26 12 40 *1. DC-switching model: 4.0-dia. vinyl-insulated round cable with 3 conductors (Conductor cross section: 0.2 mm2, Insulator diameter: 1.2 mm), Standard length: 2 m AC-switching model: 4.0-dia. vinyl-insulated round cable with 2 conductors (Conductor cross section: 0.3 mm2, Insulator diameter: 1.3 mm), Standard length: 2 m *2. Detection indicator (red) In the interest of product improvement, specifications are subject to change without notice. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. 5 Proximity Sensors Technical Guide For precautions on individual products, refer to the Safety Precautions in individual product information. General Precautions WARNING These products cannot be used in safety devices for presses or other safety devices used to protect human life. These products 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 Considerations Item Power Supply Voltage Do not use a voltage that exceeds the operating voltage range. Applying a voltage that is higher than the operating voltage range, or using an AC power supply (100 VAC or higher) for a Sensor that requires a DC power supply may cause explosion or burning. Load short-circuiting Typical examples DC 3-Wire NPN Output Sensors DC 2-Wire Sensors Load Brown Sensor Load Brown Sensor Black Blue Blue * DC 2-Wire Sensors * Even with the load short-circuit protection function, protection will not be provided when a load short circuit occurs if the power supply polarity is not correct. DC 3-Wire NPN Output Sensors * Do not short-circuit the load. Explosion or burning may result. * The load short-circuit protection function operates when the power supply is connected with the correct polarity and the power is within the rated voltage range. Load Load Brown Sensor Black (Load short + circuit) - Brown Be sure that the power supply polarity and other wiring is correct. Incorrect wiring may cause explosion or burning. Blue DC 3-Wire NPN Output Sensors Load Brown Sensor - Black + Brown Sensor If the power supply is connected directly without a load, the internal elements may explode or burn. Be sure to insert a load when connecting the power supply. Load Blue + - Black Blue Connection without a Load - + Sensor Blue Incorrect Wiring (Load short circuit) * DC 2-Wire Sensors * Even with the load short-circuit protection function, protection will not be provided if both the power supply polarity is incorrect and no load is connected. AC 2-Wire Sensors Brown Sensor Brown - + Sensor Blue Blue Operating Environment Do not use the Sensor in an environment where there are explosive or combustible gases. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. C-1 Proximity Sensors Technical Guide Precautions for Correct Use The following conditions must be considered to understand the conditions of the application and location as well as the relation to control equipment. Model Selection Item Points of consideration Specific condiDirection of obtions of object ject movement Check the relation between the sensing object and the Proximity Sensor. Sensing object and operating condition of Proximity Sensor Material, size, shape, existence of plating, etc. Sensing object Material, distance to Sensor, orientation, etc. Fluctuation in transit point, allowable error, etc. Sensing (set) distance, shape of Sensor (rectangular, cylindrical, throughbeam, grooved), influence of peripheral metal (Shielded Sensors, Nonshielded Sensors), response speed (response frequency), influence of temperature, influence of voltage, etc. Surrounding metals Output Load Power supply Switching element Proximity Sensor Verify the electrical conditions of the control system to be used and the electrical performance of the Power Proximity Sensor. supply Load DC (voltage fluctuation, current capacity value) AC (voltage fluctuation, frequency, etc.) Need for S3D2 Controller Selecting the power supply type DC DC + S3D2 Controller AC Resistive load - Non-contact control system Inductive load - Relay, solenoid, etc. * Steady-state current, inrush current * Operating, reset voltage (current) Lamp load * Steady-state current, inrush current Open/close frequency Selecting the power supply type DC DC + S3D2 Controller AC Control output Maximum current (voltage) Leakage current Residual load voltage { { * Water Resistance Do not use the Sensor in water, rain, or outdoors. The environmental tolerance of the Proximity Sensor is better than that of other types of Sensors. However, investigate carefully before using a Proximity Sensor under harsh temperatures or in special atmospheres. Environmental conditions Sensing distance Sensing distance Proximity Sensor Electrical conditions Transit interval, speed, existence of vibration, etc. Peripheral metal * Ambient Conditions To maintain reliability of operation, do not use the Temperature Highest or lowest Temperature influence, Sensor outside the specified temperature range or and humidity values, existence high-temperature use, outdoors. Even though the Proximity Sensor has a of direct sunlight, low temperature use, water-resistant structure, it must be covered to prevent direct contact with water or water-soluble cutetc. need for shade, etc. ting oil. Do not use the Sensor in atmospheres with vapors, in particular, strong alkalis or acNeed for water resis- chemical Atmosphere Water, oil, iron ids (nitric acid, chromic acid, or hot concentrated tance or oil resistance, sulfuric acid). powder, or other special chemicals need for explosion* Explosive Atmospheres proof structure Do not use the Sensor in atmospheres where Vibration and Size, duration Need for strength, there is a danger of explosion. Use an Explosionshock mounting method proof Sensor. When deciding the mounting method, take into consideration not only restrictions due to mechanical devices, but also ease of maintenance and inspection, and interference between Sensors. Mounting conditions Wiring method, existence of inductance surges Connection Wires Wire type, length, oil-resistant cable, shielded cable, robot cable, etc. Mounting procedure Installation location Conduits, ducts, pre-wired, terminal wiring, ease of maintenance and inspection Existence of mounting brackets, direct mounting, secured with bolts or screws Ease of maintenance and inspection, mounting space Influence of external electromagnetic fields * The influence within a DC magnetic field is 20 mT* max. Do not use the Sensor at a level higher than 20 mT. * Sudden changes in the DC magnetic field may cause malfunction. Do not use the Sensor for applications that involve turning a DC electromagnet ON and OFF. * Do not place a transceiver near the Sensor or its wiring. Doing so may cause malfunction. Other considerations Cost feasibility: Price/delivery time Life: Power-ON time/frequency of use * mT (millitesla) is a unit for expressing magnetic flux density. One tesla is the equivalent of 10,000 gauss. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. C-2 Proximity Sensors Technical Guide Design Sensing Object Material Sensing distance X (mm) 8 Stainless steel 6 Brass 4 Aluminum 2 0 Copper 5 10 15 20 25 30 35 40 45 50 55 Side length (one side) of sensing object: d (mm) Sensing object shape: Square d=30mm Reset Operate 10 Steel 8 6 4 2 Aluminum 0 0.01 0.1 1 10 Thickness of sensing object: t (mm) * Influence of Plating If the sensing object is plated, the sensing distance will change (see the table below). Effect of Plating (Typical) (Reference values: Percent of non-plated sensing distance) Sensing distance X (mm) Size of Sensing Object In general, if the object is smaller than the standard sensing object, the sensing distance decreases. * Design the setup for an object size that is the same or greater than the standard sensing object size from the graphs showing the sensing object size and sensing distance. * When the size of the standard sensing object is the same or less than the size of the standard sensing object, select a sensing distance with sufficient leeway. * The thickness of ferrous metals (iron, nickel, etc.) must be 1 mm or greater. * For non-magnetic metal, a sensing distance equivalent to a magnetic body can be obtained when the coating thickness is 0.01 mm or less. With pulseresponse models (e.g., E2V), however, the characteristics may vary. Be sure to check the catalog information for the relevant model. When the coating is extremely thin and is not conductive, such as a vacuum deposited film, detection is not possible. Sensing distance X (mm) Thickness of Sensing Object The sensing distance varies greatly depending on the material of the sensing object. Study the engineering data for the influence of sensing object material and size and select a distance with sufficient leeway. * In general, if the Example: E2-X10D@ sensing object is a non14 t=1mm X magnetic metal (for 12 d example, aluminum), the sensing distance Steel 10 decreases. (SPCC) Thickness and base material of plating No plating Side length (one side) of sensing object: d (mm) Sensing Standard Stability distance sensing becomes object short Steel Brass 100 100 Zn 5 to 15 m 90 to 120 95 to 105 Cd 5 to 15 m 100 to 110 95 to 105 Ag 5 to 15 m 60 to 90 85 to 100 Cu 10 to 20 m 70 to 95 95 to 105 Cu 5 to 15 m - 95 to 105 Cu (5 to 10 m) + Ni (10 to 20 m) 70 to 95 - Cu (5 to 10 m) + Ni (10 m) + Cr (0.3 m) 75 to 95 - Mutual Interference * Mutual interference refers to a state where a Sensor is affected by magnetism (or static capacitance) from an adjacent Sensor and the output is unstable. * One means of avoiding interference when mounting Proximity Sensors close together is to alternate Sensors with different frequencies. The model tables indicate whether different frequencies are available. Please refer to the tables. * When Proximity Sensors with the same frequency are mounted together in a line or face-to-face, they must be separated by a minimum distance. For details, refer to Mutual Interference in the Safety Precautions for individual Sensors. Power Reset Time A Sensor is ready for detection within 100 ms after turning ON the power. If the load and Sensor are connected to separate power supplies, design the system so that the Sensor power turns ON first. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. C-3 Proximity Sensors Technical Guide Turning OFF the Power An output pulse may be generated when the power is turned OFF, so design the system so that the load or load line power turns OFF first. Influence of Surrounding Metal Countermeasures for Leakage Current (Examples) AC 2-Wire Sensors Connect a bleeder resistor to bypass the leakage current flowing in the load so that the current flowing through the load is less than the load reset current. The existence of a metal object other than the sensing object near the sensing surface of the Proximity Sensor will affect detection performance, increase the apparent operating distance, degrade temperature characteristics, and cause reset failures. For details, refer to the influence of surrounding metal table in Safety Precautions for individual Sensors. The values in the table are for the nuts provided with the Sensors. Changing the nut material will change the influence of the surrounding metal. Power Transformers Be sure to use an insulated transformer for a DC power supply. Do not use an auto-transformer (single-coil transformer). Precautions for AC 2-Wire/DC 2-Wire Sensors Surge Protection Although the Proximity Sensor has a surge absorption circuit, if there is a device (motor, welder, etc.) that causes large surges near the Proximity Sensor, insert a surge absorber near the source of the surges. Influence of Leakage Current Even when the Proximity Sensor is OFF, a small amount of current runs through the circuit as leakage current. For this reason, a small current may remain in the load (residual voltage in the load) and cause load reset failures. Verify that this voltage is lower than the load reset voltage (the leakage current is less than the load reset current) before using the Sensor. Using an Electronic Device as the Load for an AC 2-Wire Sensor When using an electronic device, such as a Timer, some types of devices use AC half-wave rectification. When a Proximity Sensor is connected to a device using AC half-wave rectification, only AC halfwave power will be supplied to the Sensor. This will cause the Sensor operation to be unstable. Also, do not use a Proximity Sensor to turn the power supply ON and OFF for electronic devices that use DC halfwave rectification. In such a case, use a relay to turn the power supply ON and OFF, and check the system for operating stability after connecting it. Examples of Timers that Use AC Half-wave Rectification Timers: H3Y, H3YN, H3RN, H3CA-8, RD2P, and H3CR (-A, -A8, -AP, -F, -G) http://www.ia.omron.com/ When using an AC 2-Wire Sensor, connect a bleeder resistor so that the Proximity Sensor current is at least 10 mA, and the residual load voltage when the Proximity Sensor is OFF is less than the load reset voltage. Load AC power supply voltage Vs Bleeder resistor R Calculate the bleeder resistance and allowable power using the following equation. Vs R 10 - I P I (k) P> Vs2 (mW) R : Watts of bleeder resistance (the actual number of watts used should be several times this number) : Load current (mA) It is recommend that leeway be included in the actual values used. For 100 VAC, use 10 k or less and 3 W (5 W) or higher, and for 200 VAC, use 20 k or less and 10 W (20 W) or higher. If the effects of heat generation are a problem, use the number of watts in parentheses ( ) or higher. DC 2-Wire Sensors Connect a bleeder resistor to bypass the leakage current flowing in the load, and design the load current so that (leakage current) x (load input impedance) < reset voltage. Load Bleeder resistor R Vs Calculate the bleeder resistance and allowable power using the following equation. Vs R iR - iOFFR (k) P> Vs2 R (mW) P : Watts of bleeder resistance (the actual number of watts used should be several times this number) iR : Leakage current of Proximity Sensor (mA) iOFF : Load reset current (mA) It is recommend that leeway be included in the actual values used. For 12 VDC, use 15 k or less and 450 mW or higher, and for 24 VDC, use 30 k or less and 0.1 W or higher. (c)Copyright OMRON Corporation 2008 All Rights Reserved. C-4 Proximity Sensors Technical Guide Loads with Large Inrush Current Loads, such as lamps or motors, that cause a large inrush current* will weaken or damage the switching element. In this situation, use a relay. <Removing> * While pressing the Amplifier Unit in the direction of (3), lift the fiber plug in the direction of (4) for easy removal without a screwdriver. * E2K, TL-N@Y: 1 A or higher Mounting Mounting the Sensor (4) When mounting a Sensor, do not tap it with a hammer or otherwise subject it to excessive shock. This will weaken water resistance and may damage the Sensor. If the Sensor is being secured with bolts, observe the allowable tightening torque. Some models require the use of toothed washers. For details, refer to the mounting precautions in Precautions for Correct Use in individual product information. DIN Track (3) Set Distance The sensing distance may vary due to fluctuations in temperature and voltage. When mounting the Sensor, it is recommend that installation be based on the set distance. Mounting/Removing Using DIN Track (Example for E2CY) <Mounting> (1)Insert the front of the Sensor into the special Mounting Bracket (included) or DIN Track. (2)Press the rear of the Sensor into the special Mounting Bracket or DIN Track. Rear Front (1) (2) Mounting track (yellow) DIN Track (or Mounting Bracket) * When mounting the side of the Sensor using the special Mounting Bracket, first secure the Amplifier Unit to the special Mounting Bracket, and then mount the special Mounting Bracket with M3 screws and flat washers with a diameter of 6 mm maximum. Flat washers (6 dia. max.) http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. C-5 Proximity Sensors Technical Guide Wiring Considerations AND/OR Connections for Proximity Sensors Model Type of connection Connection Description Load Keep the number of connected Sensors (N) within the range of the following equation. VS - N x VR Operating load voltage + - AND (series connection) Vs + It is possible, however, that the indicators may not light correctly and error pulses (of approximately 1 ms) may be generated because the rated power supply voltage and current are not supplied to individual Proximity Sensors. Verify that this is not a problem before operation. - DC 2-Wire Load + Vs OR (parallel connection) N : Number of Sensors that can be connected VR: Residual output voltage of Proximity Sensor VS: Power voltage Keep the number of connected Sensors (N) within the range of the following equation. N x i Load reset current N: Number of Sensors that can be connected i: Leakage current of Proximity Sensor + Example: When an MY (24-VDC) Relay is used as the load, the maximum number of Sensors that can be connected is 4. <TL-NY, TL-MY, E2K-@MY@, TL-T@Y> The above Proximity Sensors cannot be used in a series connection. If needed, connect through relays. Load VS X2 X1 AND (series connection) Load X1 VS X2 Load <E2E-X@Y> For the above Proximity Sensors, the voltage VL that can be applied to the load when ON is VL = VS - (Output residual voltage x Number of Sensors), for both 100 VAC and 200 VAC. The load will not operate unless VL is higher than the load operating voltage. This must be verified before use. When using two or more Sensors in series with an AND circuit, the limit is three Sensors. (Be careful of the VS value in the diagram at left.) VL VS VS 100V AC 2-wire In general it is not possible to use two or more Proximity Sensors in parallel with an OR circuit. (B) OR (parallel connection) A parallel connection can be used if A and B will not be operated simultaneously and there is no need to hold the load. The leakage current, however, will be n times the value for each Sensor and reset failures will frequently occur. ("n" is the number of Proximity Sensors.) Load X1 X2 (A) Load (B) X1 X2 AC power supply voltage Vs (A) If A and B will be operated simultaneously and the load is held, a parallel connection is not possible. If A and B operate simultaneously and the load is held, the voltages of both A and B will fall to about 10 V when A turns ON, and the load current will flow through A causing random operation. When the sensing object approaches B, the voltage of both terminals of B is too low at 10 V and the switching element of B will not operate. When A turns OFF again, the voltages of both A and B rise to the power supply voltage and B is finally able to turn ON. During this period, there are times when A and B both turn OFF (approximately 10 ms) and the loads are momentarily restored. In cases where the load is to be held in this way, use a relay as shown in the diagram at left. Note: When AND/OR connections are used with Proximity Sensors, the effects of erroneous pulses or leakage current may prevent use. Verify that there are no problems before use. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. C-6 Proximity Sensors Technical Guide Model Type of connection Connection (A) AND (series connection) (B) + + Description Keep the number of connected Sensors (N) within the range of the following equation. iL + (N - 1) x i Upper limit of Proximity Sensor control output VS - N x VR Operating load voltage i OUT iL Load i Vs OUT Example: A maximum of two Sensors can be used when an MY (24-VDC) Relay is used for the load. Note: When an AND circuit is connected, the operation of Proximity Sensor B causes power to be supplied to Proximity Sensor A, and thus erroneous pulses (approximately 1 ms) may be generated in A when the power is turned ON. For this reason, take care when the load has a high response speed because malfunction may result. - DC 3-wire N : Number of Sensors that can be connected VR: Residual output voltage of Sensor VS: Power supply voltage i : Current consumption of Sensor iL: Load current + OUT OR (parallel connection) Load Vs + OUT For Sensors with a current output, a minimum of three OR connections is possible. Whether or not four or more connections is possible depends on the model. Note: When AND/OR connections are used with Proximity Sensors, the effects of erroneous pulses or leakage current may prevent use. Verify that there are no problems before use. Extending Cable Length The cable of a Built-in Amplifier Sensor can be extended to a maximum length of 200 m with each of the standard cables (excluding some models). For Separate Amplifier Sensors (E2C-EDA, E2C, E2J, E2CY), refer to the specific precautions for individual products. Example of Connection with S3D2 Sensor Controller DC 2-Wire Sensors Using the S3D2 Sensor Controller Operation can be reversed with the signal input switch on the S3D2. Bending the Cable Blue 0 V If you need to bend the cable, we recommend a bend radius that is at least 3 times the outer diameter of the cable (with the exception of coaxial and shielded cables). 7 8 9 10 11 12 Brown OUT Cable Tensile Strength In general, do not subject the cable to a tension greater than that indicated in the following table. Cable diameter Tensile strength Less than 4 mm 30 N max. 4 mm min. 50 N max. Note: Do not subject a shielded cable or coaxial cable to tension. S3D2 4 5 6 1 2 3 Connecting to a Relay Load Brown X 24 VDC Blue Separating High-voltage Lines Using Metal Conduits If a power line is to be located near the Proximity Sensor cable, use a separate metal conduit to prevent malfunction or damage. (Same for DC models.) Note: DC 2-Wire Sensors have a residual voltage of 3 V. Check the operating voltage of the relay before use. The residual voltage of the E2E-XD-M1J-T is 5 V. DC 3-Wire Sensors Operation can be reversed with the signal input switch on the S3D2. Blue 0 V Black OUT Brown +12 V S3D2 http://www.ia.omron.com/ 7 8 9 10 11 12 4 5 6 1 2 3 (c)Copyright OMRON Corporation 2008 All Rights Reserved. C-7 Proximity Sensors Technical Guide Operating Environment Water Resistance Do not use the Sensor in water, rain, or outdoors. Ambient Conditions Do not use the Sensor in the following environments. Doing so may cause malfunction or failure of the Sensor. 1. To maintain operational reliability and service life, use the Sensor only within the specified temperature range and do not use it outdoors. 2. The Sensor has a water resistant structure, however, attaching a cover to prevent direct contact with water will help improve reliability and prolong product life. 3. Avoid using the Sensor where there are chemical vapors, especially strong alkalis or acids (nitric acid, chromic acid, or hot concentrated sulfuric acid). Maintenance and inspection Periodic Inspection To ensure long-term stable operation of the Proximity Sensor, inspect for the following on a regular basis. Conduct these inspections also for control devices. 1. Shifting, loosening, or deformation of the sensing object and Proximity Sensor mounting 2. Loosening, bad contact, or wire breakage in the wiring and connections 3. Adherence or accumulation of metal powder 4. Abnormal operating temperature or ambient conditions 5. Abnormal indicator flashing (on setting indicator types) Disassembly and Repair Do not under any circumstances attempt to disassemble or repair the product. Quick Failure Check You can conveniently check for failures by connecting the E39-VA Handy Checker to check the operation of the Sensor. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Rights Reserved. C-8 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.