F502-EN2-04.book Seite 69 Dienstag, 26. Juli 2005 5:48 17 Long Distance Square Inductive Proximity Sensor E2Q2 Square Proximity Sensor  Terminal Housing  Active face direction changeable  Easy to install and same mounting dimensions as a standard style electro-mechanical limit switch  Integrated short circuit and reverse polarity protec- tion  Robust body with stainless steel screws Ordering Information DC type Output Sensing Active Connection distance face NO NO + NC NPN E2Q2-N20E1-H E2Q2-N20E3-# 20 mm shielded PNP E2Q2-N20F1-H E2Q2-N20F3-# NPN E2Q2-N30ME3-# 30 mm Terminals Changeable non-shielded PNP E2Q2-N30MF3-# NPN E2Q2-N40ME3-# 40 mm non-shielded PNP E2Q2-N40MF3-# # = H: terminal conduit M20x1,5 AC type U: terminal conduit 1/2“ NPT Output Sensing Active Connection distance face NO NO or NC 15 mm AC E2Q2-N15Y4-# shielded Changeable Terminals 30 mm AC E2Q2-N30MY4-# shielded # = H: terminal conduit M20x1,5 Weld-Field Immune DC type (100mT) U: terminal conduit 1/2“ NPT Output Sensing Active Connection distance face NO NO + NC 15 mm Terminal Changeable PNP E2Q2-N15F1-51 shielded conduit ½“ NPT Weld-Field Immune AC type (100mT) Sensing Active Output Connection distance face NO NO or NC 15 mm Terminal Changeable AC E2Q2-N15Y4-51 shielded conduit ½“ NPT E2Q2 D-69 E2Q2 F502-EN2-04.book Seite 70 Dienstag, 26. Juli 2005 5:48 17 Rating/performance DC type shielded non-shielded Model E2Q2-N15F1-51 E2Q2-N20##-# E2Q2-N30##-# E2Q2-N40##-# Item weld-immune type Sensing distance Sn 15 mm ± 10% 20 mm ± 10% 30 mm ± 10% 40 mm ± 10% Standard target size, L x W x H, Fe 37 45 x 45 x 1 mm 60 x 60 x 1 mm 90 x 90 x 1 mm 120 x 120 x 1 mm Setting distance 0 to 12,15 mm 0 to 16,2 mm 0 to 24,3 mm 0 to 32,4 mm 10 Hz (weld-field im- Switching frequency 150 Hz 100 Hz 30 Hz mune type) Sensing object Ferrous metals Differential travel 15% max. of sensing distance Sn Operating voltage 10 to 30 VDC 10 to 60 VDC Current consumption 20 mA max. 10 mA max. 20 mA max. Control output Type E2Q2-N###E1-##:NPN - NO E2Q2-N###E3-##: NPN - NO + NC E2Q2-N###F1-##:PNP - NO E2Q2-N###F3-##: PNP - NO + NC Load 200 mA max. On-stage voltage drop 3 VDC max. (at 200 mA load current) Circuit protection Reverse polarity, output short circuit Alternating magnetic field 100 mT --- Indicator Operating indicator (yellow LED), operating voltage (green LED) Ambient temperature Operating: -25° to 70°C Ambient humidity 35 to 95% RH Influence of temperature ± 10% max. of Sn at 23° in temperature range of -25° to 70°C Dielectric strength 1.500 VAC, 50/60 Hz for 1 min. between current carry parts and case Electromagnetic compatibility EMC EN 60947-5-2 Vibration resistance 10 to 55 Hz, 1 mm amplitude according IEC 60068-2-6 Shock resistance Approx. 30 G for 11 ms according to IEC 60068-2-27 Protection degree IEC 60529 IP 67 Connection Terminals Up to 2,5 mm² Material Case PBT Terminal base Al PBT (...-H type) Sensing face PBT Approvals CERTIFIED LISTED D-70 Inductive Sensors F502-EN2-04.book Seite 71 Dienstag, 26. Juli 2005 5:48 17 AC type shielded non-shielded Model E2Q2-N15Y4-51 E2Q2-N15##-# E2Q2-N30##-# Item weld-immune type Sensing distance Sn 15 mm ± 10% 30 mm ± 10% Standard target size, L x W x H, Fe 37 45 x 45 x 1 mm 90 x 90 x 1 mm Setting distance 0 to 12,15 mm 0 to 24,3 mm Switching frequency 20 Hz Sensing object Ferrous metals Differential travel 15% max. of sensing distance Sn Operating voltage 20 to 253 VAC Off-state current 2,5 mA max. 1,9 mA max. Control output Type AC - NO or NC 500 mA max. Load 10 mA min. 8 mA min. On-stage voltage drop 12 VAC max. (at 500 mA load current) Circuit protection --- Alternating magnetic field 100 mT --- Indicator Operating indicator (yellow LED), operating voltage (green LED) Ambient temperature Operating: -25° to 70°C Ambient humidity 35 to 95% RH Influence of temperature ± 10% max. of Sn at 23° in temperature range of -25° to 70°C 1.500 VAC / 2500 VAC (E2Q2-...-H), 50/60 Hz for 1 min. between current carry parts and Dielectric strength case Electromagnetic compatibility EMC EN 60947-5-2 Vibration resistance 10 to 55 Hz, 1 mm amplitude according IEC 60068-2-6 Shock resistance Approx. 30 G for 11 ms according to IEC 60068-2-27 Protection degree IEC 60529 IP 67 Connection Terminals Up to 2,5 mm² Material Case PBT Terminal base Al PBT (...-H type) Sensing face PBT Approvals CERTIFIED LISTED E2Q2 D-71 E2Q2 Rated Rated Rated Rated Rated sensing sensing sensing sensing sensing distance distance distance distance distance Proximity Sensor Proximity Sensor Proximity Sensor Proximity Sensor Proximity Sensor F502-EN2-04.book Seite 72 Dienstag, 26. Juli 2005 5:48 17 Output Circuit Diagram NPN output Operation Model Timing chart Output circuit mode Non-sensing zone Sensing zone Brown +V Sensing object 4.7kΩ (%) 100 0 Load Operation E2Q2-N20E1-H NO Indicator Proximity (yellow) Black Sensor main ON circuits Yellow indicator OFF Blue ON 0 V Control output OFF Non-sensing zone Sensing zone Brown +V Sensing object 4.7kΩ 4.7kΩ (%) 100 0 Load Operation E2Q2-N20E3-# Indicator (yellow) Black E2Q2-N30ME3-# NO + NC Proximity Load E2Q2-N40ME3-# ON NO Sensor Yellow indicator main OFF White circuits ON NC Control output NO OFF Blue ON 0 V Control output NC OFF PNP output Operation Model Timing chart Output circuit mode Non-sensing zone Sensing zone Brown +V Sensing object Proximity Black 100 0 Sensor (%) main Operation E2Q2-N20F1-H circuits Indicator NO E2Q2-N15F1-51 (yellow) Load 4.7kΩ ON Yellow indicator OFF Blue ON 0 V Control output OFF Non-sensing zone Sensing zone Brown +V Sensing object White 100 0 (%) Proximity NC Sensor E2Q2-N20F3-# main Black circuits E2Q2-N30MF3-# Load NO + NC Operation NO E2Q2-N40ME3-# Indicator ON Yellow indicator (yellow) OFF 4.7kΩ 4.7kΩ Load ON Control output NO OFF Blue ON 0 V Control output NC OFF AC output Operation Model Timing chart Output circuit mode Non-sensing zone Sensing zone Brown Sensing object Blue Proximity (%) 100 0 Sensor main Brown circuits E2Q2-N15Y4-51 NO or NC White ON Yellow indicator OFF Operation ON Indicator Control output NO OFF (yellow) ON Control output NC Note: Only one load allowed! OFF D-72 Inductive Sensors Load Load F502-EN2-04.book Seite 73 Dienstag, 26. Juli 2005 5:48 17 Dimensions (Unit: mm) E2Q2-...-H type E2Q2-...-U and -51 type M20x1,5 ½“ NPT E2Q2 D-73 E2Q2 F502-EN2-04.book Seite 74 Dienstag, 26. Juli 2005 5:48 17 Connection DC type Connection type Method Description The Sensors connected together must satisfy the following conditions: iL + (N-1) x i ≤ Upper-limit of control output of each Sensor VS - N x VR ≥ Load operating voltage N = No. of Sensors AND VR = Residual voltage of each Sensor (serial connection) VS = Supply voltage i = Current consumption of the Sensor iL = Load current If the MY Relay, which operate at 24 VDC, is used as a load for example, a maximum of two Proximity Sensors can be connected to the load. OR A minimum of three Sensors with current outputs can be connected in (parallel connec- parallel. The number of Sensors connected in parallel varies with the tion) Proximity Sensor model. AC type Connection type Method Description If 100 or 200 VAC is imposed on the Proximity Sensors, VL (i.e., the volt- age imposed on the load) will be obtained from the following. VL =VS - (residual voltage x no. of Proximity Sensors) (V) Therefore, if VL is lower than the load operating voltage, the load will not operate. A maximum of three Proximity Sensors can be connected in series pro- vided that the supply voltage is 100 V minimum. AND (serial connection) In principle, more than two Proximity Sensors cannot be connected in parallel. Provided that Proximity Sensor A does not operate with Proximity Sen- sor B simultaneously and there is no need to keep the load operating continuously, the Proximity Sensors can be connected in parallel. In this case, however, due to the total leakage current of the Proximity Sensors, the load may not reset properly. It is not possible to keep the load operating continuously with Proximity Sensors A and B in simultaneous operation to sense sensing objects due OR to the following reason. (parallel connec- When Proximity Sensor A is ON, the voltage imposed on Proximity Sen- tion) sor A will drop to approximately 10 V and the load current flows into Prox- imity Sensor A, and when one of the sensing objects is close to Proximity Sensor B, Proximity Sensor B will not operate because the voltage im- posed on Proximity Sensor B is 10 V, which is too low. When Proximity Sensor A is OFF, the voltage imposed on Proximity Sen- sor B will reach the supply voltage and Proximity Sensor B will be ON. Then, Proximity Sensor A as well as Proximity Sensor B will be OFF for approximately 10 ms, which resets the load for an instant. To prevent the instantaneous resetting of the load, use a relay as shown on the left. D-74 Inductive Sensors F502-EN2-04.book Seite 75 Dienstag, 26. Juli 2005 5:48 17 Precautions Correct Use ! Caution Power supply Design Do not impose an excessive voltage on the E2Q2, otherwise Effects of Surrounding Metal Provide a minimum distance between the Sensor and the sur- it may explode or burn. rounding metal as shown in the table below. Do not connect an AC power supply to any DC model. If AC power (100 VAC or more) is supplied to the sensor, it may ex- plode or burn. B A C Effects of Surrounding Metal (Unit: mm) Model Length A B C E2Q2-N15##-## 45 0 0 E2Q2-N20##-# Do not connect the AC types without load to the power supply. E2Q2-N30M##-# 90 250 30 The sensor will be damaged. E2Q2-N40M##-# 120 300 40 Mutual Interference If more than one Sensor is located in parallel, ensure to main- tain enough space between adjacent Sensors to suppress mutual interference as provided in the following diagram. Be sure to abide by the following precautions for the safe op- Side-by-side A eration of the Sensor. Wiring Power Supply Voltage and Output Load Power Supply Volt- Mutual Interference (Unit: mm) age Model Length A Make sure that the power supply to the Sensor is within the E2Q2-N15##-## 40 rated voltage range. If a voltage exceeding the rated voltage E2Q2-N20##-# E2Q2-N30M##-# 120 range is supplied to the Sensor, it may explode or burn. E2Q2-N40M##-# 150 Load Short-circuiting Do not short-circuit the load, otherwise the Sensor may be Power Reset Time The Sensor is ready to operate within 300 ms after the Sensor damaged. is turned ON. If the load and Sensor are connected to inde- pendent power supplies respectively, be sure to turn ON the Connection without Load Sensor before supplying power to the load. Do not connect the power supply to the Sensor with no load connected, otherwise the internal elements may explode or Power OFF burn. The Proximity Sensor may output a pulse signal when it is turned OFF. Therefore, it is recommended that the load be Operating Environment turned OFF before turning OFF the Proximity Sensor. Do not use the Sensor in locations with explosive or flamma- ble gas. Power Supply Transformer When using a DC power supply, make sure that the DC power supply has an insulated transformer. Do not use a DC power supply with an auto-transformer. Sensing Object The sensing distance of the Proximity Sensor vary with the metal coating on sensing objects. E2Q2 D-75 E2Q2 F502-EN2-04.book Seite 76 Dienstag, 26. Juli 2005 5:48 17 Wiring Environment High-tension cables Water Resistivity Wiring through Metal Conduit: Do not use the Proximity Sensor underwater, outdoors or in If there is power or high-tension line near the cable of the the rain. Proximity Sensor, wire the cable through an independent met- al conduit to prevent against Proximity Sensor damage or Operating Environment Be sure to use the Proximity Sensor within its operating ambi- malfunction. ent temperature range and do not use the Proximity Sensor outdoors so that its reliability and life expectancy can be main- Mounting tained. Although the Proximity Sensor is water resistive, a Mounting the Sensor The Proximity Sensor must be subjected to excessive shock cover to protect the Proximity Sensor from water or water-sol- with a hammer when it is installed, otherwise the Proximity uble machining oil is recommended so that its reliability and Sensor may be damaged or lose its water-resistivity. life expectancy can be maintained. Maintenance and Inspection Do not use the Proximity Sensor in an environment with Periodically perform the following checks to ensure stable op- chemical gas (e.g., strong alkaline or acid gasses including ni- eration of the Proximity Sensor over a long period of time. tric, chromic and concentrated sulfuric acid gases).  Check for mounting position, dislocation, looseness or dis- tortion of the Proximity Sensor and sensing objects. Inrush Current  Check for loose wiring and connections, improper contacts A load that has a large inrush current (e.g., a lamp or motor) will damage the Proximity Sensor, in this case connect the and line breakage.  Check for attachment or accumulation of metal powder or load to the Proximity Sensor through a Relay dust.  Check for abnormal temperature conditions and other envi- ronmental conditions. Never disassemble or repair the Sensor. ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. Cat. No. D01E-EN-02 In the interest of product improvement, specifications are subject to change without notice. D-76 Inductive Sensors