SERIES DC 3-wire Cylindrical Inductive Proximity Sensor GXL INDUCTIVE PROXIMITY SENSORS GX-N GX-U GL-18H/18HL GL-N12 Amplifier Built-in Type GL-8U GL-6 High Performance and Environmental Resistance at Low Price Robust in Tightening Long Sensing Range Cost Effective The tightening torque has been improved to approx. four times greater than that of conventional models because of its thick case. As the sensor can be securely tightened, it does not get loose due to vibration or shock. The GX-N series features 1.6 times longer sensing range than conventional models. Setting with enough margin is possible. It combines high reliability with cost effectiveness. Conventional GX-18M(B) model GX-N12ML(B) 8 mm GX-N18M(B) s 19.6Nm or less 4 times approx. 80Nm or less 1.6 GX-N GX-12ML(B) Conventional model 5 mm Visible Operation Indicator The operation indicator (orange) is easily observable from any direction since it is housed in the transparent tail section, which lights up brightly. GA-10/GH Amplifier-separated Type GX time Operation indicator (Orange) 668 APPLICATIONS Controlling depth of drilling Detecting workpiece in robot hand By detecting the dog, the sensor decides the depth of the drilled hole. It can reliably detect even aluminum pallets because of its long sensing range. It checks handling by the robot. GL-6 GXL Detecting traveling aluminum pallets INDUCTIVE PROXIMITY SENSORS GX-N Type Appearance (mm) Sensing range (Note) Model No. GL-8U ORDER GUIDE Output operation GX-N12MB Normally closed GX-N18M Normally open GX-N18MB Normally closed GX-N30M Normally open (0 to 8mm) GX-N30MB Normally closed 8mm GX-N12ML Normally open GX-N12MLB Normally closed GX-N18ML Normally open GX-N18MLB Normally closed GX-N30ML Normally open GX-N30MLB Normally closed (0 to 2.4mm) Shielded type Stable sensing range 7mm M18 41.5 (0 to 5.6mm) 10mm M30 44.5 M12 Non-shielded type 40.5 (0 to 6.4mm) 15mm M18 41.5 (0 to 12mm) 22mm M30 (0 to 17.6mm) 44.5 GX-U 40.5 GX-N Normally open GX GX-N12M Amplifier Built-in Type GL-N12 GL-18H/18HL Maximum operation distance 3mm M12 Amplifier-separated Type GA-10/GH Note: The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object. The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient temperature drift and/or supply voltage fluctuation. OPTIONS Protection cover Designation Protection cover Model No. Description MS-H12 For GX-N12M(B) MS-H18 For GX-N18M(B) MS-H30 For GX-N30M(B) It protects the sensing surface from welding sparks (spatter), etc. 669 INDUCTIVE PROXIMITY SENSORS GX-N SPECIFICATIONS Type Item Shielded type Max. operation distance (Note 1) GXL Non-shielded type Model No. GX-N12M GX-N12MB GX-N18M GX-N18MB GX-N30M GX-N30MB GX-N12ML GX-N12MLB GX-N18ML GX-N18MLB GX-N30ML GX-N30MLB Stable sensing range (Note 1) 3mm10% 7mm10% 10mm10% 8mm10% 15mm10% 22mm10% 0 to 2.4mm 0 to 5.6mm 0 to 8mm 0 to 6.4mm 0 to 12mm 0 to 17.6mm Iron sheet 1212t1mm Iron sheet 1818t1mm Iron sheet 3030t1mm Iron sheet 3030t1mm Iron sheet 5050t1mm Iron sheet 7070t1mm Standard sensing object Hysteresis 20% or less of operation distance 10 12 to 24V DC 15 % Ripple P-P 10% or less Supply voltage GL-6 Current consumption 10mA or less NPN open-collector transistor * Maximum sink current: 100mA * Applied voltage: 30V DC or less (between output and 0V) * Residual voltage: 1.5V or less (at 100mA sink current) 0.4V or less (at 16mA sink current) Output Normally open Normally closed Normally open Normally closed Normally open Normally closed Normally open Normally closed Normally open Normally closed Normally open Normally closed Short-circuit protection Incorporated Max. response frequency 450Hz 300Hz Protection IP67 (IEC), IP67g (JEM) 100Hz 100Hz 25 to70C, Storage:30 to80C Ambient temperature Ambient humidity 45 to 85% RH, Storage: 35 to 95% RH Noise immunity Power line: 240Vp, 0.5!s pulse width (with noise simulator) Voltage withstandability 1,000V AC for one min. between all supply terminals connected together and enclosure Insulation resistance 50M, or more, with 250V DC megger between all supply terminals connected together and enclosure Vibration resistance 10 to 55Hz frequency, 1.5mm amplitude in X, Y and Z directions for two hours each Shock resistance 1,000m/s2 acceleration (100G approx.) in X, Y and Z directions for three times each Over ambient temperature range25 to70C: within10% of sensing range at 20C Sensing range Temperature characteristics variation Voltage characteristics Within2% for10% fluctuation of the supply voltage Enclosure: Brass (Nickel plated), Sensing part: Nylon, Indicator part: Nylon 0.3mm2 3-core oil, heat and cold resistant cabtyre cable, 2m long Cable Extension up to total 100m is possible with 0.3mm2, or more, cable. Cable extension Weight (Note 2) 65g approx. 110g approx. Accessories GX-N 350Hz Orange LED (lights up when the output is ON) Material GX-U 300Hz Operation indicator Environmental resistance GL-18H/18HL GL-N12 Amplifier Built-in Type GL-8U Output operation 240g approx. 65g approx. 110g approx. 240g approx. Nut: 2 Nos., Toothed lock washer: 1 No. Notes: 1) The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object. The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient temperature drift and/or supply voltage fluctuation. Notes: 2) The given weight includes the weight of two nuts and one toothed lock washer. GX I/O CIRCUIT AND WIRING DIAGRAMS I/O circuit diagram Wiring diagram Brown (Brown)V Sensor circuit GA-10/GH Amplifier-separated Type Color code Load Black D Load (Black) Output (Note) Tr ZD 100mA max. 12 to 24V DC 10% 15 (Blue) 0V Internal circuit Users' circuit Note: If a capacitive load is directly connected to the output, malfunction may occur. Symbols ... D: Reverse supply polarity protection diode ZD: Surge absorption zener diode Tr : NPN output transistor 670 Blue 12 to 24V DC 10 15% SENSING CHARACTERISTICS (TYPICAL) GX-N12M GX-N12MB 2 0 4 2 0 2 Center Left Right Operating point #(mm) 4 Stainless steel (SUS304) 2 Brass Aluminum 0 10 20 30 Sensing object side length a (mm) GL-6 Standard sensing object Iron sheet 1212t1mm # L 4 GXL Correlation between sensing object size and sensing range As the sensing object size becomes smaller than Sensing object aamm the standard size (iron sheet 1212t1mm), t1mm 4 L the sensing range shortens as shown in the left figure. Iron Sensing range L (mm) Setting distance L (mm) Sensing field 40 5 0 20 10 0 10 Center Left Right Operating point #(mm) 20 Amplifier Built-in Type GL-N12 GL-18H/18HL 10 Correlation between sensing object size and sensing range As the sensing object size becomes smaller than Sensing object aamm the standard size (iron sheet 1818t1mm), t1mm 10 L the sensing range shortens as shown in the left figure. Sensing range L (mm) Setting distance L (mm) Standard sensing object Iron sheet 1818t1mm # L GL-8U GX-N18M GX-N18MB Sensing field Iron Stainless steel (SUS304) 5 Brass Aluminum 0 10 20 30 Sensing object side length a (mm) 40 GX-N30M GX-N30MB 10 5 20 10 0 10 Center Left Right # Operating point (mm) 20 GX-U (SUS304) 5 Brass L 0 Sensing object aamm Aluminum t1mm 20 40 60 Sensing object side length a (mm) 80 GX 0 Correlation between sensing object size and sensing range As the sensing object size becomes smaller than the standard size (iron sheet 3030t1mm), Iron 10 the sensing range shortens as shown in the left figure. Stainless steel GX-N Standard sensing object Iron sheet 3030t1mm # L Sensing range L (mm) Setting distance L (mm) Sensing field GX-N12ML GX-N12MLB Standard sensing object Iron sheet 3030t1mm # L 5 0 20 10 0 10 Center Left Right Operating point #(mm) 20 Amplifier-separated Type GA-10/GH Correlation between sensing object size and sensing range As the sensing object size becomes smaller than Sensing object aamm t1mm the standard size (iron sheet 3030t1mm), L 10 the sensing range shortens as shown in the left Iron figure. Sensing range L (mm) Setting distance L (mm) Sensing field 10 INDUCTIVE PROXIMITY SENSORS GX-N Stainless steel (SUS304) 5 Brass Aluminum 0 20 40 60 Sensing object side length a (mm) 80 671 SENSING CHARACTERISTICS (TYPICAL) GX-N18ML GX-N18MLB Setting distance L (mm) Standard sensing object Iron sheet 5050t1mm # L 20 10 0 20 10 0 10 Center Left Right Operating point #(mm) Correlation between sensing object size and sensing range As the sensing object size becomes smaller than Sensing object aamm t1mm the standard size (iron sheet 5050t1mm), L 20 the sensing range shortens as shown in the left figure. Iron 20 Stainless steel (SUS304) 10 Brass Aluminum 20 40 60 Sensing object side length a (mm) 0 80 GX-N30ML GX-N30MLB Correlation between sensing object size and sensing range As the sensing object size becomes smaller than Iron the standard size (iron sheet 7070t1mm), 20 the sensing range shortens as shown in the left Stainless steel figure. (SUS304) 20 Sensing range L (mm) Setting distance L (mm) Sensing field 10 Standard sensing object Iron sheet 7070t1mm # L 0 20 GA-10/GH Amplifier-separated Type GX GX-N GX-U GL-18H/18HL GL-N12 Amplifier Built-in Type GL-8U GL-6 GXL Sensing field Sensing range L (mm) INDUCTIVE PROXIMITY SENSORS GX-N 672 10 0 10 Center Left Right Operating point #(mm) 20 Brass 10 L 0 Sensing object aamm t1mm Aluminum 20 40 60 Sensing object side length a (mm) 80 This product is not a safety sensor. Its use is not intended or designed to protect life and prevent body injury or property damage from dangerous parts of machinery. It is a normal object detection sensor. Face to face mounting Mounting * The tightening torque should be as given below. Non-shielded type Attached toothed lock washer A E (mm) F (mm) Parallel mounting GX-N12M(B) 25 15 GX-N18M(B) 50 35 GX-N30M(B) 90 55 GX-N12ML(B) 120 70 GX-N18ML(B) 180 125 GX-N30ML(B) 290 190 F Mounting plate 13.5 or more 20Nm Sensing range * The sensing range is specified for the standard sensing object. With a non-ferrous metal, the sensing range is obtained by multiplying with the correction coefficient specified below. GX-N12M(B) 4 to 18 45Nm 18 or more 80Nm 5 to 21 80Nm 21 or more 180Nm GX-N12ML(B) 15 or more 20Nm GX-N18ML(B) 25 or more 80Nm GX-N30ML(B) 30 or more 180Nm GX-N18M(B) Correction coefficient Model No. GX-N30M(B) GX-N12M(B) GX-N18M(B) GX-N30M(B) GX-N12ML(B) GX-N18ML(B) GX-N30ML(B) Metal Iron Note: Mount such that the nuts do not protrude from the threaded portion. Distance from surrounding metal * As metal around the sensor may affect the sensing performance, pay attention to the following points. Influence of surrounding metal * The surrounding metal will affect the sensing performance. Keep the minimum distance specified in the table below. Background metal Model No. B 1 1 1 0.52 approx. 0.50 approx. 0.45 approx. 0.44 approx. 0.46 approx. 0.44 approx. Aluminum 0.51 approx. 0.48 approx. 0.44 approx. 0.43 approx. 0.44 approx. 0.43 approx. Note: The sensing range also changes if the sensing object is plated. Protection cover (Optional) * It protects the sensing surface from welding sparks (spatter), etc. Mounting method Protection cover Sensor Model No. Applicable model No. GX-N12M(B) 8 MS-H12 GX-N12M(B) GX-N18M(B) 20 MS-H18 GX-N18M(B) GX-N30M(B) 40 MS-H30 GX-N30M(B) GX-N12ML(B) 22 GX-N18ML(B) 45 GX-N30ML(B) 75 Material: Fluorine resin Note: Mount the protection cover so that there is no gap between it and the sensing surface. Embedding of the sensor in metal Model No. GX-N12ML(B) D 1 Brass B (mm) * Sensing range may decrease if the sensor is completely embedded in metal. Especially for the non-shielded type, keep the minimum distance specified in the table below. C 1 1 Stainless steel 0.77 approx. 0.73 approx. 0.70 approx. 0.66 approx. 0.68 approx. 0.65 approx. (SUS304) GL-8U 10Nm Amplifier Built-in Type GL-N12 GL-18H/18HL Tightening torque 3.5 to 13.5 GX-U Dimension A (mm) Others * Do not use during the initial transient time (50ms) after the power supply is switched on. * When the sensor is mounted on a moving base, stress should not be applied to the sensor cable joint. Amplifier-separated Type GA-10/GH Model No. Mounting plate GX-N Attached toothed lock washer A Model No. E C (mm) D (mm) "50 15 GX-N18ML(B) "75 25 GX-N30ML(B) "105 30 GX Shielded type Mutual interference * When two or more sensors are installed in parallel or face to face, keep the minimum separation distance specified below to avoid mutual interference. INDUCTIVE PROXIMITY SENSORS Refer to P.836l for general precautions. GXL PRECAUTIONS FOR PROPER USE GL-6 GX-N Metal Note: With the non-shielded type, the sensing range may vary depending on the position of the nuts. Stress Stress 673 DIMENSIONS (Unit: mm) GX-N12M GX-N12MB GXL INDUCTIVE PROXIMITY SENSORS GX-N GX-N12ML GX-N12MLB Sensor 35.5 17 5 1.3 2 M121 17 "5.5 GL-6 GL-8U GX-N18ML GX-N18MLB 2 "3.6 cable 2m long Toothed lock washer (Internally toothed) Operation indicator (Orange) 3.5 Operation indicator (Orange) Sensor 5 "10.4 "21 1.3 Sensor 36.5 24 M181 "29 GX-N30M GX-N30MB 36 39.5 5 4 GX-N30ML GX-N30MLB Sensor 2 1.3 "10.4 "3.6 cable 2m long "29 "3.6 cable 2m long Operation indicator Toothed lock washer (Orange) (Internally toothed) 4 GX-N MS-H12 MS-H18 MS-H30 36 0 A Model No. 0.70.2 BC Material: Fluorine resin 674 2 1.3 M301.5 "10.4 "43 Operation indicator (Orange) Symbol A 5 39.5 "26.6 Protection cover (Optional) Thickness of front face Operation indicator (Orange) "5.5 "3.6 cable 2m long Toothed lock washer (Internally toothed) 5 Toothed lock washer (Internally toothed) Sensor 12 "10.4 "43 1.3 "15.2 "5.5 GX 2 "5.5 "10.4 M301.5 GA-10/GH Amplifier-separated Type 5 M181 10 "5.5 GX-U GL-18H/18HL GL-N12 Amplifier Built-in Type Toothed lock washer (Internally toothed) 36.5 1.3 2 "10.2 "3.6 cable 2m long 24 5 M121 "5.5 "21 GX-N18M GX-N18MB 35.5 7 "10.4 3.5 Sensor B C Applicable model No. MS-H12 5 "11.5 "14 GX-N12M(B) MS-H18 6 "17.5 "20 GX-N18M(B) MS-H30 8 "29.4 "33 GX-N30M(B) 5 "3.6 cable 2m long Toothed lock washer (Internally toothed) Operation indicator (Orange)