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r 2 short barrel inductive prox e2e2-wireac short barrel 2-wire ac prox sensors meet ip67 h thick nickel-plated brass barrel has wrench flats for easy installation h solid potted internal circuitry withstands shocks and water washdown to ip67 h high visibility indicator h choose prewired models with or without short-circuit protection and connector models ordering information j prewired sensors without short-circuit protection when ordering, please note: omron has added the suffix ?-n? to e2e part numbers for ordering purposes only; the suffix ?-n? will not appear on the product. type size sensing distance part number y p g no nc shielded m8 1.5 mm e2e-x1r5y1-n e2e-x1r5y2-n m12 2mm e2e-x2y1-us-n e2e-x2y2-us-n m18 5mm e2e-x5y1-us-n* e2e-x5y2-us-n m30 10 mm e2e-x10y1-us-n* e2e-x10y2-us-n unshielded m8 2mm e2e-x2my1-us-n* e2e-x2my2-us-n m12 5mm e2e-x5my1-us-n* e2e-x5my2-us-n* m18 10 mm e2e-x10my1-us-n* e2e-x10my2-us-n* m30 18 mm e2e-x18my1-us-n* e2e-x18my2-us-n *note: a different oscillating frequency is available to prevent mutual interference. add a ?5? to the part number (e.g., e2e-x5y15-us-n).
e2e2-wireac e2e2-wireac 3 j prewired sensors with short-circuit protection type size sensing distance part number y p g no nc shielded m18 5mm E2E-X5Y1-53-US e2e-x5y2-53-us m30 10 mm e2e-x10y1-53-us e2e-x10y2-53-us unshielded m18 10 mm e2e-x10my1-53-us e2e-x10my2-53-us m30 18 mm e2e-x18my1-53-us e2e-x18my2-53-us j sensors with built-in connectors connector type size sensing distance part number y p g no nc 4-pin connector shielded m12 2mm e2e-x2y1-m1-n e2e-x2y2-m1-n (m12) seenote1. m18 5mm e2e-x5y1-m1-n e2e-x5y2-m1-n m30 10 mm e2e-x10y1-m1-n e2e-x10y2-m1-n unshielded m12 5mm e2e-x5my1-m1-n e2e-x5my2-m1-n m18 10 mm e2e-x10my1-m1-n e2e-x10my2-m1-n m30 18 mm e2e-x18my1-m1-n e2e-x18my2-m1-n 3-pin connector ( m 1 2 ) shielded m12 2mm e2e-x2y1-m4 e2e-x2y2-m4 (m12) seenote2. m18 5mm e2e-x5y1-m4 e2e-x5y2-m4 m30 10 mm e2e-x10y1-m4 e2e-x10y2-m4 unshielded m12 5mm e2e-x5my1-m4 e2e-x5my2-m4 m18 10 mm e2e-x10my1-m4 e2e-x10my2-m4 m30 18 mm e2e-x18my1-m4 e2e-x18my2-m4 note: 1. use omron?s y96e-44 j a j connector cordsets. 2. use omron?s y96e-33 j a j connector cordsets. j accessories description part number mounting brackets fits m8 size sensors fits m12 size sensors fits m18 size sensors fits m30 size sensors y92e-b8 y92e-b12 y92e-b18 y92e-b30 silicone rubber covers for shielded sensors fits m12 size sensors fits m18 size sensors fits m30 size sensors y92e-e12-2 y92e-e18-2 y92e-e30-2 connector cordsets see y96e connector cordsets data sheet for details
e2e2-wireac e2e2-wireac 4 j replacement parts description part number mounting hardware including one pair of metal nuts and one washer fits m8 size sensors fits m12 size sensors fits m18 size sensors fits m30 size sensors m8-mhws m12-mhws m18-mhws m30-mhws specifications j sensors without short-circuit protection (e2e-x j j j j y j j j j ) part number e2e-x1r5y j -n e2e-x2my j -n e2e-x2y j -us-n e2e-x5my j -us-n e2e-x5y j -us-n e2e-x10my j -us-n e2e-x10y j -us-n e2e-x18my j -us-n size m8 m12 m18 m30 type shielded unshielded shielded unshielded shielded unshielded shielded unshielded sensing distance 1.5 mm (0.06 in) 10% 2mm (0.08 in) 10% 2mm (0.08 in) 10% 5mm (0.20 in) 10% 5mm (0.20 in) 10% 10 mm (0.39 in) 10% 10 mm (0.39 in) 10% 18 mm (0.71 in) 10% supply voltage (operating voltage range) (see note 1) 24 to 240 vac, 50/60 hz (20 to 264 vac) current consumption 1.7 ma max. sensing object magnetic metals (refer to engineering data for non-magnetic metals) setting distance 0to1.2mm (0 to 0.05 in) 0to1.6mm (0 to 0.06 in) 0to1.6 mm (0 to 0.06 in) 0to4.0 mm (0 to 0.16 in) 0to4.0 mm (0 to 0.16 in) 0to8.0 mm (0 to 0.31 in) 0to8.0 mm (0 to 0.31 in) 0to14.0 mm (0 to 0.55 in) standard object (mild steel) 8x8x1mm (0.31 x 0.31 x 0.04 in) 12 x 12 x 1 mm (0.47 x 0.47 x 0.04 in) 12 x 12 x 1mm (0.47 x 0.47 x 0.04 in) 15 x 15 x 1mm (0.59 x 0.59 x 0.04 in) 18 x 18 x 1mm (0.71 x 0.71 x 0.04 in) 30 x 30 x 1mm (1.18 x 1.18 x 0.04 in) 30 x 30 x 1 mm (1.18 x1.18x 0.04 in) 54 x 54 x 1 mm (2.13 x2.13x 0.04 in) differential travel 10% max. of sensing distance response frequency 25 hz operation (with sensing object approaching) y1 models: load on y2 models: load off control output (switching capacity) 5 to 100 ma max. 5 to 200 ma max. 5 to 300 ma max. indicator operation indicator (red led) ambient temperature (see note 2) operating: --25 cto70 c (--13 f to 158 f) with no icing operating: --40 cto85 c(--40 f to 185 f) with no icing ambient humidity operating: 35% to 95% temperature influence 15% max. of sensing distance at 23 c in temperature range of --40 cto85 c(--40 f to 185 f) 10% max. of sensing distance at 23 c in temperature range of --25 cto70 c(--13 f to 158 f) voltage influence 1% max. of sensing distance in rated voltage range 15% residual voltage refer to engineering data insulation resistance 50 m ? min. (at 500 vdc) between current carry parts and case dielectric strength 4,000 vac for 1 min between current carry parts and case (2,000 vac for m8 types) vibration resistance 10 to 55 hz, 1.5-mm double amplitude for 2 hrs each in x, y, and z directions shock resistance 500 m/s 2 (approx. 50g) for 10 times each in x, y, and z axes 1,000 m/s 2 (approx. 50g) for 10 times each in x, y, and z axes 500 m/s 2 (approx. 50g) for e2e-x5m enclosure iec ip67 rating nema 1, 4, 6, 12, 13 note: 1. when using an m18 or m30 size e2e at an ambient temperature between 70 c and 85 c (158 f and 185 f), make sure that the e2e has a control output of 200 ma maximum. 2. when supplying 24 vac to any of the above models, make sure that the operating ambient temperature range is --25 cto85 c (--13 f to 185 f). (this table continues on the next page.)
e2e2-wireac e2e2-wireac 5 specifications table -- continued from previous page part number e2e-x1r5y j -n e2e-x2my j -n e2e-x2y j - us-n e2e-x5my j -us-n e2e-x5y j - us-n e2e-x10my j -us-n e2e-x10y j -us-n e2e-x18my j -us-n approvals ul -- recognized, file number e76675 p p csa -- certified, file number lr45951 weight prewired approx. 45 g approx. 120 g approx. 160 g approx. 270 g g connector --- approx. 25 g approx. 45 g approx. 125 g approx. 124 g material body stainless steel brass sensing face pbt j sensors with short-circuit protection (e2e-x j j j j y j j j j -53-us) part number e2e-x5y j -53-us e2e-x10my j -53-us e2e-x10y j -53-us e2e-x18my j -53-us body size m18 m30 y type shielded unshielded shielded unshielded supply voltage 90 to 140 vac, 50/60 hz effective maximum detecting distance (with standard target) 5 mm (0.20 in) 10% 10 mm (0.40 in) 10% 18 mm (0.71 in) 10% usable detecting range (with standard target) 0to4mm (0 to 0.16 in) 0to8mm(0to0.31in) 0to14mm (0 to 0.55 in) standard target size (mildsteel,lxwxh) 18x18x1mm (0.71 x 0.71 x 0.04 in) 30x30x1mm (1.18 x 1.18 x 0.04 in) 54x54x1mm (2.13 x 2.13 x 0.04 in) differential travel 10% max. of effective detecting distance control output ac solid type scr-no (e2e-x jjj y1- jj - jj ) scr-nc (e2e-x jjj y2- jj - jj ) p state max. load 300 ma min. load 5ma max. offstate leakage current 1.5 ma (see ?leakage current characteristics? graph in engineering data. ) max. on-state voltage drop (see ?leakage current characteristics? graph in engineering data. ) response frequency 25 hz circuit output short-circuit provided protection weld field immunity not provided rfi immunity not provided indicators target present (red led) materials housing nickel-plated brass sensing face plastic cable sheath plastic mounting two lock washers and m18 nuts included. bracket y92e-b18 optional. two lock washers and m30 nuts included. bracket y92e-b30 optional. connections prewired 2-conductor cable, 2 m (6.56 ft) length weight with cable approx. 160 g (5.6 oz.) approx. 270 g (9.5 oz.) enclosure ul 1 ratings nema 1, 4, 6, 12, 13 iec 144 ip67 approvals ul recognized, file number e76675 p p csa certified, file number lr45951 ambient operating temperature -25 to 70 c (-13 to 158 f) vibration 10 to 55 hz, 1.5 mm (0.06 in) double amplitude shock approx. 100 g?s
e2e2-wireac e2e2-wireac 6 operation j output circuits sensors without short-circuit protection (e2e-x j y j ) e2e-x j y j -n ac 2-wire models main circuit load brown 1 (or 3) blue 2 (or 4) sensing object control output yes no lit not lit red indicator on off ac 2-wire models e2e-x j y j -n sensors with short-circuit protection (e2e-x j y j -us-53) prox. switch main circuit white (brown) load black (blue) note: iec colors are shown in parenthesis with short-circuit protection e2e-x j y1-53 no load target output output operation indicator shorted normal present absent on off on off shorted normal present absent on off on off e2e-x j y2-53 nc short-circuit indication the led dims when the load is shorted and the load output immediately turns off and remains off until the short-circuit protection is reset. resetting short-circuit protection before the short-circuit protection can be reset, the short must be repaired. we recommend turning the power off before repairing the short. if this approach is taken, no further action is required to reset the short-circuit protection. if the short must be repaired with power on, the following resetting steps are required: for no sensors, the target must be removed to reset the short-circuit protection. for nc sensors, the target must be presented then removed to reset the short-circuit protection.
e2e2-wireac e2e2-wireac 7 engineering data j operating range (typical) shielded models e2e-x j y j -n unshielded models e2e-x j my j -n y (mm) sensing distance x (mm) e2e j -x2 j e2e j -x1r5 j e2e j -- x 1 0 j e2e j -- x 5 j sensing distance x (mm) y (mm) sensing distance x (mm) sensing distance x (mm) e2e j -x5m j e2e j -x2m j e2e j -x10m j e2e j -x18m j y (mm) y (mm) j leakage current (typical) e2e-x j y j -n leakage current (ma) supply voltage (v) ac power supply proximity sensor (when off) protective resistance e2e-x j y j -53-us leakage current (ma) supply voltage (v)
e2e2-wireac e2e2-wireac 8 j residual output voltage (typical) e2e-x j y j -n load current (ma) residual load voltage (v) load current (ma) load current (ma) residual output voltage residual load volt- age proximity sensor 100 vac 24 vac residual output voltage residual load volt- age proximity sensor residual output voltage residual load volt- age proximity sensor 200 vac residual load voltage (v) residual load voltage (v) j sensing distance vs. sensing object (typical) e2e-x1r5y j -n sensing distance (mm) side length of target d (mm) brass aluminum mild steel t=1mm stainless steel (sus304) e2e-x2y j -n e2e-x5y j -n sensing distance (mm) sensing distance (mm) stainless steel (sus304) brass mild steel stainless steel (sus304) brass aluminum t=1mm t=1mm mild steel aluminum side length of target d (mm) side length of target d (mm) e2e-x2my j -n e2e-x5my j -n sensing distance (mm) side length of target d (mm) sensing distance (mm) mild steel stainless steel (sus304) brass aluminum t=1mm t=1mm brass copper stainless steel (sus304) alumi- num mild steel e2e-x10y j -n sensing distance (mm) mild steel stainless steel (sus304) brass aluminum t=1mm side length of target d (mm) side length of target d (mm)
e2e2-wireac e2e2-wireac 9 j sensing distance vs. sensing object (typical) -- continued e2e-x10my-n sensing distance (mm) side length of target d (mm) mild steel stainless steel (sus304) brass aluminum t=1mm e2e-x18my j -n sensing distance (mm) side length of target d (mm) mild steel stainless steel (sus304) brass aluminum t=1mm models with short circuit protection (e2e-x j y j -53-us) e2e-x5 jj , e2e-x10 jj e2e-x10m jj e2e-x18m jj size of target d [mm (inch)] size of target d [mm (inch)] size of target d [mm (inch)] sensing distance x [mm (inch)] sensing distance x [mm (inch)] sensing distance x [mm (inch)] e2e-x10miron
e2e2-wireac e2e2-wireac 10 dimensions j drawing locator type part number figure number prewired without shielded m8 e2e-x1r5y j -n 1 short-circuit p r o t e c t i o n m12 e2e-x2y j -n 3 protection m18 e2e-x5y j -n 5 m30 e2e-x10y j -n 7 unshielded m8 e2e-x2my j -n 2 m12 e2e-x5my j -n 4 m18 e2e-x10my j -n 6 m30 e2e-x18my j -n 8 prewired with shielded m18 e2e-x5y j -53-us 9 short-circuit p r o t e c t i o n m30 e2e-x10y j -53-us 11 protection unshielded m18 e2e-x10my j -53-us 10 m30 e2e-x18my j -53-us 12 4-pin connector shielded m12 e2e-x2y- j -m1-n 13 p (m12) m18 e2e-x5y1-m1-n 15 m30 e2e-x10y- j -m1-n 17 unshielded m12 e2e-x5my- j -m1-n 14 m18 e2e-x10my- j -m1-n 16 m30 e2e-x18my- j -m1-n 18 3-pin microchange shielded m12 e2e-x2y- j -m4 13 p g connector (m12) m18 e2e-x5y- j -m4 15 m30 e2e-x10y- j -m4 17 unshielded m12 e2e-x5my- j -m4 14 m18 e2e-x10my- j -m4 16 m30 e2e-x18my- j -m4 18
e2e2-wireac e2e2-wireac 11 unit: mm (inch) prewired models (shielded) prewired models (unshielded) fig.1: e2e-x1r5y j -n fig. 2: e2e-x2my j -n m8 x 1 round vinyl-insulated cable 4 dia. (0.08 dia. x 60), 2 cores standard length: 2 m operation indicator two clamping nut toothed washer m8 x 1 6.1 dia. round vinyl-insulated cable 4 dia. (0.08 dia. x 60), 2 cores standard length: 2 m operation indicator two clamping nut toothed washer fig. 3: e2e-x2y j -n fig. 4: e2e-x5my j -n m12 x 1 toothed washer operation indicator round vinyl-insulated cable 4 dia. (0.08 dia. x 60), 2 cores standard length: 2 m toothed washer operation indicator round vinyl-insulated cabl e 4 dia. (0.08 dia. x 60) , 2cores standard length: 2 m 9dia. m12 x 1 two clamping nut two clamping nut 15 dia. (0.59) 40 (1.57) 15 dia. (0.59) 40 (1.57) 36 (1.42) 6 (0.24) 21 dia. (0.83) 43 (1.69) 21 dia. (0.83) 43 (1.69) 7 (0.28) 36 (1.42) 38 (1.50) 38 (1.50) fig. 5: e2e-x5y j -n fig. 6: e2e-x10my j -n operation indicator two clamping nut toothed washer m18 x 1 m18 x 1 operation indicator two clamping nut toothed washer 14.8 dia. round vinyl-insulated cable 6 dia. (0.12 dia. x 45), 2/3 cores 6 dia. (0.08 dia. x 6/17) robotics cable models standard length: 2m round vinyl-insulated cable 6 dia. (0.12 dia. x 45), 2/3 cores 6 dia. (0.08 dia. x 6/17) robotics cable models standard length: 2m 43 (1.69) 10 (0.39) 29 dia. (1.14) 29 dia. (1.14) 43 (1.69) 38 (1.50) 38 (1.50) fig. 7: e2e-x10y j -n fig. 8: e2e-x18my j -n m30 x 1.5 operation indicator two clamping nut toothed washer m30 x 1.5 operation indicator two clamping nut toothed washer 26.8 dia. round vinyl-insulated cable 6 dia. (0.12 dia. x 45), 2/3 cores 6 dia. (0.08 dia. x 6/17) robotics cable models standard length: 2m round vinyl-insulated cable 6 dia. (0.12 dia. x 45), 2/3 cores 6 dia. (0.08 dia. x 6/17) robotics cable models standard len g th: 2m 48 (1.89) 43 (1.69) 42 dia. (1.65) 13 (0.51) 48 (1.89) 43 (1.69) 42 dia. (1.65)
e2e2-wireac e2e2-wireac 12 j pre-wired models with short-circuit protection fig. 9: e2e-x5y j -53-us unshielded fig.10: e2e-x10my j -53-us 24 (0.945) across flats 4 (0.16) indicator m18 p=1.0 24 (0.945) across flats 18.5 dia. (0.728) 29 (1.14) m18 p=1.0 indicator 29 (1.14) 40 (1.57) 47 (1.85) 18.5 dia. (0.728) 10 (0.39) cable: 6 (0.24) dia. 2 m (6.56 ft) cable: 6 (0.24) dia. 2 m (6.56 ft) 40 (1.57) 47 (1.85) shielded fig. 11: e2e-x10y j -53-us fig. 12 e2e-x18my j -53-us indicator cable: 6 (0.24) dia. 2 m (6.56 ft) 30.5 dia (1.201) 36 (1.417) across flats m30 p=1.5 (0.06) 5 (0.20) 30.5 dia (1.201) 36 (1.417) across flats 38 (1.50) 50 (1.97) 57 (2.24) 38 (1.50) 50 (1.97) 57 (2.24) indicator 13 (0.51) cable: 6 (0.24) dia. 2 m (6.56 ft) connector models (shielded) connector models (unshielded) fig. 13: e2e-x2y1-m1-n fig. 14: e2e-x5my j -m1-n operation indicator two clamping nut toothed washer m12 x 1 m12 x 1 operation indicator two clamping nut toothed washer m12 x 1 m12 x 1 9dia. 53 (2.09) 38 (1.50) 21 dia. (0.83) 53 (2.09) 38 (1.50) 21 dia. (0.83) 7 (0.28) fig. 15: e2e-x5y1-m1-n fig. 16: e2e-x10my j -m1-n operation indicator two clamping nut toothed washer m12 x 1 m18 x 1 m12 x 1 m18 x 1 operation indicator two clamping nut toothed washer 14.8 dia. 53 (2.09) 38 (1.50) 29 dia. (1.14) 53 (2.09) 38 (1.50 ) 29 dia. (1.14) 10 (0.39)
e2e2-wireac e2e2-wireac 13 connector models (shielded), continued connector models (unshielded), continued fig.17: e2e-x10y1-m1-n fig. 18: e2e-x18my j -m1-n m30 x 1.5 operation indicator two clamping nut toothed washer m12 x 1 m30 x 1.5 operation indicator two clamping nut toothed washer m12 x 1 26.8 dia. 58 (2.28) 43 (1.69) 42 dia. (1.65) 58 (2.28) 43 (1.69) 42 dia. (1.65) 13 (0.51) j mounting holes f dimensions m8 m12 m18 m30 f (mm) 8.5 +0.5 / 0 dia. 12.5 +0.5 / 0 dia. 18.5 +0.5 / 0 dia. 30.5 +0.5 / 0 dia. installation j pin arrangement e2e-x j y j -m1 ac 2-wire models output configuration applicable models pin arrangement no e2e-x j y1-m1-n note: terminals 1 and 2 are not used. load load nc e2e-x j y2-m1-n note: terminals 3 and 4 are not used. load load no, nc e2e-x j y j -m4
e2e2-wireac e2e2-wireac 14 precautions j mounting do not tighten the nut with excessive force. a washer must be used with the nut. shielded model unshielded model part b part a part b part a note: the table above right shows the tightening torques for part a and part b nuts. in the previous examples, the nut is on the sensor head side (part b) and hence the tightening torque for part b applies. if this nut is in part a, the tightening torque for part a applies instead. type part a part b y p length torque torque m8 shielded 9mm 9n s m ( 9 0 k g f s 12 n s m ( 1 2 0 k g f s unshielded 3mm (90 kgf s cm) (120 kgf s cm) m12 30 n s m (310 kgf s cm) m18 70 n s m (710 kgf s cm) m30 180 n s m (1,800 kgf s cm) j effects of surrounding metal when mounting the e2e within a metal panel, ensure that the clearances given in the following table are maintained. failure to maintain these distances may cause deterioration in the performance of the sensor. ddia. type dimension m8 m12 m18 m30 e2e-x j y j -n shielded ? 0mm 0mm 0mm 0mm j j ac 2-wire d 8mm 12 mm 18 mm 30 mm d 0mm 0mm 0mm 0mm m 4.5 mm 8mm 20 mm 40 mm n 12 mm 18 mm 27 mm 45 mm unshielded ? 6mm 15 mm 22 mm 30 mm d 24 mm 40 mm 55 mm 90 mm d 6mm 15 mm 22 mm 30 mm m 8mm 20 mm 40 mm 70 mm n 24 mm 36 mm 54 mm 90 mm
e2e2-wireac e2e2-wireac 15 j mutual interference when installing two or more sensors face-to-face or side-by-side, ensure that the minimum distances given in the following table are main- tained. a b type dimension m8 m12 m18 m30 e2e-x j y j -n shielded a 20 mm 30 (20) mm 50 (30) mm 100 (50) mm j j ac 2-wire b 15 mm 20 (12) mm 35 (18) mm 70 (35) mm unshielded a 80 mm 120 (60) mm 200 (100) mm 300 (100) mm b 60 mm 100 (50) mm 110 (60) mm 200 (100) mm note: the figures in parentheses refer to sensors operating at different frequencies. j installation power reset time the proximity sensor is ready to operate within 100 ms after power is supplied. if power supplies are connected to the proximity sensor and load respectively, be sure to supply power to the proximity sen- sor before supplying power to the load. power off the proximity sensor may output a pulse signal when it is turned off. therefore, it is recommended to turn off the load before turning off the proximity sensor. power supply transformer when using a dc power supply, make sure that the dc power sup- ply has an insulated transformer. do not use a dc power supply with an auto-transformer. sensing target metal coating: the sensing distances of the proximity sensor vary with the metal coating on sensing targets. j wiring high-tension lines wiring through metal conduit if there is a power or high-tension line near the cord of the proximity sensor, wire the cord through an independent metal conduit to pre- vent against proximity sensor damage or malfunctioning. cable tractive force do not pull cable with the tractive forces exceeding the following. diameter tractive force 4mmdia.max. 30 n max. 4 mm dia. min. 50 n max. j mounting the proximity sensor must not be subjected to excessive shock with a hammer when it is installed, or the proximity sensor may be damaged or lose its wate r-resistance. j environment water resistance do not use the proximity sensor underwater, outdoors, or in the rain. operating environment be sure to use the proximity sensor within its operating ambient temperature range and do not use the proximity sensor outdoors to maintain its reliability and life expectancy. although the proximity sensor is water resistant, a cover to protect the proximity sensor from water or water soluble machining oil is recommended so that its reliability and life expectancy can be maintained. do not use the proximity sensor in an environment with chemical gas (e.g., strong alkaline or acid gasses including nitric, chromic, and concentrated sulfuric acid gases).
e2e2-wireac e2e2-wireac 16 j connecting load to ac 2-wire sensor refer to the following before using ac or dc 2-wire proximity sen- sors. surge protection although the proximity sensor has a surge absorption circuit, if there is any machine that has a large surge current (e.g., a motor or welding machine) near the proximity sensor, connect a surge ab- sorber to the machine. leakage current when it is off, the proximity sensor has leakage current. refer to leakage current characteristics. in this case, the load is imposed with a small voltage and the load may not be reset. before using the proximity sensor, make sure that this voltage is less than the load reset voltage. the ac 2-wire proximity sensor cannot be con- nected to any card-lift-off relay (e.g., the g2a) because contact vibration of the relay will be caused by the leakage current and the life of the relay will be shortened. countermeasures against leakage current ac 2-wire models connect a bleeder resistor as the bypass for the leakage current so that the current flowing into the load will be less than the load reset current. as shown in the following diagram, connect the bleeder resistor so that the current flowing into the proximity sensor will be 10 ma mini- mum and the residual voltage imposed on the load will be less than the load reset voltage. load bleeder resistor r vac power supply v s refer to the following to calculate the bleeder resistance and the al- lowable power of the bleeder resistor. r Q v s /(10 -- i) (k ? ) p>v s 2 /r (mw) p: the allowable power of the bleeder resistor. (the actual power capacity of the bleeder resistor must be at least a few times as large as the allowable power of the bleeder resistor.) i: load current (ma) the following resistors are recommended. 100 vac (supply voltage): a resistor with a resistance of 10 k ? max- imum and an allowable power of 3 w minimum 200 vac (supply voltage): a resistor with a resistance of 20 k ? max- imum and an allowable power of 10 w minimum if these resistors generate excessive heat, use a resistor with a re- sistanceof10k ? maximum and an allowable power of 5 w mini- mum at 100 vac and a resistor with a resistance of 20 k ? maximum and an allowable power of 10 w minimum at 200 vac instead. j precautions for ac 2-wire proximity sensors in operation connector model connection type method description ac 2-wire and (serial connection) load load load v s R 100 v incorrect correct if 100 or 200 vac is imposed on the proximity sensors, v l (i.e., the voltage imposed on the load) will be obtained from the following. v l =v s -- (residual voltage x no. of proximity sensors) (v) therefore, if v l is lower than the load operating voltage, the load will not operate. a maximum of three proximity sensors can be connected in series provided that the supply voltage is 100 v minimum.
e2e2-wireac e2e2-wireac j precautions for ac 2-wire proximity sensors in operation, continued model connection type method description ac 2-wire or (parallel connection) load load vac power supply v s a b a b incorrect correct in principle, more than two proximity sensors cannot be connected in parallel. provided that proximity sensor a does not operate with proximity sensor 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 to the following reason. when proximity sensor a is on, the voltage imposed on proximity sensor a will drop to approximately 10 v and the load current flows into proximity sensor a, and when one of the sensing objects is close to proximity sensor b, proximity sensor b will not operate because the voltage imposed on proximity sensor b is 10 v, which is too low. when proximity sensor a is off, the voltage imposed on proximity sensor 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. c a t . n o . ced sax 4 1 1 / 0 1 s p e c i f i c a t i o n s s u b j e c t t o c h a n g e w i t h o u t n o t i c e . p r i n t e d i n u . s . a . o m r o n e l e c t r o n i c s l l c o n e e a s t c o m m e r c e d r i v e s c h a u m b u r g , i l 60173 n o t e : d i m e n s i o n s s h o w n a r e i n m i l l i m e t e r s . to c o n v e r t m i l l i m e t e r s t o i n c h e s d i v i d e b y 2 5 . 4 . 1 - 8 0 0 - 5 5 - o m r o n o m r o n canada , i n c . 8 8 5 m i l n e r a v e n u e s c a r b o r o u g h , o n t a r i o m 1 b 5 v 8 4 1 6 - 2 8 6 - 6 4 6 5 r o m r o n o n -- l i n e g l o b a l -- h t t p : / / w w w . o m r o n . c o m u s a -- h t t p : / / w w w . o m r o n . c o m / o e i c a n a d a -- h t t p : / / w w w . o m r o n . c o m / o c i

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