f a c t o r y a u t o m a t i o n 24 subject to reasonable modifications due to technical advances. copyright by pepperl+fuchs, printed in germany pepperl+fuchs group tel.: germany (6 21) 7 76-11 11 usa (3 30) 4 25 35 55 singapore 7 79 90 91 internet http://www.pep perl-fuchs.com 5) to iec 68-2-6 and iec 68-2-27 synchronisation: in order to suppress mutual interference, the sensor operates via one sychronised input. if the input is unswitched, the senor operates at an internally generated pulse rate. the sensor can be synchronised by the super position of the square - shaped voltage. one synchronising pulse at the synchronisation input enables one measuring cycle to be completed. the pulse width must be greater than 100 s. the measuring cycle com- mences with the descending flank. the state of the switching output changes after the switching threshold has been exceeded five times, as determined internally by five meas- urements. a low level 3 1 s, or an open synchronisation input results in normal oper- ation of the sensor. synchronisation cannot take place during teaching and vice versa. two operating modes are possible: 1. multiple sensors are controlled with the same synchronising signal. the sensors operate on the same pulse. 2. the synchronising pulses are fed cyclical- ly to only one sensor at a time. the sen- sors operate in multiplex mode. a high level at the sychronisation input deacti- vates the sensor. to set the switch points: the ultrasonic sensor is provided with a switching output with two teachable switch points. these are set up by applying the supply voltage -u b bzw. +u b to the teaching input. the supply voltage should be applied to the teaching input for at least 1 s. during the teaching process the led's indicate whether the sensor has recognised the tar- get. the switch points a1 and a2 are taught by voltage -u b and + u b, , respectively. five functions can be set: 1. window mode, normally open function 2. window mode, normally closed function 3. one switch point, normally open function 4. one switch point, normaly closed function 5. detection of presence of object - switch output - 5 different output functions available - teaching input - can be synchronised - can be deactivated - watchdog ultrasonic sensors single head system with one switch output figure 1 housing material: nickel plated brass transducer material: epoxy resin/hollow glass sphere mixture polyurethane foam cover: pbt (polybutylenterephthalate) m30x1.5 led 94 22 width across flats 36, thickness 5 date of issue 05.06.1996 detection range: 60 mm ... 500 mm figure 1 version: transceiver with one switch output order code: pnp ub 500-30gm-e2-v15 npn ub 500-30gm-e0-v15 operating data: detecting range 60 mm ... 500 mm standart test plate (min. flat surface) 100 mm x 100 mm close range (unsuitable for switching) 0 mm ... 60 mm aperture angle of sonic lobe approx. 5 at -3 db transducer frequency approx. 375 khz response time approx. 38 ms switching hysteresis 1 % of the set operating distance reproducibility 1 % temperature drift 0.2 % / k operating cycle frequency max. 13 hz measuring cycle time t m approx. 6.5 ms synchron. frequency equi-pulsed 1 / t m1 synchron. frequency multiplex 1 / t m1 + 1 / t m2 + ... electrical data: operating voltage u b 20 v dc ... 30 v dc ripple 10 % ss , u b = 33 v rated operating current 60 ma switch output 200 ma k , u b -3 v short circuit/overload resistent pnp e2 npn e0 teaching input -u b ... (-u b +2 v) near switch point (+u b -2 v) ... +u b far switch point synchronising input -u b ... (-u b +1 v) low level (-u b +5 v) ... +u b high level input impedance 27 k w synchronisation pulse width 3 100 s synchronisation pause width 3 100 s indicators: led green "power on", teaching function object detected led red "fault", object uncertain led yellow switching condition indicator, teaching function, no object detected mechanical data: operating temperature range 248 kelvin ... 343 kelvin (-25 c ... +70 c) storage temperature range 233 kelvin ... 358 kelvin (-40 c ... +85 c) protection class to din 40 050 ip 65 permissible shock and b 30 g, t 11 ms vibration loading 5) f 55 hz, a 1 mm connection type equipment connector - v15 in compliance with en 60974-5-2
f a c t o r y a u t o m a t i o n 25 subject to reasonable modifications due to technical advances. copyright by pepperl+fuchs, printed in germany pepperl+fuchs group tel.: germany (6 21) 7 76-11 11 usa (3 30) 4 25 35 55 singapore 7 79 90 91 internet http://www.pep perl-fuchs.com accessories: cable connectors, see catalogue of in- ductive, capacitive and magnetic sen- sors and section accessories. operating condition - indications green led red led yellow led switch point teaching object detected flashing off off no object detected flashing off on object uncertain (teaching invalid) off flashing off normal operation on off switch condition interference (e.g. comp. air) off flashing last condition programmed switching output function window operation, normally open function window operation, normally closed funktion one switch point, normally open function one switch point, normally closed function teach window operation, normally open function: - set target at near switch point - teach switch point a1 with - u b - set target at far switch point - teach switch point a2 with + u b teach window operation, normally closed function: - set target at near switch point - teach switch point a2 with + u b - set target at far switch point - teach switch point a1 with - u b teach one switch point, normally open function: - set target at near switch point - teach switch point a2 with + u b - cover sensor with the palm of the hand, or remove all objects from the detection ran- ge of the sensor - teach switch point a1 with - u b teach one switch point, normally closed function: - set target at near switch point - teach switch point a1 with - u b - cover sensor with the palm of the hand, or remove all objects from the detection ran- ge of the sensor - teach switch point a2 with + u b teach detection of presence of object: - cover sensor witch the palm of the hand, or remove all objects from the detection range of the sensor - teach switch point a1 - u b - teach switch point a2 + u b pre-setting of the switch points: a1: near range a2: nominal range note: a programming unit ub-prog1 is o b - tainable for the basic setting of the switch points and output functions. a1 a2 a2 a1 a2 a 1 -> , a 2 -> : detection of presence of object object detected: switch output closed no object detected: switch output open a1 a 1 < a 2 : a 2 < a 1 : a 1 -> : a 2 -> : 8 8 8 object range ultrasonic sensors single head system with one switch output standard symbol / connections: transceiver ( version e2, pnp) 1 2 5 4 3 + u b - u b teaching input sync. input switch output sync. input teaching input switch output 2 5 3 + u b - u b 4 1 transceiver (version e0, npn) v15 connector arrangement date of issue 05.06.1996 8
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