Ultrasonic retroreflective sensors
Description The retro-reflective ultrasonic sensor is similar in operation to the ultrasonic proximity sensor. The distance from the sensor to the reflector or to an object within the sensing distance is determined by measuring the propagation time. Any sound reflecting, stationary object can be used as a reflector. The sensing distance Sd (distance sensor-reflector) can be adjusted to the set up conditions with the sensor's potentiometer. As long as the measured propagation time of the ultrasonic signal corresponds to the distance from the sensor to the reflector, the device is in the non-active state. When an object comes within the sensing distance, the propagation time changes and the sensor changes to the active state. This also allows detection of sound absorbent and sound deflecting objects. Introduction Setting Sde reflector distance Retro-reflective sensor with short range Note minimum target size at close range Scanning range Sd The sensor's potentiometer allows the user to adjust the set up conditions for a specific reflector position (Sde). The is also an adjustment aid as follows: 1. Reflector in operating range If the setting of Sde deviates from the actual reflector position by less than ±2,5 %, the reflector is in the operating range. The lights steadily, the is inactive. 2. Reflector in the boundary range Up to a deviation of ±5 % the remains inactive but the flashes. This indicates that the setting of Sde is not optimal and needs to be corrected. Object Reflector position Sde Reflector position 2,5 % 5 % Reflector e. g. fixed machine part Reflector e. g. fixed machine part Operating range on Boundary range flashing All adjustments are made using the single built-in button. of reflector s position To enter the adjustment mode, push the button for more than two seconds. You will know you have pushed it long enough by the indicating flashing green. When the button is released, the continues to flash. Any subsequent push of the button will teach the position of the reflector. Resetting to original factory settings Connecting the white wire to +Vs for > 6 sec, will automatically restore the original factory settings. Fast flashing of the green indicates successful completion of the resetting. 65 www.baumerelectric.com distributed by www.laumans.com
Object detection Standard object/reflector The standard target is defined as a square, level object with an edge length of 3 mm (Sde > 1 mm: 1 mm edge length, Sde 25 mm: 3 mm edge length) which is perpendicular to the sensor reference axis. The reflector must be made of a material with good sound reflection properties and be at least the same size as the target. Object at close range For reliable detection, the sound cone must be covered completely so that no echo is returned from the reflector. The object diameter necessary for this is at least 3 mm in URDK 3 and at least 1 mm in URAM 5. Advantages short range Object ø standard target Reflector Object in the rest of the operating range To ensure reliable object detection, the reflected signal must be strong enough. The strength of the reflected signal is dependent on the size of the object. For a standard object, or larger, the full sensing distance Sd is available. Object Scanning range Sd Easy detection even for 1 % sound absorbent materials Reliable detection of sound deflecting objects No blind region in front of the sensor for objects standard object Reflector Reflector Introduction Sound deflecting object 651
Overview rectangular designs product family URDK 1 URDK URDK URDK URDK 3 URDK 3 SONUS Overview 1,4 mm mm mm mm 3 mm 3 mm... mm... mm... 4 mm... 1 mm... 1 mm... mm potentiometer < 1,5 mm < 1,5 mm < 1,5 mm < 1,5 mm < 3 mm < 3 mm -1... +6 C -1... +6 C -1... +6 C -1... +6 C -1... +6 C plastic (ASA) polter polter polter polter / die-cast zinc cable, 2 m flylead connector M8 connector M8 polter / die-cast zinc connector M12 IP 67 IP 67 IP 67 IP 67 IP 67 Page 653 654 655 656 657 658 cylindrical designs product family URAM 5 3 mm... 3 mm potentiometer < 3 mm brass nickel plated cable, 2 m connector M12 Page 659 652
URDK 1 (Sde = mm) SONUS URDK 1 Sd = mm small housing dimensions very low mass (4 g) long sensing range / no blind range adjustment temperature drift response time ton release time toff voltage supply range +Vs current consumption max. reverse polarity protection depth... mm 4... mm ± 2,5 % Sde ± 5 % Sde < 1,5 mm < 2 % Sde < 15 ms < 15 ms 38 khz 12... 3DC 3 ma rectangular plastic (ASA) 1,4 mm 27 mm mm ESW 31A, ESG 32A dimension drawings 12 12 3 3 6,7 27 17,9 3,2 2,9 15 4,9 27 17,9 M8 x 1 2,9 2,9 1,4 7 1,4 flylead connector version standard cable length mm (L) connection diagrams 12 3 4,9 27 17,9 34 L 1,4 M8 x 1 3,2 control/ 2,9 2,9 15 NPN 25 15 1 5-5 -1-15 - -25 4 6 8 1 1 16 18 2 24 standard square target, size 15 x 15 mm, positioned perpendicularly to sensor's reference axis 3,2 2,9 15 control/ SONUS URDK 1 Sd = mm order reference circuit connection s URDK 1N89 NPN make function (NO) / break function (NC) cable, 2 m URDK 1N89/KS35A NPN make function (NO) / break function (NC) flylead connector M8 URDK 1N89/S35A NPN make function (NO) / break function (NC) connector M8 URDK 1P89 make function (NO) / break function (NC) cable, 2 m URDK 1P89/KS35A make function (NO) / break function (NC) flylead connector M8 URDK 1P89/S35A make function (NO) / break function (NC) connector M8 653
URDK (Sde = mm) URDK Sd = mm internal and external small sonic beam angle compact housing Sd = mm URDK adjustment temperature drift response time ton release time toff order reference URDK N69/S35A URDK N79/S35A URDK P69/S35A URDK P79/S35A... mm 4... mm ± 2,5 % Sde ± 5 % Sde < 1,5 mm < 2 % Sde < 1 ms < 1 ms 38 khz voltage supply range +Vs 12... 3DC current consumption max. 35 ma reverse polarity protection rectangular polter mm 42 mm depth 15 mm connection s connector M8 ESW 31A, ESG 32A circuit NPN make function (NO) NPN break function (NC) make function (NO) break function (NC) dimension drawing Teach- in 3,2 29,5 9,5 42 M8 x 1 5,7 6,5 connection diagrams 15 11,8 control/ NPN control/ 25 15 1 5-5 -1-15 - -25 4 6 8 1 1 16 18 2 24 standard square target, size 15 x 15 mm, positioned perpendicularly to sensor's reference axis 654
URDK (Sde = 4 mm) URDK Sd = 4 mm internal and external wide sonic beam angle compact housing adjustment temperature drift response time ton release time toff order reference URDK N6912/S35A URDK N7912/S35A URDK P6912/S35A URDK P7912/S35A... 4 mm 1... 4 mm ± 2,5 % Sde ± 5 % Sde < 1,5 mm < 2 % Sde < 25 ms < 25 ms 29 khz voltage supply range +Vs 12... 3DC current consumption max. 35 ma reverse polarity protection rectangular polter mm 42 mm depth 15 mm connection s connector M8 ESW 31A, ESG 32A circuit NPN make function (NO) NPN break function (NC) make function (NO) break function (NC) dimension drawing Teach- in 3,2 9,5 29,5 42 M8 x 1 5,7 6,5 connection diagrams 15 11,8 control/ NPN 5 4 3 1-1 - -3-4 -5 5 1 15 25 3 35 4 45 5 standard target with 3 x 3mm, directed rectangular to sensor's reference axis control/ Sd = 4 mm URDK 655
URDK (Sde = 1 mm) URDK Sd = 1 mm internal and external small sonic beam angle compact housing Sd = 1 mm URDK adjustment temperature drift response time ton release time toff order reference URDK N693/S35A URDK N793/S35A URDK P693/S35A URDK P793/S35A... 1 mm... 1 mm ± 2,5 % Sde ± 5 % Sde < 1,5 mm < 2 % Sde < 5 ms < 5 ms 24 khz voltage supply range +Vs 12... 3DC current consumption max. 35 ma reverse polarity protection rectangular polter mm 42 mm depth 15 mm connection s connector M8 ESW 31A, ESG 32A circuit NPN make function (NO) NPN break function (NC) make function (NO) break function (NC) dimension drawing Teach- in 3,2 29,5 9,5 42 M8 x 1 5,7 6,5 connection diagrams 15 11,8 control/ NPN control/ 1 1 8 6 4 - -4-6 -8-1 -1 1 3 4 5 6 7 8 9 1 11 standard target with 3 x 3 mm, directed rectangular to sensor's reference axis 656
URDK 3 (Sde = 1 mm) URDK 3 Sd = 1 mm potentiometer synchronization detects sound absorbing objects adjustment temperature drift synchronization multiplex version response time ton (sync on) release time toff (sync on) voltage supply range +Vs current consumption max. reverse polarity protection depth... 1 mm... 1 mm ± 2,5 % Sde ± 5 % Sde < 3 mm potentiometer < 2 % Sde on request < 5 ms < 5 ms 24 khz 12... 3DC 35 ma rectangular polter / die-cast zinc 3 mm 65 mm 31 mm ES, ESW 33A, ESG 34A dimension drawings order reference circuit connection s URDK 3N173 NPN make function (NO) cable, 2 m URDK 3N173/S NPN make function (NO) connector M12 URDK 3N373 NPN break function (NC) cable, 2 m URDK 3N373/S NPN break function (NC) connector M12 URDK 3P173 make function (NO) cable, 2 m URDK 3P173/S make function (NO) connector M12 URDK 3P373 break function (NC) cable, 2 m URDK 3P373/S break function (NC) connector M12 4,5 3 31,1 Pot 18,4 23 37,4 65 11 M12 x 1 connection diagrams 11,4 control 4,5 NPN 3 31,1 Pot 18,4 23 37,4 65 12 1 1 8 6 4 - -4-6 -8-1 -1 1 3 4 5 6 7 8 9 1 11 standard target with 3 x 3 mm, directed rectangular to sensor's reference axis 11,4 control Sd = 1 mm URDK 3 657
URDK 3 (Sde = mm) URDK 3 Sd = mm internal long sensing range detects sound absorbing objects Sd = mm URDK 3 adjustment temperature drift response time ton release time toff order reference URDK 3P614/S URDK 3P714/S... mm 4... mm ± 4 % Sde ± 6 % Sde < 3 mm < 2 % Sde < 8 ms < 8 ms khz voltage supply range +Vs 12... 3DC current consumption max. 35 ma reverse polarity protection rectangular polter / die-cast zinc 3 mm 65 mm depth 31 mm connection s connector M12 ES, ESW 33A, ESG 34A circuit make function (NO) break function (NC) dimension drawing 3 31,1 18,4 4,5 37,4 23 11 65 M12 x 1 11,4 connection diagram 25 15 1 5-5 -1-15 - -25 4 6 8 1 1 16 18 2 24 standard target with 1 x 1 mm, positioned perpendicularly to sensor's reference axis 658
URAM 5 URAM 5 Sd = 3 mm or potentiometer synchronization long sensing range synchronization multiplex version response time ton release time toff voltage supply range +Vs current consumption max. reverse polarity protection... 3 mm 6... 3 mm ± 4 % Sde ± 6 % Sde < 3 mm on request < 16 ms < 16 ms 1 khz 12... 3DC 35 ma cylindrical brass nickel plated 3 mm 95 mm ES, ESW 33A, ESG 34A dimension drawings M3 x 1,5 order reference adjustment circuit temperature drift connection s URAM 5N1721 potentiometer NPN make function (NO) <,18 % Sde/K cable, 2 m URAM 5N1721/S potentiometer NPN make function (NO) <,18 % Sde/K connector M12 URAM 5N3721 potentiometer NPN break function (NC) <,18 % Sde/K cable, 2 m URAM 5N3721/S potentiometer NPN break function (NC) <,18 % Sde/K connector M12 URAM 5P1721 potentiometer make function (NO) <,18 % Sde/K cable, 2 m URAM 5P1721/S potentiometer make function (NO) <,18 % Sde/K connector M12 URAM 5P3721 potentiometer break function (NC) <,18 % Sde/K cable, 2 m URAM 5P3721/S potentiometer break function (NC) <,18 % Sde/K connector M12 URAM 5P6121 make function (NO) < 2 % Sde cable, 2 m URAM 5P6121/S make function (NO) < 2 % Sde connector M12 URAM 5P7121 break function (NC) < 2 % Sde cable, 2 m URAM 5P7121/S break function (NC) < 2 % Sde connector M12 SW 36 M3 x 1,5 M12 x 1 ø 44,5 connection diagrams 58,5,2 7 95 11 = or potentiometer control SW 36 Teach- in NPN ø 44,5 3 25 15 1 5-5 -1-15 - -25-3 4 6 8 1 1 16 18 2 24 26 28 standard target with 1 x 1 mm, positioned perpendicularly to sensor's reference axis 58,5,2 7 95 control Sd = 3 mm URAM 5 659
66