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_PosCon3D.docx 

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Baumer Electric AG 

17.07.2014 14:21/tof V1.01 ANW_81125407

 

 

Frauenfeld, Switzerland

 

 

6.3  Functional principle 

 

 

The PosCon 3D edge sensor operates based on 
the laser triangulation principle. By means of 
special optics, a laser beam is enlarged into a line 
and projected to the surface of the object to be 
measured. Using the multi-lens system, the 
reflected light from the laser line is projected onto 
a matrix. A controller calculates from this matrix 
image the precise position e.g. of the beginning or 
end of an object (i.e. of an edge) along the laser 
line. Thanks to the new Baumer technology, the 
position of the edge is output irrespectively of the 
distance between the sensor and the object to be 
measured. The sync input on PosCon 3D enables 
synchronization of measurement data with an 
object movement. 
 

Содержание PosCon3D

Страница 1: ......

Страница 2: ...rface 14 4 4 Sensor alignment 15 4 5 Standard installation 16 4 6 Angled installation 18 4 7 Blind region 19 4 8 Practical zero point search 20 4 9 Installation accessories 20 5 Configuration via touc...

Страница 3: ...1 01 ANW_81125407 Frauenfeld Switzerland 7 2 Laser class 59 7 3 Influence of ambient light 59 7 4 Front optics 59 7 5 Cleaning the sensors 60 8 Error correction and tips 60 8 1 Effects of deviations i...

Страница 4: ...D sensor detects edges and outputs their position distance and center between edges It was especially developed for easy handling flexible use and precise measurement The red light laser ensures that...

Страница 5: ...utput can be configured Connection Installation Function Edge Function Width Function Gap Let s get started Optional Measuring field limitation Optional Switching output 2 1 Connection Connection Conn...

Страница 6: ...urface background or to the object if there is no reference surface in the measuring field The object must be within the measuring field i e the distance from the sensor must be between 150 and 250 mm...

Страница 7: ...ed as an edge OBJECT Selection of light or dark objects to optimize the measurement results PRECISION To achieve better precision and resolution it is possible to alternate between Standard High and V...

Страница 8: ...he object to be measured OBJECT Selection of light or dark objects to optimize the measurement results PRECISION To achieve better precision and resolution it is possible to alternate between Standard...

Страница 9: ...epth to be detected as an edge OBJECT Selection of light or dark objects to optimize the measurement results PRECISION To achieve better precision and resolution it is possible to alternate between St...

Страница 10: ...with a rectangle of automatic size Separate configuration of the single points of the field LIMIT LEFT LIMIT RIGHT OFFSET Switching output optional The sensor is equipped with a switching output that...

Страница 11: ...angled plug Other cable lengths are available ATTENTION Laser class 1 laser beam according to EN 60825 1 2007 This product can be operated safely without any additional safety precautions Nevertheles...

Страница 12: ...white Rx Tx RS 485 receive transmit B Pin 2 BN brown Vs Voltage supply 15 28 VDC Pin 3 GN green analog Output analog 4 20 mA or 0 10V Pin 4 YE yellow out Switch out push pull Pin 5 GY gray alarm Alar...

Страница 13: ...of the sensor during installation the surfaces defined here are available The laser beam of the sensor runs parallel to level R3 and is at a right angle to levels R1 and R2 Levels R1 R2 and R3 serve...

Страница 14: ...ons see Section MEASURING FIELD If no reference surface is available as a measuring level next background edge 250 mm away from sensor level R2 the sensor should be aligned to the object If the PosCon...

Страница 15: ...To get the most accurate measurement results possible in angled installation the inclination angle of the sensor has to be taught in see Section FLEX MOUNT The distance from the reference surface or...

Страница 16: ...2014 14 21 tof V1 01 ANW_81125407 Frauenfeld Switzerland 4 5 Standard installation In standard installation the sensor is mounted at a right angle 90 to the reference surface or the object when there...

Страница 17: ...V 250 mm 0 mm 100 mm Measuring field X Z 37 5 mm 62 5 mm 5 75 mA 1 87 V Blind region Reference point The sensor measures objects and edges at a distance of 150 250 mm z axis and in the measuring rang...

Страница 18: ...lowable inclination angle of 30 the sensor measures objects and edges within the measuring field defined below The important terms left and right are to be regarded respectively from the connector sid...

Страница 19: ...placement of objects there should be avoided because the shadowing of objects can create a fictitious edge which is detected by the sensor and results in the output of an incorrect measuring value 0 m...

Страница 20: ...fted and adjusted inside the mounting hole 4 9 1 Mounting kit for standard installation Order no 11120705 With the mounting bracket for standard installation the sensor can be mounted quickly and easi...

Страница 21: ...th this mounting kit 4 9 3 Mounting kit for 30 angled installation with vertical mounting Order no 11126837 If it is not possible to the position the sensor at a right angle to the reference surface t...

Страница 22: ...s displayed on a black background the value of the bottom line can be adjusted using the UP DOWN keys and saved using SET Process successful The display background lights up green value successfully s...

Страница 23: ...ering When it is pressed the following text appears To re enable the touch panel it is required to quickly slide a finger over all four keys from left to right slide over ESC UP DOWN and SET When cont...

Страница 24: ...t to left Jump directly to run mode Can be used from any menu 5 1 5 LEDs on the sensor LED Lights up Flashes Yellow out1 activated Adjustable switching output1 activated Rot out2 activated Alarm or er...

Страница 25: ...en_BA_OxE7_PosCon3D docx 25 64 Baumer Electric AG 17 07 2014 14 21 tof V1 01 ANW_81125407 Frauenfeld Switzerland 5 2 Function tree The menu that can be accessed via the touch panel is shown below...

Страница 26: ...en_BA_OxE7_PosCon3D docx 26 64 Baumer Electric AG 17 07 2014 14 21 tof V1 01 ANW_81125407 Frauenfeld Switzerland...

Страница 27: ...continuously measures the angle and the distance from the optical axis to the measuring level and outputs the values This makes installation much easier and also points out installation errors LIVE M...

Страница 28: ...m calculated from two edges The measuring modes and their calculation are described below 5 4 1 Edge L rise The edge of the first rising flank from the left Distance in mm measured from the center of...

Страница 29: ...Distance in mm measured from the center of the measuring range of the sensor to the edge 5 4 4 Edge R fall The edge of the first falling flank from the right Distance in mm measured from the center o...

Страница 30: ...rise and Edge R rise Width measurement of the object in mm 5 4 6 Center Width Midpoint between Edge L rise and Edge R rise Output of the distance from the center of an object to the center of the meas...

Страница 31: ...ll and Edge R fall Measurement of a gap between two edges in mm 5 4 8 Center Gap Midpoint between Edge L fall and Edge R fall Output of the distance from the center of a gap to the center of the measu...

Страница 32: ...repeat time changes as well Bright objects Measuring repeat time 5 ms Response time 10 ms Release time 10 ms Dark objects Measuring repeat time 7 ms Response time 14 ms Release time 14 ms 5 7 PRECISI...

Страница 33: ...statistics the median divides a distribution into two halves Compared to the arithmetic mean also known as average the median has the advantage of being more resistant to freak values extremely devia...

Страница 34: ...ce is unknown standard installation right angle to the reference surface or the object is not present the reference surface is to be taught in and shifted automatically the required accuracy of the me...

Страница 35: ...o compensate unevenness of the reference surface and to increase accuracy an even temporary auxiliary plate can be used for this process which is placed on the reference surface during teaching in and...

Страница 36: ...rence surface The inclination angle of the sensor to the reference surface is too large Maximum inclination angle 30 Correct inclination of the sensor The reference surface is too uneven The unevennes...

Страница 37: ...used to suppress undesired backgrounds The surface taught in under TEACH REF is always the basis for this This can be corrected downward with a positive value TEACH REF taught in surface 10 mm THICKNE...

Страница 38: ...larly useful in the inclined state because the borders of the measuring field can be more easily recognized thanks to the rectangle secured measuring field in height and width The maximum width is aut...

Страница 39: ...auenfeld Switzerland The limit of the maximum height and width varies on the rectangle depending on the inclination angle Examples with inclination angle of 30 Examples with inclination angle of 15 Th...

Страница 40: ...250 mm OFFSET 0 mm LIMIT RIGHT LIMIT LEFT Left Right 0 mm Standard installation Angled installation FLEX MOUNT Reference point Reference point 0 mm 54 6 mm 73 0 mm NOTE If the measuring field is alrea...

Страница 41: ...e taught in reference surface is 0 TEACH REF activated If the FLEX MOUNT function is activated the sensor already knows the reference surface the desired offset value can be entered directly Example T...

Страница 42: ...d Switzerland Examples of measuring field limitations 5 9 6 FIELD OF VIEW Set to max values sets all adjustments of the measuring field back to the standard settings maximum measuring field see red ar...

Страница 43: ...TCH POINT The switch point is selected in mm using the arrow keys The point must be within the measuring range 5 10 3 WINDOW P1 Window point 1 for the WINDOW mode is selected in mm using the arrow key...

Страница 44: ...address to prevent the occurrence of bus conflicts No more than 16 sensors may be connected to one bus 5 11 3 DISPLAY LIGHT The background illumination of the display automatically switches off after...

Страница 45: ...nt 0 mm Active high SYSTEM RS 485 BAUDRATE 57600 RS 485 ADDRESS 1 DISPLAY LIGHT OFF after 5 min LANGUAGE English 5 12 SETTINGS The settings entered in the sensor can be applied stored or displayed her...

Страница 46: ...5407 Frauenfeld Switzerland The values are displayed successively it is possible to jump to the next value using SET FUNCTION MEAS TYPE EDGE HEIGHT OBJECT PRECISION FLEX MOUNT LIMIT LEFT LIMIT RIGHT O...

Страница 47: ...int Setting Touch Display RS485 Electrical data Response time 6 5 ms 3 Voltage supply range Vs 15 28 VDC Max supply current without load 150 mA Output circuit Analog und RS485 Output signal 4 20 mA 0...

Страница 48: ...ring frequency in dependence of measuring range width The smaller the range the width of the measuring field the higher is the measuring frequency of the sensor Measurement conditions Background white...

Страница 49: ...en_BA_OxE7_PosCon3D docx 49 64 Baumer Electric AG 17 07 2014 14 21 tof V1 01 ANW_81125407 Frauenfeld Switzerland 6 2 Dimensions Optical axis...

Страница 50: ...the object to be measured Using the multi lens system the reflected light from the laser line is projected onto a matrix A controller calculates from this matrix image the precise position e g of the...

Страница 51: ...e unique functional principle the position of an object in the measuring field is not important when e g the width or the gap is measured 6 3 2 qTarget Because the measuring field is exactly aligned t...

Страница 52: ...tzerland 6 4 Object to be measured 6 4 1 Object size The following requirements must be met so that the sensor can evaluate the object to be detected The width of the object to be measured must not be...

Страница 53: ...a flank which runs from near to far a flank which runs from an object to infinity or nothing The point of the flank which is closer to the sensor is always chosen as the measuring value The border of...

Страница 54: ...es automatically whether it should deliver current or voltage This is done by measuring the electrical load during startup if the load is high impedance 10 kOhm the voltage output is activated otherwi...

Страница 55: ...enfeld Switzerland 6 5 3 Calculating the analog output signal in function Width or Gap Using the following formulas the measuring values in mm can be converted into the analog output signal 4 0 1 16 0...

Страница 56: ...during the waiting period Hold During this time the output is 4mA or 0V To come back to measuring mode the Sync In has to be set from High to Low The Sync in must be at least 5 s at Low to come back...

Страница 57: ...nding on setting 6 5 6 Alarm The alarm output cannot be adjusted and is triggered by the following situations No object in the measuring range No edge in the measuring range Amplitude of the received...

Страница 58: ...sts of a monochrome 128 x 32 Pixel LCD with RGB LED background illumination The sensor can be configured using four keys Operation Four capacitive touch operator interfaces 6 6 2 Dimensioning 6 7 Memo...

Страница 59: ...cores must be insulated Always comply with admissible cable bending radii Prior to electrical connection of the product the system must be disconnected from the power supply In areas where shielded c...

Страница 60: ...nd moisture Water and dirt on the keys can impair their function 8 Error correction and tips 8 1 Effects of deviations in the inclination angle Measuring errors occur if the actual inclination angle o...

Страница 61: ...d region too close to the sensor the displayed measuring values is a shadow of the object fictitious edge Bright object avoid direct reflexes from the transmitter to the receiver Measured zero point n...

Страница 62: ...gher than the minimum defined step minimum step is 2 mm The edges of the object do not meet the requirements of an edge see Section Definition of an edge The edge is outside the measuring field or the...

Страница 63: ...cx 63 64 Baumer Electric AG 17 07 2014 14 21 tof V1 01 ANW_81125407 Frauenfeld Switzerland 9 Change history 27 06 2014 tof Manual released in version 1 0 11 07 2014 tof Version 1 01 Adaptation graphic...

Страница 64: ...en_BA_OxE7_PosCon3D docx 64 64 Baumer Electric AG 17 07 2014 14 21 tof V1 01 ANW_81125407 Frauenfeld Switzerland...

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