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Baumer Electric AG

04.01.2021 14:26/tof V1.2 ANW_81156398

Frauenfeld, Switzerland

4.3

Measuring field definition

The maximum measuring field and additional important measuring field definitions are described in the
following diagram. The important terms "left" and "right" are to be regarded respectively from the viewpoint of
the connector side of the sensor.

The sensor measures distances within the measuring field.
The sensor level R2 is the reference for 0.

NOTE

For further explanations, see section "Function and definition“ -> "Interfaces and
output" -> "Interfaces and output-> "Analog signal output".

Measuring
field width
right

uri

ran

Measuring
field

Measuring
field width
left

Blind range

Right

Left

uri

Start of measuring range Sdc

0 V / 4 mA

Reference point

function DISTANCE

uts

ide

urin

Measuring field

width

End of measuring range
Sde 10 V / 20 mA

Содержание OM70

Страница 1: ...Operating instructions OM70 multi spot ...

Страница 2: ...ments 15 5 2 Function tree 18 5 3 LIVE MONITOR 19 5 4 MEAS TYPE 21 5 5 OBJECT 22 5 6 PRECISION 22 5 7 FIELD OF VIEW 25 5 8 ANALOG OUT 27 5 9 DIGITAL OUT 29 5 10 SYSTEM 31 5 11 SETTING 33 6 Function and definition 34 6 1 Sensors data sheet 34 6 2 Functional principle 38 6 3 Measuring repetition time and response time 40 6 4 Hysteresis 41 6 5 Object to be measured 43 6 6 Interfaces and outputs 44 6 ...

Страница 3: ...is a supplement to the mounting instructions supplied with each sensor 1 2 Intended use The Baumer OM70 multi spot sensor measures distances to objects It was especially developed for easy handling flexible use and precise measurement 1 3 Safety NOTE Provides helpful operation instructions or other general recommendations ATTENTION Indicates a possibly hazardous situation If it is not avoided mino...

Страница 4: ...e switching output can be configured Connection Installation Application specific settings Optional settings Let s get started Connection Connect the sensor according to the connection diagram A shielded connection cable 8 pole M12 must be used When everything is correctly connected the sensor starts up Key functions ESC Back ESC 2 sec Run mode UP Up increase value DOWN Down decrease value SET OK ...

Страница 5: ...t a right angle to the measurement axis The object must be within the measuring field i e between the start of the measuring range Sdc and the end of the measuring range Sde 2 Measuring field width right Measuring field width left Right Left Blind region Start of measuring range FIELD OF VIEW End of measuring range Reference point DISTANCE function ...

Страница 6: ...ned Distance Distance measurement to an object For a distance measurement the required MEAS TYPE average value maximum or minimum can be selected The front plane of the sensor R2 serves as reference surface zero Avg DIST1 Average value of all measured points Max DIST Distance to the furthest measuring point Min DIST Distance to the closest measuring point Avg DIST Max DIST Min DIST 3a 3 ...

Страница 7: ...ng range Sde can be changed with SCALE OUT 0V or 4mA then apply for the start of measuring range Sdc 10V or 20 mA apply for the point at the end of measuring range Sde Voltage and current output is selected under ANALOG OUT In addition the output curve can be inverted under OUTP SLOPE DIGITAL OUT The sensor is equipped with a switching output that can be configured as a threshold or as a window vi...

Страница 8: ... the greater the signal noise Analog output I_OUT Noise 5 92 uA 1 Sigma 10 m cable and 680 ohm 3 59 uA 1 sigma 2m cable and 680 ohm Analog output U_OUT Noise 4 80 mV 1 Sigma 10m cable and 100 kOhm 3 03 mV 1 Sigma 2m cable and 100 kOhm For high precision applications the use of the RS485 interface is recommended ATTENTION Laser class 1 laser beam according to EN 60825 1 2007 This product can be ope...

Страница 9: ...ite Rx Tx RS 485 receive transmit B Pin 2 BN brown Vs Voltage supply 15 28 VDC Pin 3 GN green analog Analog output 4 20 mA or 0 10V Pin 4 YE yellow out Switching output push pull Pin 5 GY gray alarm Alarm output push pull Pin 6 PK pink Rx Tx RS485 receive transmit A Pin 7 BU blue 0V Ground GND Pin 8 RD red sync in Input synchronization NOTE It is recommended to connect unused inputs to GND 0V ...

Страница 10: ...ce levels The sensor can be aligned with the following levels 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 as references for sensor alignment during installation Left and Right designations are also important 19 mm Level R3 Laser beam Level R1 Level R2 13 mm Tightening torque max 1 2 Nm ATTENTION Connection installatio...

Страница 11: ...f the connector side of the sensor The sensor measures distances within the measuring field The sensor level R2 is the reference for 0 NOTE For further explanations see section Function and definition Interfaces and output Interfaces and output Analog signal output Measuring field width right Measuring range Measuring field Measuring field width left Blind range Right Left Measuring axis Start of ...

Страница 12: ...ind region The region from sensor level R2 up to the start of measuring range Sdc is called the blind region i e the sensor cannot detect any objects there Objects in this area can cause incorrect measuring values Measuring range Measuring field Blind region Object Start of measuring range Sdc End of measuring range Sde R2 ...

Страница 13: ...6398 Frauenfeld Switzerland 4 4 Mounting The sensor is mounted at a right angle 90 to the reference surface or the object when there is no reference surface A reference level and the object must be inside the measuring field see definition of measuring field On reference level on object ...

Страница 14: ...kets fit the mounting holes of the sensor exactly The sensor can be shifted and adjusted inside the mounting hole 4 5 1 Mounting kit for standard installation Order no 11120705 With the mounting bracket for standard installation the sensor can be mounted quickly and easily at a 90 angle to the reference surface Mounting kit 11120705 Contents of this set 90 mounting bracket Threaded plate 2x spheri...

Страница 15: ...he arrow keys Change value If the function mode at the top is displayed on a black background the value of the bottom line can be adjusted using the UP DOWN keys and saved with SET Process successful The display background lights up green Value successfully saved Error The display background lights up red Error during the save process or wrong value entered Setting mode When the sensor is in setti...

Страница 16: ...ng 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 controlled via RS 485 When the sensor is controlled via RS 485 it cannot be operated via the display at the same time the keys are deactivated When the keys are pressed the following text appears on the disp...

Страница 17: ...right 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 Switching output1 active Red Out2 activated No measuring object inside the measuring field Alarm output active Insufficient excess gain Object close to signal gain Not enough light Performing setting OBJECT Bright or Dark Green Supply voltage Sensor ready for opera...

Страница 18: ...en_BA_OM70_multi spot docx 18 60 Baumer Electric AG 04 01 2021 14 26 tof V1 2 ANW_81156398 Frauenfeld Switzerland 5 2 Function tree The menu that can be accessed via the touch panel is shown below ...

Страница 19: ...LIVE MONITOR to object Display example LIVE MONITOR 30 mm Display example LIVE MONITOR 15 21 5mm LIVE MONITOR 15 7 13mm Angle in To object or reference surface Position of object LEFT EDGE RISING Right Left Angle measuring value in Reference surface Reference axis Right Left Object with shortest distance from Start of measuring range Reference surface K L Reference Point Measuring value position i...

Страница 20: ... of the sensor to the reference surface in the measuring field must not be an object The output will be for EDGE LEFT RISING of the object Finding the reference point without a teached reference surface Once an object is within the measuring range the position of LEFT EDGE RISING and the angle of the surface of the object relative to the axis End of measuring range 1 are displayed When moving the ...

Страница 21: ...tances in various ways The measuring value is calculated in mm with analog or RS485 output Distance 5 4 1 Avg DIST Average distance to all measuring points 5 4 2 Max DIST Distance to the furthest measuring point 5 4 3 Min DIST Distance to the nearest measuring point NOTE If the MEAS TYPE is changed SCALE OUT DIGITAL OUT and FIELD OF VIEW are reset to the default setting ...

Страница 22: ...he filter PRECISION The higher precision is set the more measuring speed is reduced response and the release time are increased The measuring frequency is not affected by using this filter PRECISION utilizes a moving median and a moving average filter Moving Median The median of a finite list of numbers can be found by arranging all the observations from lowest value to highest value and picking t...

Страница 23: ... not affected by this filter but rather the response time Moving average The output of the moving average filter is the average of all values found in the array with the defined sample size When a new sample is added the oldest sample is removed Moving filter As visible in the diagram the moving average softens the output In contrast to the median filter values at the output can be values that hav...

Страница 24: ...IGH the distance has to be stable for 2 0 samples for the output to show the current value In precision mode very high the distance has to be stable for 2 16 samples for the output to show the current value Example Calculation of the response time with measuring frequency 500 Hz PRECISION High 1 500 Hz 0 002 s Median 7 2 Formula Samples 2 4 Average 16 Response time 0 002 4 16 0 04 s 40 ms ...

Страница 25: ...er beam does not change 5 7 1 Manual limitation of the measuring field For full flexibility every value in the measuring field can be individually adjusted The modified measuring field need not be symmetrical Even a single limit e g LIMIT LEFT can be restricted LIMIT LEFT LIMIT RIGHT LIMIT RIGHT mm LIMIT LEFT mm Left Right 0 mm Reference line Middle of measuring field NOTE The LIVE MONITOR mode ca...

Страница 26: ...field in mm measured from the reference point 5 7 3 LIMIT RIGHT Limitation of the right side of the measuring field in mm measured from the reference point 5 7 4 FIELD OF VIEW Set maximum values resets all adjustments of the measuring field to the standard settings maximum measuring field NOTE The measuring field width Distance LIMIT LEFT to LIMIT RIGHT must be at least 2 mm ...

Страница 27: ...must be greater than 5 of the end of measuring range value 5 8 1 1 DIST NEAR The value in mm at which the sensor should have the minimum analog output value of 0V or 4 mA is specified here DIST NEAR Start of measuring range DIST NEAR End of measuring range minimum window size 5 8 1 2 DIST FAR The value in mm at which the sensor should have the maximum analog output value of 10V or 20 mA is specifi...

Страница 28: ...t Current Voltage 5 8 3 CHARACTERISTIC The analog characteristic curve can be inverted With a positive output slope the signal increases with an increasing measuring value For the negative slope the output signal decreases with an increasing measuring value Example SCALE OUT with DISTANCE function The sensor should display 4 mA at a distance of 110 mm and 20 mA at a distance of 140 mm Set Dist NEA...

Страница 29: ...be larger than Minimal switching window according to the sensors data sheet 5 9 1 DIGITAL OUT Whether Pin 4 is to be operated as a threshold with a switch point or as a window window function is defined here 5 9 2 SWITCH POINT The switch point is selected in mm using the arrow keys The point must lie within the measuring range between start of measuring range Sdc1 and end of measuring range Sde1 2...

Страница 30: ...range Sdc1 2x hysteresis1 5 9 4 WINDOW P2 Window point 2 for the WINDOW mode is selected in mm using the arrow keys The point must lie within the measuring range less than end of measuring range Sde1 2x hysteresis1 5 9 5 LEVEL The output level can be inverted with active high or active low here 1 According to data sheet chapter 6 1 NOTE If MEAS TYPE is changed the switching output settings are dis...

Страница 31: ...e Two sensors in the same network must not have the same number to prevent the occurrence of bus conflicts No more than 32 sensors may be connected to one bus 5 10 3 DISPLAY LIGHT The display background illumination automatically switches off after the set time or remains switched on The countdown begins as soon as the keys for an operation are locked key symbol OFF 5 min OFF 10min OFF 20min Alway...

Страница 32: ...ht PRECISION Standard SCALE OUT Max values FIELD OF VIEW Max values DIGITAL OUT Threshold end of measuring range Sde active high RS485 lock 1 activated RS485 BAUD RATE 57600 RS485 BAUD ADR 001 ANALOG OUT Current DISPLAY LIGHT OFF after 5min LANGUAGE English NOTE With Reset the current configuration in the sensor is overwritten However all stored settings are deleted from the sensor memory The fact...

Страница 33: ...E The settings entered in the sensor can be stored here Three storage spaces are available Setting 1 Setting 2 Setting 3 5 11 3 SHOW SHOW displays the setting values SHOW ACTIVE Displays the active settings SHOW SETTING 1 3 Displays the settings stored in storage spaces 1 3 The values are displayed successively it is possible to jump to the next value using DOWN MEAS TYPE OBJECT PRECISION SCALE OU...

Страница 34: ...46 With filter Precision very high Repeatability AVG DIST max measuring field width 8 μm345 Without filter 4 μm3456 Mit Filter Präzision hoch 2 μm3456 With filter Precision very high 10 40 μm345 Without filter 5 25 μm3456 With filter Precision high 4 20 μm3456 With filter Precision very high Repeatability MIN MAX DIST 16 μm34 Without filter 8 μm346 With filter Precision high 4 μm346 With filter Pr...

Страница 35: ...ass Connection method Plug M12 8 pole Plug M12 8 pole Weight 130 g 130 g Ambient conditions OM70 multi spot 11155463 OM70 11155463 OM70 multi spot 11112069 OM70 11112069 Ambient light immunity 35 kLux 35 kLux Operating temperature 10 50 C 10 50 C Storage temperature 25 75 C 25 75 C Protection class IP 67 IP 67 Vibration resistance sinusoidal IEC 60068 2 6 2008 7 5mm p p for f 2 8Hz 2g for f 8 200H...

Страница 36: ...s Total emitted pulse power 3 mW 10 mW Beam shape elliptical focused to laser line elliptical focused to laser line Focus distance df 125 mm 350 mm Beam size exit window perpendicular parallel 2 5 mm 7 5 mm 2 2 mm 5 8 mm Beam size focus perpendicular parallel 0 1 mm L 73 mm 0 4 mm L 65 mm Beam divergence perpendicular parallel 16 0 mrad 30 2 4 8 mrad 9 4 Nominal ocular hazard distance NOHD 1 NA 1 ...

Страница 37: ...en_BA_OM70_multi spot docx 37 60 Baumer Electric AG 04 01 2021 14 26 tof V1 2 ANW_81156398 Frauenfeld Switzerland 6 1 2 Dimensions Optical axis ...

Страница 38: ...ged into a line and projected to the surface of the object to be measured Using the multi lens system the reflected light from this laser line is projected onto a matrix From this matrix image a controller calculates the distance to every individual measuring point The measuring value is calculated in accordance with the selected modus Thanks to the factory calibration of the sensors the output of...

Страница 39: ... 14 26 tof V1 2 ANW_81156398 Frauenfeld Switzerland 6 2 1 qTarget The measuring field is aligned with the housing reference surfaces at the factory The beam position in every sensor is in exactly the same spot which makes planning and sensor replacement very easy ...

Страница 40: ...sition Typically it is about 2 3x measuring repetition time When the position of the object has changed during the exposure time the response time is the fastest ie about the 2x measuring repetition time At the worst case if the object position has changed shortly after an exposure time the response time is 3x measuring repetition time 6 3 3 Response time when using Sync In If the Sync In input is...

Страница 41: ... switch on and switch off point It is defined as a percentage of the sensing distance 𝑆𝑑 Without hysteresis 𝐻 objects could at the limit of the switching points lead to ceaseless on off switching or bouncing 6 4 2 Calculating the hysteresis The absolute hysteresis 𝐻 can be calculated by taking the Hysteresis ℎ value from the data sheet 𝐻 𝑆𝑑 ℎ 𝑆𝑑 𝑆𝑤𝑖𝑡𝑐ℎ𝑖𝑛𝑔 𝑝𝑜𝑖𝑛𝑡 Sd Sde Switching point SWITCH POINT ...

Страница 42: ...98 Frauenfeld Switzerland 6 4 3 Characteristics of the switching output at SWITCH POINT 6 4 4 Characteristics of the switching output at WINDOW WINDOW High Low Hystereis Measuring value SWITCH POINT Output Level High Low Hystersis Measuring value WINDOW P2 Output Level Hysteresis WINDOW P1 ...

Страница 43: ...en incident and reflected light Definition of objects White object Approx 90 reflectivity Black object Approx 6 reflectivity Bright object 18 reflectivity Dark object 6 18 reflectivity 6 5 3 Standard object The technical data for sensors in the data sheet refers to measurements with a Baumer standard object This standard object is precisely defined in size shape and color making multiple measureme...

Страница 44: ...ent or voltage output The sensor has an analog output that can send a current or voltage signal through the same pin The desired CURRENT or VOLTAGE output function can be activated in the SYSTEM ANALOG sensor settings or with an RS485 command Analog output with DISTANCE function NOTE When an object moves laterally out of the measuring field the last valid output value is retained until an object i...

Страница 45: ...ALE OUT the new settings for Current Start of measuring range Sdc and Current End of measuring range Sde must be used 𝑴𝒆𝒂𝒔𝒖𝒓𝒊𝒏𝒈 𝒗𝒂𝒍𝒖𝒆 𝒊𝒏 𝑽 𝑴𝒆𝒂𝒔𝒖𝒓𝒊𝒏𝒈 𝒗𝒂𝒍𝒖𝒆 𝒊𝒏 𝒎𝒎 𝑆𝑑𝑐 𝑆𝑑𝑒 𝑆𝑑𝑐 10𝑉 𝑴𝒆𝒂𝒔𝒖𝒓𝒊𝒏𝒈 𝒗𝒂𝒍𝒖𝒆 𝒊𝒏 𝒎𝑨 16 𝑚𝐴 𝑴𝒆𝒂𝒔𝒖𝒓𝒊𝒏𝒈 𝒗𝒂𝒍𝒖𝒆 𝒊𝒏 𝒎𝒎 𝑆𝑑𝑐 𝑆𝑑𝑒 𝑆𝑑𝑐 4 𝑚𝐴 𝑴𝒆𝒂𝒔𝒖𝒓𝒊𝒏𝒈 𝒗𝒂𝒍𝒖𝒆 𝒊𝒏 𝒎𝒎 𝑴𝒆𝒂𝒔𝒖𝒓𝒊𝒏𝒈 𝒗𝒂𝒍𝒖𝒆 𝒊𝒏 𝒎𝑨 𝑆𝑑𝑒 𝑆𝑑𝑐 20 𝑚𝐴 𝑆𝑑𝑐 4 𝑚𝐴 𝑆𝑑𝑒 16 𝑚𝐴 𝑴𝒆𝒂𝒔𝒖𝒓𝒊𝒏𝒈 𝒗𝒂𝒍𝒖𝒆 𝒊𝒏 𝒎𝒎 𝑴𝒆𝒂𝒔𝒖𝒓𝒊𝒏𝒈 𝒗𝒂𝒍𝒖𝒆 𝒊𝒏 𝑽 𝑆𝑑𝑒 𝑆𝑑𝑐 10 𝑉 𝑆𝑑𝑐 10 𝑉 DISTANCE funct...

Страница 46: ...id state during Hold To come back to measuring mode the Sync In has to be set from High to Low The Sync in must be at least 5μs at Low to come back to the measuring mode Sync In Level Measurement Sync In low 0 2 5 V Run Sync In high 8 V UB operating voltage Hold Example Mutual interference Only the laser beam of Sensor1 may be in the measuring field of Sensor1 The laser beam of Sensor2 must be out...

Страница 47: ...w The sensor checks the level of the Sync In each time before it sends out the laser pulse If it is low the sensor will immediately begin the next measurement High Low t Sync In t Laser t Reading camera Calculations Set outputs t Analog Output Start measuring cycle 1 measuring cycle 1ms or 3ms Object white black Low High Low High Low High ...

Страница 48: ...c In Low to High If the Synch In level is High the sensor completes the actual measurement but do not start the next measurement All outputs are held Hold function Low High t Sync In t Laser t Reading camera Calculations Set outputs t Analog Output 1ms or 3ms Object white black Hold function Low High Low High Low High ...

Страница 49: ...g the sensor back into the measuring mode The Sync In must be at least 5μs set to low level so that the sensor starts to measure For this first measuring cycle the response time will be 5μs longer High Low t Sync In t Laser t Reading camera Calculations Set outputs t Analog Output 5µs 1ms or 3ms Object white black Measuring cycle 2 Measuring cycle 1 Low High Low High Low High ...

Страница 50: ...utside the measuring field The alarm output cannot be adjusted and is triggered by the following situations No object in the measuring field Insufficient signal gain e g with soiling or or incorrect OBJECT setting The alarm signal is output as a push pull signal active high 6 6 5 Interface RS 485 No more than 32 sensors may be connected to one bus during operation with RS 485 When the RS 485 inter...

Страница 51: ...6398 Frauenfeld Switzerland 6 6 6 Response of outputs If no object is within the measurement range the sensor will hold the last valid signal The alarm output is high during this time Object Object Measuring Range Conveyer Object Analogue output Alarm output Direction of movement Object ...

Страница 52: ...ay consists of a monochrome 128 x 32 pixel LCD with RGB LED background illumination The sensor can be configured using four capacitive touch operator interfaces 6 7 2 Dimensioning 6 8 Memory All changes made in the sensor are saved in nonvolatile permanent memory and are even retained after a power outage 24 7 7 10 20 5 4 5 1 31 5 3 5 Capacitive operator interfaces ...

Страница 53: ... measure for the unevenness of the surface All measuring points within the preset field of view are taken into consideration Remember The standard deviation is a measure for the dispersion of the height values of all measured profile points in mm It can only be used on a plane that is either vertical with respect to the sensor or is parallel to the Flex Mount reference The plane must cover the ent...

Страница 54: ...tings and mechanical mounting accessories intended for this product Unused outputs must not be wired In cable versions with unused cores these 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 cables are mandatory they must be used as protection agains...

Страница 55: ... short term exposure duration to 0 25 s is harmless to the eye Random short term impacts to 0 25 s do not damage the eye because the blink reflex can automatically adequately protect the eye against longer irradiation Class 2 lasers may be used without any additional protection if it is ensured that for an application no intentional look longer than 0 25 s is required or for example by drug exposu...

Страница 56: ...these safety instructions may result in hazardous radiation exposure 7 5 Cleaning the sensors The laser distance sensors do not require any maintenance except that the front windows must be kept clean Dust and fingerprints can impair sensor function It is normally sufficient to wipe the windows with a clean soft lens cleaning cloth Alcohol or soapy water can be used in case of severe soiling The d...

Страница 57: ...ring procedure 3 Min DIST measurement type for output of minimum distance to the object 8 1 2 Measurement of the average distance value of a dark object digital signal at 130 mm distance 1 Connection In accordance with connection diagram 2 Installation The sensor is installed so the object is inside the measuring range during the measuring procedure 3 Avg DIST measurement type for average value of...

Страница 58: ...via RS 485 and can only be re enabled with a command via RS 485 Touch panel does not react Clean panel The panel is dirty or wet which makes it harder to press the keys Sensor does not provide the expected measuring results The object is not in the measuring range Bright object avoid direct reflexes from the transmitter to the receiver The sensor does not capture all objects within the measuring f...

Страница 59: ... about the working principle of the filter PREZISION 31 05 2016 tof New sensor type integrated Chapter 6 1 updated 15 06 2016 tof Chapter beam divergence updated 19 09 2016 tof V1 2 2 decimal display places instead of 1 new chapter hysteresis 17 01 2017 tof Measuring values repeat accuracy for 100 150mm types implemented 19 05 2017 tof Measuring range distance error in chapter 6 1 corrected 12 10 ...

Страница 60: ...en_BA_OM70_multi spot docx 60 60 Baumer Electric AG 04 01 2021 14 26 tof V1 2 ANW_81156398 Frauenfeld Switzerland ...

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