Baumer OM20 IO-Link Operating Manual
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Baumer OM20 IO-Link Operating Manual

Laser distance sensor
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Operating Manual
OM20/OM30 IO-Link
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Laser distance sensor

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Summary of Contents for Baumer OM20 IO-Link

  • Page 1 Operating Manual OM20/OM30 IO-Link EN-US Laser distance sensor...

  • Page 2: Table Of Contents

    List of contents Baumer List of contents 1 About this document........................... 1.1 Purpose ..............................1.2 Warnings in this manual ........................1.3 Labels in this manual ..........................1.4 Liability limitation........................... 1.5 Name plate ............................1.6 Scope of delivery ..........................2 Safety................................
  • Page 3 Baumer List of contents 8.3 Zero position ............................28 8.4 Measurement range..........................28 8.5 Invalid Value Handling .......................... 29 8.6 Switching points............................ 31 8.7 Polarity..............................32 8.8 Hysteresis ............................. 33 8.9 Function of the output ........................... 35 8.10 Analog measurement field ........................36 8.11 Function of the Teach button ........................

  • Page 4: About This Document

    In addition, the local occupational health and safety regulations and general safety regulations apply. The illustrations in this manual are examples only. Deviations are at the discretion of Baumer at all times. Warnings in this manual Warnings draw attention to injury or material damage.

  • Page 5: Labels In This Manual

    Baumer About this document Labels in this manual Identifier Example Dialog element Indicates dialog elements. Click the OK button. Unique name Indicates the names of products, Internet Explorer is not supported files, etc. in any version. Indicates entries. Enter the following IP address: Code 192.168.0.250...
  • Page 6 About this document Baumer In addition, you can find the following information, among other things, in digital format at www.baumer.com: Operating manual Data sheet 3D CAD drawing Quickstart Dimensional drawing Connection diagram & pin assignment IODD file Certificates (EU conformity declaration, etc.)

  • Page 7: Safety

    Do not dispose of electrical and electronic equipment in household waste. The product contains valuable raw materials for recycling, which is why the old prod- uct must be returned to an authorised collecting point for correct disposal/recy- cling. For further information see www.baumer.com. V2 | OM20/OM30 IO-Link Operating Manual...

  • Page 8: Laser

    Safety Baumer Laser CLASS 1 LASER PRODUCT IEC 60825-1/2014 Complies with 21 CFR 1040.10 and 1040.11 except for conformance with IEC 60825-1 Ed. 3., as described in Laser Notice No. 56, dated May 8, 2019 Products with the following type codes are specified according to laser class 1: OM20-xxxxx.HH.xxx...

  • Page 9: Description

    Baumer Description Description Structure OM20 OM30 Ill. 2: Structure OM20/OM30 Sensor LEDs Front panel Teach button M8 plug, 4-pin Imprint of laser information & name plate General functionality The sensor measures the distance to an object to be measured by angle calculation (triangula- tion principle).

  • Page 10: Measurement Field

    Description Baumer Measurement field INFO The data for your sensor version can be found in the data sheet. Zero position Measuring range Start of the measuring range End of the measuring range Measuring range (MR) Region in which the measurement object must be present for the sensor to deliver reliable measurement results.

  • Page 11: Operating And Display Elements

    Baumer Description Operating and display elements 3.4.1 Sensor LEDs Des. Illuminated Blinking POWER Green Sensor ready for operation OUTPUT Yellow No valid signal within the measurement Critical signal quality range In the factory settings, the OUTPUT (pin 4), and thus also the yellow LED, follows the function of the alarm output.

  • Page 12: Ill. 3 Analog Measurement Field (Inverted)

    Description Baumer NOTICE The characteristic curve of the analog output can be inverted by the teaching process (negative gradient). To do this, teach in the maximum distance for P1 and the minimum distance for P2. Analog measurement field Ill. 3: Analog measurement field (inverted) Teaching the zero position a) Press the teach button briefly.

  • Page 13: Analog Measurement Performance

    Baumer Description Analog measurement performance The sensor's analog output features 12-bit resolution. Such resolution may limit the precision of the analog current or voltage values. For this reason, the analog measuring field should be re- stricted to the measuring range relevant for the application. This can be done via the teach but- ton or the IO-Link interface.

  • Page 14: Io-Link

    Description Baumer The following statements can be derived from the graph: No containment of the analog output (i.e. Sr = 50 mm - gray characteristic line) limits the precision at the analog output to 16 µm. However, if the analog measuring range is narrowed down to 3 mm or smaller (dark blue characteristic curve), the best possible precision of the sensor can be achieved at any dis- tance in the measuring range.
  • Page 15 Baumer Description IO-Link process data: Output Sub- Bit- Index Offset Denotation Data type Description Find me Boolean Switch the laser on/off. Laser ON/ OFF Boolean Localize the sensor by activating the LEDs. IO-Link process data: input Sub- Bit- Index Offset...
  • Page 16 Description Baumer Parameter Parameters are acyclic data (transmission occurs as needed). The following parameters are available for the sensor: Filters for smoothing the signal characteristics Triggers for recording the measured value Processing of invalid measured values Switching points Polarity (output level of the switching output)

  • Page 17: Dimensional Drawing

    Baumer Description Dimensional drawing 34,5 31,6 Teach-in Ill. 4: Dimensional drawing OM20 40,3 13,6 Teach-in Ill. 5: Dimensional drawing OM30 V2 | OM20/OM30 IO-Link Operating Manual...

  • Page 18: Transport And Storage

    Transport and storage Baumer Transport and storage Transport NOTICE Material damage due to improper transport. a) Practice the greatest diligence when unloading the delivery packages and when transporting them within the company. b) Note the information and symbols on the packaging.

  • Page 19: Installation Instructions

    Baumer Installation instructions Installation instructions INFO You can find the suitable installation accessories on the Baumer website. Go to www.baumer.com for this. Then enter the item number of the sensor in the search field of the website. For measurement objects with shiny surfaces: Tilt the sensor 6 to 10° to the side so that the light directly reflected by the surface does not hit the receiver of the sensor.
  • Page 20 Installation instructions Baumer û ü Mounting for measuring objects with colored edges / different reflective characteristics of the surface: Align the sensor parallel to the colored edge to prevent measurement errors. ü û Mounting near strong ambient light: Prevent the ambient light from entering the detection range of the receiver.
  • Page 21 Baumer Installation instructions ü û Mounting for round measurement objects: Align the sensor on the same axis as the measurement object to prevent reflections. V2 | OM20/OM30 IO-Link Operating Manual...

  • Page 22: Electrical Installation

    Electrical installation Baumer Electrical installation Pin assignment analog teach in analog output / IO-Link Connection diagram BN (1) BN – Brown WH (2) analog Analog WH – White BK (4) Push-Pull output / IO-Link BU – Blue BU (3) BK – Black...

  • Page 23: Commissioning

    Baumer Commissioning Commissioning Factory settings Adjustable parameters Factory setting of the sensor Operation Mode Precision Filter Highest Sampling Mode Free Running Measurement Range Zero Position 0 mm Distance Near Distance Far Invalid Value Handling Value after Dropout Near Hold Time...

  • Page 24: Functions

    Functions Baumer Functions Filter With the Filter function, the noise can be reduced and the repeatability increased. The number of measured values per string of numbers (filter length) can be adjusted as follows via the parameter settings: Option 1: Select the required filter length from predefined filter lengths.

  • Page 25: Ill. 7 Moving Average Filter

    Baumer Functions Moving Average filter This filter smoothes the signal course by calculating the average of a specified number of mea- sured values in a string of numbers. Due to average calculation, a change in distance becomes increasingly visible. Time Ill. 7: Moving Average filter...
  • Page 26 Functions Baumer Option 2: Enter the filter length as a numerical value If the predefined filter lengths are not suitable, an individual filter length can be entered for the Moving Average and Moving Median filters. Especially when it comes to applications without dy- namic changes in distances, such as the verification of the position of an object, a greater filter length can improve the performance of the sensor.

  • Page 27: Trigger Mode

    Baumer Functions Trigger mode The Trigger mode function controls the acquisition of the measured values and thus also the measurement frequency. The parameter settings offer you a choice between the Free Running and Interval trigger modes. Free Running trigger mode The sensor measures constantly and at the highest possible measurement frequency.

  • Page 28: Zero Position

    Parameter name Values Description Zero Position.Zero Position Zero position Baumer commands – Zero Position Teach Teach in the current position as the new zero position. Measurement range With the Measurement range function, the limits of the measurement range can be set so that the active measurement range is limited to a partial range of the maximum measurement range of the sensor.

  • Page 29: Invalid Value Handling

    Baumer Functions Invalid Value Handling The Invalid Value Handling function defines the behavior of the sensor when the sensor records an invalid measured value. This function can be used, for example, to mask recurring reflections of machine parts or reflections of measurement objects in a dynamic application. Invalid mea-...
  • Page 30 Functions Baumer Digital output Analog output 2147483644 Hold Time Hold Time Signal quality Ill. 9: Invalid Value Handling – example 2 IO-Link parameter: Invalid Value Handling Parameter name Values Description AnalogSetting.Value after Type of Invalid Value Handling: Last valid, Dropout ▪ Last valid: Last valid measured value near, far ▪...

  • Page 31: Switching Points

    Baumer Functions Switching points Via the Switching points function, distances (switching points) are defined at which the switching output is to be activated. The function can be configured via the following parameters: Select measurement mode (point mode or window mode).

  • Page 32: Polarity

    Functions Baumer Polarity With the Polarity function, you can define the behavior of the switching outputs regarding the output level. With parameterization you can choose between Active High and Active Low. Active High Point mode Window mode Ill. 12: Polarity – Active High Point mode: The switching output is activated as soon as the defined distance SP1 is not reached.

  • Page 33: Hysteresis

    The Hysteresis prevents unwanted switching of the switching output. The parameterized value of the hysteresis is the difference in distance between the points at which the switching output is activated and deactivated. Baumer recommends always setting the hysteresis not equal to 0. Positive hysteresis...

  • Page 34: Ill. 16 Behavior Of The Switching Output In Point Mode (Positive Hysteresis)

    Functions Baumer ▪ This results in a left aligned hysteresis. When the object to be measured nears the switch- ing points from outside of the window, the switching output remains deactivated until a dis- tance of 201.5 mm and 298.5 mm. When the object to be measured nears the switching points from the inside of the window, the switching output remains active until 200 mm and...

  • Page 35: Function Of The Output

    Baumer Functions Window mode (switching output behavior) Positive hysteresis: Hysteresis Switching point P1 Window Switching point P2 Hysteresis High Active high level Level Ill. 18: Behavior of the switching output in window mode (positive hysteresis) Negative hysteresis: Switching point P1 Hysteresis...

  • Page 36: Analog Measurement Field

    Functions Baumer IO-Link parameter: Output Parameter name Values Description DI/DO Settings.OUT 1 Mode Select the function of the output. SSC1 - Alarm, SSC1 - Switch State 8.10 Analog measurement field With the Analog measurement field function, you can define the resolution of the analog output by moving the limits of the analog measurement field.
  • Page 37 Teach in max. limit of the analog mea- Output Scale at Analog Max surement range (alternatively to the Teach button) Baumer commands – Output Set the analog measurement range to the Scale is set to the possible max. max. possible limits...

  • Page 38: Function Of The Teach Button

    Functions Baumer 8.11 Function of the Teach button With the Teach button function (Local User Interface), you have the option of specifying the mode of the Teach button. You have a choice between the Xpert (factory setting) and Xpress modes. The mode is selected via the IO-Link.

  • Page 39: Diagnostic Data

    Baumer Diagnostic data Diagnostic data The diagnostic data is used for monitoring the status of the device. You can monitor both the momentary status (via parameters) as well as the development over time (via a histogram func- tion). You have the option of resetting diagnostic data.

  • Page 40: Response Delay

    Diagnostic data Baumer Response delay The response delay is equivalent to the time elapsed between the triggering of the measure- ment (internal signal) and the change in the measured value at the output. The duration of the response delay depends on the exposure time. The sensor automatically adjusts its exposure time to the object to be measured in order to always receive an optimum light quantity and thus achieve a sufficient exposure reserve.

  • Page 41: Signal Quality

    Baumer Diagnostic data Signal quality The signal quality serves as an indication of the reliability of the measurement. IO-Link diagnostic data: Signal quality Name Description Exposure Reserve.Quality Output of the signal quality. Level ▪ 0 = Valid signal ▪ 1 = Weak signal Low signal quality can result in greater measured value er- rors.

  • Page 42: Histogram Function

    Diagnostic data Baumer Histogram function The histogram function counts the appearance of values within defined intervals (bins). The number of values refers to the followings key data: Distance Exposure reserve Distance With each cycle, a measured value (distance) is recorded. The following information is avail-...
  • Page 43 Baumer Diagnostic data IO-Link diagnostic data: Distance histogram function Name Description Baumer commands – Resetting the distance histogram Distance Resetable Histogram Reset Distance Resetable Histogram.Unit Unit Distance Resetable Histogram.Range Start Start of valid range Distance Resetable Histogram.Range End End of valid range Distance Resetable Histogram.Nbr of Bins...
  • Page 44 Baumer Example of a recorded exposure reserve histogram: IO-Link diagnostic data: Exposure reserve histogram function Name Description Baumer commands – Resetting the exposure reserve his- Exposure Reserve Resetable Histogram Reset togram Exposure Reserve Resetable Histogram.Range Start Start of valid range Exposure Reserve Resetable Histogram.Range End...

  • Page 45: Maintenance

    Baumer Maintenance Maintenance The sensor is maintenance-free. No special maintenance is required. Regular cleaning and reg- ular checking of the plug connections are recommended. 10.1 Cleaning the sensor Exterior cleaning When cleaning the exterior of the sensor, make sure to use cleaning agents that do not affect the housing surface and seals.

  • Page 46: Troubleshooting

    Troubleshooting Baumer Troubleshooting Error: Sensor does not start even though the power supply is connected. The LEDs of the sensor are switched off. Possible cause: The power supply is interrupted. A short-circuit is present. Remedy: Check the electrical connection of the sensor according to the connection diagram.

  • Page 47: Annex

    Baumer Annex Annex 12.1 Analog output resolution - diagrams The following diagrams show the resolution of the analog output in relation to the measuring distance for the different sensor types. The type code of the sensor shown is indicated in the caption.

  • Page 48: Ill. 25 Characteristic Curves For Om30-X0100.Xx.yxx

    Annex Baumer Ill. 25: Characteristic curves for OM30-x0100.xx.Yxx Ill. 26: Characteristic curves for OM30-x0350.xx.Yxx Operating Manual OM20/OM30 IO-Link | V2...

  • Page 49: Ill. 27 Characteristic Curves For Om30-X0550.Xx.yxx

    Baumer Annex Ill. 27: Characteristic curves for OM30-x0550.xx.Yxx V2 | OM20/OM30 IO-Link Operating Manual...
  • Page 50 List of illustrations Baumer List of illustrations Ill. 1 Name plate ............................Ill. 2 Structure OM20/OM30........................Ill. 3 Analog measurement field (inverted)....................12 Ill. 4 Dimensional drawing OM20........................ 17 Ill. 5 Dimensional drawing OM30........................ 17 Ill. 6 Moving Median filter..........................24 Ill.
  • Page 52 Baumer Worldwide Belgium Brazil Canada Baumer SA/NV Baumer do Brasil Ltda Baumer Inc. BE-2260 Westerlo BR-13208-120 Jundiaí, São Paulo CA-Burlington, ON L7M 4B9 Phone +32 14 57 462 0 Phone +55 11 4523-5120 Phone +1 905 335 8444 China France Denmark Baumer (China) Co., Ltd.

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