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ipf electronic PY740020 Manual

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  • Page 1 Manual for PY740020/21...

  • Page 2: Table Of Contents

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Contents General information ........................4 Concerning the contents of this document ..................4 Intended use ........................... 4 Comments, notes and warnings ..................... 4 Commissioning in 4 steps ......................5 Connection ............................5 Mounting ............................
  • Page 3 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Cleaning the sensors ........................66 Disposal ............................66 Error correction and tips ......................67 Effects of deviations in the inclination angle ................. 67 The dependency of the measuring frequency ................68 Error correction ..........................70 www.ipf.de...

  • Page 4: General Information

    Read these operating instructions carefully and follow the safety instructions! 1.2 Intended use The PY740020/21 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 the light beam is always visible, which makes sensor alignment easier and minimizes installation errors.

  • Page 5: Commissioning In 4 Steps

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Commissioning in 4 steps After the sensor is connected and installed, configure it via the display, selecting either the "Edge", "Width" or "Gap" function and performing the other application-specific settings/measurement type within these functions.

  • Page 6: Mounting

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 2.2 Mounting Standard installation Angled installation In angled installation, the sensor can be mounted In standard installation, the sensor is mounted at a at an angle of up to +/- 30° in relation to the right angle to the reference surface or the object.

  • Page 7: Measuring Mode

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 2.3 Measuring mode Edge: Edge position (basic setting) To perform edge measurement, select FUNCTION "EDGE" in the menu. Within EDGE the edge to be measured is defined in MEASUREMENT TYPE. EDGE L RISE = First rising edge from the left...
  • Page 8 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 WIDTH: Width measurement To perform width measurement, select FUNCTION "WIDTH" in the menu. In WIDTH the desired output is selected in the MEAS TYPE menu. OBJECT WIDTH = Distance between the first rising flank from the left and the first rising flank from the right.
  • Page 9 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 GAP: Gap measurement To perform gap measurement, select FUNCTION "GAP" in the menu. In GAP the measurement type to be activated is defined in the MEAS TYPE menu. GAP WIDTH = Distance between the first falling flank from the left and the first falling edge from the right.

  • Page 10: Optional Settings

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Let’s get started The sensor continously displays the measured value in mm on the display and transmits it via analog output to the PLC. 2.1 Optional settings Measuring field limitation (optional) The measuring field can be changed via the...

  • Page 11: Connection

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Connection ATTENTION! Incorrect supply voltage will destroy the device! ATTENTION! Connection, installation and commissioning may only be performed by qualified personnel. ATTENTION! The IP protection class is valid only if all connections are connected as described in the technical documentation.

  • Page 12: Pin Assignment Nd Connection Diagram

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 3.2 Pin assignment nd connection diagram Color Function Description Pin 1 WH = white Not connected Pin 2 BN = brown + Vs Voltage supply (+15…+28 VDC) Pin 3 GN = green analog Analog output (4…20 mA or 0…10V)

  • Page 13: Installation

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Installation ATTENTION! Connection, installation and commissioning may only be performed by qualified personnel. Protect optical surfaces from moisture and dirt. 4.1 Mounting The sensor has four mounting holes for flexible alignment and mounting. The use of 2 M4x35 screws is recommended for mounting.

  • Page 14: The Reference Surface

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 4.3 The reference surface The measuring level where the object to be detected is located is referred to as the reference surface. It should be as even as possible; there must not be any edges in the measuring field which should not be detected (for exceptions see chapter MEASURING FIELD).

  • Page 15: Sensor Alignment

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 4.4 Sensor alignment As standard the sensor is mounted at a right angle (90°) to the reference surface or the object (standard installation), but it can also be mounted at an angle of up to 30° (angled installation).

  • Page 16: Standard Installation

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 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 is no reference surface). on reference level on object www.ipf.de...
  • Page 17 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 4.5.1 Definition of the measuring field with standard installation The important terms "Left" and "Right" are to be regarded respectively from the viewpoint of the plug. Left Right Blind region Start of...

  • Page 18: Angled Installation

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 4.5.2 Blind area The area up to the start of measuring range Sdc is called the blind area, i.e. the sensor cannot detect any objects there. Nevertheless, placing an object there should be avoided since the resulting shadowing of objects could produce incorrect measuring values.
  • Page 19 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 4.6.1 Definition of the measuring field with angled installation At the maximum allowable 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 viewpoint of the sensor, and in the following figures from the viewpoint of the connector side of the sensor.

  • Page 20: Practical Zero Point Search

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 4.7 Practical zero point search In case of angled installation, the zero point (0mm) oft he K axis shifts out of the center of the red visible laser line. NOTE The "Edge L rise or Edge R rise" mode, for example, can be used as an aid to find the zero point.

  • Page 21: Configuration Via Touch Panel

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Configuration via touch panel 5.1 Overview control elements LEDs Graphic display Touch panel: Four touch-sensitive keys DOWN 5.1.1 Display modes Run mode The sensor is in run mode, the measuring value is displayed in large characters.
  • Page 22 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.1.2 Functions of the individual keys Pressed briefly Pressed >2 s. Back Jump to main menu Up/increase value DOWN Down/decrease value Save new value* *Only in the setting menu when the top line is displayed on a black background (change value) 5.1.3 Locking the touch panel...
  • Page 23 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.1.4 Further key functions Action Reaction Unlock locked touch panel Slide over all keys from left to right Only if touch panel is locked Jump directly to run mode Slide over all keys from right to left Can be used from any menu 5.1.5 LEDs on the sensor...

  • Page 24: Function Tree

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.2 Function tree The menu that can be accessed via the touch panel is shown below. www.ipf.de • Kalver Straße 25 - 27 • 58515 Lüdenscheid Tel +49 2351 9365-0 • Fax +49 2351 9365-19 info@ipf.de •...
  • Page 25 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 www.ipf.de • Kalver Straße 25 - 27 • 58515 Lüdenscheid Tel +49 2351 9365-0 • Fax +49 2351 9365-19 info@ipf.de • ipf electronic gmbh │ │...

  • Page 26: Live Monitor

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.3 LIVE MONITOR The installation conditions can be checked using LIVE MONITOR. The sensor continuously measures the angle and the distance of the optical axis from the measuring level and outputs the values. This makes installation much easier and also points out installation errors.

  • Page 27: Measurement Type

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.4 MEASUREMENT TYPE The detected edges can be output in various ways, for example as simple edges (distance of the desired edge in mm from the center of the measuring range) or also the width or center of an object as a value in mm, calculated from two edges.
  • Page 28 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.4.3 Edge R rise The edge of the first rising flank from the right. Distance in mm measured from the center of the measuring range of the sensor to the edge. Left...
  • Page 29 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.4.5 Object width Distance of the "Edge L rise“ from "Edge R rise“. Width measurement of the object in mm. Left Right Left Right Measured value Measured value in mm in mm 5.4.6 Object center...
  • Page 30 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.4.7 Gap width Distance of the "Edge L fall“ from "Edge R fall". Measurement of a gap between two edges in mm. Left Right Left Right Measured value Measured value in mm in mm 5.4.8 Gap center...

  • Page 31: Edge Height/ Objec Height / Gap Depth

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.5 EDGE HEIGHT/ OBJEC HEIGHT / GAP DEPTH The minimum height of the step of the object to be detected by the sensor as an edge. If the step is smaller than the value entered here, it is not detected as an edge. As standard, this height is set to 4 mm.

  • Page 32: Flex Mount

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.8 FLEX MOUNT The sensor can be installed at an inclination of up to 30°. To adapt the coordinate system of the sensor to this circumstance, the new angle must be saved in the sensor memory.
  • Page 33 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.8.1 "No" deactivates FLEX MOUNT, the sensor can be remounted in standard installation. If FLEX MOUNT is not activated, angle 0° and distance "End of measuring range Sde“ are set. The angle symbol disappears from the display.
  • Page 34 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.8.3 TEACH REF Conditions during TEACH REF The following four conditions must be met during the reference surface teach-in process. If one of the symbols listed below appears on the display, it lights up red. The teach-in process can only begin after elimination of all errors (the display no longer lights up red).
  • Page 35 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.8.4 THICKNESS REF In this menu item, the reference surface is finally defined with due regard to the thickness of the auxiliary plate. Important: The sensor automatically suppresses everything below the defined reference surface. This reference surface displacement will also be used to suppress unwanted backgrounds.

  • Page 36: Measuring Field

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.9 MEASURING FIELD The measuring field can be changed using the "MEASURING FIELD" function. This is particularly useful when e.g. an edge or an undesired object is in the measuring field which should not be detected, or when the sensor is in an angled state and the measuring field should be limited (secured measuring field as a rectangle).
  • Page 37 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 The maximum height and width of the rectangle vary depending on the inclination angle. Examples with an inclination angle of -30° The width increases when the height is reduced Examples with an inclination angle of -15°...
  • Page 38 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.9.2 Manual limitation of the measuring face For full flexibility, every value can also be individually adjusted in the measuring field. • LIMIT L • LIMIT R • OFFSET Standard installation Angled installation (FLEX MOUNT)
  • Page 39 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.9.3 LIMIT L Value measured horizontally from reference point (0 mm), to the left. All edges to the left of this range are suppressed. 5.9.4 LIMIT R Value measured horizontally from reference point (0 mm), to the right.
  • Page 40 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Examples of measuring field limitations: Example with a limited measuring field with AUTO mode (green) and additional limitation LIMIT (blue) 5.9.6 MEASURING FIELD "Set maximum values" resets all adjustments of the measuring field to the standard settings (see red surface above).

  • Page 41: Digital Out

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.10 DIGITAL OUT With Pin 4 (out), the user has a configurable switching output. It can be defined as a single switching point (threshold) or a window. Pin 4 is activated when the value (point or window) is exceeded or not reached (active high or active low depending on the setting).

  • Page 42: System

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.11 SYSTEM 5.11.1 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).

  • Page 43: Setting

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 5.11.4 RESET This resets all settings in sensor parameters to the factory settings. MEASUREMENT TYPE = Edge L rise OBJECT HEIGHT = > 4 mm OBJECT = Light PRECISION = Standard FLEX MOUNT = Not activated (standard installation A = 0°, D = End of measuring range Sde)
  • Page 44 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 The values are displayed successively; it is possible to jump to the next value using SET. FUNCTION MEASUREMENT TYPE EDGE HEIGHT / OBJECT HEIGHT / GAP DEPTH OBJECT PRECISION FLEX MOUNT LIMIT L...

  • Page 45: Function And Definition

    Function and definition 6.1 Data sheet General data PY740020 PY740021 Function Edge position, center, Edge position, center, width, gap. For very width, gap precise measurements Version Edge sensor Edge sensor Function: FLEX MOUNT Function: MEASURING FIELD Measuring range (distance) 100…150 mm 150…250 mm...
  • Page 46 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Standard High Very high Power on indication Green LED Green LED Output indicator Yellow LED / red LED Yellow LED / red LED FLEX MOUNT Distance between 115…150 mm 180…250 mm sensor and reference surface Max.
  • Page 47 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Mechanical data PY740020 PY740021 Width / Height / Length 26 / 74 / 55 mm 26 / 74 / 55 mm Design Rectangular, front view Rectangular, front view Housing material Aluminum Aluminum...
  • Page 48 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Optical properties PY740020 PY740021 Light source AlGaInP laser diode AlGaInP laser diode Wave length 660 nm 656 nm Operating Mode pulsed pulsed Pulse duration Light mode 1.2 ms 1 ms Dark mode 3.6 ms...
  • Page 49 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 6.1.1 Beam divergence Vertical level: δ ⊥ ∥ Horizontal level: δ www.ipf.de ipf electronic gmbh • Kalver Straße 25 - 27 • 58515 Lüdenscheid Tel +49 2351 9365-0 • Fax +49 2351 9365-19 info@ipf.de •...

  • Page 50: Dimensions

    6.2 Dimensions *Optical axis...

  • Page 51: Mode Of Operation

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 6.3 Mode of operation The PY74 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.
  • Page 52 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 6.3.1 Distance-independent measurement Thanks to the unique mode of operation, 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 to the housing reference surfaces at the factory, the beam position in every sensor is exactly in the same spot, which makes planning and sensor replacement very easy.

  • Page 53: Object To Be Measured

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 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 smaller than the "smallest detectable object", and its height (step) must not be smaller than the "smallest detectable step".
  • Page 54 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 6.4.2 Definition of flanks The edges to be detected are defined as rising or falling flanks. The position/selection of flanks is defined as first from the left or first from the right.

  • Page 55: Interfaces And Outputs

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 6.5 Interfaces and outputs The PY740020/21 provide digital and analog outputs, as well as a sync-in. Analog current output, 4 … 20mA or 0 … 10V (switching) Hold-input Switching output push-pull Alarm output push-pull 6.5.1 Analog signal output...
  • Page 56 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Example: A 10m long line has a resistance of approx. 1Ω. The sensor draws a current of 90mA. According to Ohm's law, the following voltage drop occurs at RL1: URL1 = RLine * ICC URL1 = 1Ω...
  • Page 57 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 6.5.2 Calculating the analog output signal The measuring values in mm can be converted into the analog output signal with the following formulas. 6.5.2.1 Sensors with measuring range (Distance) 100…150 mm Fixed scaling: 10 mm/V 6.25 mm/mA...
  • Page 58 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 6.5.3 Sync-In / Trigger The measurement and signal output can be interrupted with the Sync-In input by connecting with high. As long as Sync-In is on high, the sensor delays the next measurement (hold) and reduces the power of the laser beam.
  • Page 59 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Measurement in case of Sync-In low: Every time before a laser pulse is transmitted, the sensor checks the level at Sync-In. If it is low, the sensor immediately begins the next measurement.
  • Page 60 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Sync-In low to high: If the Sync-In level is on high, the sensor always finishes its initiated measurement and then holds off on doing the next measurement. All outputs are held (hold function).
  • Page 61 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Sync-In high to low: To return the sensor to measuring mode, Sync-In must be set from high to low. Sync-In must remain on low for at least 5 µs in order for the sensor to begin measuring again.
  • Page 62 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 6.5.4 Switching output The switching output can be adjusted as a point or a window and the switching points can be set, see chapter DIGITAL OUT. The output is transmitted as a push-pull signal with active high or active low, depending on the setting.

  • Page 63: Touch Panel

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 6.6 Touch panel 6.6.1 Function and design The display consists 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.

  • Page 64: Safety Instructions And Maintenance

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Safety instructions and maintenance 7.1 General safety instructions Intended use This product is a precision device and is used for object detection and the preparation and/or provision of measuring values as electrical quantities for a subsequent system. Unless this product is specially labeled, it may not be used for operation in potentially explosive environments.

  • Page 65: Influence Of Ambient Light

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Class 1: No risk for eyes or Class 2: Do not look into the beam skin The accessible beam is in the visible spectral range (400 nm to 700 nm). It is...

  • Page 66: Cleaning The Sensors

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 ATTENTION! The use of a sensor with a broken front optic or loose or exposed lens can lead to hazardous laser radiation. 7.5 Cleaning the sensors The laser distance sensors do not require any maintenance, except that the front windows must be kept clean.

  • Page 67: Error Correction And Tips

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Error correction and tips 8.1 Effects of deviations in the inclination angle Measuring errors occur if the actual inclination angle of the sensor deviates from its stored angle (tilting angle). When the sensor is mounted at an angle and FLEX MOUNT is inactive, the tilting angle cannot be compensated and measuring errors can occur.

  • Page 68: The Dependency Of The Measuring Frequency

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 8.2 The dependency of the measuring frequency Since the measuring frequency is dependent on various factors, the measuring frequency is specified in the data sheet as a range (for example 125 ... 500 Hz).
  • Page 69 MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 Limited measuring field in max. distance The position of the limited measuring field should be in max. distance to the sensor. AUTO H OBJECT setting The OBJECT setting changes the exposure time. For a fast measurement frequency, this setting should be set to "Bright".

  • Page 70: Error Correction

    MANUAL [PY740020/21] • Subject to alteration! Version: 10.10.2018 8.3 Error correction Error Error correction No function Check connection. Power supply 15…28 VDC between pin 2 (+Vs) and pin 7 (GND) Green LED flashes Short circuit in connecting cable. Check connection.

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