1. Manuals
  2. Brands
  3. ipf electronic Manuals
  4. Security Sensors
  5. PT740020/21
  6. Manual

ipf electronic PT740020/21 Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Manual for PT740020/21

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the PT740020/21 and is the answer not in the manual?

Questions and answers

Related Manuals for ipf electronic PT740020/21

Summary of Contents for ipf electronic PT740020/21

  • Page 1 Manual for PT740020/21...

  • Page 2: Table Of Contents

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Contents General information ........................3 Concerning the contents of this document ..................3 Intended use ........................... 3 Safety warnings ..........................3 Commissioning ..........................4 Connection ............................ 8 Connection cable ..........................8 Pin assignment and connection diagram ..................9 Installation ...........................

  • Page 3: General Information

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 General information 1.1 Concerning the contents of this document This manual contains information about the installation and initial setup of the ipf PT740020/21 light section sensors. It is a supplement to the mounting instructions supplied with each sensor.

  • Page 4: Commissioning

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Commissioning After the sensor is connected and installed, configure it via the display and perform the other application- specific settings/measurement type within these functions. The sensor is then ready for operation and outputs the measuring value in mm to the screen.
  • Page 5 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Installation Left Right Reference point DISTANCE function Blind region FIELD OF VIEW Start of measuring range Measuring field width left Measuring field width right The sensor is aligned at a right angle to the measurement axis.
  • Page 6 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Application specific settings 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).
  • Page 7 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Optional settings OBJECT Selection of bright or dark objects to optimize the measurement results. PRECISION To achieve better precision and resolution, it is possible to alternate between Standard, High and Very High by filtering the output values.

  • Page 8: Connection

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 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 9: Pin Assignment And Connection Diagram

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 3.2 Pin assignment and connection diagram Color Function Description Pin 1 WH = white n.c. 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 10: Installation

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 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 11: Measuring Field Definition

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 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.
  • Page 12 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 4.3.1 Blind 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.

  • Page 13: Mounting

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 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).

  • Page 14: Installation Accessories

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 4.5 Installation accessories To ensure optimal mounting, various mounting brackets are available an as accessory. These brackets fit the mounting holes of the sensor exactly. The sensor can be shifted and adjusted inside the mounting hole.

  • Page 15: Configuration

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Configuration 5.1 Overview of control elements LEDs Graphical display Avg DIST 112.42 mm Touch panel: Four touch-sensitive keys DOWN 5.1.1 Display modes Run mode 112.42 mm The sensor is in run mode, the measuring value is displayed in large characters.
  • Page 16 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 5.1.2 Functions of the individual keys Pressed briefly Pressed >2 s. Back Jump to Run mode 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...
  • Page 17 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 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...

  • Page 18: Function Tree

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 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 19: Live Monitor

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 5.3 LIVE MONITOR The installation conditions can be checked using LIVE MONITOR. The sensor outputs the angle and edge position to the object with the smallest distance to the sensor. LIVE MONITOR 15.7°...
  • Page 20 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 “End of measuring range” of the sensor represents the standard reference for angle measurement. • • Displayed for the edge position are always the values for the object or the reference surface with the smallest distance to “Start of measuring range”...

  • Page 21: Meas Type

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 5.4 MEAS TYPE The PT74 can output measured distances in various ways. The measuring value is calculated in mm with analog output. NOTE If the MEAS TYPE is changed, SCALE OUT, DIGITAL OUT and FIELD OF VIEW are reset to the default setting.

  • Page 22: Object

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 5.5 OBJECT To improve sensitivity to dark objects, the exposure time can be increased. This also changes the measuring repetition time. 5.5.1 Object: Bright (Reflectivity > 18%, white-gray) Exposure time (Pulse Short duration) 5.5.2...
  • Page 23 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 The diagram shows the effects of the median (sample size 5). The filter is used to suppress errors. The output changes after a defined number of samples (sample size/2). The measurement frequency is not affected by this filter, but rather the response time.
  • Page 24 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Number of samples until the correct value will be output: In PRECISION mode HIGH, the distance has to be stable for 4 + 16 samples for the output to show the current value.

  • Page 25: Field Of View

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 5.7 FIELD OF VIEW The width of the measuring field can be limited with the FIELD OF VIEW function. All measuring values outside the set measuring field are ignored. This is particularly useful if, for example, the measuring field contains an unwanted object that should not be detected.
  • Page 26 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 5.7.2 LIMIT LEFT Limitation of the left side of the measuring 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.

  • Page 27: Analog Out

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 5.8 ANALOG OUT 5.8.1 SCALE OUT In the factory setting, the analog output runs across the entire measuring range (start of measuring range Sdc - end of measuring range Sde) from 0...10V (voltage mode) or from 4...20mA (current mode).
  • Page 28 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 5.8.1.3 SET MAX VALUES 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 NEAR to 110 mm •...

  • Page 29: Digital Out

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 5.9 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 30 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 5.9.3 WINDOW P1 Window point 1 (for the WINDOW mode) is selected in mm using the arrow keys. The point must lie within the measuring range (greater than start of measuring range Sdc +2x hysteresis 5.9.4...

  • Page 31: System

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 5.10 SYSTEM 5.10.1 ANALOG OUT The analog output can be reset to voltage or current, depending on purpose. See the Section "Interfaces and output --> Analog signal output". Current • Voltage 5.10.2 DISPLAY LIGHT The display background illumination automatically switches off after the set time or remains switched on.
  • Page 32 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 5.10.5 RESET This resets all settings in sensor parameters to the factory settings. MEAS TYPE = Avg DIST OBJECT = Bright PRECISION = Standard SCALE OUT = Max. values FIELD OF VIEW = Max.

  • Page 33: Setting

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 5.11 SETTING The settings entered in the sensor can be applied, stored or displayed here. 5.11.1 APPLY The settings saved under SAVE can be activated here. • Setting 1 Setting 2 •...

  • Page 34: Function And Definition

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Function and definition 6.1 Sensors data sheet General data PT740020 PT740021 Function Distance Distance Function: FIELD OF VIEW Measuring range (distance) 100…150 mm 100…500 mm Start of measuring range Sdc End of measuring range Sde Measuring range (width) 48…72 mm...
  • Page 35 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 LIVE MONITOR: Minimum object height 4 mm 10 mm Minimum object width 4 mm 12 mm Digital output hysteresis 0.5% of Sd (switch point) 1% of Sd (switch point) Power on indication...
  • Page 36 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Electrical data PT740020 PT740021 Voltage supply range +Vs 15 ... 28 VDC 15 ... 28 VDC Max. supply current (without load) 120 mA 150 mA Output circuit Analog Analog Output signal 4 ... 20 mA / 0 ... 10 VDC (adjustable) 4 ...
  • Page 37 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Focus distance df 125 mm 350 mm Beam size @ exit window perpendicular 2.5 mm 2.2 mm parallel 7.5 mm 5.8 mm Beam size @ focus perpendicular < 0.1 mm < 0.4 mm...
  • Page 38 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 6.1.2 Dimensions * Optical axis 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 39: Functional Principle

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 6.2 Functional principle The sensor operates in accordance to 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 this laser line is projected onto a matrix.
  • Page 40 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 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.

  • Page 41: Measuring Repetition Time And Response Time

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 6.3 Measuring repetition time and response time Response time fast Measuring 2x measuring repetition time repetition time Laser- exposure Response time worst case 3x measuring repetition time 6.3.1 Measuring repetition time The measuring repetition time (specified in milliseconds) is the time between two exposure times.

  • Page 42: Hysteresis

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 6.4 Hysteresis 6.4.1 Definition oft he hysteresis sensing distance ��������. Without hysteresis ����, objects could at the limit of the switching points lead to ceaseless The Hysteresis is the difference between switch-on and switch-off point. It is defined as a percentage of the on/off switching or bouncing.
  • Page 43 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 6.4.3 Characteristics of the switching output at SWITCH POINT Measuring value Hysteresis SWITCH POINT High Output Level 6.4.4 Characteristics of WINDOW Measuring value Hysteresis WINDOW P2 WINDOW WINDOW P1 Hystersis High Output Level www.ipf.de...

  • Page 44: Object To Be Measured

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 6.5 Object to be measured 6.5.1 Smallest detectable object For an object to be reliably detected, it must conform to the minimum object width . This minimum object width varies with the distance from the sensor.

  • Page 45: Inputs And Outputs

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 6.6 Inputs and outputs The PT740020/21 provides digital and analog outputs, as well as a sync-in. Analog output Synchronization Switching output Alarm output NOTE When an object moves laterally out of the measuring field, the last valid output value is retained until an object is again present in the measuring range.
  • Page 46 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 6.6.1.1 Formulas for analog signal conversion The measuring values can be converted from mm into the analog output signal and vice versa with the following formulas. If the measuring range has been limited with SCALE OUT, the new settings for Current Start of measuring range Sdc and Current End of measuring range Sde must be used.
  • Page 47 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 6.6.2 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 stands at high, the sensor delays the next measurement (Hold) and reduces the power of the laser beam.
  • Page 48 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Measuring if Synch-In low 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.
  • Page 49 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Sync-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). High Sync High...
  • Page 50 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Sync-In High to Low: Sync-In has to set from High to Low to bring 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.
  • Page 51 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 6.6.3 Switching output The switching output can be set as a point or a window, see Section DIGITAL OUT. The output is transmitted as a push-pool signal with active high or active low (inverted), depending on the setting.
  • Page 52 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 6.6.5 Behavior of the 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 Measuring range...

  • Page 53: Touch Panel

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 6.7 Touch panel 6.7.1 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 capacitive touch operator interfaces.

  • Page 54: Standard Deviation

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Standard deviation The standard deviation is a term from the field of statistics or stochastics and is given in σ (sigma). With the standard deviation it is possible to determine how great the dispersion of values around a mean value is.

  • Page 55: Safety Instructions And Maintenance

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 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 56 MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Class 1: No risk to eyes or skin Class 2: Do not stare into beam Class 2 lasers emit radiation in the visible portion of A Class 1 laser product is defined as safe the spectrum (400 nm to 700 nm).

  • Page 57: Influence Of Ambient Light

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 7.3 Influence of ambient light Ambient light from lamps, the sun, etc. in the view field of the sensor can lead to malfunctions or a reduction of accuracy and should be avoided as much as possible.

  • Page 58: Error Correction And Tips

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 Error correction and tips 8.1 Examples of sensor setup 8.1.1 Simple distance measurement to an object 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.

  • Page 59: Error Correction

    MANUAL [PT740020/21] • Subject to alteration! Version: 24.10.2018 8.2 Error correction Error Error correction No function • Check connection. Power supply 15…28 VDC between pin 2 (+Vs, brown) and pin 7 (GND, blue) Green LED flashes • Short circuit at the digital output. Check connection.

Table of Contents