Pilz PSEN op2H-A Series Operating Manual
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Pilz PSEN op2H-A Series Operating Manual

Safety light curtain
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PSEN op2H-A series
Safety light curtain
Operating Manual-1003069-EN-03

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  • Page 1 PSEN op2H-A series Safety light curtain Operating Manual-1003069-EN-03...
  • Page 2 Preface This document is a translation of the original document. All rights to this documentation are reserved by Pilz GmbH & Co. KG. Copies may be made for internal purposes. Suggestions and comments for improving this documentation will be gratefully received.

  • Page 3: Table Of Contents

    GENERAL INFORMATION ............5 General description ....................5 1.1.1 General description of the safety light curtain............5 1.1.2 Package content ..................... 6 Guidelines for selecting the protective device ............7 1.2.1 Resolution ....................... 7 1.2.2 Height of protected field ..................8 1.2.3 Minimum safety distance ..................
  • Page 4 TECHNICAL DETAILS .............. 54 LIST OF AVAILABLE MODELS ..........55 DIMENSIONS ................56 FITTINGS .................. 57 ACCESSORIES ................ 59 14.1 Rotating Mounting Bracket ..................59 14.2 Connection cable ....................60 14.3 Axial connection cable, unshielded ................61...

  • Page 5: General Information

    Light curtains in the PSEN op2H-A series are designed as inherently safe Type 2 systems for accident prevention in accordance with applicable international safety standards, in particular...

  • Page 6: Package Content

    Specialised knowledge of safety issues is required to integrate a safety light curtain correctly in a plant. PILZ’s technical customer service team is available to provide any information you need regarding the functionality of the PSEN op2H-A safety light curtains and the safety regulations concerning correct installation.

  • Page 7: Guidelines For Selecting The Protective Device

    OPERATING MANUAL PSEN op2H-A series 1.2 Guidelines for selecting the protective device Once the hazards have been assessed appropriately, there are at least three essential features to consider when selecting a safety light curtain: 1.2.1 Resolution The device’s resolution is understood to be the minimum size that an opaque object must be to safely interrupt at least one of the beams that form the area of the protected field.

  • Page 8: Height Of Protected Field

    OPERATING MANUAL PSEN op2H-A series 1.2.2 Height of protected field The height of the protected field is understood to be the height protected by the safety light curtain. Fig. 2 – Height of protected field Protected field Height of protected...

  • Page 9: Minimum Safety Distance

    OPERATING MANUAL PSEN op2H-A series PSEN op2H-A-30-165/1 1650 PSEN op2H-A-30-180/1 1800 1.2.3 Minimum safety distance The protective device must be positioned at a specific safety distance (Fig. 3), which guarantees that the operator cannot reach the danger zone until the hazardous machine movement has come to a standstill by triggering the light curtain.
  • Page 10 OPERATING MANUAL PSEN op2H-A series The safety distance is calculated using the following formula: S = K (t1 + t2) + C Therefore: Minimum safety distance in mm Speed of the object (limb or body) approaching the danger zone in mm/s Light curtain’s response time in seconds (see Chapter 11)
  • Page 11 OPERATING MANUAL PSEN op2H-A series Application examples This example is based on a light curtain with a height = 600 mm. To calculate the distance of the device from the light curtain in a vertical position, the following formula is applied:...

  • Page 12: Typical Application Areas

    OPERATING MANUAL PSEN op2H-A series 1.3 Typical application areas Example 1: Protecting the operating area on drilling machines The operator inserts the workpiece and removes it after machining. The operator must be protected from injury during the machining process. Solution: The safety light curtain PSEN op2H-A is particularly suitable for this application, as the device needs to be installed directly on the machine.

  • Page 13: Safety Information

    Benefits: The small dimensions of the light curtain with no dead zones guarantees maximum flexibility during installation, as it can be adapted to the machine dimensions. 1.4 Safety information To use the safety light curtains in the PSEN op2H-A series safely and correctly, the following information must be considered: •...

  • Page 14: Installation

    PSEN op2H-A series OPERATING MANUAL 2 INSTALLATION 2.1 Precautions to be taken during selection and installation of a light curtain Ensure that the safety level guaranteed by the PSEN op2H-A (Type 2) complies with the actual risk assessment of the machine to be monitored, as well as the level defined by the standard EN 13849.

  • Page 15: General Information On Positioning The Device

    PSEN op2H-A series OPERATING MANUAL 2.2 General information on positioning the device Special care should be taken when positioning the safety light curtain to ensure it provides efficient protection. The device must be installed so that the danger zone cannot be accessed without interrupting the protected field.

  • Page 16: Minimum Distance From Reflective Surfaces

    PSEN op2H-A series OPERATING MANUAL Fig. 7 Fig. 8 2.2.1 Minimum distance from reflective surfaces Reflective surfaces close to the beams emitted from the protective device (whether from above, below or from the side) can cause passive reflections. These passive reflections can adversely affect how the object is detected within the protected area.

  • Page 17: Distances Between Identical Light Curtains

    PSEN op2H-A series OPERATING MANUAL This minimum distance depends on the following factors: • The distance between the transmitter (TX) and receiver (RX) • The actual opening angle of the light curtain; in particular: when Type 2 light curtain = 10° (α = ± 5°) The illustration in Fig.
  • Page 18 PSEN op2H-A series OPERATING MANUAL The following graphic shows the distance from the interfering devices (D ), based on the operating range (D ) of the pair (TX A – RX A). Reichweite Operating range Fig. 12 For the purpose of simplification, the table below states the values of the minimum safety distances required for installation, with reference to some operating ranges.
  • Page 19 PSEN op2H-A series OPERATING MANUAL Fig. 13 shows an example of an installation in which interference may occur, along with two potential remedies. Opaque partition Fig. 13 – Interference between adjacent light curtains 1003069-EN-03...

  • Page 20: Aligning Transmitter And Receiver

    PSEN op2H-A series OPERATING MANUAL 2.2.3 Aligning transmitter and receiver The light curtain pair must be arranged in parallel to each other. Transmitter and receiver have connections underneath. Both units must be installed at the same time. Make sure that the light curtains are not configured as shown in Fig. 14.

  • Page 21: Inspections Following A First-Time Installation

    PSEN op2H-A series OPERATING MANUAL The table below states the operating ranges based on the number of mirrors used. Number Operating range of mirrors (30 mm) 16.5 m 13.7 m 11.6 m • Never use more than three mirrors per device.
  • Page 22 PSEN op2H-A series OPERATING MANUAL Perform the following checks: • The light curtain is in a safe state (OSSDs off) − The beams are interrupted across the whole area of the protected field using a test object (test rod) (TP-30) with an appropriate resolution, in accordance with the diagram in Fig.

  • Page 23: Mechanical Assembly

    OPERATING MANUAL PSEN op2H-A series 3 MECHANICAL ASSEMBLY The transmitter (TX) and receiver (RX) must be assembled with their sensing surfaces facing each other. The connectors must be positioned on the same side and the distance must be within the operating limits of the relevant model (see Chapter 11).
  • Page 24 OPERATING MANUAL PSEN op2H-A series Fig. 19 – Light curtain dimensions MODEL L (mm) A (mm) B (mm) C (mm) PSEN op2H-A-30-030/1 306,3 86,3 PSEN op2H-A-30-045/1 456,3 236,3 PSEN op2H-A-30-060/1 606,2 306,2 PSEN op2H-A-30-075/1 756,2 406,2 PSEN op2H-A-30-090/1 906,1 506,1...

  • Page 25: Electrical Connections

    OPERATING MANUAL PSEN op2H-A series 4 ELECTRICAL CONNECTIONS 18-pin rectangular pigtail cables are used at the light curtain for electrical connections. The pigtail cable has M12 connectors with a different number of pins on the opposite side. On muting models, the receiver is equipped with one 12-pin M12 connector and one 5-pin M12 connector.
  • Page 26 OPERATING MANUAL PSEN op2H-A series Assignment of M12 connector 12-pin 5-pin PSENopt Advanced RX Muting CONNECTION LINE BEHAVIOUR 24Vdc Is connected – when in disabled state the RESET IN line N.O. RESET/RESTART/ALIGN button is operated 24Vdc Is connected – when during operation the...

  • Page 27: Connection Guidelines

    OPERATING MANUAL PSEN op2H-A series 4.1 Connection guidelines The following section contains some guidelines regarding the connections, which should be followed to ensure the correct operation of the safety light curtain from the PSEN op2H- A series. • Never place connection cable close to or in contact with cables featuring high voltage ratings and/or current fluctuations (e.g.: motor supply, inverters etc.).
  • Page 28 OPERATING MANUAL PSEN op2H-A series Manual start Fig. 21 – Connection to safety relay – manual start The diagrams show the connection between the safety light curtains and the safety relay PNOZ s3 in automatic start mode (Fig. 20) and monitored manual start mode (Fig 21).
  • Page 29 OPERATING MANUAL PSEN op2H-A series Fig. 24 – Incorrect OSSD signal load connection Fig. 25 – Incorrect OSSD signal load (II) connection (III) NOTE: The OSSDs are pulsed. The following diagram shows the time characteristic of the OSSDs. 24 V DC...

  • Page 30: Alignment

    OPERATING MANUAL PSEN op2H-A series 5 ALIGNMENT The transmitter and receiver must be aligned to ensure the device operates correctly. Good alignment prevents the light curtain switching incorrectly due to dust or vibration. The optimum alignment is achieved when the optical axes of the first and last beam from the transmitter coincide with the optical axes of the corresponding elements on the receiver.
  • Page 31 OPERATING MANUAL PSEN op2H-A series A. Hold the receiver in a stable position and align the transmitter until the yellow SYNC1 LED goes out. This state confirms that the first synchronisation beam has been aligned. B. Rotate the transmitter around the axis of the lower lens until the yellow SYNC2 LED goes out.

  • Page 32: Setting The Functions

    OPERATING MANUAL PSEN op2H-A series 6 SETTING THE FUNCTIONS In basic configuration mode you have the option to use the buttons and the LED interface (transmitter/receiver) to select basic functions/parameters. Basic configuration mode The user interface consists of 8 LEDs and 3 protected pushbuttons and enables the user to perform the basic configuration.

  • Page 33: Reset To Factory Configuration

    OPERATING MANUAL PSEN op2H-A series 6.1 Reset to factory configuration The user has the option to re-establish the light curtain’s factory configuration by operating the pushbuttons as described below: 1. Press the CONFIRM button and keep it held down for at least 9 s (but not more than 30 s, so that the light curtain is not blocked) 2.
  • Page 34 OPERATING MANUAL PSEN op2H-A series Selection of partial Muting LED-Status Muting Light curtain LED # zone zone Led 2 OFF Led 3 OFF Led 2 ON red Led 3 OFF A+B+C Led 2 ON red Led 3 OFF A+B+C+D Led 2 OFF...

  • Page 35: Functions

    OPERATING MANUAL PSEN op2H-A series 7 FUNCTIONS 7.1 Restart function If the beams detect an opaque object, the OSSD output switching elements will switch (i.e. the safety contacts will open, SAFETY conditions). The restart function enables the user to define how the light curtain returns from the safe state to normal operation.
  • Page 36 OPERATING MANUAL PSEN op2H-A series Manual restart: When the light curtain has detected an opaque object in the protected field, the light curtain does not resume its normal operation until the object has been removed from the protected field and the reset button has been operated.

  • Page 37: Test

    OPERATING MANUAL PSEN op2H-A series The section below describes how the restart mode can be selected via the pushbutton as well as via the user interface. BCM configuration: Restart mode LEVEL Auto LED 5 red (ON) Manual LED 5 OFF 7.2 Test...

  • Page 38: Reset

    OPERATING MANUAL PSEN op2H-A series 7.3 Reset If the light curtain is blocked in a fault state, you can restore normal operation by switching the light curtain on and off or by activating the RESET function (only with critical errors).

  • Page 39: Edm Selection

    OPERATING MANUAL PSEN op2H-A series The function monitors the switching of the 24 V DC N/C contact, based on the OSSD status changes. PNP configuration NPN configuration Fig. 36 – EDM timings The EDM status is not equivalent to that of the OSSD: the timing diagram illustrates the relationship between cause (OSSD) and effect (EDM), with the maximum permitted delay.

  • Page 40: Reduced Range

    OPERATING MANUAL PSEN op2H-A series To increase the safety level when EDM is OFF when the light curtain is commissioned, ensure that the EDM input is not connected. 7.6 Reduced range This function enables you to select the maximum operating range for the light curtain’s assembly.

  • Page 41: Disabling The Muting Function

    OPERATING MANUAL PSEN op2H-A series L-Version with integrated T-Version with integrated muting Linear version with external muting sensors for muting in sensors for muting in two muting sensors one direction directions Fig. 39 – Application examples for the muting function •...

  • Page 42: Typical Muting Application And Sensor Connection

    OPERATING MANUAL PSEN op2H-A series 7.7.3 Typical muting application and sensor connection Safety sensor Fig. 40 – Typical muting application The diagram above shows a typical muting application: the protection device installed on the conveyor must allow the package to pass through but not the operator. The light curtain temporarily suspends its safety function when the sensors A11, A21, A12, A22 are activated in the correct sequence.
  • Page 43 OPERATING MANUAL PSEN op2H-A series Fig. 41 – T muting timings The sensors labelled A1/A2 are connected to the muting input (MUTING1) and the sensors labelled B1/B2 are connected to the MUTING2 input. Sensors ending in “1” are on the same side of the light curtain and therefore on the opposite side to the sensors ending in “2”.
  • Page 44 OPERATING MANUAL PSEN op2H-A series Fig. 42 – T-Muting connection L-Muting With L-muting, the light curtain is muted if the input signals switch to 24 V DC in accordance with a certain sequence: MUTING1 must be activated first; only then can MUTING2 be activated.
  • Page 45 OPERATING MANUAL PSEN op2H-A series “V” indicates a constant velocity. As a result, “d1” can be calculated in accordance with the following formula: d1 [cm] = V [m/s] * T12 [s] * 100 Fig. 44 – L-Muting connection BCM configuration: Muting direction...

  • Page 46: Muting Timeout

    OPERATING MANUAL PSEN op2H-A series 7.7.5 Muting timeout The muting timeout describes the time for the maximum duration of the muting function; once the timeout has elapsed, muting is ended. The user has the option to set this time. He can select a timeout to be 10 minutes or infinite; "infinite" means that the muting timeout may potentially never end: as long as the muting conditions are present, the muting function will be maintained.

  • Page 47: Partial Muting

    OPERATING MANUAL PSEN op2H-A series 7.7.6 Partial muting The muting type can be configured: total or partial muting. Partial muting can prove useful when the user wishes to limit the effects of the muting function exclusively to the selected zones. Each of the zone A-D includes a quarter of the light curtain‘s length. With a light curtain with a length of 40 cm, this is 15 cm.

  • Page 48: Override Mode

    OPERATING MANUAL PSEN op2H-A series The condition for the override is that the light curtain must be in a SAFE STATE and at least one muting sensor must have been interrupted. If this condition is met, the user interface shows “override call status” and both the red LED on the OSSDs and the LEDs for the alignment function flash.
  • Page 49 OPERATING MANUAL PSEN op2H-A series • Activated by edge: When the contacts are closed, the override remains activated until at least one muting sensor has been interrupted. In this case, the override status is also maintained if the override contacts are opened. The device switches the override status if any of the following events occurs: −...

  • Page 50: Diagnostics

    OPERATING MANUAL PSEN op2H-A series 8 DIAGNOSTICS 8.1 Status of LEDs On the bottom left-hand side of the light curtain 8 LEDs help users to monitor and check the state of the light curtain in alignment mode, in normal mode and when troubleshooting. The LEDs can be used to recognise the configuration that has been set via the pushbuttons.
  • Page 51 OPERATING MANUAL PSEN op2H-A series If the OSSDs switch off unintentionally and during active muting, Muting active check the partial muting configuration. Override active Activate the override Normal button to bridge OSSDs Override status operating to light mode Muting only...
  • Page 52 If the problem should persist, please contact customer services. A critical error cannot be eliminated via a RESET. The light curtain must be switched on and off. If the error should persist, please contact Pilz customer services. Transmitter side (TX): Meaning of LED...

  • Page 53: Regular Checks And Maintenance

    PSEN op2H-A series OPERATING MANUAL 9 REGULAR CHECKS AND MAINTENANCE 9.1 REGULAR CHECKS Perform the following checks once a day • The light curtain remains in a safe state (OSSDs off). − The beams are interrupted across the whole area of the protected field using a test object (test rod) (TP-30) with an appropriate resolution, in accordance with the following diagram.

  • Page 54: Technical Details

    OPERATING MANUAL PSEN op2H-A series 10 TECHNICAL DETAILS Electrical data Operating voltage: 24 V DC ±20% Current consumption transmitter (TX): Max. 3 W Current consumption receiver (RX): 5 W max (without load) Outputs: 2 PNP Short circuit protection: 1.4 A max Output current: 0.5 A max.

  • Page 55: List Of Available Models

    OPERATING MANUAL PSEN op2H-A series 11 LIST OF AVAILABLE MODELS Protected Test rate Demand rate No. of Response field Resolution beams time height Model 1/min PSEN op2H-A-30-030/1 PSEN op2H-A-30-045/1 PSEN op2H-A-30-060/1 PSEN op2H-A-30-075/1 PSEN op2H-A-30-090/1 1050 PSEN op2H-A-30-105/1 1200 PSEN op2H-A-30-120/1...

  • Page 56: Dimensions

    OPERATING MANUAL PSEN op2H-A series 12 DIMENSIONS Model (mm) L (mm) PSEN op2H-A-30-030/1 306.3 PSEN op2H-A-30-045/1 456.3 PSEN op2H-A-30-060/1 606.3 PSEN op2H-A-30-075/1 756.3 PSEN op2H-A-30-090/1 906.3 PSEN op2H-A-30-105/1 1056.3 PSEN op2H-A-30-120/1 1050 1206.3 PSEN op2H-A-30-135/1 1200 1356.3 PSEN op2H-A-30-150/1 1350 1506.3...

  • Page 57: Fittings

    OPERATING MANUAL PSEN op2H-A series 13 FITTINGS Fastening bracket Terminator cap (fixed to the light curtain) 1003069-EN-03...
  • Page 58 OPERATING MANUAL PSEN op2H-A series Tool for BCM configuration When not in use, the tool for the BCM configuration can be slotted into the profile groove or into the upper section of the light curtain. 1003069-EN-03...

  • Page 59: Accessories

    OPERATING MANUAL PSEN op2H-A series 14 ACCESSORIES 14.1 Rotating Mounting Bracket Description Order number PSEN op cascading bracket 631 061 1003069-EN-03...

  • Page 60: Connection Cable

    OPERATING MANUAL PSEN op2H-A series 14.2 Connection cable Description Order Number PSEN op pigtail emitter 631 055 Cable length 200 mm Description Order Number PSEN op pigtail receiver m 631 057 Cable length 200 mm 1003069-EN-03...

  • Page 61: Axial Connection Cable, Unshielded

    This product/these products meet the requirements of the directive 2006/42/EC for machinery of the European Parliament and of the Council. The complete EC Declaration of Conformity available Internet www.pilz.com/downloads. Representative: Norbert Fröhlich, Pilz GmbH & Co. KG, Felix-Wankel-Str. 2, 73760 Ostfildern, Germany 1003069-EN-03...

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