Pilz PNOZ 8 Operating Manual
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Pilz PNOZ 8 Operating Manual

Safety relays
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PNOZ 8
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Safety relays
Operating Manual 22152-EN-03

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Summary of Contents for Pilz PNOZ 8

  • Page 1 PNOZ 8 Safety relays Operating Manual 22152-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

    Function Description Operating modes Timing diagram Installation Wiring Preparing for operation Operation Status indicators Faults – Interference Dimensions in mm Technical details Safety characteristic data Supplementary data Service life graph Order reference EC declaration of conformity Operating Manual PNOZ 8 22152-EN-03...

  • Page 4: Introduction

    PNOZ 8 Introduction Validity of documentation This documentation is valid for the product PNOZ 8. It is valid until new documentation is published. This operating manual explains the function and operation, describes the installation and provides guidelines on how to connect the product.

  • Page 5: Safety

    Safety Intended use The safety relay PNOZ 8 provides a safety-related interruption of a safety circuit. The safety relay meets the requirements of EN 60947-5-1, EN 60204-1 and VDE 0113-1 and may be used in applications with E-STOP pushbuttons...

  • Page 6: Warranty And Liability

    Note for overvoltage category III: If voltages higher than low voltage (>50 VAC or >120 VDC) are present on the unit, connected control elements and sensors must have a rated insulation voltage of at least 250 V. Operating Manual PNOZ 8 22152-EN-03...

  • Page 7: Unit Features

    The circuit is redundant with built-in self-monitoring. The safety function remains effective in the case of a component failure. The correct opening and closing of the safety function relays is tested automatically in each on-off cycle. Operating Manual PNOZ 8 22152-EN-03...

  • Page 8: Block Diagram/Terminal Configuration

    III), Protective separation (overvoltage category II) Type: DC : 24 VDC; Order no. 774760 A1 A2 Feed- back/ Start *Insulation between the non-marked area and the relay contacts: Basic insulation (over- voltage category III), Protective separation (overvoltage category II) Operating Manual PNOZ 8 22152-EN-03...

  • Page 9: Function Description

    PNOZ 8 Function Description The safety relay PNOZ 8 provides a safety-oriented interruption of a safety circuit. When supply voltage is supplied the "POWER" LED is lit. The unit is ready for operation when the feedback loop Y1-Y2 and the start circuit S12-Y1 are closed.

  • Page 10: Timing Diagram

    Use the notch on the rear of the unit to attach it to a DIN rail. Ensure the unit is mounted securely on a vertical DIN rail (35 mm) by using a fixing ele- ment (e.g. retaining bracket or an end angle). Operating Manual PNOZ 8 22152-EN-03...

  • Page 11: Wiring

    Important for detection of shorts across contacts: As this function for detecting shorts across contacts is not failsafe, it is tested by Pilz during the final control check. If there is a danger of exceeding the cable runs, we recommend the following test after the installation of the device: 1.

  • Page 12: Preparing For Operation

    Safety gate with detection of shorts across contacts NOTICE With single-channel wiring the safety level of your machine/plant may be lower than the safety level of the unit (see Safety characteristic data [ 20]). Operating Manual PNOZ 8 22152-EN-03...
  • Page 13 The unit starts up automatically when the safeguard is reset, e.g. when the E-STOP pushbutton is released. Use external circuit measures to prevent an unexpected restart. Feedback loop with feedback loop monitoring without feedback loop monitoring Link or contacts from external contactors Operating Manual PNOZ 8 22152-EN-03...

  • Page 14: Operation

    – Activate the safety function and check whether all the used safety contacts open. – Prepare for operation again and start the unit. All the used safety contacts must be closed again. The safety functions may only be checked by qualified personnel. Operating Manual PNOZ 8 22152-EN-03...

  • Page 15: Status Indicators

    Contact malfunctions: If the contacts have welded, reactivation will not be possible after the input circuit has opened. LED "POWER" does not light: Short circuit or no supply voltage. Dimensions in mm 75 (2.95") 90 (3.54") 87 (3.42") Operating Manual PNOZ 8 22152-EN-03...

  • Page 16: Technical Details

    UB DC 8 Ohm – – Dual-channel with de- tection of shorts across contacts at UB AC – 20 Ohm 20 Ohm Semiconductor outputs 774760 774764 774768 Number Voltage 24 V 24 V 24 V Operating Manual PNOZ 8 22152-EN-03...
  • Page 17 In accordance with the standard EN 60947-5-1 EN 60947-5-1 EN 60947-5-1 Utilisation category of safety contacts AC15 at 230 V 230 V 230 V Max. current DC13 (6 cycles/min) at 24 V 24 V 24 V Max. current Operating Manual PNOZ 8 22152-EN-03...
  • Page 18 774764 774768 current while loading several contacts Ith per contact at UB AC; AC1: 240 V, DC1: 24 V Conv. therm. current with 1 contact – Conv. therm. current with 2 contacts – Conv. therm. current with 3 contacts – Operating Manual PNOZ 8 22152-EN-03...
  • Page 19 10 - 55 Hz Amplitude 0,35 mm 0,35 mm 0,35 mm Airgap creepage In accordance with the standard EN 60947-1 EN 60947-1 EN 60947-1 Overvoltage category III / II III / II III / II Pollution degree Operating Manual PNOZ 8 22152-EN-03...

  • Page 20: Safety Characteristic Data

    600 g Where standards are undated, the 2014-07 latest editions shall apply. Safety characteristic data NOTICE You must comply with the safety-related characteristic data in order to achieve the required safety level for your plant/machine. Operating Manual PNOZ 8 22152-EN-03...

  • Page 21: Supplementary Data

    If the service life graphs are not accessible, the stated PFH value can be used irrespective of the switching frequency and the load, as the PFH value already considers the relay's B10d value as well as the failure rates of the other components. Operating Manual PNOZ 8 22152-EN-03...

  • Page 22: Service Life Graph

    European Parliament and of the Council. The complete EC Declaration of Conformity is available on the Internet at www.pilz.com/support/downloads. Representative: Norbert Fröhlich, Pilz GmbH & Co. KG, Felix-Wankel-Str. 2, 73760 Ost- fildern, Germany Operating Manual PNOZ 8...
  • Page 23 PNOZ 8 Operating Manual PNOZ 8 22152-EN-03...
  • Page 24 Back cover Support Technical support is available from Pilz round the clock. Americas Australia Scandinavia Brazil +61 3 95446300 +45 74436332 +55 11 97569-2804 Spain Canada Europe +34 938497433 +1 888-315-PILZ (315-7459) Austria Switzerland Mexico +43 1 7986263-0 +41 62 88979-30...

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