Pilz PZA Series Operating Manual
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Pilz PZA Series Operating Manual

Safe monitoring relays
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Safe monitoring relays
Operating Manual-18219-EN-07

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  • Page 1 Safe monitoring relays Operating Manual-18219-EN-07...
  • Page 2 Preface This document is the original document. All rights to this documentation are reserved by Pilz GmbH & Co. KG. Copies may be made for the user's internal purposes. Suggestions and comments for improving this documenta- tion will be gratefully received.

  • Page 3: Table Of Contents

    Contents Introduction Validity of documentation Using the documentation Definition of symbols Safety Intended use Safety regulations Safety assessment Use of qualified personnel Warranty and liability Disposal For your safety Unit features Safety features Block diagram/terminal configuration Types: AC Types: DC Function description Installation Wiring...

  • Page 4: Introduction

    Introduction Validity of documentation This documentation is valid for the product PZA. It is valid until new documentation is pub- lished. This operating manual explains the function and operation, describes the installation and provides guidelines on how to connect the product. Using the documentation This document is intended for instruction.

  • Page 5: Safety

    INFORMATION This gives advice on applications and provides information on special fea- tures. Safety Intended use The unit operates as a time delay device with delay-on energisation In accordance with EN ISO 14119 (release with delay through timer) in safety circuits in accordance with VDE 0113-1 and IEC 60204-1 The unit is designed for use with Safety relays from the PNOZ series safety gate monitors from the PST series...

  • Page 6: Use Of Qualified Personnel

    Use of qualified personnel The products may only be assembled, installed, programmed, commissioned, operated, maintained and decommissioned by competent persons. A competent person is a qualified and knowledgeable person who, because of their train- ing, experience and current professional activity, has the specialist knowledge required. To be able to inspect, assess and operate devices, systems and machines, the person has to be informed of the state of the art and the applicable national, European and international laws, directives and standards.

  • Page 7: Unit Features

    Unit features Positive-guided relay outputs: – 1 safety contact (N/O), delay-on energisation – 2 auxiliary contacts (N/C), delay-on energisation LED display for: – Supply voltage – Switch state safety output 12 time values, set via rotary switch Feedback loop for monitoring external contactors See order reference for unit types Safety features The relay meets the following safety requirements:...

  • Page 8: Types: Dc

    Types: DC : 24 V DC; Order no. 774028, 774029, 774030, 774041 *Insulation between the non-marked area and the relay contacts: Basic insulation (over- voltage category III), Protective separation (overvoltage category II) Function description The unit is ready for operation when the feedback loop Y1-Y2 is closed. Input circuit closed (supply voltage is present) "POWER"...

  • Page 9: Installation

    : Delay time [1]: Normal operating cycle [2]: Fault: Input circuit opened too early [3]: Fault: Feedback loop closed too late after t elapsed NOTICE At the earliest the safety contacts close after the set delay time - 15% of the set value, even in the case of a component failure.

  • Page 10: Preparing For Operation

    Preparing for Operation Supply voltage Input circuit is driven by connect- ing U Without feedback loop monitor- Feedback loop With feedback loop monitoring Link or contacts from external con- tactors Operation When the relay outputs are switched on, the mechanical contact on the relay cannot be tested automatically.

  • Page 11: Faults - Interference

    Faults – Interference LED "POWER" does not light: Short circuit or no supply voltage. If an error occurs in the time relay the safety contact remains open and the auxiliary contacts remain closed. The time value goes toward infinity. Dimensions in mm 75 (2.95") 45 (1,77") 87 (3.42")
  • Page 12 Inputs 774030 774031 774035 Voltage at Feedback loop DC 24 V 24 V 24 V Current at Feedback loop DC 50 mA 50 mA 50 mA Relay outputs 774030 774031 774035 Number of output con- tacts Safety contacts (N/O), delayed Auxiliary contacts (N/ C), delayed Max.
  • Page 13 Relay outputs 774030 774031 774035 Utilisation category of auxiliary contacts AC15 at 230 V 230 V 230 V Max. current DC13 (6 cycles/min) at 24 V 24 V 24 V Max. current Utilisation category in ac- cordance with UL Voltage 240 V AC G.
  • Page 14 Times 774030 774031 774035 Min. delay time (operating mode delay-on energisa- tion) tv - 15 % tv - 15 % tv - 15 % Environmental data 774030 774031 774035 Climatic suitability EN 60068-2-78 EN 60068-2-78 EN 60068-2-78 Ambient temperature Temperature range -10 - 55 °C -10 - 55 °C -10 - 55 °C...
  • Page 15 Mechanical data 774030 774031 774035 Conductor cross section with screw terminals 1 core flexible 0,2 - 4 mm², 24 - 10 AWG 0,2 - 4 mm², 24 - 10 AWG 0,2 - 4 mm², 24 - 10 AWG 2 core with the same cross section, flexible with crimp connectors, 0,2 - 2,5 mm², 24 - 14...
  • Page 16 Relay outputs 774038 774040 774041 Number of output con- tacts Safety contacts (N/O), delayed Auxiliary contacts (N/ C), delayed Max. short circuit current 1 kA 1 kA 1 kA Utilisation category In accordance with the standard EN 60947-4-1 EN 60947-4-1 EN 60947-4-1 Utilisation category of safety contacts...
  • Page 17 Relay outputs 774038 774040 774041 Utilisation category in ac- cordance with UL Voltage 240 V AC G. P. 240 V AC G. P. 240 V AC G. P. With current Voltage 24 V DC Resistive 24 V DC Resistive 24 V DC Resistive With current Pilot Duty B300, R300...
  • Page 18 Environmental data 774038 774040 774041 Ambient temperature Temperature range -10 - 55 °C -10 - 55 °C -10 - 55 °C Storage temperature Temperature range -40 - 85 °C -40 - 85 °C -40 - 85 °C Climatic suitability Humidity 93 % r.
  • Page 19 Mechanical data 774038 774040 774041 Conductor cross section with screw terminals 1 core flexible 0,2 - 4 mm², 24 - 10 AWG 0,2 - 4 mm², 24 - 10 AWG 0,2 - 4 mm², 24 - 10 AWG 2 core with the same cross section, flexible with crimp connectors, 0,2 - 2,5 mm², 24 - 14...
  • Page 20 Order no. 774020 – 774026 General 774020 774023 774026 CCC, CE, EAC (Euras- CCC, CE, EAC (Euras- CCC, CE, EAC (Euras- Approvals ian), TÜV, cULus Listed ian), TÜV, cULus Listed ian), TÜV, cULus Listed Electrical data 774020 774023 774026 Supply voltage Voltage 24 V 110 - 120 V...
  • Page 21 Relay outputs 774020 774023 774026 Utilisation category of auxiliary contacts AC1 at 240 V 240 V 240 V Min. current 0,01 A 0,01 A 0,01 A Max. current Max. power 1500 VA 1500 VA 1500 VA DC1 at 24 V 24 V 24 V Min.
  • Page 22 Relay outputs 774020 774023 774026 External contact fuse pro- tection, auxiliary contacts Max. melting integral 240 A²s 240 A²s 240 A²s Blow-out fuse, quick Blow-out fuse, slow Blow-out fuse, gG Circuit breaker 24 V AC/DC, characteristic Conventional thermal cur- rent Contact material AgSnO2 + 0,2 µm Au AgSnO2 + 0,2 µm Au...
  • Page 23 Environmental data 774020 774023 774026 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 Rated insulation voltage 250 V 250 V 250 V Rated impulse withstand voltage 4 kV...
  • Page 24 Order no. 774028 – 774029 General 774028 774029 CCC, CE, EAC (Eurasian), TÜV, CCC, CE, EAC (Eurasian), TÜV, Approvals cULus Listed cULus Listed Electrical data 774028 774029 Supply voltage Voltage 24 V 24 V Kind Voltage tolerance -15 %/+10 % -15 %/+10 % Output of external power supply (DC)
  • Page 25 Relay outputs 774028 774029 Utilisation category of auxiliary con- tacts AC1 at 240 V 240 V Min. current 0,01 A 0,01 A Max. current Max. power 1500 VA 1500 VA DC1 at 24 V 24 V Min. current 0,01 A 0,01 A Max.
  • Page 26 Relay outputs 774028 774029 External contact fuse protection, auxiliary contacts Max. melting integral 240 A²s 240 A²s Blow-out fuse, quick Blow-out fuse, slow Blow-out fuse, gG Circuit breaker 24 V AC/DC, characteristic B/C Conventional thermal current Contact material AgSnO2 + 0,2 µm Au AgSnO2 + 0,2 µm Au Times 774028...
  • Page 27 Environmental data 774028 774029 Protection type Housing IP40 IP40 Terminals IP20 IP20 Mounting area (e.g. control cab- inet) IP54 IP54 Mechanical data 774028 774029 Mounting position Mechanical life 10,000,000 cycles 10,000,000 cycles Material Bottom PPO UL 94 V0 PPO UL 94 V0 Front ABS UL 94 V0 ABS UL 94 V0...

  • Page 28: Safety Characteristic Data

    Safety characteristic data NOTICE You must comply with the safety characteristic data in order to achieve the required safety level for your plant/machine. Operating EN ISO EN ISO EN 62061 EN 62061 IEC 61511 IEC 61511 EN ISO mode 13849-1: 13849-1: 13849-1: SIL CL [1/h] 2015...

  • Page 29: Supplementary Data

    Supplementary data Service life graph The service life graphs indicate the number of cycles from which failures due to wear must be expected. The wear is mainly caused by the electrical load; the mechanical load is negli- gible. Switching current (A) Example Inductive load: 0.2 A Utilisation category: AC15...

  • Page 30: Order Reference

    This product/these products meet the requirements of the directive 2006/42/EC for ma- chinery of the 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 PZA...
  • Page 31 Back cover Support Technical support is available from Pilz round the clock. Americas Australia Scandinavia Brazil +61 3 95600621 +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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