IEC_61800-5-2-2007.pdf

INTERNATIONAL STANDARD IEC61800-5-2 First edition2007-07 Adjustable speed electrical power drive systems Part 5-2:Safety requirements Functional Reference number IEC 61800-5-2:2007(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2007 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from either IEC or IECs member National Committee in the country of the requester.If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,please contact the address below or your local IEC member National Committee for further information.IEC Central Office 3,rue de Varemb CH-1211 Geneva 20 Switzerland Email:inmailiec.ch Web:www.iec.ch About the IEC The International Electrotechnical Commission(IEC)is the leading global organization that prepares and publishes International Standards for all electrical,electronic and related technologies.About IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sure that you have the latest edition,a corrigenda or an amendment might have been published.?Catalogue of IEC publications:www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,withdrawn and replaced publications.?IEC Just Published:www.iec.ch/online_news/justpub Stay up to date on all new IEC publications.Just Published details twice a month all new publications released.Available on-line and also by email.?Customer Service Centre:www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance,please visit the Customer Service Centre FAQ or contact us:Email:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONAL STANDARD IEC61800-5-2 First edition2007-07 Adjustable speed electrical power drive systems Part 5-2:Safety requirements Functional XB For price,see current cataloguePRICE CODE Commission Electrotechnique InternationaleInternational Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 61800-5-2 IEC:2007(E)CONTENTS FOREWORD.5 INTRODUCTION.7 1 Scope and object.8 2 Normative references.9 3 Terms and definitions.10 4 Designated safety functions.15 4.1 General.15 4.2 Safety functions.16 4.2.1 Limit values.16 4.2.2 Stopping functions.16 4.2.3 Other safety functions.17 5 Management of functional safety.18 5.1 Objective.18 5.2 PDS(SR)development lifecycle.18 5.3 Functional safety planning.19 5.4 Safety requirements specification(SRS)for a PDS(SR).21 5.4.1 General.21 5.4.2 Safety functionality requirements specification.21 5.4.3 Safety integrity requirements specification.22 6 Requirements for design and development of a PDS(SR).22 6.1 General requirements.22 6.1.1 Change in operational status.22 6.1.2 Design standards.22 6.1.3 Realisation.23 6.1.4 Safety integrity and fault detection.23 6.1.5 Safety and non-safety functions.23 6.1.6 SIL to be used.23 6.1.7 Software requirements.23 6.1.8 Review of requirements.23 6.1.9 Design documentation.24 6.2 PDS(SR)design requirements.24 6.2.1 Requirements for probability of dangerous random hardware failures per hour(PFH).24 6.2.2 Architectural constraints.26 6.2.3 Estimation of safe failure fraction(SFF).28 6.2.4 Requirements for systematic safety integrity of a PDS(SR)and PDS(SR)subsystems.28 6.2.5 Electromagnetic(EM)immunity requirement of a PDS(SR).31 6.3 Behaviour on detection of fault.31 6.3.1 Fault detection.31 6.3.2 Fault tolerance greater than zero.32 6.3.3 Fault tolerance zero.32 6.4 Additional requirements for data communications.32 6.5 PDS(SR)integration and testing requirements.33 6.5.1 Hardware integration.33 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.61800-5-2 IEC:2007(E)3 6.5.2 Software integration.33 6.5.3 Modifications during integration.33 6.5.4 Applicable integration tests.33 6.5.5 Test documentation.34 7 Information for use.34 7.1 Information and instructions for safe application of a PDS(SR).34 8 Verification and validation.35 8.1 General.35 8.2 Verification.36 8.3 Validation.36 8.4 Documentation.36 9 Test requirements.36 9.1 Planning of tests.36 9.2 Test documentation.36 10 Modification.37 10.1 Objective.37 10.2 Requirements.37 10.2.1 Modification request.37 10.2.2 Impact analysis.37 10.2.3 Authorization.37 10.2.4 Documentation.37 Annex A(informative)Sequential task table.38 Annex B(informative)Examp