Functional Safety Of Machine Controls

Author : Hauke, M.
Publisher : DGUV/IFA
ISBN 13 : 3864232325
Total Pages : 324 pages
Book Rating : 4.29/5 ( download)

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Download or read book Functional safety of machine controls written by Hauke, M. and published by DGUV/IFA. This book was released on 2019-08-20 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: The EN ISO 13849-1 standard, “Safety of machinery – Safety-related parts of control systems”, contains provisions governing the design of such parts. This report is an update of BGIA Report 2/2008e of the same name. It describes the essential subject-matter of the standard in its third, revised 2015 edition, and explains its application with reference to numerous examples from the fields of electromechanics, fluidics, electronics and programmable electronics, including control systems employing mixed technologies. The standard is placed in its context of the essential safety requirements of the Machinery Directive, and possible methods for risk assessment are presented. Based upon this information, the report can be used to select the required Performance Level PLr for safety functions in control systems. The Performance Level PL which is actually attained is explained in detail. The requirements for attainment of the relevant Performance Level and its associated Categories, component reliability, levels of diagnostic coverage, software safety and measures for the prevention of systematic and common-cause failures are all discussed comprehensively. Background information is also provided on implementation of the requirements in real-case control systems. Numerous example circuits show, down to component level, how Performance Levels a to e can be engineered in the selected technologies with Categories B to 4. The examples provide information on the safety principles employed and on components with well-tried safety functionality. Numerous literature references permit closer study of the examples provided. The report shows how the requirements of EN ISO 13849-1 can be implemented in engineering practice, and thus makes a contribution to consistent application and interpretation of the standard at national and international level.

Author : Michael Hauke
Publisher :
ISBN 13 : 9783883837932
Total Pages : 373 pages
Book Rating : 4.38/5 ( download)

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Download or read book Functional Safety of Machine Controls written by Michael Hauke and published by . This book was released on 2009 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Marco Tacchini
Publisher : John Wiley & Sons
ISBN 13 : 1119789052
Total Pages : 356 pages
Book Rating : 4.55/5 ( download)

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Download or read book Functional Safety of Machinery written by Marco Tacchini and published by John Wiley & Sons. This book was released on 2023-03-10 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: FUNCTIONAL SAFETY OF MACHINERY Enables readers to understand ISO 13849-1 and IEC 62061 standards and provides a practical approach to functional safety in machinery design Functional Safety of Machinery: How to Apply ISO 13849-1 and IEC 62061 introduces functional safety of machinery as a single unified approach, despite the existence of two standards. Aligning with the latest updates of ISO 13849-1 and IEC 62061, the book explains the intent behind the standards and the mathematical basis on which they are written, details the differences between the two standards, and prescribes ways to put them into practice. To aid in seamless reader comprehension, detailed examples are included throughout the book which walk readers through concepts like Random and Systematic Failures, High and Low demand mode of operation, Diagnostic Coverage, and Safe Failure Fraction. Other sample topics covered within the book include: Basics of reliability engineering and functional safety Roles of the standards in the design and evaluation of safety functions Description of the Main Parameters used in the two standards How to deal with Low Demand Safety Systems The Categories of ISO 13849-1 and the Basic Subsystem Architectures of IEC 62061 How Categories and Architectures can be validated Machinery design engineers, machinery manufacturers, and professionals in system and industrial safety fields can use this book as a one-stop resource to understand the specifics and applications of ISO 13849-1 and IEC 62061.

Author :
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.25/5 ( download)

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Download or read book American National Standard for Machines written by and published by . This book was released on 2018 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : David J. Smith
Publisher : Elsevier
ISBN 13 : 0080967825
Total Pages : 289 pages
Book Rating : 4.20/5 ( download)

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Download or read book Safety Critical Systems Handbook written by David J. Smith and published by Elsevier. This book was released on 2010-11-11 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Safety Critical Systems Handbook: A Straightfoward Guide to Functional Safety, IEC 61508 (2010 Edition) and Related Standards, Including Process IEC 61511 and Machinery IEC 62061 AND ISO 13849, Third Edition, offers a practical guide to the functional safety standard IEC 61508. The book is organized into three parts. Part A discusses the concept of functional safety and the need to express targets by means of safety integrity levels. It places functional safety in context, along with risk assessment, likelihood of fatality, and the cost of conformance. It also explains the life-cycle approach, together with the basic outline of IEC 61508 (known as BS EN 61508 in the UK). Part B discusses functional safety standards for the process, oil, and gas industries; the machinery sector; and other industries such as rail, automotive, avionics, and medical electrical equipment. Part C presents case studies in the form of exercises and examples. These studies cover SIL targeting for a pressure let-down system, burner control system assessment, SIL targeting, a hypothetical proposal for a rail-train braking system, and hydroelectric dam and tidal gates. The only comprehensive guide to IEC 61508, updated to cover the 2010 amendments, that will ensure engineers are compliant with the latest process safety systems design and operation standards Helps readers understand the process required to apply safety critical systems standards Real-world approach helps users to interpret the standard, with case studies and best practice design examples throughout

Author : Werner, C.
Publisher : DGUV/IFA
ISBN 13 : 386423235X
Total Pages : 117 pages
Book Rating : 4.50/5 ( download)

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Download or read book Safe drive controls with frequency inverters written by Werner, C. and published by DGUV/IFA. This book was released on 2019-08-22 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: Machine drives using closed-loop speed control are state of the art. As on drives without closed-loop speed control, the movement of a machine part at varying speeds frequently gives rise to a hazard against which the machine operators must be protected. The simplest means of preventing movements during manual intervention in danger zones is the (safe) disconnection of the energy driving the relevant motors. This is however often not possible, for example when intervention is required whilst the machine is running for the purpose of clearing faults, setup, during test operation, etc. Scenarios such as these require the machine to be operated with protective equipment disabled. In order for the operators‘ safety to be assured nonetheless, Annex I, Section 1.2.5 of the Machinery Directive sets out the required measures. Safety sub-functions for drive controls have been defined for implementation of the machine functions required for this purpose. Examples are STO (safe torque off), SLS (safely limited speed) and SS1 (safe stop 1). This report addresses the use of drive control equipment that implements safety sub-functions at a certain Performance Level according to ISO 13849-1 in consideration of the application and risks. The basic safety sub-functions of drive controls and the requirements relating to their use are presented. The principles of operation of frequency inverters and DC converters are described, and implementation of the safety sub-functions are explained. Examples are provided of application circuits by which the various machine safety functions can be implemented. The corresponding SISTEMA files for quantification of these safety functions are available for download free of charge. The examples include both standard frequency inverters and frequency inverters with integrated safety functions.

Author : William M. Goble
Publisher :
ISBN 13 : 9781556179969
Total Pages : 515 pages
Book Rating : 4.60/5 ( download)

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Download or read book Control Systems Safety Evaluation and Reliability written by William M. Goble and published by . This book was released on 1998 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : John R. Ridley
Publisher : Elsevier
ISBN 13 : 075066780X
Total Pages : 295 pages
Book Rating : 4.07/5 ( download)

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Download or read book Safety with Machinery written by John R. Ridley and published by Elsevier. This book was released on 2006 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'Safety With Machinery' provides a basic grounding in machinery safety and covers safeguarding philosophy and strategy, typical hazards, risk assessment and reduction, guarding techniques, ergonomic considerations, safe use of equipment and the plant layout.

Author : British Standards Institution
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.12/5 ( download)

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Download or read book Safety of Machinery. Functional Safety of Safety-related Control Systems written by British Standards Institution and published by . This book was released on 2021 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : David Macdonald
Publisher : Elsevier
ISBN 13 : 9780080480237
Total Pages : 304 pages
Book Rating : 4.33/5 ( download)

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Download or read book Practical Machinery Safety written by David Macdonald and published by Elsevier. This book was released on 2004-07-16 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical Machinery Safety aims to provide you with the knowledge to tackle machinery safety control problems at a practical level whilst achieving compliance with national and international standards. The book highlights the major international standards that are used to support compliance with EU regulations and uses these standards as a basis for the design procedures. It looks at the risk assessment processes used to identify hazards and to quantify the risks inherent in a machine. It introduces the concepts of safety categories as defined by standard EN954-1 (Safety of Machinery) and illustrates the principles of failsafe design, fault tolerance and self-testing. It also provides an introduction to machinery protection devices such as guards, enclosures with interlocks and guard-monitoring relays, locking systems, safety mats, photo-electric and electro-sensitive principles and the application of light curtains, a study of Safety Control System techniques, and introduces the principles of safety-certified PLCs. Plan and implement safety systems that deliver a safe working environment and compliance with national and international standards Apply simple risk assessments and hazard design methods to your own projects Identify hazards that occur with machinery and know how to deal with them