www bzfxw com Safety of machine tools Large numerically controlled turning machines and turning centres The European Standard EN 12478 2000 has the status of a British Standard ILS n mo 10 NO mmr W~~H[.]
BS EN L2478:2001 ncolpolnting hrigmdzrn No I Safety of machine tools - Large numerically controlled turning machines and turning centres The European Standard EN 12478:2000 has the status of a British Standard ILS n.mo.10 NO mmr-W ~ ~ H O T I Tas1PEaMIssIoN EXCEPT AS PErMlTmD BY WPYBlGBT LAW Copyright by the European Committee For Standardization Tue Mar 02 10:18:13 2004 National foreword 'Ibis Bri!jsh Sramiard is the o f f i d English Language version of EN 12478:2000, including conigendum May 2001 lhe UK pamclpanon m irs preparadon was en& by Techrucal ComnuItee MTl?J1 Madune rods, to Subcomnunee MTUbB, Safety of meml cumng rmclune tools,whicb has the rqomibility to: - aid enquirers to un&s?and the text; on the interpretation, or proposal.for change, and keep the LK intemts informed; - present to the rerponsiMe European cornmitree a r ~ en@ - monitor related international and European developments and promulgate themmtheUK A List of organhtions represented on thisshmmrnittee can be obtained on request to its seerem Cross-references The Bnnrh Sran& wtuch implement mternahonal or European pubhcaoons ref& to m h s document may be found m the BSI %dads Catalogue under the seetion entitled "Inkmational StanCo-ndence Index", or by udng.the "Find"faciliw ofthe BSI StandardsElectronic catalogue A Xlish Standard dog not purport to include all t h e y provisions of a w n W Users of British Sranare respnsible for thew correct application Compliance with a British Standard does not of itself confer immunity from legal obligations l h documeru comprisesa fmnt wvcr, an inside h n t cover, the EN ode page, pages 10 34, an inside back cover and a back cover m e BSI copyright notice displayed m this document i n d i e when the donrment was last issued Sidelining in this document i n d i m the most recent changes by amendment ?hir Bri6sh S t u d d , having been prepared under the Amendments issued since vubliattion dirrction ofthe Eq%ering Sector Cornmi% was published under the 8uUmity of the Stand& Corn* md mmes into a e 3on 15 January 2001 Arnd No Date 13M2 October C o ~ ~ NI 02001 O BSI tkmber2Wl ISBN 580 26278 Copyright by the European Committee For Standardization Tue Mar 02 10:18:27 2004 Comments I n d i d by a sideline - ~~~~ ~~ EN 12478 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHENORM November 2000 - Incorporabng mmgendum May 2001 ICS 25.080.10 English version Safety of machine tools - Large numerically controlled turning machines and turning centres sewme der machineP-aunls -Tours a commande numerique et cenmr de tournage de grandes dinemlons - Sichamen wn Werkzeugmaschlnen G m h numenrch gerteuerte Drshmffchlnen und Drehzentren mis E w w s n Standam was approved by CEN on ~ u l 2000 y CEN members are bound to -ply wM Vs CENICENELEC internal Reguiatlom which rt'bulatethe condltlolrpfor gMng this European Sfandard me stam of a m n w l standard m a u t any alterawn Uptoaate ilsD ard bibliographlcai relerenms concemiw rvch natilcnd standards may be mainad on application to the Management Cenm or to any CEN member This European Standard exists in three oficial m s b n s (Engtsh French German).A version In any other language made by tranolatlon under the renpomibliity d a CEN member into itr own language and notified to me Management Centre has the same s t a b us me& versions CEN m e m w s are the national standards bode9 of Austria, Betglm Czech Republic Denmark Finland France Germany, Greece, Iceland Ireland Italy Luxembwrg Netherlands Noway Patugal Spain Sweden Swinenand and United Klngdm RRIOPFAN COMMnTEE FOR STAN!34RDLZATION C O M I T ~ E U R O P ~ E NDE NORMALLSATION EUROPilSCHLS KOMtTEE FOR SORML'CC Management tentre: rue de Stassart, 36 8-4050 8mrsels o moo CEN All rights of exploitation h any form and by any means reserved WMWWfor CEN Mtbnal Membem by the European C o m m i t t e e For Standardization Tue Mar 02 10:18:28 2004 Copyright Ref No EN 124782000E Page EN 12478:2000 Page Contents Foreword Introduction Scope 4 : List of significant hazards Safety requirements andlor measures Information for use Normative references Terms and definitions Annex A (normative) Noise emission measurement 15 28 32 AnnexZA (informative) Clauses of this European Standard addressing essentia!requirements or other provisions of EU directives 33 Bibliogaphy 34 Copyright by the European Committee For Standardization Tue Mar 02 10:18:30 2004 Page EN 12478:2000 Foreword This European Standard has been prepared by Technical Committee CEN/TC 143 "Machine tools - Safety", the secretariat of which is held by SNV This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2001, and conflicting national standards shall be withdrawn at the latest by May 2001 This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Diredve(s) For relaiionship with EU Directive(s), see informative Annex ZA, which is an integral part of this standard Organisation contribution to the preparation of this European Standard include the European rnanufachlrer Association CECIMO The European Standards produce0 by CiNlTC 143 are panlcular Lo machine-toolsan0 complemenl the relevant A and B standards on rhe subiect of general safety (see inlroducdon of EN 292-1:1991 lor a descriprion of A ana C standards) Annex A is normative According to the CENICENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France Germany Greece Iceland, Ireland Italy, Luxembourg, Nemedands, Norway, Portugal Spain Sweden, Switzerland and fie United Kingdom ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ Copyright by the European Committee For Standardization Tue Mar 02 10:18:31 2004 Page EN 12478:2000 Introduction This standard has been prepared to be a Harmonised Standard to provide one means of conforming to the Essential Safety Requirementsof the Machinery Directive and associated EFTA regulations This European Standard is a type C standard as defined in EN 292:1991 The extent to which hazards are covered 1s inoicated in the scope of mis standam In addi'jon Nrning machines shall comply as appropnate with EN 292'1991 pan and for hazaros which are no1wvered by this standard The requirement of this European Standard concern designers, manufachlrers, suppliers and importers of machines described in the swpe This standard also includes information to be provided by the manufacturer to the user Scope Th,s European Stanaard specifes the requirements andlor measures to remove the hazards and lim11the nsks on general purpose n~mericallycontrolled large turning machines and turning centres whlch are designed primarily to work wfd metal as defined in 3.1 and 3.2 and herein after referred to as "machines" Thb standard covers all signEcant relevant hazards which are listed in clause This standard is applies to : - numerically controlled large vertical tuming machines and turning centres which are equipped with work clamping plate exceeding 500 mm outside diameter - numerically controlled horkzontal spindle tuming machines and turning centres with distance between centres exceeding 000 mm or which are equipped with work clamping devices exceeding 500 mm outside diameter ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ The standard also applies to ancillary devices (e.g for workpieces, tools and work clamping devices handling devices and chip handling equipment, etc.) which are integral to the machine This standard also applies also to machines which are integrated in an automatic production line or tuming cell where the hazard and risks arising are comparable to those of machines working separately Where additional processes are involved this standard can be taken as a basis (see also annex bibliography) This standard does apply to NC turning machines with machining facilities under manual control which are dealt with in EN 12840:2000 This standard applies to machines which are manufactured after the date of issue of this standard Normative references This European Standard incorporates by dated or undated reference, provisions from other publications These normative references are cited at the appropriate places in the text and the publications are listed hereafter For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision For undated references the latest edition of the publication referred to applies (including amendments) EN 292-1:1991 Safety of machinery - Basic concepts, general principles for design - Pati :Basic terminology methodology Copyright by the European Committee For Standardization Tue Mar 02 10:18:32 2004 Page EN 12478:2000 EN 292-21991, Safety of machinery - Basic concepts, general principles for design - Part :Technical principles and specifications EN 292-2:19911A1:1995 Safety of machinery - Basic concepts, general principles for design - Part : Technical princples and specifications EN 294:1992 Safety of machinery- Safety distances to prevent dangerzone being reached by the upperlimbs EN 349:1993, Safety of machinery - Dimensions gaps to avoid crushing ofparts of the human body, EN 418:1992, Safety of machinery - Emergency stop equipment - Functional aspects EN 547-1:1996 Safety of machinery - Human body measurements dimensbns for openings for whole body access into machinery - Part-I EN 547-2:1996, Safety of machinery - Human body measmments dimensions required for access openings - Part EN 574:1996 Safety of machinery - Principles : Principles for determining the : Principles for determining the - Two hand control devices -Functional aspects - Principle for design EN 614-1:1995 Safety of machinery- Ergonomic design principles - Part I :Terminology and general principles EN 894-1:1997, Safety of machinery - Eqonomics requirements for the desgn of displays and control actuators Part :Generalprinciples for human interactions wm displays and control actuators EN 894-2:1997 Safety of machinery- Ergonomics requirements for the design of displays and control actuators Part :Displays EN 894-3:2000, Safety of machinery Part :Control actuators - Ergonomics requirements for the desgn of displays and control actuators - EN 9531997, Safety of machinery- Guards -General requirements for the design of tixed and moveable guards EN 954-1:1996, Safety of machinery design ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ - Safety related parts of control systems - Part : General principles for EN 982:1996 Safety of machinery - Safety requirements for fluid power systems and components - Hydraulics EN 9831996, Safety of machinery - Safety requirements for thid power systems and components - Pneumatics EN 1037:1995, Safety of machinery - Prevention of unexpected start up EN 1050:1996, Safety of machinery - Principles of risk assessment EN 1070:1998, Safety of machinery - Terminology EN 1088:1995, Safety of machinery selection - Interimking devices associated with guards - Principles for design and EN 1550:l997, Safety of machinery- Safety requirements for the design and construction of work holding chucks I EN 1837:1999 Safety of machinery- Integral lighting of machines EN IS0 14122-1:1996, Safety of machinery - Permanent means of access to machines and industrial plants Part :Choice of a fixed means of access between tow levels - EN ISO 14122-3:1996 Safety of machinery - Permanent means of access to machines and industrial plants Part :Stairways, stepladders and guard-rails - prEN IS0 14122-4:1999, Safety of machinery - Permanent means of access to machines and industrial plants Part :Fixed ladders - Copyright by the European Committee For Standardization Tue Mar 02 10:18:33 2004 Page EN 12478:2000 EN 12626:1997 Safely of machinery- Laser processing machines - Safety requirements EN 12840:2000, Safely of machine tools - Manually operated turning machines ENV 26385:1990 Ergonomic principles of the design of work systems EN 60204-1: I 992, Electrical equiprnent of indusbialmachines - Part 1:generalrequirement EN 60529:1991 Degrees ofprotection providedby enclosures (IP code) EN 60825-1:1994 + A11:1996 Safety of laser products - Equipment - Part :Classification, requirements and usets guide (IEC 60825-1:1993) EN IS0 3744:1995, Acoustics - Determination of sound power level of noise sources using sound pressure Engineeringmethodin an essential free field over a ref7ectingplane - EN IS0 3746:1995 Acoustics Detemination of sound power level of noise sources using sound pressure Survey method using an enveloping measurement surface aver a reflectingplane EN IS0 9614-1:1995 Acoustics - Determination of sound power levels of noise sources using sound intensity Part 1:Measurement at discreet point EN IS0 11202:1995 Acoustics - Noise emiffed by machinery and equipment - Measurementmethod of emission sound pressure levels at the workstation and at other specifid positions - Suwey method in situ EN IS0 112Lkk1995, Acoustics corrections - Noise emitted by machinery and equipment - Method requiring environmental EN IS0 11688-1:1998, Acoustics - Recommended practice for the design of low noise machinery and equipment Part :Planning Terms and definitions ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ For the purposes of this standard and in addition to the terms and definitions given in EN 292:1991 and EN 418:1992 and EN 1070:1998, the following terms and definitions apply: 3.1 numericallv controlled tumina machine -~ Machine tool in which the pnnzpal movement the rotation of the workpiece against me statlonary cuning lool(s) and where cumna enerqy is brought by the workpiece and not by me tool This machine is mtrollea by a numerical control (NC) prGdirg %tornatic%nction according to 3.3.1 ~~ Copyright by the European Committee For Standardization Tue Mar 02 10:18:34 2004 Page EN 12478:2000 ccntrol panel platform saddle rear guard chuck guard access door front guard Figure la- Large horizontal turning machine ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ perimeter fence platform Figure l b - Large vertical turning machine with operating platform Figure -Example of large turning machines Copyright by the European Committee For Standardization Tue Mar 02 10:18:35 2004 Page EN 12478:2000 turning centre A NC turning mach~neequipped with power driven tool(s) and the capacity to orientate the work holding spindle around its axis This machine may have additional features such as automatic tool changing from a magazine 3.3 machine modes of operation NOTE Definitions of modes of NC are given below : mode of NC A mode of operation of the NC or data entry device in which entries are interpreted as functions to be executed a) manual mode of NC Non automatic mode of NC of a machine where the operator mntrols it without the use of pre-programmed numeric data for example by push button or joystick control b) manual data input mode They entry of programme data by hand at the NC c) single block mode The mode of NC in which, at the initiation of the operator only one block of control data only is executed d) automatic mode The mode of NC in which the machine operates in accordance with the programme data until stopped by the program or the operator 3.3.1 ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ machining mode The automatic, programmed, sequential operation of me machine with the faality for manual or automatic loading/unloading of workpiece 3.3.2 machine setting mode Mode in which the operator performs adjustments for the subsequent machining process The programming, testing and manual (under power) non sequential operation of the machine This mode comprises e g program sequence check, measurement d tool and/or wurkpiece position (e g by NOTE twching the workpiece with a measurement probe or with the tool) 3.4 operatofs position Posiiion(s) where the operator stands to operate the machine, e.g close to the main mntml panel 3.5 operational stop A controlled stop function with power left available to machine actuators and which further hazardous machine movement is inhibited 3.6 programmable functions Functions that the user can have access to at the electronic equipment for program modifications 3.7 acceleration monitoring System designed to allow limiting acceleration/deceleraticm Copyright by the European Committee For Standardization Tue Mar 02 10:18:36 2004