EN 1870-5:2002
(Main)Safety of woodworking machines - Circular sawing machines - Part 5: Circular sawbenches/up-cutting cross-cut sawing machines
Safety of woodworking machines - Circular sawing machines - Part 5: Circular sawbenches/up-cutting cross-cut sawing machines
This European Standard specifies the requirements and/or the measures to remove the hazards and limit the risk on circular sawbenches/up-cutting cross-cut sawing machines, hereinafter referred to as "machines", designed to cut solid wood, chipboard, fibreboard, plywood and also these materials where they are covered with plastic edging and/or plastic/light alloy laminates.
This European Standard does not apply to :
- hand held woodworking machines or any adaptation permitting their use in a different mode, i.e. bench mounting;
- machines set up on a bench or a table similar to a bench, which is intended to carry out work in a stationary position, capable of being lifted by one person by hand.
This European Standard covers the hazards relevant to these machines as stated in clause 4.
For Computer Numerically Controlled (CNC) machines this European Standard does not cover hazards related to Electro-Magnetic Compatibility (EMC).
This European Standard is primarily directed at machines which are manufactured after the date of issue of this European Standard.
NOTE Circular sawbenches are dealt with in EN 1870-1:1999
Sicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 5: Kombinierte Tischkreissägemaschinen/von unten schneidende Kappsägemaschinen
Diese Europäische Norm legt die Anforderungen und/oder Maßnahmen für die Beseitigung von Gefähr-dungen und zur Begrenzung der Risiken an kombinierten Tischkreissägemaschinen/von unten schneidenden Kappsägemaschinen fest, im folgenden als "Maschinen" bezeichnet, die konstruiert sind zum Schneiden von Massivholz, Spanplatten, Faserplatten oder Sperrholz, sowie diesen Werkstoffen, wenn sie mit Kunststoffkanten versehen und/oder Beschichtungen aus Kunststoff/Leichtmetall-Legierung haben.
Diese Europäische Norm gilt nicht für:
- handgeführte Holzbearbeitungsmaschinen einschließlich solcher Einrichtungen, die ihre Verwendung in einer anderen Weise z.B. in einer Stationäreinrichtung ermöglichen;
- Maschinen, die auf ein Gestell oder auf einen Tisch, der einem Gestell ähnlich ist, aufgesetzt sind und die vorgesehen sind, während des Betriebs stationär verwendet zu werden und die von Hand von einer Person angehoben werden können.
Diese Europäische Norm behandelt die von der Maschine ausgehenden Gefährdungen, wie sie in Abschnitt 4 aufgelistet sind.
Diese Europäische Norm behandelt bei CNC-Maschinen nicht die Gefährdungen im Zusammenhang mit der elektromagnetischen Verträglichkeit (EMV).
Diese Europäische Norm ist in erster Linie auf Maschinen anzuwenden, die nach dem Datum der Herausgabe dieser Europäischen Norm hergestellt werden.
ANMERKUNG Tischkreissägemaschinen werden in EN 1870-1:1999 behandelt.
Sécurité des machines pour le travail du bois - Machines à scier circulaires - Partie 5: Scies circulaires combinées à table et à coupe transversale ascendante
La présente Norme européenne spécifie les prescriptions et/ou les mesures destinées à éliminer les phénomènes dangereux et limiter les risques sur les scies circulaires combinées à table et à coupe transversale ascendante (ci-après dénommées "machines"), conçues pour la coupe de bois massif, de panneaux de particules, et de fibres, de contre-plaqué, ainsi que ces matériaux lorsque leurs surfaces ou leurs chants sont recouverts de matière plastique et/ou de plastique/alliage léger stratifié.
La présente Norme européenne ne s'applique pas aux :
- machines à bois portatives ou toute adaptation permettant leur utilisation de manière différente, c'est-à-dire fixées sur un établi;
- machines installée sur un établi ou une table similaire à un établi, destinées à exécuter des travaux dans une position fixe, pouvant être soulevées à la main par une personne.
La présente Norme européenne couvre les phénomènes dangereux applicables à ces machines dont une liste est donnée à l'article 4.
Pour les machines à commande numérique la présente Norme européenne ne traite pas des phénomènes dangereux liés à la compatibilité électromagnétique (CEM).
La présente Norme européenne est applicable avant tout aux machines fabriquées après la date de publication de la présente Norme européenne.
NOTE Les scies circulaires à table sont traitées dans l'EN 1870-1:1999
Varnost lesnoobdelovalnih strojev - Krožne žage - 5. del: Delovne mize za krožno žago/podmizni čelilniki in stroji za prečni prerez
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Sicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 5: Kombinierte Tischkreissägemaschinen/von unten schneidende KappsägemaschinenSécurité des machines pour le travail du bois - Machines a scier circulaires - Partie 5: Scies circulaires combinées a table et a coupe transversale ascendanteSafety of woodworking machines - Circular sawing machines - Part 5: Circular sawbenches/up-cutting cross-cut sawing machines79.120.10Lesnoobdelovalni strojiWoodworking machines25.080.60Strojne žageSawing machinesICS:Ta slovenski standard je istoveten z:EN 1870-5:2002SIST EN 1870-5:2003en01-september-2003SIST EN 1870-5:2003SLOVENSKI
STANDARD
SIST EN 1870-5:2003
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1870-5April 2002ICS 79.120.10English versionSafety of woodworking machines - Circular sawing machines -Part 5: Circular sawbenches/up-cutting cross-cut sawingmachinesSécurité des machines pour le travail du bois - Machines àscier circulaires - Partie 5: Scies circulaires combinées àtable et à coupe transversale ascendanteSicherheit von Holzbearbeitungsmaschinen -Kreissägemaschinen - Teil 5: KombinierteTischkreissägemaschinen/von unten schneidendeKappsägemaschinenThis European Standard was approved by CEN on 8 November 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1870-5:2002 ESIST EN 1870-5:2003
EN 1870-5:2002 (E)2ContentsForeword.30Introduction.41Scope.52Normative references.53Terms and definitions.73.1Terms.73.2Definitions.74List of significant hazards.115Safety requirements and/or measures.145.1Controls.145.2Protection against mechanical hazards.165.3Protection against non-mechanical hazards.316Information for use.346.1Warning devices.346.2Marking.346.3Instruction handbook.35Annex A (normative)
Open frame machines stability test.37Annex B (normative)
Dimensional tolerances of saw spindles.38Annex C (normative)
Riving knife mounting strength test.39Annex D (normative)
Riving knife lateral stability test.40Annex E (normative)
Sawblade guard stability test.41E.1General.41E.2Machines with sawblade guards with lead-in.41E.3Machines with sawblade guards with in-feed rollers.41Annex F (informative)
Safe working practice.43Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.45Bibliography.46SIST EN 1870-5:2003
EN 1870-5:2002 (E)3ForewordThis document (EN 1870-5:2002) has been prepared by Technical Committee TC 142 "Woodworking machines -Safety", the secretariat of which is held by BSI.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by October 2002, and conflicting national standards shall be withdrawn at the latestby October 2002.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.Organisations contributing to the preparation of this European Standard include European Committee ofWoodworking Machinery Manufacturers Association "EUMABOIS".Annexes A, B, C, D and E are normative and Annexes F, G and ZA are informative.The European Standards produced by CEN/TC 142 are particular to woodworking machines and complement therelevant A and B Standards on the subject of general safety (see introduction of EN 292-1:1991 for a description ofA, B and C standards).According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.SIST EN 1870-5:2003
EN 1870-5:2002 (E)40IntroductionThis European Standard has been prepared to be a harmonised standard to provide one means of conforming tothe essential safety requirements of the Machinery Directive, and associated EFTA regulations. This EuropeanStandard is a type “C” standard as defined in EN 292-1:1991.The extent to which hazards are covered is indicated in the scope of this European Standard.The requirements of this European Standard concern designers, manufacturers, suppliers and importers of circularsawbenches/up-cutting cross-cut sawing machines.This European Standard also includes information to be provided by the manufacturer to the user.Common requirements for tooling are given in EN 847-1:1997.Electrically driven machines excluded by the scope of this European Standard are covered by the requirements ofEN 61029-1:1995.SIST EN 1870-5:2003
EN 1870-5:2002 (E)51 ScopeThis European Standard specifies the requirements and/or the measures to remove the hazards and limit the riskon circular sawbenches/up-cutting cross-cut sawing machines, hereinafter referred to as “machines”, designed tocut solid wood, chipboard, fibreboard, plywood and also these materials where they are covered with plastic edgingand/or plastic/light alloy laminates.This European Standard does not apply to :¾ hand held woodworking machines or any adaptation permitting their use in a different mode, i.e. benchmounting;¾ machines set up on a bench or a table similar to a bench, which is intended to carry out work in astationary position, capable of being lifted by one person by hand.This European Standard covers the hazards relevant to these machines as stated in clause 4.For Computer Numerically Controlled (CNC) machines this European Standard does not cover hazards related toElectro-Magnetic Compatibility (EMC).This European Standard is primarily directed at machines which are manufactured after the date of issue of thisEuropean Standard.NOTECircular sawbenches are dealt with in EN 1870-1:1999.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. Fordated references subsequent amendments to, or revisions of, any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 292-1:1991Safety of machinery - Basic concepts, general principles for design - Part 1:Basic terminology, methodologyEN 292-2:1991EN 292-2:1991/A1:1995Safety of machinery - Basic concepts, general principles for design - Part 2:Technical principles and specificationsEN 294:1992Safety of machinery - Safety distances to prevent danger zones being reachedby the upper limbsEN 847-1:1997Tools for woodworking - Safety requirements - Part 1: Milling tools and circularsawbladesEN 954-1:1996Safety of machinery - Safety-related parts of control systems - Part 1: Generalprinciples for designEN 982:1996Safety of machinery - Safety requirements for fluid power systems and theircomponents - HydraulicsEN 983:1996Safety of machinery - Safety requirements for fluid power systems and theircomponents - PneumaticsEN 1088:1995Safety of machinery - Interlocking devices associated with guards - Principles fordesign and selectionSIST EN 1870-5:2003
EN 1870-5:2002 (E)6EN 60204-1:1992Safety of machinery - Electrical equipment of machines - Part 1: Generalrequirements (IEC 60204-1:1992, modified)EN 60529Degree of protection provided by enclosures (IP code) (IEC 60529:1989)EN 60825-1Safety of laser products - Part 1: Equipment classification, requirements andusers guide (IEC 60825-1:1993)EN 60947-4-1Low voltage switchgear and control gear - Part 4: Contactors and motor starters- Section 1: Electromechanical contactors and motor starters(IEC 60947-4-1:1990)EN 60947-5-1:1997Low voltage switchgear and control gear - Part 5: Control circuit devices andswitching elements - Section 1: Electromechanical control circuit devices(IEC 60947-5-1:1990)EN 61029-1:1995Safety of transportable motor operated electric tools - Part 1: Generalrequirements (IEC 1029-1:1990 modified)EN ISO 3743-1Acoustics - Determination of sound power levels of noise sources - Engineeringmethods for small, moveable sources in reverberant fields - Part 1: Comparisonmethod for hard wall test rooms (ISO 3743-1:1994)EN ISO 3743-2Acoustics - Determination of sound power levels of noise sources - Engineeringmethods for small, moveable sources in reverberant fields - Part 2: Method forspecial reverberation test rooms (ISO 3743-2:1994)EN ISO 3744Acoustics - Determination of sound power levels of noise sources using soundpressure engineering methods in an essentially free field over a reflecting plane(ISO 3744:1994)EN ISO 3746:1995Acoustics - Determination of sound power levels of noise sources using soundpressure - Survey method employing an enveloping measurement surface overa reflecting plane (ISO 3746:1995)EN ISO 4871:1996Acoustics - Declaration and verification of noise emission values of machineryand equipment (ISO 4871:1996)EN ISO 9614-1Acoustics - Determination of sound power levels of noise sources using soundintensity - Part 1: Measurements at discrete points (ISO 9614-1:1993)EN ISO 11202:1995Acoustics - Noise emitted by machinery and equipment - Measurement methodof emission sound pressure levels at the workstation and at other specifiedpositions survey method in situ (ISO 11202:1995)EN ISO 11204:1995Acoustics - Noise emitted by machinery and equipment - Measurement ofemission sound pressure levels at the workstation and at other specifiedpositions - Method requiring environmental corrections (ISO 11204:1995)EN ISO 11688-1Acoustics - Recommended practice for the design of low noise machinery andequipment - Part 1: Planning (ISO/TR 11688-1:1995)ISO 3745Acoustics - Determination of sound power levels of noise sources - Precisionmethods for anechoic and semi-anechoic roomsISO 7960:1995Airborne noise emitted by woodworking machine tools - Operating conditions forwoodworking machinesHD 21.1 S3Polyvinyl chloride insulated cables of rated voltages up to and including450/750v - Part 1: General requirementsSIST EN 1870-5:2003
EN 1870-5:2002 (E)7HD 22.1 S3Rubber insulated cables of rated voltages up to and including 450/750v
- Part 1:General requirementsHD 22.4 S3Rubber insulated cables of rated voltages up to and including 450/750 V
- Part4: Cords and flexible cables (IEC 60245-4:1994, modified)3 Terms and definitionsFor the purposes of this European Standard the following terms and definitions apply.3.1 TermsThe main parts of the machine and their terminology are illustrated in Figure 1.Key1Under table extraction point2Controls3Elevation arm4Fixed guard beneath table5Table6Rotating part of table7Riving knife8Sawblade guard9Push stick10Sawblade guard exhaust outlet11Saw guard support12Moveable roller table locking clamp13Rip- and cross-cut fence14Moveable roller table support15Moveable roller table16Extension tableFigure 1 — Terminology3.2 Definitions3.2.1circular sawbench/up-cutting cross-cut sawing machinecircular sawing machine with a single sawblade. The sawblade spindle has one fixed rotational speed. The saw unitis situated below the workpiece support (table) and the machine may be used in three modes :SIST EN 1870-5:2003
EN 1870-5:2002 (E)8a) for ripping, with the sawblade set parallel to the fence. The workpiece is fed manually or by a demountablepower feed (see Figure 2); orb) for cross-cutting, with the saw unit set at 90º to the fence. The workpiece is fed manually by use of a slidinginfeed table which moves at 90º to the fence (see Figure 3); orc) for cross cutting where the saw unit is raised manually e.g. by a hand lever, to cut through the stationaryworkpiece (see Figure 4)In addition, in each mode the saw unit may be tilted about the horizontal axis of the saw spindle to produce anangled cut on the workpiece. In the cross-cutting modes the saw unit can be additionally rotated about a verticalaxis to produce a bevelled cut.Figure 2 — Example of a machine in the ripping modeFigure 3 —Example of a machine in the cross-cutting mode with moved workpieceSIST EN 1870-5:2003
EN 1870-5:2002 (E)9Figure 4 — Example of a machine in the cross-cutting mode with stationary workpiece3.2.2infeed tableadditional table at the infeed of the machine, used as :a) a support for the rip fence and to facilitate feeding the workpiece for ripping during use of the machine as acircular sawbench;b) a sliding table for cross-cutting with the sawblade unit in a fixed position;c) additional fixed position workpiece support during use of the machine as an up-cutting cross-cut sawingmachine3.2.3operator positionthat area occupied by the operator for use in the bench sawing mode and for use in both cross-cut sawing modes,as shown in Figure 5SIST EN 1870-5:2003
EN 1870-5:2002 (E)10Plan view of machineKey1Outfeed table2Infeed table3Workpiece4Operating area for ripping and cross-cutting modesFigure 5 — Operating position3.2.4transportable machinemachine which is located on the floor, stationary during use and equipped with a device, normally wheels, whichallows it to be moved between locations3.2.5machine actuatorpower mechanism used to effect motion of the machine3.2.6hand feedmanual holding and/or manual guiding of the workpiece (or of a machine element incorporating a tool). Hand feedincludes the use of a hand operated carriage on which the workpiece is placed manually or clamped, and the useof a demountable power feed unitNOTEThe words in brackets are not applicable to this machine.3.2.7demountable power feed unitfeed mechanism which is mounted on the machine so that it can be moved from the working position without theuse of a spanner or similar additional device3.2.8ejectionunexpected movement of the workpiece or parts of it or part of the machine from the machine during processing3.2.9kickbackparticular form of ejection and is describing the unexpected movement of the workpiece or parts of it or parts of themachine opposite to the direction of feed during processing3.2.10anti-kickback devicedevice which either reduces the possibility of kickback or arrests the motion during kickback of the workpiece orparts of it or parts of the machineSIST EN 1870-5:2003
EN 1870-5:2002 (E)113.2.11safety applianceadditional device which is not an integral part of the machine but which assists the operator in the safe feeding ofthe workpiece, e.g. see Figure 6b) — Example of push blocka) — Example of push stickFigure 6 —
Examples of a push stick and push block3.2.12run-down timetime elapsed from the actuation of the stop control up to spindle standstill3.2.13confirmationstatements, sales literature, leaflets or other documents where the manufacturer (or supplier) declares either thecharacteristics or the compliance of the material or product to a relevant standard4 List of significant hazardsThis European Standard deals with all hazards listed and relevant to the machines as defined in the scope :¾ for significant hazards by defining safety requirements and/or measures or by reference to relevant type Bstandards;¾ or hazards which are not significant e.g. general, minor or secondary hazards by reference to relevant typeA or B standards, especially EN 292-1:1991 and EN 292-2:1991/A1:1995.SIST EN 1870-5:2003
EN 1870-5:2002 (E)12These hazards are listed in Table 1 in accordance with Annex A of EN 292-2:1991/A1:1995.Table 1 — List of significant hazardsNumberSignificant hazardRelevant clauses of thisEuropean Standard1Mechanical hazards caused for example by :-shape;-relative location;-mass and stability (potential energy of elements);-mass and velocity (kinetic energy of elements);-inadequacy of the mechanical strength.Accumulation of potential energy by :-elastic elements (springs); or-liquids or gases under pressure; or-vacuumof the machine parts or workpieces.1.1Crushing hazard5.2.7, 5.2.81.2Shearing hazard5.2.7, 5.2.81.3Cutting or severing hazard5.2.2, 5.2.3, 5.2.4, 5.2.71.4Entanglement hazard5.2.71.5Drawing-in or trapping hazard5.2.71.6Impact hazardNot relevant1.7Stabbing or puncture hazardNot relevant1.8Friction or abrasion hazardNot relevant1.9High pressure fluid ejection hazard5.3.71.10Ejection of parts (of machinery and processedmaterials/workpieces)5.2.2, 5.2.3, 5.2.5, 5.2.6, 5.2.81.11Loss of stability of machinery and machine parts5.2.11.12Slip, trip and fall hazards in relationship with machinery(because of their mechanical nature)Not relevant2Electrical hazards caused for example by :2.1Electrical contact (direct or indirect)5.3.4, 5.3.162.2Electrostatic phenomenaNot relevant2.3Thermal radiation or other phenomena such as ejectionof molten particles and chemical effects from shortcircuits, overloads etc.Not relevant2.4External influences on electrical equipment5.1.1, 5.3.4, 5.3.123Thermal hazards resulting in :3.1Burns and scalds, by a possible contact of persons, byflames or explosion and also by the radiation of heatsourcesNot relevant3.2Health damaging effects by hot or cold workenvironmentNot relevant4Hazards generated by noise resulting in :4.1Interference with speech communication, acousticsignals etc.5.3.24.2Hearing losses (deafness), or other physiologicaldisorders (e.g. loss of balance, loss of awareness)5.3.25Hazards generated by vibration (resulting in a variety ofneurological and vascular disorders)Not relevant(continued)SIST EN 1870-5:2003
EN 1870-5:2002 (E)13Table 1 — List of significant hazards (concluded)NumberSignificant hazardRelevant clauses of thisEuropean Standard6Hazards generated by radiation, especially by :6.1Electric arcsNot relevant6.2Lasers5.3.136.3Ionising radiation sourcesNot relevant6.4Machines making use of high frequency electrical fieldsNot relevant7Hazards generated by materials and substancesprocessed, used or exhausted by machinery forexample:7.1Hazards resulting from contact with or inhalation ofharmful fluids, gases, mists, fumes and dust5.3.37.2Fire or explosion hazard5.3.1, 5.3.3, 5.3.4,
Annex F7.3Biological and microbiological (viral or bacterial hazards)Not relevant8Hazards generated by neglecting ergonomic principlesin machine design (mismatch of machinery with humancharacteristics and abilities) caused for example by :8.1Unhealthy postures or excessive efforts5.1.28.2Inadequate consideration of human hand-arm or foot-leganatomy5.1.28.3Neglect of use of personal protection equipment6.3, Annex F8.4Inadequate area lightingAnnex F8.5Mental overload or underload, stress etcNot relevant8.6Human error6.3, Annex F9Hazard combinations5.1.710Hazards caused by failure of energy supply breakingdown of machinery parts and other functional disorders,for example :10.1Failure of energy supply (of energy and/or controlcircuits)5.1.1, 5.1.5, 5.1.610.2Unexpected ejection of machine parts or fluids5.2.510.3Failure, malfunction of control systems (unexpectedstart up, unexpected overrun)5.1.110.4Errors of fitting5.2.3, 5.3.1510.5Overturn, unexpected loss of machine stability5.2.111Hazards caused by (temporary) missing and/orincorrectly positioned safety related measures/meansfor example :11.1All kinds of guard5.2.711.2All kinds of safety related (protection) devices5.1.1, 5.2.711.3Starting and stopping devices5.1.2, 5.1.3, 5.1.4, 5.2.411.4Safety signs and signals6.211.5All kinds of information and warning devices6.2, 6.311.6Energy supply disconnection devices5.3.1611.7Emergency devicesNot relevant11.8Feeding/removal means of workpieces5.2.611.9Essential equipment and accessories for safe adjustingand/or maintaining5.3.1711.10Equipment evacuating gases etc5.3.3SIST EN 1870-5:2003
EN 1870-5:2002 (E)145 Safety requirements and/or measuresFor guidance in connection with risk reduction by design, see clause 3 of EN 292-2:1991/A1:1995, and in addition :5.1 Controls5.1.1 Safety and reliability of control systemsFor the purposes of this European Standard a safety related control system is one from and including the initialmanual control or position detector to the point of input to the final actuator or element e.g. motor. The safetyrelated control systems of this machine (see EN 954-1:1996) are those for :¾ starting (see 5.1.3);¾ normal stopping (see 5.1.4);¾ interlocking (see 5.2.7.3, 5.2.7.4);¾ the braking system (see 5.1.4, 5.2.4).These control systems shall, as a minimum be designed and constructed using "well tried components andprinciples".For the purposes of this European Standard "well tried components and principles" means :a) electrical components if they comply with relevant standards including the following as :i) EN 60947-5-1:1997, section 3 for control switches with positive opening operation used as mechanicalactuated position detectors for interlocking guards and for relays used in auxiliary circuits;ii) EN 60947-4-1 for electromechanical contactors and motor-starters used in main circuits;iii) HD 22.1 S3
for rubber-insulated cables;iv) HD 21.1 S3 for polyvinyl chloride cable if this cable is additionally protected against mechanicaldamage by positioning (e.g. inside frames).b) electrical principles if they comply with the first four measures listed in 9.4.2.1 of EN 60204-1:1992. Thecircuits shall be either "hardwired", or if electronic components are used in safety related control systems "welltried" is fulfilled if they are in accordance with 9.4.2.2 (i.e. redundancy with cross-monitoring) or 9.4.2.3 (i.e.diversity) of EN 60204-1:1992;c) mechanical components if, for example, they operate in the positive mode in accordance with thedescription given in 3.5 of EN 292-2:1991/A1:1995;d) mechanically actuated position detectors for guards if they are actuated in the positive mode and theirarrangement/fastening and cam design/mounting comply with the requirements of 5.2 and 5.3 of EN1088:1995.Time delay devices used in hardwired safety related control circuits can be of category B in accordance with therequirements of
EN 954-1:1996 if the time delay device is designed for at least one million actuations.Verification : By checking the relevant drawings and/or circuit diagrams and inspection of the machine, for electricalcomponents by requiring confirmation from the manufacturer of the component which declares conformity with therelevant standards.5.1.2 Position of controlsThe start control and the stop control shall be located in the shaded area X of Figure 7.SIST EN 1870-5:2003
EN 1870-5:2002 (E)15Key1Area XFigure 7 —Position of controlsVerification : By checking the relevant drawings, measurement and inspection of the machine.5.1.3 StartingSee 9.2.5.2 of EN 60204-1:1992 and in addition :For the purposes of this European Standard "all of the safeguards in place and functional" is achieved by theinterlocking arrangements described in 5.2.7 and "operation" means rotation of the saw spindle.The exceptions described in 9.2.5.2 of EN 60204-1:1992 are not relevant.Verification : By checking the relevant drawings and/or circuit diagrams, inspection and relevant functional testingof the machine.5.1.4 Normal stoppingMachines shall be fitted with a stop control which, when actuated shall disconnect power from all the machineactuators and actuate the brake (if provided).If the machine is fitted with a mechanical brake this stop control shall be of a category 0 in accordance with therequirements 9.2.2 of EN 60204-1:1992.If the machine is fitted with an electrical brake this stop control shall be of category 1 in accordance with therequirements 9.2.2 of EN 60204-1:1992. When initiated the stopping sequence shall be :a) cut power to machine actuators and actuate the brake;b) cut power to brake after stopping sequence is complete.The stopping sequence shall be satisfied at the level of the control circuits. If a time delay device is used, timedelay shall be at least the maximum run-down time. Either the time delay shall be fixed, or, the time delayadjustment device shall be sealed.Verification : By checking the relevant drawings and/or circuit diagrams, inspection and relevant functional testingof the machine.SIST EN 1870-5:2003
EN 1870-5:2002 (E)165.1.5 Failure of the power supplyOn electrically driven machines an automatic restart in the case of a supply interruption after the restoration of thesupply voltage shall be prevented in accordance with 7.5 paragraphs 1 and 3 of EN 60204-1:1992.Verification : By checking the relevant drawings and/or circuit diagrams, inspection and relevant functional testingof the machine.5.1.6 Failure of the control circuitsSee 5.1.1.5.2 Protection against mechanical hazards5.2.1 StabilityMachines shall be equipped with a facility to fix the machine to the floor, e.g. by providing fixing holes in themachine frame.The machine rigidity shall be in accordance with the requirements of Annex A.Machines intended to be moved using a crane or hoist shall be equipped with provision for lifting devices, e.g. liftingeyes, correctly positioned relative to the machine centre of gravity.Transportable machines fitted with wheels shall have facilities to make them stable during cutting e.g. brakes forthe wheels or a device to retract the wheels from the floor.NOTEThe requirements for a stability test for transportable machines with wheels, both when moved from location tolocation and when in use, will be considered at the first revision of this standard.Verification : By checking the relevant drawings, inspection and rele
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