EN 1870-7:2002
(Main)Safety of woodworking machines - Circular sawing machines - Part 7: Single blade log sawing machines with integrated feed table and manual loading and/or unloading
Safety of woodworking machines - Circular sawing machines - Part 7: Single blade log sawing machines with integrated feed table and manual loading and/or unloading
This European Standard sets out the requirements and describes the method for the removal of hazards or, the measures that shall be taken to limit the risks on single blade circular log sawing machines with integrated feed table with manual loading and/or unloading, (hereinafter referred to as machines), designed to cut solid wood.
This European Standard does for Computer Numerically Controlled (CNC) machines not cover the hazards related to Electro-Magnetic Compatibility (EMC).
This European Standard covers the hazards relevant to the machine as stated in clause 4.
This European Standard is primarily directed at machines that are manufactured after the date of issue of this European Standard.
Sicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 7: Einblatt-Stammkreissägemaschinen mit mechanischem Tischvorschub und Handbeschickung und/oder Handentnahme
Diese Europäische Norm legt die Anforderungen fest und beschreibt die Methode zur Beseitigung von Gefährdungen oder die Maßnahmen, die zur Begrenzung der Risiken an Einblatt-Stammkreissägemaschinen mit mechanischem Tischvorschub und Handbeschickung und/oder Handentnahme, die konstruiert sind, zum Schneiden von Massivholz (im folgenden als ¿Maschinen" bezeichnet) durchgeführt werden müssen.
Diese Europäische Norm behandelt bei Computer-gesteuerten (CNC) Maschinen nicht die im Zusammenhang mit der elektromagnetischen Verträglichkeit (EMV) bestehenden Gefährdungen.
Diese Europäische Norm behandelt die von der Maschine ausgehenden Gefährdungen, die in Abschnitt 4 beschrieben sind.
Diese Europäische Norm gilt in erster Linie für Maschinen, die nach dem Ausgabedatum dieser Europäischen Norm hergestellt werden.
Sécurité des machines pour le travail du bois - Machines à scier circulaires - Partie 7: Scies circulaires monolames à grumes à avance intégrée à table et à chargement manuel et/ou déchargement manuel
La présente norme internationale spécifie les prescriptions et/ou les mesures destinées à éliminer les phénomènes dangereux et limiter les risques sur les machines à scier circulaires monolames à grumes à avance intégrée à table et à chargement et/ou déchargement manuel (ci-après dénommées "machines"), conçues pour la coupe de bois massif.
La présente norme européenne ne couvre pas les phénomènes dangereux liés à la compatibilité électromagnétique (CEM) pour les machines à commande numérique (CNC).
La présente norme couvre tous les phénomènes dangereux applicables à cette machine. Une liste de ces risques est donnée à l'article 4 de la présente norme.
La présente norme est applicable avant tout aux machines fabriquées après sa date de publication.
Varnost lesnoobdelovalnih strojev - Krožne žage - 7. del: Enolistne žage za razrez hlodov z vgrajeno podajalno mizo in ročnim podajanjem in/ali odvzemom
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.HPRPSicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 7: Einblatt-Stammkreissägemaschinen mit mechanischem Tischvorschub und Handbeschickung und/oder HandentnahmeSécurité des machines pour le travail du bois - Machines a scier circulaires - Partie 7: Scies circulaires monolames a grumes a avance intégrée a table et a chargement manuel et/ou déchargement manuelSafety of woodworking machines - Circular sawing machines - Part 7: Single blade log sawing machines with integrated feed table and manual loading and/or unloading79.120.10Lesnoobdelovalni strojiWoodworking machines25.080.60Strojne žageSawing machinesICS:Ta slovenski standard je istoveten z:EN 1870-7:2002SIST EN 1870-7:2002en01-november-2002SIST EN 1870-7:2002SLOVENSKI
STANDARD
SIST EN 1870-7:2002
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1870-7January 2002ICS 79.120.10English versionSafety of woodworking machines - Circular sawing machines -Part 7: Single blade log sawing machines with integrated feedtable and manual loading and/or unloadingSécurité des machines pour le travail du bois - Machines àscier circulaires - Partie 7: Scies circulaires monolames àgrumes à avance intégrée à table et à chargement manuelet/ou déchargement manuelSicherheit von Holzbearbeitungsmaschinen -Kreissägemaschinen - Teil 7: Einblatt-Stammkreissägemaschinen mit mechanischemTischvorschub und Handbeschickung und/oderHandentnahmeThis European Standard was approved by CEN on 5 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 1870-7:2002 ESIST EN 1870-7:2002
EN 1870-7:2002 (E)2ContentspageForeword.31Scope.42Normative references.43Terms and definitions.63.1Terms.63.2Definitions.64List of hazards.135Safety requirements and/or measures.155.1Controls.155.2Protection against mechanical hazards.195.3Protection against non-mechanical hazards.326Information for use.356.1Warning devices.366.2Marking.366.3Instruction handbook.36Annex A (normative)
Saw spindle dimensional tolerances.39Annex B (normative)
Riving knife mounting Strength test.40Annex C (normative)
Riving knife lateral stability test.41Annex D (normative)
Operating conditions for noise emission measurement.42D.1Operating conditions.42D.2General data sheet.44Annex E (informative)
Safe working practice.46Annex ZA (informative)
Relationship of this document with EC Directives.48Bibliography.49SIST EN 1870-7:2002
EN 1870-7:2002 (E)3ForewordThis European Standard has been prepared by Technical Committee CEN /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 July 2002, and conflicting national standards shall be withdrawn at the latest byJuly 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 and D are normative, the annexes E and ZA are informative.The European Standards produced by CEN/TC142 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 1870-7:2002
EN 1870-7:2002 (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 singleblade circular log saw machines with integrated feed and manual loading and/or unloading.This European Standard also includes information to be provided by the manufacturer to the user.Common requirements for tooling are given in EN 847-1.1 ScopeThis European Standard sets out the requirements and describes the method for the removal of hazards or, themeasures that shall be taken to limit the risks on single blade circular log sawing machines with integrated feedtable with manual loading and/or unloading, (hereinafter referred to as machines), designed to cut solid wood.This European Standard does for Computer Numerically Controlled (CNC) machines not cover the hazards relatedto Electro-Magnetic Compatibility (EMC).This European Standard covers the hazards relevant to the machine as stated in clause 4.This European Standard is primarily directed at machines that are manufactured after the date of issue of thisEuropean Standard.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: Basicterminology, methodologyEN 292-2:1991Safety of machinery - Basic concepts, general principles for design - Part 2:Technical principles and specificationsEN 292-2:1991/A1:1995Safety of machinery - Basic concepts general principles for design - Part 2: Technicalprinciples and specificationsEN 847-1Tools for woodworking - Safety requirements - Part 1: Milling tools circular sawbladesEN 954-1:1996Safety of machinery - Safety related parts of control systems - Part 1: Generalprinciples for designEN 982Safety of machinery - Safety requirements for fluid power systems and theircomponents - HydraulicsEN 983Safety of machinery - Safety requirements for fluid power systems and theircomponents – PneumaticsEN 1070:1998Safety of machinery - TerminologySIST EN 1870-7:2002
EN 1870-7:2002 (E)5EN 1088:1995Safety of machinery - Interlocking devices associated with guards - Principles fordesign and selectionEN 60204-1:1992Safety of machinery - Electrical equipment of machines - Part 1: Generalrequirements (IEC 60204-1:1992 modified)EN 60529:1991Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)EN 60825-1Safety of laser products – Part 1: Equipment classification, requirements and users’guide (IEC 60825-1:1993)EN 60947-4-1Low voltage switchgear and controlgear - Part 4-1: Electromechanical contactors andmotor-starters
- Section 1: Electromechanical contactors and motor starters (IEC60947-4-1:1997)EN 60947-5-1:1997Low -voltage switchgear and controlgear - Part 5-1: Control circuit devices andswitching elements - Section 1 : Electromechanical control circuit devices (IEC60947-5-1:1997)EN ISO 3743-1Acoustics - Determination of sound power levels of noise sources using soundpressure - Engineering methods for small moveable sources in reverberant fields -Part 1: Comparison method for hard walled 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 for specialreverberation test rooms (ISO 3743-2:1994)EN ISO 3744Acoustics - Determination of sound power levels of noise sources using soundpressure - Engineering method in an essentially free field over a reflecting plane (ISO3744:1994)EN ISO 3746:1995Acoustics - Determination of sound power levels of noise sourcesusing soundpressure - Survey method using an enveloping measurement surface over areflecting plane (ISO 3746:1995)EN ISO 9614-1Acoustics - Determination of sound power levels of noise sources using soundintensity Part 1: Measurement at discrete points (ISO 9614-1:1993)EN ISO 11202:1995Acoustics - Noise emitted by machinery and equipment - Measurement
of emissionsound pressure levels at the work-station and at other specified positions (ISO11202:1995)EN ISO 11204:1995Acoustics - Noise emitted by machinery and equipment - Measurement of emissionsound pressure levels at a workstation and at other specified positions - Methodrequiring 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 machine tools- Operating conditions for woodworkingmachinesHD 21.1 S3Polyvinyl chloride insulated cables of rated voltages up to and including 450/705V -Part 1: General requirementsHD 22.1 S3Rubber insulated cables of rated voltages up to and including 450/750V - Part 1:General requirementsHD 22.4 S3:1995+A1:1999Rubber insulated cables of rated voltages up to and including 450/750 V
- Part 4:Cords and flexible cables (IEC 60245-4:1994 modified).SIST EN 1870-7:2002
EN 1870-7:2002 (E)63 Terms and definitionsFor the purposes of this European Standard, the terms and definitions given in EN 1070:1998 and the followingapply:3.1 TermsThe main parts of the machine and their terminology are illustrated in Figure 1.Key1Dropping device2Riving knife3Holding-down device4Fence5Feed table6Feed rollers7Controls8Log hookFigure 1 — Terminology3.2 Definitions3.2.1single blade circular log sawing machine with integrated feed table and manual loading and/or unloadinga machine designed for the ripping of solid wood e.g. logs, having the following characteristics :a) integrated feed table;b) sawblade diameter
600 mm;c) the sawblade is mounted on a horizontal spindle below the table;d) the sawblade spindle is in a fixed position.3.2.2stationary machinea machine designed to be located on or fixed to the floor or other parts of the structure of the premises and to bestationary during use3.2.3transportable machinea machine which is located on the floor, stationary during use and equipped with a device, normally wheels, whichallow it to be
moved between locations3.2.4machine actuatora power mechanism used to effect motion of the machine3.2.5integrated feeda feed mechanism for the workpiece (or tool) which is integrated with the machine and where the workpiece (ormachine element with incorporated tool) is (are) held and controlled mechanically during the machining operationSIST EN 1870-7:2002
EN 1870-7:2002 (E)7NOTEThe words in brackets are not applicable to the machines covered by this European Standard3.2.6anti kickback devicea device which either reduces the possibility of kickback or arrests the motion during kickback of the workpiece orparts of it or parts of the machine3.2.7ejectionthe unexpected movement of the workpiece or parts of it or part of
the machine from the machine duringprocessing3.2.8kickbacka particular form of ejection and is describing the unexpected movement of the workpiece or parts of it or parts ofthe machine opposite to the direction of feed during processing3.2.9run-up timethe time elapsed from the actuation of the start control device until the spindle reaches the intended speed3.2.10run-down timethe time elapsed from the actuation of the stop control device up to spindle standstill3.2.11dropping devicedevice designed to remove the sawn workpiece from the integrated feed table (see Figure 2)SIST EN 1870-7:2002
EN 1870-7:2002 (E)8Figure 2 — Example of dropping device (guards not shown)3.2.12log lifterequipment, integral with the machine and which lifts the log from the ground onto the integrated feed table (seeFigure 3)SIST EN 1870-7:2002
EN 1870-7:2002 (E)9Figure 3 — Example of log lifter3.2.13log positionerdevice for horizontal (adjusting) and rotational positioning of the log prior to sawing (see Figure 4).Key1Log adjuster2Log rotatorFigure 4 — Example of log adjuster and rotator3.2.14log delivery devicedevice for loading the log onto the integrated feed table (see Figure 5).SIST EN 1870-7:2002
EN 1870-7:2002 (E)10Figure 5 — Example of log delivery device3.2.15log clampdevice for holding the log at the butt end in position on the integrated feed table during sawing (see Figure 6).SIST EN 1870-7:2002
EN 1870-7:2002 (E)11Figure 6 — Example of log clamp3.2.16log hookdevice to hold the long axis of the log stable during feeding (see Figure 7).Figure 7 — Example of log hookSIST EN 1870-7:2002
EN 1870-7:2002 (E)123.2.17sawblade guidea device to secure the straightness and vibration free functioning of the sawblade (see Figure 8).Key1Riving knife2Sawblade guideFigure 8 — Example of sawblade guide3.2.18holding down devicean adjustable device situated over the sawblade to minimise the risk of uplifted cut-offs from contacting theuppermost teeth of the sawblade (see Figure 9).Key1Holding down device2Riving knifeFigure 9 — Example of holding down device over the sawblade3.2.19confirmationstatements, sales literature, leaflets or other, whereby a manufacturer (supplier) declares either the characteristicsof e.g. a material or product or the compliance of the material or product to a relevant standard.SIST EN 1870-7:2002
EN 1870-7:2002 (E)134 List of hazardsThis European Standard deals with all hazards listed and relevant to the machines defined in the scope : for significant hazards by defining safety requirements and/or measures or by reference to relevant type BEuropean Standards; for hazards which are not significant e.g. general, minor or secondary hazards see relevant type A or Bstandards, especially EN 292-1:1991 and EN 292-2:1991/A1:1995.These hazards are listed in table 1 in accordance with the requirements of Annex A of EN 292-2:1991/A1:1995.SIST EN 1870-7:2002
EN 1870-7:2002 (E)14Table 1 — List of hazardsNumberHazardRelevant sub-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 hazard5.2.3, 5.2.6, 5.2.71.5Drawing-in or trapping hazard5.2.71.6Impact hazard5.2.7, 5.2.81.7Stabbing or puncture hazardNot relevant1.8Friction or abrasion hazardNot relevant1.9High pressure fluid ejection hazard5.3.7, 5.3.81.10Ejection of parts (of machinery and processedmaterials/workpieces)5.2.2, 5.2.3, 5.2.5, 5.2.6, 5.2.7,5.2.81.11Loss 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 phenomena5.3.142.3Thermal radiation or other phenomena such as ejection ofmolten particles and chemical effects from short circuits,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 work environmentNot relevant4Hazards generated by noise resulting in :4.1Hearing losses (deafness), or other physiologicaldisorders (e.g. loss of balance, loss of awareness)5.3.24.2Interference with speech communication, acoustic signalsetc.5.3.25Hazards generated by vibration (resulting in a varietyof neurological and vascular disorders)Not relevant6Hazards generated by radiation, especially by :6.1Electric arcsNot relevant6.2Lasers5.3.136.3Ionising radiation sourcesNot relevant6.4Machines making use of high frequency electrical fieldsNot relevant(continued)SIST EN 1870-7:2002
EN 1870-7:2002 (E)15Table 2 — List of hazards (concluded)NumberHazardRelevant sub-clauses of thisEuropean Standard7Hazards generated by materials and substancesprocessed, used or exhausted by machinery for example :7.1Hazards resulting from contact with or inhalation ofharmful fluids, gases, mists, fumes and dust5.3.37.2Fire or explosion hazard5.3.1, Annex E7.3Biological and microbiological (viral or bacterial hazards)Not relevant8Hazards generated by neglecting ergonomic principles inmachine 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-leganatomyNot relevant8.3Neglect of use of personal protection equipment6.38.4Inadequate area lightingAnnex E8.5Mental overload or underload, stress etcNot relevant8.6Human error6.39Hazard combinationsNot relevant10Hazards 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 control circuits)5.1.710.2Unexpected ejection of machine parts or fluids5.2.2, 5.2.510.3Failure, malfunction of control systems (unexpected startup, unexpected overrun)5.1.1, 5.1.7, 5.1.810.4Errors of fitting6.310.5Overturn, unexpected loss of machine stability5.2.111Hazards caused by (temporary) missing and/or incorrectlypositioned safety related measures/means for 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, 5.1.511.4Safety signs and signals6.211.5All kinds of information and warning devices6.2, 6.311.6Energy supply disconnection devices5.3.1611.7Emergency devices5.1.511.8Feeding/removal means of workpieces5.2.5, 6.311.9Essential equipment and accessories for safe adjustingand/or maintaining5.3.1711.10Equipment evacuating gases etc5.3.35 Safety requirements and/or measuresFor guidance in connection with risk reduction by design, see 3 of EN 292-2:1991/A1:1995 and in addition :5.1 Controls5.1.1 Safety and reliability of control systemsFor the purpose 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 parts (see EN 954-1) of the control systems of this machine are those for : starting (see 5.1.3); normal stopping (see 5.1.4);SIST EN 1870-7:2002
EN 1870-7:2002 (E)16 emergency stopping (see 5.1.5); interlocking (see 5.2.7.1, 5.2.7.2, 5.2.7.4, 5.2.7.5); the braking system (see 5.1.4, 5.1.5); limited movement control device (see 5.2.7.3); hold to run control (see 5.1.6); power operated movement of the fence (see 5.1.3).These control systems shall as a minimum, be designed and constructed in accordance with category 1 as definedin EN 954-1:1996 unless otherwise stated in this European Standard. 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 :i)3 of EN 60947-5-1:1997 for control switches with positive opening operation used as mechanicallyactuated position detectors for interlocking of 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 cables if these cables are additionally protected against mechanicaldamage by positioning (e. g. inside frames);b) electrical principles if they comply with the first four measures listed in clause 9.4.2.1 of EN 60204-1:1992.The circuits shall be either "hardwired", or if electronic components are used in safety related control systemsthey shall be in accordance with 9.4.2.2 (i.e. redundancy with cross-monitoring) or 9.4.2.3 (i.e. diversity) of EN60204-1:1992;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 positive mode and theirarrangement/fastening and the cam design/mounting comply with 5.2 and 5.3 of EN 1088:1995;e) interlocking devices with guard locking if they are at least of the manually operated delay device type inaccordance with annex N of EN 1088:1995;f) pneumatic and hydraulic components and systems if they comply with EN 983 and EN 982 respectively.As an exception, time delay devices used in hardwired control circuits which are designed for at least one millionactuations or the components consisting of the initial manual control of the hold-to-run control may be of category Bin accordance with the requirements of EN 954-1.Verification : by checking the relevant drawings and/or circuit diagrams and inspection of the machine. Forelectrical components by requiring confirmation from the manufacturer of the component which declares conformitywith the relevant standards.5.1.2 Position of controlsAn emergency stop and the controls for workpiece loading, handling, feeding and unloading etc. shall be within 850mm of the operator position (see area marked X in Figure 10), as defined by the manufacturer, and at a height notexceeding 1 800 mm from the operator standing level.The start and normal stop controls may be at the position defined above, but in any case in a position from whichthe dangerous area is visible.The additional emergency stop required by 5.1.5 shall be positioned at the unloading side of the machine and asdefined by area Y in Figure 10.Verification : by checking the relevant drawings, measurement and inspection of the machine.SIST EN 1870-7:2002
EN 1870-7:2002 (E)17Dimensions in millimetresKey1Area Y2Area XR= 850 mm for both handsFigure 10 — Position of controls5.1.3 StartingSee 9.2.5.2 of EN 60204-1:1992 and in addition :For the purpose of this European Standard "safeguards are in place and functional" is achieved by the interlockingarrangements described in 5.2.7 and "operation" means rotation of any saw spindle and/or any powered movementof any workpiece holding device and/or any machine element and/or any feed mechanism.The exceptions described in 9.2.5.2 of EN 60204-1:1992 are not relevant.Power re-positioning of the fence shall not be possible during operation of the cutting stroke of the workpiece feedmechanism.Verification : by checking the relevant drawings and/or circuit diagrams, inspection and relevant functional testing ofthe machine.5.1.4 Normal stoppingA stop control shall be fitted which when actuated cuts power to all machine actuators and actuate the brake (ifprovided).Where a mechanical brake is provided this stop control shall be of category 0 in accordance with 9.2.2 ofEN 60204-1:1992.SIST EN 1870-7:2002
EN 1870-7:2002 (E)18Where an electrical brake is provided this stop control shall be a category 1 stop in accordance with 9.2.2 ofEN 60204-1:1992 and the stopping sequence shall be :a) cut power to all machine actuators and actuate the brake;b) cut power to brake after braking 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 and either time delay shall be fixed or the time delay adjustmentshall be sealed.Verification : by checking relevant drawings and/or circuit diagrams, inspection and relevant functional testing of themachine.5.1.5 Emergency stopSee EN 418 and in addition :Machines shall be fitted with emergency stops which shall conform to 9.2.5.4 and 10.7 of EN 60204-1:1992.Actuating the emergency stop shall stop all machine actuators.On Power Take Off (PTO) driven machines it shall not be possible to operate the machine unless the emergencystop is functional e.g. by mechanical or electrical interlocking between the power source and movements of themachine.Where a mechanical brake is provided this stop control shall be of category 0 in accordance with 9.2.2 ofEN 60204-1:1992.Where an electrical brake is provided this stop control shall be a category 1 stop in accordance with 9.2.2 ofEN 60204-1:1992 and the stopping sequence shall be :a) cut power to all machine actuators and actuate the brake;b) cut power to brake after braking 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 and either time delay shall be fixed or the time delay adjustmentshall be sealed.Verification : by checking relevant drawings and/or circuit diagrams, inspection and relevant functional testing of themachine.5.1.6 Integrated feedThe movement of the integrated feed table and infeed roller shall be controlled by one hand operated hold-to-runcontrol device. The initiation of this hold-to-run control device shall only be possible after the manual release of e.g.a latch. This hold-to-run control device shall be a lever. The direction of the control movement of
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.