SIST EN 1870-7:2002+A1:2009
(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 document deals with the significant hazards, hazardous situations and events as listed in Clause 4 which are relevant to 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 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
Dieses Dokument behandelt alle im Abschnitt 4 aufgeführten signifikanten Gefährdungen, Gefährdungs-situationen und Gefährdungsereignisse, die auf Einblatt Stammkreissägemaschinen mit mechanischem Tischvorschub und Handbeschickung und/oder Handentnahme zutreffen (im Folgenden als Maschinen bezeichnet), die zum Schneiden von Massivholz konstruiert sind."
Diese Europäische Norm behandelt bei Computer-gesteuerten (CNC) Maschinen nicht die im Zusammenhang mit der elektromagnetischen Verträglichkeit (EMVG) bestehenden Gefährdungen.
!gestrichener Text"
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
!Le présent document traite de tous les phénomènes dangereux, situations et événements dangereux significatifs, tels qu'énumérés dans l'Article 4 qui sont pertinents pour 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).
!texte supprimé"
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 à scier circulaires - Partie 7: Scies circulaires monolames à grumes à avance intégrée à table et à 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 1870-7:2002+A1:2009SIST EN 1870-7:2002+A1:2009en01-november-2009SIST EN 1870-7:2002+A1:2009SLOVENSKI
STANDARD
SIST EN 1870-7:2002+A1:2009
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1870-7:2002+A1
September 2009 ICS 79.120.10 Supersedes EN 1870-7:2002English Version
Safety of woodworking machines - Circular sawing machines - Part 7: Single blade log sawing machines with integrated feed table and manual loading and/or unloading
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
Sicherheit von Holzbearbeitungsmaschinen - Kreissägemaschinen - Teil 7: Einblatt-Stammkreissägemaschinen mit mechanischem Tischvorschub und Handbeschickung und/oder Handentnahme This European Standard was approved by CEN on 5 November 2001 and includes Amendment 1 approved by CEN on 30 July 2009.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN 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 translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1870-7:2002+A1:2009: ESIST EN 1870-7:2002+A1:2009
EN 1870-7:2002+A1:2009 (E)
2 Contents page Foreword . 31 Scope . 52 Normative references . 53 Terms and definitions . 73.1 Terms . 73.2 Definitions . 84
!!!!List of significant hazards"""" . 155 Safety requirements and/or measures . 175.1 Controls . 185.2 Protection against mechanical hazards . 215.3 Protection against non-mechanical hazards . 356 Information for use . 406.1 Warning devices . 406.2 Marking . 406.3 Instruction handbook . 41Annex A (normative)
Saw spindle dimensional tolerances . 45Annex B (normative)
Riving knife mounting Strength test . 46Annex C (normative)
Riving knife lateral stability test . 47Annex D (normative)
Operating conditions for noise emission measurement . 48D.1 Operating conditions . 48D.2 General data sheet . 50Annex ZA (informative)
!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC"""" . 53Annex ZB (informative)
!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC"""" . 54Bibliography . 55 SIST EN 1870-7:2002+A1:2009
EN 1870-7:2002+A1:2009 (E) 3
Foreword This document (EN 1870-7:2002+A1:2009) has been prepared by Technical Committee CEN /TC 142, "Woodworking machines - Safety", the secretariat of which is held by UNI. 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 March 2010, and conflicting national standards shall be withdrawn at the latest by March 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document includes Amendment 1, approved by CEN on 2009-07-30. This document supersedes EN 1870-7:2002. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ". !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 the Machinery Directive. For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document." Organisations contributing to the preparation of this European Standard include European Committee of Woodworking Machinery Manufacturers Association "EUMABOIS". Annexes A, B, C and D are normative, the !Annexes ZA and ZB" are informative. !EN 1870 Safety of woodworking machines — Circular sawing machines consists of the following parts: Part 1: Circular saw benches (with and without sliding table), dimension saws and building site saws Part 3: Down cutting cross-cut saws and dual purpose down cutting cross-cut saws/circular saw benches Part 4: Multi-blade rip sawing machines with manual loading and/or unloading Part 5: Circular saw -benches/up-cutting cross-cut sawing machines Part 6: Circular sawing machines for firewood and dual purpose circular sawing machines for firewood/circular saw benches, with manual loading and/or unloading Part 7: Single blade log sawing machines with integrated feed table and manual loading and/or unloading Part 8: Single blade edging circular rip sawing machines with power driven saw unit and manual loading and/or unloading Part 9: Double blade circular sawing machines for cross-cutting with integrated feed and with manual loading and/or unloading Part 10: Single blade automatic and semi-automatic up-cutting cross-cut sawing machines Part 11: Semi-automatic and automatic horizontal cross-cut sawing machines with one saw unit (radial arm saws) SIST EN 1870-7:2002+A1:2009
EN 1870-7:2002+A1:2009 (E)
4 Part 12: Pendulum cross-cut sawing machines Part 13: Horizontal beam panel sawing machines Part 14: Vertical panel sawing machines Part 15: Multi-blade cross-cut sawing machines with integrated feed of the workpiece and manual loading and/or unloading Part 16: Double mitre sawing machines for V-cutting Part 17: Manual horizontal cutting cross-cut sawing machines with one saw unit (manual radial arm saws)" The European Standards produced by CEN/TC142 are particular to woodworking machines and complement the relevant A and B Standards on the subject of general safety (see introduction of
!EN ISO 12100-1:2003" for a description of A, B and C standards). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 1870-7:2002+A1:2009
EN 1870-7:2002+A1:2009 (E) 5
0 Introduction This European Standard has been prepared to be a harmonised standard to provide one means of conforming to the essential safety requirements of the Machinery Directive, and associated EFTA regulations. This European Standard is a type "C“ standard as defined in !EN ISO 12100-1:2003". 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 single blade 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 Scope !This document deals with all significant hazards, hazardous situations and events as listed in Clause 4 which are relevant to 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). !deleted text" This European Standard is primarily directed at machines that are manufactured after the date of issue of this European Standard. 2 Normative references !The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. " !deleted text" !EN 614-1:2006, Safety of machinery — Ergonomic design principles — Part 1: Terminology and general principles" EN 847-1, Tools for woodworking — Safety requirements — Part 1: Milling tools, circular sawblades !EN 894-1:1997, Safety of machinery — Ergonomics requirements for the design of displays and control actuators — Part 1: General principles for human interactions with displays and control actuators EN 894-2:1997, Safety of machinery — Ergonomics requirements for the design of displays and control actuators — Part 2: Displays EN 894-3:2000, Safety of machinery — Ergonomics requirements for the design of displays and control actuators — Part 3: Control actuators" !deleted text" EN 982, Safety of machinery — Safety requirements for fluid power systems and their components — Hydraulics SIST EN 1870-7:2002+A1:2009
EN 1870-7:2002+A1:2009 (E)
6 EN 983, Safety of machinery — Safety requirements for fluid power systems and their components — Pneumatics !EN 1005-1:2001, Safety of machinery — Human physical performance — Part 1: Terms and definitions EN 1005-2:2003, Safety of machinery — Human physical performance — Part 2: Manual handling of machinery and component parts of machinery EN 1005-3:2002, Safety of machinery — Human physical performance — Part 3: Recommended force limits for machinery operation EN 1005-4:2005, Safety of machinery — Human physical performance — Part 4: Evaluation of working postures and movements in relation to machinery EN 1037:1995, Safety of machinery — Prevention of unexpected start-up" !deleted text" EN 1088:1995, Safety of machinery — Interlocking devices associated with guards — Principles for design and selection !EN 50370-1:2005, Electromagnetic compatibility (EMC) — Product family standard for machine-tools —
Part 1: Emission EN 50370-2:2003, Electromagnetic compatibility (EMC) — Product family standard for machine-tools —
Part 2: Immunity" !EN 60204-1:2006", Safety of machinery — Electrical equipment of machines — Part 1: General requirements !(IEC 60204-1:2005, modified) " !EN 60439-1:1999, Low-voltage switchgear and controlgear assemblies — Part 1: Type-tested and partially type-tested assemblies (IEC 60439-1:1999) " EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989) !EN 60825-1:2007, Safety of laser products — Part 1: Equipment classification and requirements (IEC 60825-1:2007)" EN 60947-4-1, !Low-voltage switchgear and controlgear — Part 4-1: Contactors and motor-starters — Electromechanical contactors and motor-starters (IEC 60947-4-1:2000)" !EN 60947-5-1:2004, Low voltage switchgear and control gear – Part 5-1: Control circuit devices and switching elements – Electromechanical control circuit devices (IEC 60947-5-1:2003)" !EN 61310-1:2008, Safety of machinery — Indication, marking and actuation — Part 1: Requirements for visual, acoustic and tactile signals (IEC 61310-1:2007) "
EN ISO 3743-1, !Acoustics — Determination of sound power levels of noise sources — Engineering methods for small, movable sources in reverberant fields — Part 1: Comparison method for hard-walled test rooms (ISO 3743-1:1994) " EN ISO 3743-2, !Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering methods for small, movable sources in reverberant fields — Part 2: Methods for special reverberation test rooms (ISO 3743-2:1994) " EN ISO 3744, Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering method in an essentially free field over a reflecting plane (ISO 3744:1994) SIST EN 1870-7:2002+A1:2009
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!EN ISO 3745, Acoustics — Determination of sound power levels of noise sources using sound pressure — Precision methods for anechoic and hemi-anechoic rooms (ISO 3745:2003)" EN ISO 3746:1995, Acoustics — Determination of sound power levels of noise sources using sound pressure — Survey method using an enveloping measurement surface over a reflecting plane (ISO 3746:1995) EN ISO 9614-1, Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 1: Measurement at discrete points (ISO 9614-1:1993) EN ISO 11202:1995, !Acoustics — Noise emitted by machinery and equipment — Measurement of emission sound pressure levels at a work station and at other specified positions — Survey method in situ (ISO 11202:1995) " EN ISO 11204:1995, Acoustics — Noise emitted by machinery and equipment — Measurement of emission sound pressure levels at a workstation and at other specified positions — Method requiring environmental corrections (ISO 11204:1995) EN ISO 11688-1, Acoustics — Recommended practice for the design of low -noise machinery and equipment — Part 1: Planning (ISO/TR 11688-1:1995) !EN ISO 12100-1:2003, Safety of machinery — Basic concepts, general principles for design — Part 1: Basic terminology, methodology (ISO 12100-1:2003) EN ISO 12100-2:2003, Safety of machinery — Basic concepts, general principles for design — Part 2: Technical principles (ISO 12100-2:2003) " !EN ISO 13849-1:2008, Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design (ISO 13849-1:2006) " !deleted text" ISO 7960:1995, Airborne noise emitted by machine tools — Operating conditions for woodworking machines !HD 21.1 S4, Cables of rated voltages up to and including 450/750 V and having thermoplastic insulation — Part 1: General requirements" !HD 22.1 S4:2002, Cables of rated voltages up to and including 450/750 V and having cross-linked insulation — Part 1: General requirements" !HD 22.4 S4:2004, Cables of rated voltages up to and including 450/750 V and having crosslinked insulation — Part 4: Cords and flexible cables" 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in !EN ISO 12100-1:2003" and the following apply: 3.1 Terms The main parts of the machine and their terminology are illustrated in Figure 1. SIST EN 1870-7:2002+A1:2009
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Key1 Dropping device
2 Riving knife
3 Holding-down device
4 Fence
5 Feed table
6 Feed rollers
7 Controls
8 Log hook Figure 1 — Terminology 3.2 Definitions 3.2.1 single blade circular log sawing machine with integrated feed table and manual loading and/or unloading a 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. 3.2.2 stationary machine a machine designed to be located on or fixed to the floor or other parts of the structure of the premises and to be stationary during use 3.2.3 !!!!displaceable machine"""" a machine which is located on the floor, stationary during use and equipped with a device, normally wheels, which allow it to be
moved between locations 3.2.4 machine actuator a power mechanism used to effect motion of the machine 3.2.5 integrated feed a feed mechanism for the workpiece (or tool) which is integrated with the machine and where the workpiece (or machine element with incorporated tool) is (are) held and controlled mechanically during the machining operation NOTE The words in brackets are not applicable to the machines covered by this European Standard SIST EN 1870-7:2002+A1:2009
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3.2.6 anti kickback device a device which either reduces the possibility of kickback or arrests the motion during kickback of the workpiece or parts of it or parts of the machine 3.2.7 ejection the unexpected movement of the workpiece or parts of it or part of
the machine from the machine during processing 3.2.8 kickback a particular form of ejection and is describing the unexpected movement of the workpiece or parts of it or parts of the machine opposite to the direction of feed during processing
3.2.9 run-up time the time elapsed from the actuation of the start control device until the spindle reaches the intended speed 3.2.10 run-down time the time elapsed from the actuation of the stop control device up to spindle standstill 3.2.11 dropping device device designed to remove the sawn workpiece from the integrated feed table (see Figure 2) SIST EN 1870-7:2002+A1:2009
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Figure 2 — Example of dropping device (guards not shown) 3.2.12 log lifter equipment, integral with the machine and which lifts the log from the ground onto the integrated feed table (see Figure 3) SIST EN 1870-7:2002+A1:2009
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Figure 3 — Example of log lifter 3.2.13 log positioner device for horizontal (adjusting) and rotational positioning of the log prior to sawing (see Figure 4).
Key 1 Log adjuster
2 Log rotator Figure 4 — Example of log adjuster and rotator 3.2.14 log delivery device device for loading the log onto the integrated feed table (see Figure 5). SIST EN 1870-7:2002+A1:2009
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Figure 5 — Example of log delivery device SIST EN 1870-7:2002+A1:2009
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3.2.15 log clamp device for holding the log at the butt end in position on the integrated feed table during sawing (see Figure 6).
Figure 6 — Example of log clamp 3.2.16 log hook device to hold the long axis of the log stable during feeding (see Figure 7). SIST EN 1870-7:2002+A1:2009
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Figure 7 — Example of log hook
3.2.17 sawblade guide a device to secure the straightness and vibration free functioning of the sawblade (see Figure 8).
Key1 Riving knife
2 Sawblade guide Figure 8 — Example of sawblade guide 3.2.18 holding down device an adjustable device situated over the sawblade to minimise the risk of uplifted cut-offs from contacting the uppermost teeth of the sawblade (see Figure 9). SIST EN 1870-7:2002+A1:2009
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Key 1 Holding down device
2 Riving knife Figure 9 — Example of holding down device over the sawblade 3.2.19 !!!!information from the supplier"""" statements, sales literature, leaflets or other, whereby a manufacturer (supplier) declares either the characteristics of e.g. a material or product or the compliance of the material or product to a relevant standard. 4 !!!!List of significant hazards"""" !This clause contains all significant hazards, hazardous situations and events (see EN 1050:1996) as far as they are dealt with in this document, identified by risk assessment as significant for the machines as defined in the scope and which require action to eliminate or reduce the risk. This document deals with these significant hazards by defining safety requirements and/or measures or by reference to relevant standards. These hazards are listed in Table 1 in accordance with Annex A of EN 1050:1996. SIST EN 1870-7:2002+A1:2009
EN 1870-7:2002+A1:2009 (E)
16 Table 1 — List of significant hazards
No Hazards, hazardous situations and hazardous events EN ISO 12100 Relevant sub-clause of this document
Part 1: 2003 Part 2: 2003
1 Mechanical hazards related to: - machine parts or workpieces:
a) shape; 4.2 4.2.1, 4.2.2, 5 5.2.2, 5.2.3, 5.2.5, 5.2.6, 5.2.7, 5.2.8
b) relative location; 5.2.2, 5.2.3, 5.2.5
c) mass and stability (potential energy of elements which may move under the effect of gravity) 5.1.2, 5.2.8
d) mass and velocity (kinetic energy of elements in controlled or uncontrolled motion); 5.1.3, 5.2.1, 5.2.5
e) mechanical strength. 5.2.3, 5.2.5
- accumulation of energy inside the machinery:
g) liquids and gases under pressure; 4.2 4.10, 5.5.4 5.3.7, 5.3.8 1.1 Crushing hazard 4.2.1
5.2.7, 5.2.8 1.2 Shearing hazard 5.2.7, 5.2.8 1.3 Cutting or severing hazard 5.2.2, 5.2.3, 5.2.4, 5.2.7 1.4 Entanglement hazard 5.2.3, 5.2.6, 5.2.7 1.5 Drawing-in or trapping hazard 5.2.7 1.6 Impact hazard 5.2.7, 5.2.8 1.9 High pressure fluid injection or ejection hazard 5.3.7, 5.3.8 2 Electrical hazards due to: 2.1 Contact of persons with live parts (direct contact) 4.3 4.9, 5.5.4 5.3.4, 5.3.16 2.2 Contact of persons with parts which have become live under faulty conditions (indirect contact) 4.3 4.9 5.3.4, 5.3.16 2.4 Electrostatic phenomena 4.3 4.9 5.3.14 4 Hazards generated by noise, resulting in: 4.1 Hearing loss (deafness), other physiological disorders (loss of balance, loss of awareness) 4.5 4.2.2, 5 5.3.2 4.2 Interference with speech communication, acoustic signals.
5.3.2 6 Hazards generated by radiation 6.5 Lasers 4.7
5.3.13 7 Hazards generated by materials and substances (and their constituent elements) processed or used by the machinery SIST EN 1870-7:2002+A1:2009
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7.1 Hazards from contact with or inhalation of harmful fluids and dusts 4.8 4.3b, 4.4
5.3.3 7.2 Fire hazard 4.8 4.4
5.3.1, 6.3 8 Hazards generated by neglecting ergonomic principles in machinery design related to: 8.1 Unhealthy postures or excessive effort 4.9 4.7, 4.8.2, 4.11.12, 5.5.5, 5.5.6 5.1.2 8.2 Hand-arm or foot-leg anatomy 4.9 4.8.3
5.1.2 8.4 Local lighting
4.8.6 6.3 8.6 Human error, human behaviour
4.8, 4.11.8, 4.11.10, 5.5.2, 6 6.3 8.7 Design, location or identification of manual controls
4.8.7, 4.11.8 5.1.2 8.8 Design or location of visual display units
4.8.8, 6.2 5.1.2 10 Unexpected start up, unexpected overrun/overspeed (or any similar malfunction) from: 10.1 Failure/disorder of the control system
4.11, 5.5.4
5.1.1, 5.1.7, 5.1.8 10.2 Restoration of energy supply after an interruption
4.11.4
5.1.7 10.3 External influences on electrical equipment
4.11.11 5.1.1, 5.3.4, 5.3.12 10.6 Errors made by the operator (due to mismatch of machinery with human characteristics and abilities, see 8.6) 4.9 4.8, 4.11.8, 4.11.10, 5.5.2, 6
5.1.1, 5.1.2, 5.3.5, 6.3 11 Impossibility of stopping the machine in the best possible conditions
4.11.1, 4.11.3, 5.5.2
5.1.4, 5.1.5 13 Failure of the power supply
4.11.1, 4.11.4 5.1.7 14 Failure of the control circuit
4.11, 5.5.4
5.1.1 15 Errors of fitting 4.9
4.7, 6.5
6.3 16 Break-up during operation 4.2.2 4.3 5.2.2 17 Falling or ejected objects or fluids 4.2.2 4.3, 4.10
5.2.2, 5.2.3, 5.2.5, 5.2.6, 5.2.7, 5.2.8 18 Loss of stability / overturning of machinery 4.2.2 5.2.6
5.2.1 " 5 Safety requirements and/or measures For guidance in connection with risk reduction by design, see !4.1 of EN ISO 12100-2:2003" and in addition: SIST EN 1870-7:2002+A1:2009
EN 1870-7:2002+A1:2009 (E)
18 5.1 Controls 5.1.1 Safety and reliability of control systems For the purpose of this European Standard a safety related control system is one from and including the initial manual control or position detector to the point of input to the final actuator or element e.g. motor. The safety related parts (see !EN ISO 13849-1") of the control systems of this machine are those for: starting (see 5.1.3); normal stopping (see 5.1.4); 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 defined in !EN ISO 13849-1" 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 60947-5-1:2004" for control switches with positive opening operation used as mechanically actuated 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 S4" for rubber insulated cables; iv) !HD 21.1 S4" for polyvinyl chloride cables if these cables are additionally protected against mechanical damage 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 60204-1:2006". The circuits shall be either "hardwired", or if electronic components are used in safety related control systems they shall be in accordance with 9.4.2.2 (i.e. redundancy with cross-monitoring) or 9.4.2.3 (i.e. diversity) of !EN 60204-1:2006"; c) mechanical components if, for example they operate in the positive mode in accordance with the description given in !4.5 of EN ISO 12100-2:2003"; d) mechanically actuated position detectors for guards if they are actuated in positive mode and their arrangement/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 in accordance with annex N of EN 1088:1995; f) pneumatic and hydraulic components and systems if they comply with EN 983 and EN 982 respectively. SIST EN 1870-7:2002+A1:2009
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As an exception, time delay devices used in hardwired control circuits which are designed for at least one million actuations or the components consisting of the initial manual control of the hold-to-run control may be of category B in accordance with the requirements of !EN ISO 13849-1". Verification: by checking the relevant drawings and/or circuit diagrams and inspection of the machine. !deleted text". !NOTE For components characteristics the information from the component supplier can be useful." 5.1.2 Position of controls An emergency stop and the controls for workpiece loading, handl
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