EN 1218-2:2004+A1:2009

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.SRGDMDQMHPSicherheit von Holzbearbeitungsmaschinen - Zapfenschneid- und Schlitzmaschinen - Teil 2: Doppelseitige Zapfenschneid- und Schlitzmaschinen und/oder Doppelendprofiler mit KettenbandvorschubSécurité des machines pour le travail du bois - Tenonneuses - Partie 2: Machines à tenonner et/ou à profiler à chaîne ou chaînesSafety of woodworking machines - Tenoning machines - Part 2: Double end tenoning and/or profiling machines fed by chain or chains79.120.10Lesnoobdelovalni strojiWoodworking machinesICS:Ta slovenski standard je istoveten z:EN 1218-2:2004+A1:2009SIST EN 1218-2:2004+A1:2009en,fr01-september-2009SIST EN 1218-2:2004+A1:2009SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1218-2:2004+A1
June 2009 ICS 79.120.10 Supersedes EN 1218-2:2004English Version
Safety of woodworking machines - Tenoning machines - Part 2: Double end tenoning and/or profiling machines fed by chain or chains
Sécurité des machines pour le travail du bois - Tenonneuses - Partie 2: Machines à tenonner et/ou à profiler à chaîne ou chaînes
Sicherheit von Holzbearbeitungsmaschinen - Zapfenschneid- und Schlitzmaschinen - Teil 2: Doppelseitige Zapfenschneid- und Schlitzmaschinen und/oder Doppelendprofiler mit Kettenbandvorschub This European Standard was approved by CEN on 24 March 2004 and includes Corrigendum 1 issued by CEN on 20 December 2006 and Amendment 1 approved by CEN on 21 May 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 1218-2:2004+A1:2009: ESIST EN 1218-2:2004+A1:2009

Contents page Foreword . 4Introduction . 51Scope . 62Normative references . 63Terms and definitions . 93.1General . 93.2Terms . 93.3Definitions . 104!!!!List of significant hazards"""" . 115Safety requirements and/or measures . 145.1General . 145.2Controls . 145.2.1Safety and reliability of control systems . 145.2.2Position of controls . 155.2.3Starting . 155.2.4Stop controls . 165.2.5Emergency stop . 175.2.6Integrated feed . 175.2.7Mode selection . 175.2.8Speed changing . 185.2.9Control duplication . 195.2.10Failure of the power supply . 195.2.11Failure of the control circuits . 195.3Protection against mechanical hazards . 195.3.1Stability . 195.3.2Risk of break-up during operation . 195.3.3Tool holder and tool design. 205.3.4Braking . 225.3.5Devices to minimise the possibility or the effect of ejection . 235.3.6Workpiece supports and guides . 235.3.7Prevention of access to moving parts . 245.4Protection against non-mechanical hazards . 315.4.1Fire . 315.4.2Noise . 315.4.3Emission of chips and dust . 335.4.4Electricity . 335.4.5Ergonomics and handling . 335.4.6Lighting . 345.4.7Pneumatics . 345.4.8Hydraulics. 345.4.9!!!!Electromagnetic compatibility"""" . 345.4.10Static electricity . 345.4.11Errors of fitting . 345.4.12Isolation . 355.4.13Maintenance . 356Information for use . 356.1Warning devices . 356.2Marking . 356.3Instruction handbook . 36SIST EN 1218-2:2004+A1:2009

(informative)
Examples of safety related control systems . 39Annex B
(normative)
Tool spindle dimensional tolerances . 43Annex ZA
(informative)
!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC"""" . 45Annex ZB (informative)
!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC"""" . 46Bibliography . 47 SIST EN 1218-2:2004+A1:2009

consists of the following parts: Part 1: Single end tenoning machines with sliding table Part 2: Double end tenoning and/or profiling machines fed by chain or chains Part 3: Hand fed tenoning machines with sliding table for cutting structural timbers Part 4: Edge banding machines fed by chain(s) Part 5: One side profiling machines with fixed table and feed rollers or fed by chain" Organisations contributing to the preparation of this European Standard include European Committee of Woodworking Machinery Manufacturers Association "EUMABOIS". The European Standards produced by CEN/TC 142 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.
1 Scope !This document deals with all the significant hazards, hazardous situations and events as listed in Clause 4 which are relevant to double end tenoning and/or profiling machines fed by chain or chains, hereinafter referred to as the machine, designed to cut solid wood, chipboard, fibreboard or plywood and also these materials where they are covered with plastic laminate or edgings. The workpiece is fed passed the tools by an integrated feed." !deleted text" This document does not apply to: a) double end tenoning and/or profiling machines fed by chain or chains with a complete enclosure as defined in 3.3.11; b) transportable machines. This document does not deal with any hazards relating to: c) mechanical loading of the workpiece to a single machine; or d) single machine being used in combination with any other machine (as part of a line); or e) use of tools working between the machine halves (see 3.1); or f) use of laser. For Computer Numerically Controlled (CNC) machines this document does not cover hazards related to Electro-Magnetic Compatibility (EMC). NOTE 1 The requirements of this document apply to all machines whatever their method of control e.g. electromechanical and/or electronic. This document is primarily directed to machines which are manufactured after the date of publication by CEN. NOTE 2 Single end tenoning machines with sliding table are dealt with in EN 1218-1:1999. Single end tenoning machines where the tenon is produced only by means of saw blades are dealt with in EN 1218-3. Single end profiling machines fed by chain or chains are dealt with in EN 1218-5. 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 847-1:2005, Tools for woodworking — Safety requirements — Part 1: Milling tools, circular saw blades" !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 SIST EN 1218-2:2004+A1:2009

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 60947-4-1:2001", 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 controlgear — 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)" SIST EN 1218-2:2004+A1:2009

123423 Key
1 Machine half 2 Top pressure beams 3 Chain beams 4 Feed cross drive shaft Figure 1 — Terminology 3.3 Definitions 3.3.1 double end tenoning and/or profiling machine fed by chain or chains woodworking machine primarily designed for production of tenons and/or profiles on opposing ends of a workpiece in one pass. The tenons and/or profiles are cut by means of milling tools, saw blade(s) and/or sanding units mounted on one or more spindles on each machine half. The workpiece is presented by means of a chain or chains using pads and/or dogs mounted on a continuous chain belt or similar conveyor 3.3.2 machine half part of a machine consisting of a frame, chain beam, top pressure beam and working units. Each machine half processes one, different, end of the workpiece. One or both machine halves move to accept workpieces of different dimensions 3.3.3 profile shaping of an edge of a workpiece by milling tools, saw blades and/or sanding units. Profiling also includes panel sizing 3.3.4 integrated feed feed mechanism for the workpiece or tool which is integrated with the machine and where the workpiece or machine element with incorporated tool are held and controlled mechanically during the machining operation 3.3.5 ejection unexpected movement of the workpiece or parts of it or part of the machine from the machine during processing SIST EN 1218-2:2004+A1:2009

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 5.3.3, 5.3.7, 5.4.5, 6.3
b) relative location; 5.2.2, 5.2.5, 5.3.7
d) mass and velocity (kinetic energy of elements in controlled or uncontrolled motion); 5.2.7, 5.3.5, 5.3.7
e) mechanical strength. 5.3.2, 5.3.3
- accumulation of energy inside the machinery:
g) liquids and gases under pressure; 4.2 4.10, 5.5.4 5.4.7, 5.4 8 1.1 Crushing hazard 4.2.1
5.3.7 1.2 Shearing hazard 5.3.7 1.3 Cutting or severing hazard 5.3.2, 5.3.3, 5.3.4, 5.3.7 1.4 Entanglement hazard 5.3.3, 5.3.4, 5.3.6, 5.3.7 1.5 Drawing-in or trapping hazard 5.3.7.1 1.6 Impact hazard 5.3.7 1.9 High pressure fluid injection or ejection hazard 5.3.4, 5.4.7, 5.4.8 2 Electrical hazards due to: 2.1 Contact of persons with live parts (direct contact) 4.3 4.9, 5.5.4 5.4.4, 5.4.6, 5.4.12, 5.4.13 2.2 Contact of persons with parts which have become live under faulty conditions (indirect contact) 4.3 4.9 5.4.4, 5.4.6, 5.4.12, 5.4.13 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 5.4.2 4.2 Interference with speech communication, acoustic signals.
5.4.2 7 Hazards generated by materials and substances (and their constituent elements) processed or used by the machinery 7.1 Hazards from contact with or inhalation of harmful fluids and dusts 4.8 4.3b, 4.4
5.4.3, 6.3 7.2 Fire hazard 4.8 4.4
5.4.1, 5.4.3 8 Hazards generated by neglecting ergonomicprinciples 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 5.2.2, 5.4.5, 6.3 8.2 Hand-arm or foot-leg anatomy 4.9 4.8.3
5.2.2, 5.4.5, 6.3 8.4 Local lighting
4.8.6 5.4.6, 6.3 8.6 Human error, human behaviour
4.8, 4.11.8, 4.11.10, 5.5.2, 6 6.3 SIST EN 1218-2:2004+A1:2009

4.8.7, 4.11.8 5.2.2 8.8 Design or location of visual display units
4.8.8, 6.2 5.2.2 9 Combination of hazards 4.11
5.2.6, 5.2.7 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
5.2.1, 5.2.11 10.2 Restoration of energy supply after an interruption
4.11.4
5.2.10, 5.3.3.7 10.3 External influences on electrical equipment
4.11.11 5.4.4, 5.4.9 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
5.2.1, 5.4.5, 6.3 11 Impossibility of stopping the machine in the best possible conditions
4.11.1, 4.11.3, 5.5.2
5.2.2, 5.2.4, 5.2.9 13 Failure of the power supply
4.11.1, 4.11.4 5.2.10 14 Failure of the control circuit
4.11, 5.5.4
5.2.11 15 Errors of fitting 4.9
4.7, 6.5
5.4.11, 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
5.2.6, 5.2.8, 5.3.2, 5.3.3, 5.3.5, 5.3.6, 5.4.12 18 Loss of stability / overturning of machinery 4.2.2 5.2.6
5.3.1 " SIST EN 1218-2:2004+A1:2009

5 Safety requirements and/or measures 5.1 General The machine shall comply with the safety requirements and/or protective measures of this clause. In addition, the machine shall be designed in accordance with the principles of Clause 5 of EN ISO 12100-1:2003 for hazards relevant but not significant, which are not dealt with by this document (e.g. sharp edges). For guidance in connection with risk reduction by design, see Clause 4 of EN ISO 12100-2:2003, and for safeguarding measures, see Clause 5 of EN ISO 12100-2:2003. 5.2 Controls 5.2.1 Safety and reliability of control systems For the purposes of this document 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 control systems of this machine are those for:  starting (see 5.2.3);  normal stopping (see 5.2.4);  emergency stop (see 5.2.5);  moveable interlocked guards (see 5.3.7);  moveable interlocked guards with guard locking (see 5.3.7);  trip device, limiting device and hold-to-run control devices required in 5.3.7.3;  mode selection (see 5.2.7);  integrated feed (see 5.2.6);  step less speed changing (see 5.2.8);  spindle unit locking (see 5.3.3.4);  braking (see 5.2.4, 5.2.5, 5.3.4). Unless otherwise stated in this document these control systems shall, as a minimum, be designed and constructed in accordance with category 1 as defined in !EN ISO 13849-1:2008". For the purposes of this document "well tried components and principles" means: a) electrical components if they comply with relevant standards including the following as: 1) !EN 60947-5-1:2004" (section 3) for control switches with positive opening operation used as mechanical actuated position detectors for interlocking guards and for relays used in auxiliary circuits; 2) !EN 60947-4-1:2001" for electromechanical contactors and motor-starters used in main circuits; 3) !HD 22.1 S4:2002" for rubber-insulated cables; SIST EN 1218-2:2004+A1:2009

!EN 60204-1:2006". The circuits shall be either “hardwired”, or if electronic components are used in safety related control systems “well tried” is fulfilled if they are in accordance with the requirements of
9.4.2.2 (i.e. redundancy with cross-monitoring) or 9.4.2.3 (i.e. diversity) of
!EN 60204-1:2006" (see Annex A for examples of safety related control systems); 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 the positive mode and their arrangement/fastening and the cam design/mounting comply with the requirements of 5.2 and 5.3 of EN 1088:1995; e) interlocking devices with guard locking if they satisfy the requirements of 5.3.7.1; f) pneumatic and hydraulic components and systems if they comply with the requirements of
EN 983:1996 and EN 982:1996 respectively. As an exception, time delay devices used in hardwired safety related control circuits which are designed for at least 1 million actuations and the components consisting of the initial manual control of the hold-to-run control device may be of category B in accordance with the requirements of !EN ISO 13849-1:2008". In addition the control system for stepless speed changing shall be as a minimum designed and constructed in accordance with the following principles: The actual speed or exit frequency can be converted in a comparator, e.g. by the electronic system, and can there be compared either by the inverter itself or by an external comparator with the selected frequency. Verification : By checking the relevant drawings and/or circuit diagrams and inspection on the machine. !deleted text" !NOTE For components characteristics the information from the component supplier can be useful." 5.2.2 Position of controls The main control devices of the machine for starting the tool spindles, normal stopping, beam movement and mode selection, shall be located together and situated at a position from which the loading area can be seen. Where controls are located on a separate control desk, their position shall be indicated by the machine manufacturer in the instruction handbook (see 6.3). Hold-to-run control devices shall be located so that the operator, when actuating them, can see the controlled movements (also see 5.2.7.2d)). For the position of emergency stop controls see 5.2.5. Where a mobile set of controls is used, it shall be connected by cable to the machine. Verification :
By checking the relevant drawings and/or circuit diagrams, inspection and relevant functional testing of the machine. 5.2.3 Starting Before starting or restarting the machine all the safeguards shall be in place and functional. This is achieved by the interlocking arrangements described in 5.3.7. Start or restart shall only be possible by actuation of the start control device provided for that purpose. SIST EN 1218-2:2004+A1:2009

9.2.2 of !EN 60204-1:2006", where the “safety and/or functional” requirements of the machine are fulfilled by avoiding impact between the workpiece and running down or stationary tools and allows power to be maintained to the electrical brake (if provided) until the braking sequence is complete. The above requirements shall be satisfied at the level of control circuits. If a time-delay device is used, the time delay shall at least be more than the maximum run-down time of the machine, and either the time delay shall be fixed or the adjustment mechanism shall be sealed. If the emergency stop provided by virtue of 5.2.5 also achieves at least the above requirements, then the emergency stop can be regarded as fulfilling the requirements of the normal stop control. In this case precautions shall be taken to prevent automatic or unexpected restarting (also see 7.5 of
!EN 60204-1:2006",). Verification : By checking the relevant drawings and/or circuit diagrams, inspection and relevant functional testing of the machine. 5.2.4.2 All other stop controls Any other stop controls provided shall be of category 0, 1 or 2 in accordance with the requirements of
!EN 60204-1:2006", depending upon their intended function. If a category 2 stop control is used and it is active in the setting mode for all movements or in machining mode only for the feed, it shall fulfil all the safety requirements associated with the particular mode. When initiated, the stopping sequence shall be: a) stop the axes movements; b) stop spindle rotation and actuate the brake (if provided); c) when braking sequence is complete, cut power to brake (if electrical brake is fitted). Unexpected start up of all movements in the setting mode or the feed movement in the machining mode shall be prevented in accordance with the requirements of EN 1037:1995. Where it is not possible to cut power to all machine actuators, standstill monitoring in accordance with the requirements of 6.4 of EN 1037:1995 is necessary. In case of a failure the standstill monitoring system shall cut the power to these movements. Verification : By checking the relevant drawings and/or circuit diagrams, inspection and relevant functional testing of the machine. SIST EN 1218-2:2004+A1:2009

EN ISO 12100-2:2003; e) movement of the feed shall be controlled by a hold-to-run control device (also see 5.2.2). The feed and the tool spindles shall stop if the hold-to-run control for the feed is continuously activated for more than 5 min. The hold-to run control device shall only be located on a mobile set of controls; f) powered adjustment shall be controlled by a hold-to-run control device (also see 5.2.2); g) some or all of the tool spindles may run after intentional starting. When intentional starting in the adjusting mode is possible, the area around the tool shall be visible to the operator; h) a deterring/impeding device(s) shall be fitted as necessary to prevent horizontal access from inside the enclosure. For materials and properties of this device see 5.3.2. Verification : By checking the relevant drawings and/or circuit diagrams, inspection and relevant functional testing of the machine. 5.2.7.3 Mode selection for fine adjustment of the tools whilst they and the feed are running during machining A mode selection switch may be provided for fine adjustment of the tools. If a mode selection switch is provided, the following requirements shall apply: a) in the fine adjustment mode the normal (automatic) control mode shall be disabled; b) its use shall not initiate any adjustment; c) it shall be lockable, e.g. by a key-operated switch in accordance with the requirements of 4.11.10 of
EN ISO 12100-2:2003; d) overriding of the interlocking of a single door, not more than 2,0 m long, a single time shall be permitted for a maximum period of 3 min. The feed and tools shall stop if this time limit is exceeded; e) a deterring/impeding device(s) shall be fitted as necessary to prevent horizontal access to any rotating tool from inside the enclosure. For materials and properties of the device see 5.3.2. Also see 5.2.2 and 5.3.7. Verification : By checking the relevant drawings and/or circuit diagrams, measurement, inspection and relevant functional testing of the machine. 5.2.8 Speed changing On machines fitted with a device (e.g. a frequency inverter) for infinitely variable (step-less) speed changing for tool spindles, the device shall be such that it does not allow the actual speed to exceed the selected speed by more than 10 %. The actual speed or exit frequency can be converted in a comparator e.g. by the electronic system and can there be compared with the selected value either by the inverter itself or by an external comparator (also see 9.4.2 of !EN 60204-1:2006" an
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