SIST EN 12622:2010

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Sicherheit von Werkzeugmaschinen - Hydraulische GesenkbiegepressenSécurité des machines-outils - Presses plieuses hydrauliquesSafety of machine tools - Hydraulic press brakes25.120.10Kovaški stroji. Stiskalnice. ŠkarjeForging equipment. Presses. ShearsICS:Ta slovenski standard je istoveten z:EN 12622:2009SIST EN 12622:2010en01-januar-2010SIST EN 12622:2010SLOVENSKI
STANDARDSIST EN 12622:20021DGRPHãþD



SIST EN 12622:2010



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12622
November 2009 ICS 25.120.10 Supersedes EN 12622:2001English Version
Safety of machine tools - Hydraulic press brakes
Sécurité des machines-outils - Presses plieuses hydrauliques
Sicherheit von Werkzeugmaschinen - Hydraulische Gesenkbiegepressen This European Standard was approved by CEN on 17 October 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 12622:2009: ESIST EN 12622:2010



EN 12622:2009 (E) 2 Contents Page Foreword .4Introduction .51Scope .62Normative references .63Terms, definitions and abbreviations .93.1Terms and definitions .93.2Abbreviations . 124List of significant hazards . 125Safety requirements and/or measures . 155.1Protection of mechanical hazards . 155.1.1Description of the safeguarding of access to moving parts . 155.1.1.1General . 155.1.1.2Fixed enclosing guards . 155.1.1.3Interlocking guards with or without guard locking . 155.1.1.4ESPE using AOPD . 165.1.1.5Laser actuated AOPD . 205.1.1.6Hold to run control . 225.1.1.7Scanner systems . 225.1.1.8ESPE using AOPD when used in automatic cycle as a trip device . 235.1.2Location of the safeguarding of access to moving parts . 245.1.2.1Prevention of access from the front. 245.1.2.2Prevention of access from the sides . 255.1.2.3Prevention of access from the rear . 255.2Control systems . 265.2.1General . 265.2.2Manual control devices . 265.2.3Failure of power supply . 265.2.4Protection against external influences . 265.2.5Safety functions . 265.2.5.1General . 265.2.5.2Behaviour of the control system in case of failure . 335.2.5.3Stop or hold to stop closing stroke of the beam . 345.2.5.4Stop back gauges. 345.2.5.5Back gauges movement limitation . 345.2.5.6Stop work-piece support movement . 355.2.5.7Slow speed . 355.2.5.8Muting . 355.2.5.9Blanking . 365.2.5.10Emergency stop . 365.2.5.11Mode selection . 365.2.5.12Single stroke function . 375.2.6Other functions . 375.2.6.1Start . 375.2.6.2Restart . 375.2.6.3Reset . 385.2.6.4Normal stop . 385.2.7Use of electronic components . 385.2.7.1Access to the NC program . 385.2.7.2Use of PES for safety functions . 385.3Mode of operation . 395.3.1Description of the various modes of operation . 395.3.2Setting mode . 395.3.3Production modes . 395.3.3.1Single cycle manual load and/or unload . 39SIST EN 12622:2010



EN 12622:2009 (E) 3 5.3.3.2Automatic cycle with automatic load and unload . 405.4Basic design considerations . 405.4.1Stability . 405.4.1.1Prevention of unintended gravity fall of the beam (down stroking press brakes) . 405.4.1.2Stability of the press brake . 405.4.1.3Stability of the work piece . 405.4.2Risk of break up during operation . 405.4.3Tool holder and tool design . 415.4.4Access to raised work stations or platforms . 415.4.5Slips, trips and falls . 415.4.6Release of trapped persons . 415.4.7Guarding of drives, transmission machinery and ancillary devices . 415.5Protection against non-mechanical hazard . 425.5.1Noise . 425.5.2Electrical hazards . 435.5.3Ergonomic and handling. 435.5.4Hydraulic and pneumatic systems . 435.5.4.1General . 435.5.4.2Valves . 445.5.4.3Hydraulic systems . 445.5.5Thermal hazards . 455.5.6Hazards generated by materials and substances . 455.5.7Hazards generated by lasers . 455.5.8High pressure fluid ejection hazards . 455.5.9Isolation and energy dissipation . 455.5.10Maintenance . 455.5.11Errors of fitting . 456Verification of the safety requirements and/or protective measures . 467Information for use . 487.1Marking . 487.2Instruction handbook . 497.3Commercial informations . 50Annex A (normative)
Calculation of minimum safety distances . 51Annex B (normative)
The overall response time of the press brake stopping performance . 53Annex C (informative)
Example of redundant and monitored hydraulic control circuits for a down-stroking press brake . 54Annex D (normative)
Conditions for noise measurement of press brakes . 55Annex E (informative)
Side safeguarding for manually fed press brakes . 56Annex F (informative)
Markings . 57Annex G (normative)
Laser actuated AOPD system tests . 58Annex H (informative)
Bending speed . 59Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42 . 61Bibliography . 62 SIST EN 12622:2010



EN 12622:2009 (E) 4 Foreword This document (EN 12622:2009) has been prepared by Technical Committee CEN/TC 143 “Machine tools - Safety”, the secretariat of which is held by SNV. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2010, and conflicting national standards shall be withdrawn at the latest by May 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 supersedes EN 12622:2001. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. This European Standard constitutes a revision of EN 12622:2001 for which it has been technically revised. The main modifications are listed below:  complete reorder of Clause 5 "Safety requirements and/or measures";  description of safety functions and its safety related part of control systems with categories assignated and /or performance levels required (see Tables 2 and/or 3);  addition of subclause 5.2.7 on the use of programmable electronic components (PES);  addition of subclause 5.3.3 concerning production mode;  addition of new safety functions and new safety devices: a stop work-piece support movement (see 5.2.5.6), monitoring of slow speed (see 5.2.5.7), laser actuated AOPD (see 5.1.1.5), AOPDDR scanner systems (see 5.1.1.7.1) and ESPE using AOPD used in automatic cycle as a trip device (see 5.1.1.8).
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 the United Kingdom.
SIST EN 12622:2010



EN 12622:2009 (E) 5 Introduction This European Standard is a C type standard as defined in EN ISO 12100-1:2003. The machinery concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the scope of this standard. When provisions of this C type standard are different from those which are stated in A or B standards, the provision of this C type standard take precedence over the provisions of the other standards for machines that have been designed and built according to the provisions of this C type standard. In addition, press brakes comply as appropriate with EN ISO 12100-1 and EN ISO 12100-2 for hazards which are not covered by this standard. The requirements of this European Standard concern designers, manufacturers, suppliers and importers of machines described in the scope. This European Standard also includes information to be provided by the manufacturer to the user. SIST EN 12622:2010



EN 12622:2009 (E) 6 1 Scope This European Standard specifies technical safety requirements and protective measures to be adopted by persons undertaking the design, manufacture and supply of hydraulic press brakes which are designed to work cold metal or material partly of metal and hereafter referred to as machines. This European Standard also covers hydraulic press brakes, whose primary intended use is the cold working of metal, which are to be used in the same way to work other sheet materials such as cardboard or plastic. The requirements in this European Standard take account of intended use, including foreseeable misuse as defined in 3.22 of EN ISO 12100-1:2003. This European Standard presumes access to the press brake from all directions, deals with the hazards described in Clause 4, and specifies the safety measures for both the operator and other exposed persons. This European Standard also applies to:  ancillary devices which are an integral part of the press brake, e.g. back gauges and adjustable front sheet supports;
 machines which are integrated into an automatic production line where the hazards and risk arising are comparable to those of machine working separately. The requirements of this European Standard apply to all hydraulic press brakes whatever the technology used in their control system, e.g. electromechanical and/ or electronic. This European Standard does not apply to machines whose principal designed purpose is: a) sheet folding by rotary action; b) tube and pipe bending by rotary action; c) roll bending. This European Standard applies to machines built after the date of issue of this European Standard. This European Standard does not cover the safety aspect of automatic loading and unloading equipment. Some guidance how to take into account additional automatic loading and unloading equipment can be found in ISO 11161. 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. EN 349, Safety of machinery — Minimum gaps to avoid crushing of parts of the human body EN 574:1996, Safety of machinery — Two-hand control devices — Functional aspects — Principles for design EN 614-1, Safety of machinery — Ergonomic design principles — Part 1: Terminology and general principles EN 894-1, 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, Safety of machinery — Ergonomics requirements for the design of displays and control actuators — Part 2: Displays EN 894-3, Safety of machinery — Ergonomics requirements for the design of displays and control actuators — Part 3: Control actuators SIST EN 12622:2010



EN 12622:2009 (E) 7 EN 953:1997, Safety of machinery — Guards — General requirements for the design and construction of fixed and movable guards EN 954-1, Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design EN 982:1996, Safety of machinery — Safety requirements for fluid power systems and their components — Hydraulics EN 983:1996, Safety of machinery — Safety requirements for fluid power systems and their components — Pneumatics
EN 999:1998, Safety of machinery — The positioning of protective equipment in respect of approach speeds of parts of the human body EN 1005-1, Safety of machinery — Human physical performance — Part 1: Terms and definitions EN 1005-2, Safety of machinery — Human physical performance — Part 2: Manual handling of machinery and components parts of machinery EN 1005-3, Safety of machinery — Human physical performance — Part 3: Recommended force limits for machinery operation EN 1005-4, 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 EN 1088:1995, Safety of machinery — Interlocking devices associated with guards — Principles for design and selection EN 1837, Safety of machinery — Integral lighting of machines EN 50370-1, Electromagnetic compatibility (EMC) — Product family standard for machine tools — Part 1: Emission EN 50370-2, 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 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 60947-5-1:2004, Low-voltage switchgear and controlgear — Part 5-1: Control circuit devices and switching elements — Electromechanical control circuit devices (IEC 60947-5-1:2003) EN 60947-5-3, Low-voltage switchgear and controlgear — Part 5-3: Control circuit devices and switching elements — Requirements for proximity devices with defined behaviour under fault conditions (PDF)
(IEC 60947-5-3:1999) EN 61310-2, Safety of machinery — Indication, marking and actuation — Part 2: Requirements for marking (IEC 61310-2:2007) EN 61496-1:2004, Safety of machinery — Electro-sensitive protective equipment — Part 1: General requirements and tests (IEC 61496-1:2004, modified) EN 62061:2005, Safety of machinery — Functional safety of safety-related electrical, electronic and programmable electronic control systems (IEC 62061:2005) EN ISO 3744:1995, 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 12622:2010



EN 12622:2009 (E) 8 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 4871:1996, Acoustics — Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996) EN ISO 9614 (all parts), Acoustics — Determination of sound power levels of noise sources using sound intensity (ISO 9614) 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 11688-1:1998, Acoustics — Recommended practice for the design of low-noise machinery and equipment — Part 1: Planning ((ISO/TR 11688-1:1995) EN ISO 11688-2, Acoustics — Recommended practice for the design of low-noise machinery and equipment — Part 2: Introduction to the physics of low-noise design (ISO/TR 11688-2:1998) 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 13732-1, Ergonomics of the thermal environment — Methods for the assessment of human responses to contact with surfaces — Part 1: Hot surfaces (ISO 13732-1:2006) EN ISO 13849-1:2008, Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design (ISO 13849-1:2006) EN ISO 13849-2, Safety of machinery — Safety-related parts of control systems — Part 2: Validation ((ISO 13849-2:2003) EN ISO 13850, Safety of machinery — Emergency stop — Principles for design (ISO 13850:2006) EN ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by the upper and lower limbs (ISO 13857:2008) EN ISO 14121-1, Safety of machinery — Risk assessment — Part 1: Principles (ISO 14121-1:2007) EN ISO 14122-1, Safety of machinery — Permanent means of access to machinery — Part 1: Choice of fixed means of access between two levels (ISO 14122-1:2001) EN ISO 14122-2, Safety of machinery — Permanent means of access to machinery — Part 2: Working platforms and walkways (ISO 14122-2:2001) EN ISO 14122-3, Safety of machinery — Permanent means of access to machinery — Part 3: Stairs, stepladders and guard-rails (ISO 14122-3:2001) EN ISO 14122-4, Safety of machinery — Permanent means of access to machinery — Part 4: Fixed ladders (ISO 14122-4:2004) EN ISO 14738, Safety of machinery — Anthropometric requirements for the design of workstations at machinery (ISO 14738:2002)
CLC/TS 61496-2:2006, Safety of machinery — Electro-sensitive protective equipment — Part 2: Particular requirements for equipment using active opto-electronic protective devices (AOPDs) (IEC 61496-2:2006) CLC/TS 61496-3, Safety of machinery — Electro-sensitive protective equipment — Part 3: Particular requirements for Active Opto-electronic Protective Devices responsive to Diffuse Reflection (AOPDDR)
SIST EN 12622:2010



EN 12622:2009 (E) 9 3 Terms, definitions and abbreviations 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 12100-1:2003 and the following apply. 3.1.1 beam main reciprocating press brake member which normally holds the punch on a down-stroking press brake, and which normally holds the die on an up-stroking press brake 3.1.2 blanking optional function that permits an object of a size greater than the detection capability of the ESPE to be located within the detection zone without causing an OFF-state of the OSSD(s) [EN 61496-1:2004, definition 3.1] NOTE 1 Fixed blanking is a technique wherein the locations of the blanked areas of the detection zone do not change during operation. The detection capability of the other parts of the detection zone remains unchanged. NOTE 2 Floating blanking is a technique wherein the blanked area of the detection zone follows the location of a moving object(s) during operation. The detection capability of the other areas remains unchanged. 3.1.3 automatic cycle operating mode where the operating cycle is repeated continuously or intermittently, all functions achieved without manual intervention after initiation 3.1.4 operating cycle movement completed by the moving part of the tools from the cycle start position to the bottom dead centre and back to the cycle stop position
NOTE 1 The operating cycle i
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