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SAFETY APPLICATION HANDBOOK

SAFETY APPLICATION HANDBOOK
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Safety Application Handbook OMRON Europe B.V, 2003 OMRON reserve the right to alter or amend information contained in this handbook without prior notice and no responsibility can be accepted for errors or omissions. Safe installation and operation of OMRON products remains the responsibility of the user. The contained diagrams circuits and recommendations are only general information. The user must take responsibility for his specific application according the legal obligations in the country of intended usage, and all pertaining state or Federal Bylaws that may be applicable. Disclaimer >...

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Content page Chapter - 1 1.0 Background of this Handbook 1 1.1 Necessity of machine safety 1 1.2 Targeted Audience 1 Chapter - 2 ֖ 2.0 Safety Basics 2 2.1 European Legislation 2 2.2 CE Certification 2 2.3 Machine Directive 2 2.3.1 Essential safety requirements 3 2.4 Harmonised European standards 3 2.5 Product liability 5 Chapter - 3 3.0 Ensure safety 6 3.1 Risk assessment 6 3.2 Categories 7 3.3 Failure analysis 8 3.4 Validation 10 3.5 Documentation 11 Chapter - 4 ֖ 4.0 E-Stop applications 11 4.1 Standards for E-Stop function 12 EN 418, EN 60204, EN 1037 4.2 Requirements for E-Stop 12 4.3...

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Chapter - 6 6.0 Two hand controlling 24 6.1 EN574 and EN999, relevant standards 24 6.1.1 EN 574, Basic Requirements 24 for two hand control devices 6.1.2 EN 999, Calculation of the required safety distance 27 6.2 Requirement for 2-Hd controller 28 6.3 Schematics 28 6.3.1 Standard Two-Hand control circuit 6.3.2 Two-Hand control circuit with the 29 possibility to add a second two-hand station 6.3.3 Two-Hand control circuit with the 30 possibility to switch to an alternative safety door 6.4 OMRON Products for 2 Hand applications 31 Chapter - 7 ֖ 7. Light curtains 32 7.1 EN 61496, EN 999 32...

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1.0 Background of this Handbook The European Union is one of the most important industrial areas worldwide. By doing their daily work 4,8% of workers become injured by industrial accidents (approximately 10 Million persons). Serious and lethal accidents happen to 0,17% of the workers (8000 person are killed per year). The reasons for these accidents on one hand are human negligence and insufficient safety of machinery on the other hand. To improve the safety level and to eliminate barriers of trade within the European Community the treaty of Maastricht initialised the harmonised EC...

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2.0 Safety Basics The Member States of the European Communities (EC) this name was changed when the Treaty establishing the ֓European Union (EU) was signed in the Maastricht On 7. Febr., 1992- unanimously agreed from the very beginning that the safety re-quirements for numerous products in the Member States (and also in the countries belonging to the European Economic Area Ԗ EEA) have to be harmonised. This common view point resulted in Article 100a. Article 100a has been replaced by Article 95 of the Treaty of Amsterdam. This chapter will give an overview on the legal background of safety....

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2.3.1 Essential safety requirements The essential health and safety requirements laid down in this Directive are mandatory. However, taking into account the state of the art, it may not be possible to meet the objectives set by them. In this case, the machinery must as far as possible be designed and constructed with the purpose of approaching those objectives. The danger zoneӔ means any zone within and / or around machinery in which an exposed person is subject to a risk to his health or safety. The exposed personӔ means any person wholly or partially in a danger zone. The operatorӔ means...

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The harmonized European safety standards have hierarchy: - Type A standards (fundamental safety standards) give basic concepts, principles for design and general aspects that can be applied to all machinery. > Type C- Standard Machine Safety standard - Type B standards (group safety standards) deal with one safety aspect or one type of safety related device that can be used across a wide range of machinery. A distinction is made between: > EN 201: Injection Moulding machines EN 692: Mechanical presses EN 693: Hydraulic presses Type B- Standard Group safety standards - Type B1 standards on...

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2.5 Product liability The General Product Safety Directive and the Product Liability Directive are complementary regulations but their scope is not identical. For instance, the General Product Safety Directive states that even if a product does not conform to the directive and an action is taken against the manufacturer, the violation does not automatically mean the product is defective under the Product Liability Directive. However, a manufacturer could reasonable assume that a breach of the General Product Safety Directive would convince a court to include that the manufacturer was liable...

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3.0 Ensure safety The responsible machine or process designer no longer considers the production requirements and adds safety systems later, but addresses the two issues as a whole. Legislation demands that the machine or process design meets the necessary safety standards and regulations it is a legal requirement Different Types of machines will have different levels of associated risk these risk levels need to addressed for the whole machine life span. In particular the requirements at the design stage, application / usage stage and destruction of the machine Risk assessment according to...

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Frequency of exposure. Step 4 Risk Evaluation & Reduction Determination of whether the level of risk is acceptable. Prioritisation of the implementation of control measures. Step 5 Risk Reduction Eliminate or reduce exposure to hazard as far as practical Reduce the probability and severity. Use safe guards and safety devices. Determine the performance and functional characteristics of the safety measures are suitable for the machine and its use. 3.2 Categories > START Desertion of the limits of machinery Hazard identification Risk estimation Risk evaluation > Is the machine safe? EN 954...

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