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Useful Information

Regulatory Hints


© 2022 MERLINO elettronica

In recent years, important changes have been introduced in the European legislative and regulatory landscape, relating to the safety of machinery and safety components. In particular, the Community Directives "Electromagnetic Compatibility 2014/30/EU" and "Low Voltage 2014/35/EU", following a transitional period, came into effect definitively starting from 20 April 2016. As regards the "Electro Sensitive Protective Equipment" (ESPE), and in particular for the "Active Optoelectronic Protective Devices" (AOPD), the publication of the standards CEI EN 61496-1: 2014 + EC: 2015 and CEI EN 61496-2: 2014 states that, when the chosen safety device is a photoelectric Light Curtain, it can only be of Type2 or Type4 as established by the CEI EN 61496-2: 2014 standard. Furthermore, according to the harmonized standard CEI EN 61496-1: 2014, it is no longer possible to use a Type2 photoelectric Light Curtain for safety functions that are classified SIL2/PLd. In this case, in fact, it is necessary to use a Type4 photoelectric Light Curtain, which guarantees adequate protection for safety functions evaluated up to SIL3/PLe level. Therefore,  the use of a Type2 Safety Light Curtain can guarantee protection from risks up to SIL1/PLc level.


- REGULATIONS : Machinery Directive 2006/42/EC, application, news and European Standards.


- RoHS DIRECTIVE : How, where and when to apply the Directive on Restrictions on the use of certain hazardous substances in                                      electrical and electronic equipment.


- OPTO-ELECTRONIC PROTECTIONS : Why to use and how to choose an Opto-Electronic protection.


Machinery Directive 2006/42/EC, application, innovations and Standards.

On 9 June 2006 the Official Journal of the European Union published Directive 2006/42/EC, of 17 May 2006, relating to machines, which also modifies Directive 95/16/EC relating to lifts. This is a new edition of the Machinery Directive, which completely replaces 98/37/EC, of June 1998. The date of entry Directive 2006/42/EC was in force on 29 June 2006. The EU Member States had until 29 June 2008 to adopt and publish the laws, regulations and administrative provisions necessary to comply with this new directive. Finally, the date by which all the provisions contained must be compulsorily observed was set at 29 December 2009. In other words, the so-called "transitional period", that is the period in which the manufacturer can voluntarily choose to apply there new legislation even before its official entry into force in the member country or to apply the old one.

RoHS Directive

RoHS Directive (2002/95/EC).

The RoHS Directive (2002/95/EC), which will come into effect from July 2006, involves considerable involvement for the electronics industry. stakeholders are aware of their responsibilities and the impact this directive could have on their work. Indeed, RoHS does not only concern the technical manufacturing of components, but also has implications for many aspects of the business. including relationships between customer and supplier, logistics, supply chain, etc. RoHS (Restriction of certain Hazardous Substances in electrical and electronic equipment - Restrictions on the use of certain hazardous substances in electrical and electronic equipment) is an EU Directive which restricts the use of six hazardous substances in the production of various types of electrical and electronic equipment. It is part of a series of EU Directives on the environment and is connected str to the WEEE Directive (Waste Electrical and Electronic Equipment).

OptoElectronic Protections

OptoElectronic Protections

When designing a machine, potential risks must be analyzed and, where necessary, additional safety measures must be taken so as to protect the operator from residual risks (crushing, cuts, tears, entrapments, abrasions, perforations or punctures, risks of electric shocks etc ...). Ref. EN292 and prEN1050. In the continuation of this information it is assumed that many risks cannot be eliminated and that therefore it is necessary to use an "Active Optoelectronic Protective Device" (AOPD). Generally speaking, when an operator has to use a machine frequently, and by doing so he exposes himself to risk, it may be appropriate to use an optoelectronic protection system with respect to a protection offered by mechanical protection devices (fixed protections, two-hand controllers, screens, etc.). This reduces access times (the operator does not have to wait for the protection to open), increases productivity (time saved in loading the material to be processed into the machine), and improves the ergonomics of the workplace by providing the operator with the same degree of protection.

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