Moeller Safety Manual:
The Way to the Safe Machine Compliant with EN ISO 13849-1 and IEC 62061.

As a leading supplier of control circuit devices, Moeller has had many years of experience with emergency-stop devices and is one of the leading suppliers worldwide of components for stopping plants and machines in the event of an emergency. Moeller's red-yellow emergency-stop actuator has been a standard component in machines and plants for several years and is an indispensable part of today's safety systems.

Moeller has published the "Safety Manual" for machine and system builders, trainers and trainees and all those wishing to come to grips with the subject of "machine and system safety". Like Moeller's Wiring Manual which has been an established publication for decades, this new technical guide provides an easy entry level to all the issues involved in safety technology.

The CE compulsory marking, stipulated in the current Machinery Directive 2006/42/EG and in force since the beginning of 1995, has provided the basis for implementing the safety requirements of a machine. It lays down the basic requirements for the safety of machines which must be observed by machine and system builders in the European single market.

The use of harmonised standards for functional safety listed in the EU Official Journal, such as EN ISO 13849-1 or IEC 62061, is recommended in order to satisfy verification in accordance with the requirements of the Machinery Directive. Only if the standards were observed in the design of functional safety, can it be presumed in the event of an accident involving personal injury that the operator and machine builder has fulfilled all machine safety requirements.

The EN ISO 13849-1 standard "Safety of Machinery - Safety related parts of a control system - Part 1: General principles for design", which was revised at the end of 2006, and is a successor to EN 954-1, as well as the IEC 62061 standard "Safety of machinery - functional safety of safety-related electrical, electronic and programmable electronic control systems" considers the safety system in its entirety, from the sensor to the actuator, and requires the precise determination of the probability of failure of the SRP/CS, or safety related parts of a control system.

The "Safety Manual" offers a systematic approach to machine and system safety: Starting with definitions, it categorizes the aspects of the safety system in logical stages, and covers the range from risk assessment to the selection of safety-related parts of control systems to the determination of the safety integrity level. A large number of circuit examples with the associated safety parameters provide further clarification.

"Stopping in an emergency (Emergency-stop disconnection)", "Monitoring of movable guards, and open hazardous areas", "Safe operation and setting" and much more. Both the use of conventional safety relays and the new easySafety safety control relay are described in detail. The easySafety in particular offers the user versatile solutions for several safety requirements, thanks to the ready-to-use safety function blocks which simplify compliance with the relevant standards. In addition to the safety circuit diagram containing the safety configuration, easySafety also has a standard circuit diagram for non-safety-related functions, thus providing an optimum integration of standard and safety functions.

The Safety Manual also contains a glossary of safety-related terms, machine and safety components in accordance with the Machinery Directive as well as regulations and a bibliography.

Moeller GmbH, 53105 Bonn
Tel.: +49 (0)228 602-0
Fax: +49 (0)228 602-2275
E-Mail: presse@moeller.net
Internet: www.moeller.net
Please direct your enquiries to:
Corporate Communications, Tel.: +49 (0)228 602-2915

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