MACHINERY DIRECTIVE and SAFETY STANDARDS
The machinery and safety directive is currently evolving. New standards have appeared, others have been superseded, but some of them extended until 2012.
This document drawn up by Metal Work and the attachments are intended to make interpretation of the rules as simple as possible.
List of main standards
| Number |
English name |
Notes |
| EC 2006/42 |
Machinery directive |
Does not apply to pneumatic components, which are not machines or quasi-machines. |
| EN ISO 13849-1 |
Safety of machinery – Safety-related parts of control systems, part 1: General principles for design |
Only applies to pneumatic components used for SAFETY functions. |
| EN 62061 |
Safety of machinery- Functional safety of safety-related electrical, electronic and programmable control systems |
Allows integration of subsystems designed in accordance with ISO 13849-1. |
| ISO 19973 |
Pneumatic fluid power- Assessment of component reliability by testing |
Allows calculation of the reliability index B10d |
MACHINERY DIRECTIVE
The Machinery Directive, , does not apply directly to Metal Work components, which are not considered “machines” or “quasi-machines”, nor are they safety components. Both CETOP (European Fluid Power Committee) and the Machinery Working Group of the European Commission have made a clear statement in this sense.
Please refer to the attached document.
The design and manufacture of Metal Work components must be such that the complete machine complies with the fundamental health and safety requirements. As a guarantee of this, Metal Work has drawn up declarations of Product Conformity in accordance with directive 2006/42.
Please refer to the page with the
SAFETY SYSTEMS
A safety system designer who applies EN ISO 13849-1 must calculate the performance level (PL)To do this, he needs to know the value of the pneumatic components forming the safety systems to calculate the MTTFd (mean time to dangerous failure).
* The
is an index of reliability and is defined as the number of cycles until 10% of the components fail dangerously.
It must be declared by the manufacturer of the pneumatic component. It can be determined with reference to ISO19973.
EN 62061requires the
SIL (
Safety Integrity Level) to be calculated for safety systems. To do this for pneumatic components, the designer must refer to the PL defined in EN ISO 13849-1. This means that the B10d is an index that is also required by anyone applying EN 62061.
Metal Work has determined values for all its products and lists them in the document entitled “Reliability_B10d".
Metal Work safety components
Metal Work makes the following products defined as safety components:
Two-hand safety control
It is certified under EN574 as type IIIA and is currently being recertified in accordance with EN ISO 13849-1.
The use of two ONE units in series, controlled electrically following the instructions provided, gives a safety component that can cut off the power supply, prevent back-pressure in circuits without specific consent and verify residual pressure zeroing.
The codes for the two ONE units in sequence must be:
54 _ _ 11 _ 81 _ 00
and
54 _ _ 11_ 91 _ 00
where the _ must be replaced by codes identifying the threads, degree of filtration and pressure range.
The ODS module complies with Directive 98/37 CE Cat. 4 and is currently being certified in accordance with EN ISO 13849-1.
*
