EN ISO 13849
|
DIN EN ISO 13849 |
|---|---|
| Area | security of machines |
| title | Safety of machines - Safety-related parts of control systems - Part 1: General principles for design, Part 2 - Validation |
| Latest edition | ISO 13849-1: 2015-12
ISO 13849-2: 2012-10 |
| ISO | 13849 |
The EN ISO 13849 standard is a safety-specific standard, which deals with design principles for safety-related parts of control systems. Part 1 defines general design principles, part 2 describes validation .
classification
EN ISO 13849 is a basic safety standard type B1 according to EN ISO 12100 , ie a safety standard for defined safety aspects. The standard replaces EN 954, which was withdrawn in February 2007. In Germany, it is valid as DIN standard DIN EN ISO 13849. It is listed in the Official Journal of the EU under the Machinery Directive . Therefore, the presumption of conformity in the conformity assessment is based on it. Many C standards refer to EN ISO 13849.
It is also published as an ISO standard and is therefore taken into account in many markets outside of Europe.
scope of application
The standard provides safety requirements and guidelines for the design and integration of safety-related parts of machine controls, including the development of software . Properties of these parts are specified which are required to carry out the corresponding safety functions.
For this purpose, a distinction must be made between the safety-related parts and non-safety-related parts of the machine control when designing. Control parts are not only PLCs, but also sensors, actuators or devices for the safety-related coupling of signals.
A possible method for determining the required risk reduction is described in the appendix of the first part. The degree of risk reduction is described as the performance level (PL) and divided into 5 levels (a - e).
Part 2 specifies validation procedures, including analysis and testing, for the safety functions of the relevant parts of the controls.
The standard applies to all types of machines, regardless of the technology used (e.g. electrical, hydraulic, mechanical). It can be used for non-separating protective devices (e.g. locking), non-contact protective devices (e.g. light barriers ), control assemblies and power switching elements (e.g. relays ). It applies to both simple machines (e.g. kitchen machines) and complex production systems.
literature
- Carsten Gregorius: Functional safety of machines . Beuth-Verlag, 2016, ISBN 978-3-410-25249-8 .