scope:

This International Standard specifies requirements and makes recommendations for the design, integration and validation of safety-related electrical, electronic and programmable electronic control systems (SRECS) for machines (see Notes 1 and 2). It is applicable to control systems used, either singly or in combination, to carry out safety-related control functions on machines that are not portable by hand while working, including a group of machines working together in a co-ordinated manner. This standard is an application standard and is not intended to limit or inhibit technological advancement. It does not cover all the requirements (e.g. guarding, non-electrical interlocking or non-electrical control) that are needed or required by other standards or regulations in order to safeguard persons from hazards. Each type of machine has unique requirements to be satisfied to provide adequate safety. This standard: - is concerned only with functional safety requirements intended to reduce the risk of injury or damage to the health of persons in the immediate vicinity of the machine and those directly involved in the use of the machine; - is restricted to risks arising directly from the hazards of the machine itself or from a group of machines working together in a co-ordinated manner; - does not specify requirements for the performance of non-electrical (e.g. hydraulic, pneumatic) control elements for machines. - does not cover electrical hazards arising from the electrical control equipment itself (e.g. electric shock - see IEC 60204-1).