Sicherheit von Maschinen - Funktionale Sicherheit sicherheitsbezogener Steuerungssysteme (IEC 62061:2021/AMD2:2026)

Sécurité des machines - Sécurité fonctionnelle des systèmes de commande relatifs à la sécurité (IEC 62061:2021/AMD2:2026)

Varnost strojev - Funkcijska varnost nadzornih sistemov, povezanih z varnostjo (IEC 62061:2021/AMD2:2026)

General Information

Status
Not Published
Public Enquiry End Date
30-May-2025
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
30-Jun-2026
Due Date
04-Sep-2026

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SIST EN 62061:2021/oprA2:2025

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Effective Date
19-Mar-2024

Overview

SIST EN 62061:2021/A2:2026 - Safety of machinery - Functional safety of safety-related control systems (IEC 62061:2021/AMD2:2026) is an international amendment standard developed by the Slovenian Institute for Standardization (SIST). This amendment to EN 62061 addresses critical aspects of the functional safety of control systems that are related to the safety of machinery. It focuses on systematic approaches for ensuring control systems can reliably protect users and machinery by achieving the required Safety Integrity Levels (SIL). The standard is aligned with IEC 62061 and incorporates electrotechnical safety considerations for industrial control and automation environments.

Key Topics

  • Functional Safety in Machinery: The standard addresses the requirements for ensuring that machinery control systems function safely and reduce risk during operation, maintenance, and emergencies.
  • Safety-Related Control Systems (SCS): It details how to assess, design, and maintain SCS to achieve target SIL, including safe failure fraction (SFF) and hardware fault tolerance (HFT).
  • Diagnostic and Fault Reaction Functions:
    • Automatic diagnostics are required for identifying dangerous system failures.
    • Systems must ensure safe states are achieved before dangerous situations arise.
    • Restoration of normal operation is only allowed after resolving detected faults.
  • Subsystem Isolation: For specific machinery, faulty channels may be isolated while operations continue under controlled risk reduction measures, ensuring the system maintains the required SIL.
  • Testing and Performance Requirements:
    • Diagnostic test rates versus demand rates.
    • Requirements for periodic testing and validation of diagnostic functions.
    • Criteria for system restart following fault clearing.
  • Component References: Updates recommendations for safety devices such as emergency stops and enabling switches in alignment with related IEC and ISO standards.

Applications

This standard is crucial for a wide range of industries employing automated or semi-automated machinery. Typical practical applications include:

  • Industrial Automation: Ensures programmable logic controllers (PLCs) and safety relays meet functional safety performance criteria.
  • Manufacturing Equipment: Applies to press machines, production lines, and robotic cells, helping integrate comprehensive safety functions.
  • Process Industries: Supports the design of safety instrumented systems (SIS) in industries such as chemicals, pharmaceuticals, and food processing.
  • Machinery Upgrades and Retrofits: Provides a common framework for evaluating and improving the safety performance of existing machinery controls.
  • Certification and Compliance: Supports conformance assessment and certification processes for machinery under European and international directives related to machine safety.

Implementing SIST EN 62061:2021/A2:2026 helps organizations:

  • Minimize risks related to hazardous machine movements or failures.
  • Demonstrate compliance with legal and industry safety regulations.
  • Enhance operator and workplace safety culture.
  • Address systematic and hardware-related safety issues through robust control strategies.

Related Standards

To ensure comprehensive functional safety and compliance, organizations should reference these related standards:

  • IEC 61508: Functional safety of electrical/electronic/programmable electronic safety-related systems - the foundational standard for SIL requirements and safety lifecycle management.
  • ISO 13849-1: Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design.
  • IEC 60947-5-5: Low-voltage switchgear and controlgear - Control circuit devices and switching elements - Electrical emergency stop device with mechanical latching function.
  • IEC 60947-5-8: Low-voltage switchgear and controlgear - Control circuit devices and switching elements - Three-position enabling switches.

By following SIST EN 62061:2021/A2:2026 and these associated standards, organizations can implement reliable, effective, and compliant safety-related control systems for machinery across diverse industrial environments.

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Frequently Asked Questions

SIST EN 62061:2021/A2:2026 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Safety of machinery - Functional safety of safety-related control systems (IEC 62061:2021/AMD2:2026)". This standard covers: Safety of machinery - Functional safety of safety-related control systems (IEC 62061:2021/AMD2:2026)

Safety of machinery - Functional safety of safety-related control systems (IEC 62061:2021/AMD2:2026)

SIST EN 62061:2021/A2:2026 is classified under the following ICS (International Classification for Standards) categories: 13.110 - Safety of machinery; 25.040.40 - Industrial process measurement and control; 25.040.99 - Other industrial automation systems; 29.020 - Electrical engineering in general. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 62061:2021/A2:2026 has the following relationships with other standards: It is inter standard links to SIST EN IEC 62061:2021. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN 62061:2021/A2:2026 is associated with the following European legislation: EU Directives/Regulations: 2006/42/EC; Standardization Mandates: M/396. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

SIST EN 62061:2021/A2:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
SIST EN 62061:2021/oprA2:2025
01-maj-2025
Varnost strojev - Funkcijska varnost nadzornih sistemov, povezanih z varnostjo
Amendment 2 - Safety of machinery - Functional safety of safety-related control systems
Sicherheit von Maschinen - Funktionale Sicherheit sicherheitsbezogener
Steuerungssysteme
Amendement 2 - Sécurité des machines - Sécurité fonctionnelle des systèmes de
commande relatifs à la sécurité
Ta slovenski standard je istoveten z: EN 62061:2021/prA2:2025
ICS:
13.110 Varnost strojev Safety of machinery
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
SIST EN 62061:2021/oprA2:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN 62061:2021/oprA2:2025
SIST EN 62061:2021/oprA2:2025
44/1058/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62061/AMD2 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-03-28 2025-06-20
SUPERSEDES DOCUMENTS:
44/1027/CD, 44/1043A/CC
IEC TC 44 : SAFETY OF MACHINERY - ELECTROTECHNICAL ASPECTS
SECRETARIAT: SECRETARY:
United Kingdom Mrs Nyomee Hla-Shwe Tun
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
SC 65A
ASPECTS CONCERNED:
Safety
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Amendment 2 - Safety of machinery - Functional safety of safety-related control systems

PROPOSED STABILITY DATE: 2027
NOTE FROM TC/SC OFFICERS:
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part of it,
for any other purpose without permission in writing from IEC.

SIST EN 62061:2021/oprA2:2025
IEC CDV 62061/AMD2 ED2 © IEC 2025 2 44/1058/CDV
1 INTERNATIONAL ELECTROTECHNICAL COMMISSION
2 ____________
4 SAFETY OF MACHINERY –
5 FUNCTIONAL SAFETY OF SAFETY-RELATED CONTROL SYSTEMS
7 AMENDMENT 2
9 FOREWORD
10 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
11 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
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18 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
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40 9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
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