Overview
EN ISO 11111-2:2005/A1:2009 - Textile machinery - Safety requirements - Part 2: Spinning preparatory and spinning machines (Amendment 1) is a CEN draft amendment that updates the original part‑2 standard. The amendment clarifies normative references, updates hazard-list cross‑references to Part 1 (ISO 11111‑1:2009), and introduces guidance on control‑system performance levels for particularly dangerous machine elements used in spinning preparatory and spinning machines.
Key topics and technical requirements
- Updated normative references: several older ISO references (e.g., ISO 11111‑1:2005, ISO 13849‑1:1999, ISO 13852:1996, ISO 13853:1998, ISO 14119:1998) are replaced with newer editions (notably ISO 11111‑1:2009, ISO 13849‑1:2006 and ISO/DIS 13857:2006). New references added include ISO 11161:2007 and IEC 62061:2005.
- Control system safety performance: for particularly dangerous machine elements the safety‑related parts of control systems are required to meet at least Performance Level PL = d (ISO 13849‑1:2006) or SIL = 2 (IEC 62061:2005). Any adoption of lower levels must be justified by a documented risk assessment in accordance with the cited standards.
- Clarified hazard and verification cross‑references: Clause updates reference ISO 11111‑1:2009 for the list of significant hazards, verification procedures, and information concerning machine use.
- Specific machine elements addressed: the amendment amends safety requirements across spinning preparatory and spinning equipment categories, including automated blending bale openers (with an example of sensitive protection via AOPD), moving bin emptiers, wool scouring, baling machines, carding machines, converters, speedframes, ring and open‑end spinning machines.
- Information and design notes: the Introduction amends the ISO 14121 citation to ISO 14121‑1 and Annex ZA alignment notes are included for CEN/ISO concordance.
Practical applications - who uses this standard
- Machine manufacturers and designers: to design and validate guards, interlocks, and control systems for spinning preparatory and spinning machines to meet current safety performance expectations.
- Safety engineers and risk assessors: to apply required risk assessment methods and to select appropriate PL/SIL levels for safety‑related control functions.
- Compliance officers and certification bodies: to verify conformity with the EN/ISO requirements for market access and EC directives.
- Maintenance and production managers: to understand required safeguards (e.g., AOPD examples) and verification/inspection points for safe operation.
Related standards (high relevance)
- ISO 11111‑1:2009 - Textile machinery - Safety requirements - Part 1: Common requirements
- ISO 13849‑1:2006 - Safety of machinery - Safety-related parts of control systems
- IEC 62061:2005 - Safety of machinery - Functional safety of electrical/electronic/programmable systems
- ISO/DIS 13857:2006 - Safety distances to prevent hazard zones being reached by limbs
Keywords: EN ISO 11111-2:2005/A1:2009, textile machinery safety, spinning machines, spinning preparatory, PL d, SIL 2, ISO 13849‑1, IEC 62061, machine safety, risk assessment.
