ISO 13849: Pneumatic and Hydraulic Safety Functions — Fluid Power Under Part 1 and Part 2

Date
2027-05-04
Location
Online
Host
Zach L

About this event

A live 30-minute expert session on Pneumatic and Hydraulic Safety Functions — Fluid Power Under Part 1 and Part 2 (ISO 13849 — Machinery Safety). What We'll Cover: What fluid power safety functions are and where safe exhaust and unexpected-start prevention sit in ISO 4414/4413 context The design method step by step: dual-valve redundancy, dynamic monitoring with pressure/position feedback, and soft-start dumping How valve B10d data and ISO 13849-2 fluid annexes map into the calculation and the pneumatic circuit safety file Common mistakes: claiming DC on valves with no position monitoring and trapped-pressure hazards after safe exhaust The residual energy verification and valve cycle-count assumptions an auditor probes on fluid power circuits Related topics: pneumatic safety · hydraulic sa

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About Functional Safety Foundations

This online session delivers expert-led instruction on the regulatory landscape and implementation approach for Functional Safety Foundations.

The cross-sector fundamentals underlying every functional safety standard: risk as severity × likelihood, the safety function concept, integrity levels, the safety lifecycle, and the split between random and systematic failures.

What it regulates

Shared vocabulary and reasoning: hazard → risk → risk reduction allocation → safety requirement → verified implementation → maintained integrity in operation.

Who must comply

Everyone entering the field — the conceptual base of the entire catalog.

Key requirements of Functional Safety Foundations

  • Hazard and risk fundamentals
  • Safety function anatomy: sensor-logic-actuator with defined safe state
  • Integrity ladders (SIL/PL/ASIL/DAL) as risk-reduction currencies
  • Random vs systematic failure treatment
  • Lifecycle and management of functional safety incl. competence

Key concepts: Functional Safety Foundations

Functional safety management
Planning, competence, documentation and assessment wrapped around technical work.
Risk reduction allocation
Distributing required risk reduction among mechanical design, safeguards, control functions and procedures.
Random vs systematic
Hardware wear-out/chance failures quantified statistically versus design/process errors controlled by rigor.
Safe state
The defined condition a function drives the equipment to on demand or fault.

Frequently asked questions: Functional Safety Foundations

Why can't testing alone prove safety?

Rare-event targets (like 1e-7/h) are unverifiable by test duration, and systematic errors evade random testing — hence the standards' dual machinery of quantified hardware analysis plus process rigor and independent assessment.

Standard information based on the published text of Functional Safety Foundations. Event content is provided by the host. For authoritative guidance, consult the official standard body.