Fail safe, or fault tolerant? These are two concepts of machine and process safety systems. But machine safety is governed by two standards, ISO 13849-1 and IEC 62061, whereas process safety is governed by IEC 61511. In our May 2021 User Group seminar, we look at the differences between machine and process safety, and SIL and PLe.
View additional resources on our User Group page on our website: www.reynoldsonline.com/User-G...
0:00 Introduction
1:28 Training & Events
3:07 Part 1: Machine Safety by Eric Bombere
4:15 Machinery Safe Guarding & E-Stop
5:12 Controls & Safety Measures
6:16 What Is "Functional Safety?"
7:05 Some Standards to know & love...
10:36 Example "Functional Safety" Control System
14:19 Machine Safety Lifecycle
15:30 Risk Assessment Scoring Systems - Elements of Risk
16:28 Scoring Systems & Models - HRN "Hazard Rating Number"
17:51 Functional Safety Design
18:10 Design Requirements Commensurate with Risk Assessment
21:53 Calculate Performance Level of the Safety Function
22:27 Design to, and verify, Performance Level (PL)
23:35 Do this for Each Safety Function on the Machine
24:03 What about Safety Integrity Levels?
26:05 IEC62061 2nd Edition (2021)
27:27 Part 2: Process Safety by Justin Ryan
28:08 Safety Moment
32:19 IEC Standards Structure
34:38 Legal Requirement for Process Safety - OSHA
36:47 OSHA PSM Problem Statement
37:16 IEC61511 - What is it?
44:30 Other Important Standards (Application Standards)
44:53 Layers of Protection
48:32 Process Safety Lifecycle
50:29 Safety Integrity Levels (SIL)/Risk Reduction Factor
53:35 SIS Controller Portfolio
54:22 Safety Functions Documents - Example Application Techniques