Last edit: 14/11/2025
Training objective
The training presents a practical approach to the design of control systems that perform safety functions according to ISO 13849-1, the fourth edition of which was published in April 2023.
The program is intended for machinery manufacturers using relatively simple safety circuits, interlocks, safety barriers (AOPD – Active Opto-electronic Protective Devices), contactors, and Variable Speed Drives (VSD).
The training begins with a brief introduction to the concept of Reliability and Performance Level, describes the five categories of ISO 13849-1, the Validation process, and concludes with several practical examples carried out together with the participants.
TARGET AUDIENCE: Electrical and mechanical technicians who work for a Machinery manufacturer.
DIFFERENCES BETWEEN FS 1, FS 2, AND FS 3 COURSES:
-
The FS 1 course is for those who want to gain a good knowledge of ISO 13849-1, which allows them to calculate the Performance Levels of a safety function.
-
The FS 2 course is for those who are also interested in IEC 62061 (calculation of Safety Integrated Level – SIL) and want to explore the differences between High and Low Demand systems.
-
Finally, the FS 3 course is suitable for those who already have a good knowledge of ISO 13849-1 and are interested in exploring the following aspects: IEC 62061, the standard on Low Demand (IEC 61508 and IEC 61511), how to interpret a certificate for a “SIL-certified” pressure transmitter, how to manage “mixed” systems (i.e., with loops in both High and Low demand), and generally gain excellent knowledge of the standards related to Functional Safety.
The FS 1, FS 2, and FS 3 programs are cascaded: FS 2 includes the entire FS 1 course program, while the FS 3 course includes the entire programs of both FS 1 and FS 2.
DURATION: 8 hours, in person or remotely.
Content
PART 1: 4 hours
INTRODUCTION TO FUNCTIONAL SAFETY AND ISO 13849-1
-
Machinery Safety and protections
-
Interlocks
-
Safety Control Systems
-
Actuators: The contactor
-
The basic principle of Functional Safety
-
Introduction to High and Low Demand systems
-
How to evaluate the minimum required reliability level
-
ISO 13849-1: basic principles
-
Category 1 – Single Channel
-
Category 2
PART 2: 4 hours
ISO 13849-1 AND ARCHITECTURE EXAMPLES
-
Categories 3 and 4 – Dual Channel
-
The Simplified Procedure
-
Main Electrical Architectures
-
Estimation of Diagnostic Coverage (DC)
- Main Pneumatic and Hydraulic diagrams
-
Practical application examples
-
Introduction to Validation Process
Instructor
GT Engineering is member of the following IEC and ISO Technical Committees:
- Member of the Technical Committee TC 44/MT 62061 for IEC 62061: Safe control systems for machinery
- Member of the Technical Committee TC 44/PT 63394 for IEC TS 63394: Guidelines on safe control systems for machinery
- Member of the Technical Committee TC 65/SC 65A/MT 61511 for IEC 61511: Functional safety – Safety instrumented systems for the process industry
- Member of the Technical Committee TC 65/SC 65A/MT 61508-1-2 for IEC 61508: Maintenance of IEC 61508-1, -2, -4, -5,-6 and 7
- Member of the Technical Committee ISO/TC 199, for ISO 13849-1