Upcoming Webinar: Manual Shutdown in Safety Instrumented Systems (SIS)
In accordance with IEC 61511, the manual activation of Safety Instrumented Systems (SIS) is typically required when automated safety actions are insufficient or unavailable, or when human intervention is necessary for system recovery. The standard outlines that manual activation should be an option for addressing specific safety functions that cannot be handled by automated systems in certain failure modes. This can be the case when there is an emergency condition or when the system fails in such a way that it requires operator action to restore the safe state or to prevent further escalation of hazards. The manual activation process must be well-defined, tested, and incorporated into the system’s overall safety management plan.
Join us for an in-depth webinar on the crucial topic of Manual Shutdown in Safety Instrumented Systems (SIS). In this session, we’ll cover key standards and guidelines, considerations for implementing manual shutdown, and various options for effective deployment. We’ll also guide you through the Manual Shutdown Design Workflow, ensuring you have the insights needed to meet both industry requirements and operational safety needs.
The webinar will start with a focus on standards requirements for manual shutdown, including the critical provisions outlined in IEC 61511 and ISA 84. We will explore the necessity of providing manual means to actuate SIS final elements, such as emergency stop buttons, when required by the Safety Requirements Specification (SRS). We’ll also discuss when and why manual shutdown mechanisms may or may not be needed based on system reliability and operational considerations.
We’ll then move on to considerations for implementation, exploring key questions such as whether alternative methods (like BPCS) could achieve the same outcomes, when manual activation may offer advantages, and how to address timing concerns. Various options for manual means will be discussed, including operator interfaces, direct wiring to SIS inputs, and methods for disconnecting power or individual final elements. The session will conclude with a review of the manual shutdown design workflow, from aligning with standards requirements to creating datasheet entries and justifications for manual means. Don’t miss this chance to enhance your understanding of manual shutdown in SIS systems—sign up today!
Date: February 21st, 2025
Time: 10:30AM EST
Register Now: Complete and submit form below
This webinar is part of Kenexis’ ongoing commitment to providing the industry with the tools and knowledge needed to ensure the highest standards of safety and compliance.