The preconfigured Festo fail-safe circuit is ready to install in the control cabinet as a safe and low-cost alternative when it comes to fail-safe technology. It replaces a single-acting actuator and guarantees that the actuator assumes a predefined safety position in the event of pressure and/or power failure.
The fail-safe circuit comes in three different versions: Fail-Safe Standard; Fail-Safe Plus – Always Safe; and Fail-Safe Plus – Manual Override, to suit different customer requirements. The actuator assumes its predefined safety position in all three fail-safe versions if the compressed air and/or power supply fails. This is achieved by using compressed air from the reservoir to move the actuator.
This fail-safe circuit, configured by Festo in a ready-to-install control cabinet, is a low-cost and effective safety solution compared with a single-acting linear cylinder. The pre-assembled solutions simplify the engineering process and are ideal for use in applications such as rainwater overflow tanks in water technology.
Fail-safe times three
If the power or compressed air fails, the actuator assumes its predefined safety position. This is the basic functionality provided by the Fail-Safe Standard version. With the Fail-Safe Plus – Always Safe version, the actuator moves into the predefined safety position unless the circuit operates manually. It is possible to switch between manual and automatic operation, but only when compressed air is available.
With the Fail-Safe Plus – Manual Override version, the dominant manual operation applies. If there is a compressed air or power failure, the actuator moves into the predefined safety position unless the circuit is in manual operation. In manual operation, the actuator can be moved when there is no compressed air and power until the air reservoir is completely empty, which means the air reservoir must always be customised to meet customer requirements. It is also possible to switch between manual and automatic operation with this variant.
World’s first 5G smartphone for ATEX and IECEx zone 1/21 Extech Safety Systems
IS & Ex
i.safe MOBILE has launched the world’s first 5G smartphone for ATEX and IECEx zone 1/21. The intrinsically safe mobile device, which was also developed for use in 5G campus networks, offers companies great flexibility thanks to its wide range of possible applications, especially in the automation sector.
Read more...Mastering industrial automation: Festo courses, the key to productivity and cost saving Festo South Africa
News
Festo prides itself on maintaining a team of expert trainers that serve its customers worldwide. Their diverse portfolio seamlessly integrates training courses with tailor-made assessments, e-learning modules, and hands-on learning systems. This holistic approach enhances the effectiveness of learning, optimises outcomes, and maximises knowledge transfer.
Read more...Pushing technological boundaries with Festo Electric Automation solutions Festo South Africa
Editor's Choice
In the ever-evolving landscape of Industrial Automation, Festo Electric Automation solutions are at the forefront of a revolution, fundamentally reshaping production paradigms. As a global leader in automation, Festo focuses on intelligent connectivity to reduce costs, save time, and increase efficiency and convenience for customers.
Read more...Empowering education and learning through innovation Festo South Africa
News
Education stands as the cornerstone of progress in a world propelled by innovation and driven by the passion for learning. Recognising the pivotal role of learning institutions in shaping tomorrow’s leaders, Festo Didactic has launched the groundbreaking Fluid Power Blue Moon Special to revolutionise learning experiences in higher educational institutions, training centres, and Technical Vocational Education and Training colleges.
Read more...Secure, digital communication in potentially explosive atmospheres Pepperl+Fuchs
IS & Ex
Consistently digitalised processes in the smart factory are a matter of course today, but not in potentially explosive atmospheres. The systems and devices used in these areas must have optimal protection mechanisms to ensure maximum safety.
Read more...Functional and compatible intrinsically safe loop approvals Extech Safety Systems
IS & Ex
With all the focus on IS loop approval, it is easy to forget to check that the loop will function correctly to see whether the field device has sufficient power (voltage & current) to operate over the full process range.
Read more...Upgrade your legacy alarm units Omniflex Remote Monitoring Specialists
IS & Ex
Darren Barratt, sales manager at alarm annunciator specialist Omniflex, explains the drawbacks of leaving outdated rack-based alarm annunciator systems in place, and why an upgrade might be simpler than you would expect.
Read more...Streamline your valve selection Festo South Africa
Valves, Actuators & Pump Control
Automation specialist, Festo recognises the value of time in the dynamic world of process automation. To cater for this, we have introduced an innovative online configurator tool to transform the way in which engineers and procurement professionals select and size process valves.
printer friendly version