Mercury Control Board Fail Safe Settings

The Mercury Control Board is a high-performance system designed to keep gate automation running smoothly and securely. This smart technology includes several failsafe and alarm features that ensure both safety and security, making it ideal for residential and commercial use. In this guide, we’ll break down what these settings are, why they matter, and how they work to enhance your gate system’s reliability and performance under different conditions.

What Is the Mercury Control Board?

The Mercury Control Board is the central component of any gate automation system, functioning as the "brain" that manages and coordinates all operations. Designed by Nice Apollo to meet UL325 safety standards, it ensures a safe and seamless user experience. With features like failsafe and fail-secure modes, an integrated alarm system, and user-friendly programming, it adapts easily to a variety of installation needs. It serves as a versatile and reliable solution for modern gate systems, offering unmatched functionality and ease of use.

Understanding Failsafe and Fail-Secure Settings

The failsafe and fail-secure modes on the Mercury Control Board are designed to handle power failures or low battery scenarios. These settings make sure the gate reacts appropriately to maintain safety and security, even during outages. They are especially beneficial in environments where unpredictable power conditions could compromise access or protection.

• In failsafe mode, the gate automatically opens when the system detects a low battery. This feature is particularly helpful in emergencies or during power outages when quick access is essential. It allows for seamless entry or exit during critical situations, ensuring safety and convenience for users.


• On the other hand, fail-secure mode ensures the gate stays closed in case of low battery, prioritizing security by preventing unauthorized access. This mode is ideal for applications where security must be maintained above all else, even in the event of power loss.

How Failsafe Mode Works

The Mercury Control Board uses an intelligent monitoring system to detect low battery levels and trigger the appropriate response. Depending on the configuration, it will activate either failsafe or fail-secure mode, ensuring that the gate operates as needed under different conditions.

• Failsafe Mode: Opens the gate to allow unrestricted access, which is ideal during emergencies or evacuation situations. This provides a reliable solution for scenarios where accessibility takes precedence over security.
• Fail-Secure Mode: Closes the gate to secure the property, ensuring no unauthorized entry. This is particularly useful for locations where restricted access is critical for safety or asset protection.

The system automatically resets these modes once power is restored. For example, if the board is connected to an AC-DC power source, it will reset when power is back. For battery-powered setups, the reset happens once the battery voltage stabilizes above a specific level for at least 10 minutes. This automated functionality ensures smooth operation without the need for manual intervention.

Integrated Alarm System

Another standout feature of the Mercury Control Board is its built-in alarm system, which adds an extra layer of safety and security. This feature not only enhances the system's usability but also aligns with key safety regulations.

When enabled, the alarm emits a "warn-before-operate" signal for three seconds before the gate starts moving. This audible alert helps ensure that anyone nearby is aware of the gate’s movement, reducing the risk of accidents. The alarm also continues for two seconds after the gate begins to move to reinforce awareness. This proactive design prioritizes user safety at all times. It’s important to keep the alarm connected, as it meets UL325 safety requirements for entrapment prevention, making it an essential part of the system. Disconnecting this feature could compromise both safety and compliance with industry standards.

Customizing Settings

The Mercury Control Board offers customization options to tailor its failsafe and alarm settings to your specific needs. For example, you can prioritize security with fail-secure mode or enable the failsafe feature for quick access during emergencies. Similarly, you can adjust the alarm settings based on your preferences for audible warnings. These flexible options ensure the system meets the unique requirements of your property.

Adjusting these settings is straightforward thanks to the control board’s intuitive interface. However, it’s a good idea to review your site’s requirements and consult the installation manual to ensure proper configuration. Proper setup not only optimizes the system's performance but also ensures long-term reliability.

Contact Us Today!

The Mercury Control Board offers top-of-the-line safety and security with its Fail Safe and Alarm Systems, amongst multiple other fantastic features. Whether you're seeking a reliable Control Board option or expert guidance for your next gate opener project, our knowledgeable sales team is here to help. If you have any questions, feel free to reach out to our expert Sales Team or visit our Resources Hub for instructional guides, detailed specifications, and more informational content.