The Ovation 5A26391H24 Circuit Board is a core component in Emerson’s Ovation Distributed Control System (DCS), designed to process, regulate, and transmit signals across power and control subsystems. This board provides precise control functions, high-speed data acquisition, and reliable communication between sensors, controllers, and actuators within industrial automation environments.

Engineered for high performance and stability, the 5A26391H24 integrates advanced electronic components and fault-protection mechanisms to maintain reliable operation under varying load and environmental conditions. Its modular design allows easy installation, replacement, and integration into existing Ovation I/O racks, making it suitable for power generation, process control, and industrial automation applications.

Product Specifications

Product Applications

The 5A26391H24 Circuit Board is used in diverse industrial and process control environments:

• Power Generation – Interfaces with turbine controllers, generator monitoring systems, and protective relays.

• Oil & Gas – Monitors and transmits critical sensor signals for safety shutdown and automation systems.

• Petrochemical Processing – Controls valves, actuators, and sensors in refining and chemical production processes.

• Water & Wastewater Treatment – Processes sensor data and relays control commands for pumps and chemical dosing systems.

• Industrial Automation – Acts as a signal interface between Ovation DCS controllers and distributed I/O modules.

Product Advantages

• High Reliability: Industrial-grade components ensure stable performance under demanding conditions.

• Redundant Operation: Supports parallel configurations for fault tolerance and uninterrupted signal transmission.

• Advanced Protection: Overcurrent, thermal, and short-circuit protection safeguard the board and connected devices.

• Modular & Serviceable: Easy to install, replace, or upgrade without affecting system operation.

• Precision Signal Handling: Accurate signal processing reduces measurement errors and enhances control stability.

• Compact Design: Optimized for integration into standard Ovation racks without occupying excessive space.

FAQ

1. What is the nominal input voltage for the 5A26391H24?

   It operates on a 24 VDC nominal supply, ensuring stable power to all signal processing circuits.

2. What type of signals does the board handle?

   The board processes analog and digital I/O signals from sensors, actuators, and control devices.

3. Can the board operate in a redundant configuration?

   Yes, it supports parallel operation to provide fault-tolerant signal pathways.

4. What protections are built into the board?

   Overcurrent, short-circuit, and thermal protections are included to prevent equipment damage.

5. Which communication interfaces are supported?

   The board communicates via backplane bus connectors and standard I/O terminals for integration with Ovation systems.

6. Is the board hot-swappable?

   Yes, it can be replaced or upgraded without shutting down the DCS rack.

7. How stable is the board under varying load conditions?

   It maintains accurate signal processing and consistent data transmission across its operational range.

8. What is the maximum current the board can handle?

   It supports up to 3 A, sufficient for driving connected sensors and interface circuits.

9. Which environmental conditions are suitable for operation?

   The board operates reliably between 0°C and +60°C and can be stored at -40°C to +85°C.

10. What industries commonly use this board?

    Power generation, petrochemical plants, oil & gas facilities, water treatment plants, and industrial automation sectors rely on this module for reliable signal control.