AV1121000 ABB Bailey

AV1121000 ABB Bailey Basis unit 

Product  Description：

• • The Basis Unit is essentially the chassis or rack into which individual electronic modules are inserted. It provides the necessary power distribution, communication pathways (backplane bus), and mechanical support for the modules. By housing a combination of processor, I/O, and communication modules, it enables the execution of control strategies, data acquisition from field devices, and communication with other parts of the DCS or higher-level systems. ABB acquired Bailey Controls, so these units are an important part of ABB's legacy control system portfolio.

     

    Key Functions

     

    • Module Housing: Provides dedicated slots for mounting CPU modules, I/O modules (analog and digital), communication modules, and power supply modules.

    • Backplane Bus: Establishes the high-speed data highway for communication between the installed modules. This internal bus allows modules to exchange process data, control signals, and diagnostic information rapidly.

    • Power Distribution: Distributes regulated power from the system power supply to all the modules installed in the unit.

    • Mechanical Support: Offers a robust and secure physical framework to protect and stabilize the electronic modules in industrial environments.

     

    Product Parameters (Typical)

     

    Parameters can vary significantly depending on the specific model and series (e.g., INFI 90, Harmony DCS).

    • Number of Slots: Common configurations include units with 8, 16, or more slots for modules.

    • Backplane Architecture: Details of the internal bus for module communication (e.g., speed, data width).

    • Power Supply Requirements: Specifies the required input voltage (e.g., 24 VDC, 120/240 VAC) and current draw to power the mounted modules. Some units may include primary power distribution capabilities.

    • Dimensions: Physical size of the unit (height, width, depth) for panel or cabinet mounting.

    • Mounting Type: Typically rack-mount or panel-mount.

    • Environmental Ratings: Operating temperature range (e.g., 0°C to 60°C), humidity, and vibration resistance.

    • Isolation: Electrical isolation characteristics between channels or power supplies for noise immunity and safety.

     

    Product Advantages

     

    • Modularity and Flexibility: Allows for a highly customizable and scalable control system. Users can select and combine various modules to precisely meet specific application requirements.

    • Reliability and Robustness: Built for demanding industrial environments, ensuring continuous and stable operation critical for process control.

    • Distributed Control: As a fundamental part of a DCS, these units enable the distribution of control logic closer to the process, improving system reliability by limiting the impact of a single point of failure.

    • Scalability: Facilitates system expansion by adding more units and modules as the process grows or requirements change.

    • Legacy Support: For existing installations, the continued availability of these units (often as refurbished or replacement parts) is crucial for maintaining and extending the life of established ABB Bailey systems.

     

    Precautions

     

    • Compatibility: Always ensure the specific Basis Unit model is compatible with the intended ABB Bailey modules (CPU, I/O, communication) and the overall DCS architecture.

    • Installation Environment: Install the unit in an environment that meets the specified temperature, humidity, and vibration limits. Proper ventilation is also essential to prevent overheating.

    • Power Supply Integrity: A stable and correctly sized power supply is critical. Incorrect voltage or insufficient current can lead to system malfunction or damage.

    • ESD Protection: Always follow Electrostatic Discharge (ESD) precautions when handling the Basis Unit and inserting or removing modules to prevent damage to sensitive electronic components.

    • Proper Grounding: Ensure the unit is correctly grounded to minimize electrical noise and ensure safety.

    • Documentation: Refer to the specific ABB Bailey instruction manuals for detailed installation, wiring, and maintenance procedures. Do not install or operate without understanding these guidelines.

    • Qualified Personnel: Maintenance and installation should only be performed by qualified personnel experienced in handling electronic circuitry and industrial control systems.

     

    Product Applications

     

    ABB Bailey Basis Units are primarily found in large-scale Distributed Control Systems (DCS) across various heavy industries. They form the backbone of automation and control for complex processes.

    • Power Generation: Widely used in thermal, nuclear, and hydro power plants for boiler control, turbine control, generator synchronization, and balance-of-plant automation.

    • Oil and Gas: Employed in refineries, petrochemical plants, pipelines, and offshore platforms for process control, safety systems, and monitoring of critical rotating equipment.

    • Chemical Processing: Used in chemical manufacturing facilities for batch and continuous process control, reaction management, and safety interlocks.

    • Pulp and Paper: Automation of paper machines, digesters, and other processes in the pulp and paper industry.

    • Water and Wastewater Treatment: Control and monitoring of pumping stations, treatment processes, and distribution networks.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.