DSQC325 3HAB2241-1 ABB Bailey

DSQC325 3HAB2241-1  ABB Bailey Termination Unit

Product  Description：

• • Termination Units are passive or active terminal blocks designed to securely connect the multitude of field devices in a plant to the corresponding input/output (I/O) modules residing in the control system's rack. They bridge the gap between the rough industrial environment of the field and the delicate electronics of the control system. TUs are specifically engineered to provide robust, reliable, and often isolated connections, ensuring signal integrity and system protection.

    Different types of TUs exist, tailored to specific I/O module types:

    • Analog Input Termination Units (e.g., NTAI06): Connect various analog sensors (temperature, pressure, flow) using signals like 4-20mA, 0-10V, or RTDs.

    • Digital Input Termination Units (e.g., NTDI02): Interface with discrete ON/OFF signals from switches, pushbuttons, or limit switches.

    • Digital Output Termination Units: Connect to actuators, solenoids, or indicator lights that require ON/OFF control.

    • Communication Termination Units (e.g., NTCL01, NTMP01): Provide termination for communication ports (e.g., RS-232, RS-485, Fieldbus) to integrate with other systems or devices.

    • Fiber Optic Termination Units (e.g., NTCF-21): Specifically designed to terminate fiber optic cables, ensuring secure and stable connections for critical data transmission over optical networks.

     

    Product Parameters (Typical)

     

    Parameters vary widely based on the specific termination unit and its intended I/O module type.

    • Number of Channels: Typically corresponds to the I/O module, e.g., 8, 16, or 32 channels.

    • Signal Type Support:

      • Analog: 4-20 mA, 0-10 VDC, +/-10 VDC, RTD (2, 3, 4 wire), Thermocouple (various types).

      • Digital: 24 VDC, 48 VDC, 120 VAC, 125 VDC.

    • Connection Type: Screw terminals are common for secure field wiring.

    • Isolation: Often provides electrical isolation between field circuits and system electronics, critical for noise immunity and safety (e.g., 2500 VRMS).

    • Power Supply: Some TUs may require their own power supply (e.g., 24 VDC) or distribute power from power conditioner modules.

    • Environmental Ratings:

      • Operating Temperature: Typically -20°C to 60°C (-4°F to 140°F).

      • Storage Temperature: -40°C to 85°C (-40°F to 185°F).

      • Relative Humidity: < 75% non-condensing.

      • Ingress Protection (IP Rating): Often IP20 for typical cabinet mounting.

    • Mechanical Specifications:

      • Mounting: DIN rail mounting (e.g., EN 50022).

      • Dimensions: Vary significantly by model.

      • Weight: Typically less than 1 kg.

    • Compliance: Adherence to industrial standards like IEC 61158-2 (Fieldbus), EN 61326 (EMC), IEC 60529 (IP rating).

     

    Product Advantages

     

    • Simplified Wiring: Provides clear, labeled, and robust termination points for field signals, reducing wiring complexity and potential errors.

    • Enhanced Reliability: Designed for harsh industrial environments, ensuring reliable and secure connections that are less susceptible to vibration or signal loss.

    • Improved Maintainability: Allows for easier installation, troubleshooting, and replacement of I/O modules without disturbing field wiring. Field wiring remains connected to the TU, while the module can be swapped.

    • Signal Integrity: Often includes features like signal conditioning, filtering, and isolation to protect the DCS electronics from noise, surges, and ground loops, ensuring accurate data acquisition.

    • System Protection: Provides a barrier against over-voltage or short-circuit conditions from the field, protecting sensitive control system components.

    • Modularity: Supports the modular design of ABB Bailey DCS, enabling flexible system expansion and configuration.

    • Compatibility: Fully compatible with corresponding ABB Bailey I/O modules and existing INFI 90 OPEN and Symphony Enterprise Management Systems.

     

    Precautions

     

    • Compatibility: Always ensure the termination unit is compatible with the specific ABB Bailey I/O module it is intended to connect to. Mismatching can cause damage or malfunction.

    • Wiring Standards: Adhere strictly to wiring diagrams, local electrical codes, and ABB Bailey installation guidelines. Incorrect wiring can lead to system failures, safety hazards, or damage.

    • ESD Protection: Handle termination units with appropriate electrostatic discharge (ESD) precautions. Static electricity can damage sensitive electronic components.

    • Power Requirements: Verify that any required power supplies for the termination unit or associated modules meet the specified voltage and current ratings.

    • Environmental Conditions: Install and operate the termination unit within its specified temperature, humidity, and vibration limits to ensure long-term performance and reliability.

    • Maintenance: Only qualified personnel should perform installation, maintenance, or replacement procedures. Ensure power is secured before working on the unit.

    • Cable Lengths: Be aware of cable length limitations for certain signal types or communication protocols as specified in the product documentation.

     

    Product Applications

     

    ABB Bailey Termination Units are fundamental to industrial processes requiring precise control and monitoring. Their applications span various sectors where ABB Bailey DCS are deployed:

    • Power Generation: Control and monitoring of boilers, turbines, generators, and auxiliary systems in thermal, hydro, and nuclear power plants.

    • Oil and Gas: Process control in refineries, petrochemical plants, offshore platforms, and pipeline operations.

    • Chemical Processing: Automation of chemical reactors, distillation columns, and material handling.

    • Pulp and Paper: Control of paper machines, digesters, and other critical processes.

    • Water and Wastewater Treatment: Managing pumps, valves, filters, and chemical dosing systems.

    • Mining and Metals: Automation of crushing, grinding, smelting, and refining processes.

    • Manufacturing: Control of complex assembly lines, batch processes, and factory automation systems.

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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JUSTWELL PTE. LTD

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.