CI820V1 3BSE0255R1 ABB Bailey

CI820V1 3BSE0255R1 ABB Bailey Digital Input Module

Product  Description：

• • ABB Bailey Digital Input Modules are fundamental components within ABB's distributed control systems (DCS), particularly systems like the INFI 90 and Symphony Plus (Harmony). These modules serve as the critical interface between discrete field devices (such as switches, pushbuttons, limit switches, and proximity sensors) and the central control system. They convert on/off electrical signals from the field into digital information that the PLC or DCS controller can understand and process.

     

    Key Functions

     

    • Signal Acquisition: Reads binary (on/off) signals from field devices.

    • Signal Conditioning: Filters out electrical noise and debounce switch contacts to ensure reliable and stable input signals.

    • Isolation: Provides electrical isolation between the field wiring and the control system logic, protecting sensitive electronics from voltage surges and ground loops.

    • Status Indication: Often includes LED indicators for each channel, providing visual confirmation of the input status for easy troubleshooting.

    • Data Conversion: Converts varying field voltages (e.g., 24VDC, 120VAC) into standardized internal logic levels for the controller.

     

    Product Parameters (Typical)

     

    Parameters vary significantly depending on the specific module model (e.g., IMDSIxx for INFI 90, DIxxx for S800 I/O). However, common parameters include:

    • Number of Channels: Typically 8, 16, or 32 input channels per module.

    • Input Voltage Range: Common ranges include 24 VDC, 48 VDC, 125 VDC, and 120 VAC, 230 VAC.

    • Input Current: The typical current drawn by an input when active (e.g., ~5 mA at 24VDC).

    • Isolation: Often group-wise or individually isolated channels, with dielectric test voltages (e.g., 2000 VAC) for robust protection.

    • Input Delay/Filter Times: Configurable digital filters to prevent nuisance trips from noisy signals (e.g., 0.1 ms to 32 ms).

    • Signal "0" and "1" Thresholds: Specific voltage ranges that define an "off" (0) or "on" (1) state.

    • Power Consumption: (e.g., 2.8 W typical).

    • Environmental Conditions: Operating temperature (e.g., 0°C to +55°C), humidity (e.g., 5-95% non-condensing), and resistance to corrosion (e.g., ISA-S71.04: G3).

    • Mounting: Typically plugs into a backplane or module mounting unit (MMU) within a control cabinet.

     

    Product Advantages

     

    • High Reliability: Designed for continuous and robust operation in demanding industrial environments, ensuring consistent data acquisition.

    • Robust Isolation: Protects the control system from electrical disturbances and ground issues in the field, enhancing system stability and longevity.

    • Flexibility: Supports a wide range of input voltage types and configurations to accommodate diverse field devices and applications.

    • Easy Diagnostics: Onboard LED indicators provide immediate visual feedback on the status of each input, simplifying troubleshooting and reducing downtime.

    • Seamless Integration: Designed as part of the broader ABB Bailey DCS ecosystem, ensuring smooth communication and compatibility with controllers and other I/O modules.

    • Configurable Filtering: Adjustable input filters allow optimization for different signal types and noise levels, improving data integrity.

     

    Precautions

     

    • Read Documentation: Always consult the specific instruction manuals for the module model being installed. Failure to do so can lead to injury, damage, or process upsets.

    • Qualified Personnel: Installation, maintenance, and operation should only be performed by qualified engineers or technicians experienced with electronic circuitry and control systems.

    • ESD Protection: Always follow Electrostatic Discharge (ESD) precautions when handling modules to prevent damage to sensitive electronic components.

    • Correct Wiring: Ensure accurate wiring according to the module's specifications and system diagrams. Incorrect wiring can cause malfunction, damage, or safety hazards.

    • Power Supply: Verify that the field device power supply and module power supply voltages are within specified limits and are correctly connected. Do not connect power supply directly to input terminals unless explicitly designed for it.

    • Environmental Limits: Operate the module within its specified temperature, humidity, and vibration limits to ensure optimal performance and longevity.

    • Process Security: Before performing any maintenance or removal of modules, ensure the controlled process is safely secured to prevent unintended operations or upsets.

    • RFI/EMI: Be mindful of radio frequency interference (RFI) and electromagnetic interference (EMI). Exercise caution with portable communication equipment near the installed modules.

     

    Product Applications

     

    ABB Bailey Digital Input Modules are critical in a vast array of industrial applications where discrete on/off signals need to be monitored and integrated into a control system.

    • Process Control Systems: Monitoring the status of pumps, valves (open/closed), motor starters (run/stop), level switches, and safety interlock switches in industries like oil and gas, petrochemicals, power generation, and pulp & paper.

    • Discrete Manufacturing: Sensing the position of parts, presence of products, status of conveyors, and activation of machine components on assembly lines, packaging machines, and robotic cells.

    • Building Automation: Monitoring security sensors (door/window contacts), fire alarm panel statuses, fan statuses, and equipment fault indications.

    • Water and Wastewater Treatment: Monitoring pump statuses, valve positions, level alarms, and equipment faults.

    • Power Distribution: Monitoring circuit breaker statuses, disconnector positions, and general alarm signals in substations and power plants.

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.