The ABB XVC767AE105 3BHB007209R0105 is a high-precision analog output module part of the versatile S800 I/O family from ABB. This module acts as a critical interface within ABB's Distributed Control Systems (DCS), such as System 800xA, converting digital control signals from the controller into precise analog outputs to command field devices.
In a precise chemical dosing application within a water treatment plant, the exact amount of coagulant must be added based on real-time water quality analysis. The ABB XVC767AE105 module receives a digital command from the process controller (like a UFC762AE101). It then generates a highly accurate 4-20mA analog signal to precisely control the stroke of the dosing pump's actuator. The reliability and accuracy of the XVC767AE105 ensure that chemical addition is both effective and economical, directly impacting treatment quality and operational costs, while its robust design withstands the challenging electrical environment of the plant.
Main Parameters | Value/Description |
Product Model | ABB XVC767AE105 |
Order Code | 3BHB007209R0105 |
Manufacturer | ABB |
Product Category | Analog Output Module |
I/O System | S800 I/O |
Parent System | ABB System 800xA, Advant® OCS with S800 I/O |
Number of Channels | Typically 8 channels (configurable as current or voltage output) |
Output Signal | 0-20 mA, 4-20 mA, 0-10 V, etc. (software configurable per channel) |
Resolution | High resolution (e.g., 16-bit) for exceptional output accuracy |
Communication | Interfaces with the controller via a fieldbus communication module (e.g., CI854A) |
Electrical Isolation | Channel-to-channel and channel-to-bus isolation for safety and noise immunity |
Mounting | Plugs into an S800 I/O station base unit |
The ABB XVC767AE105 is designed for accuracy and reliability in critical control loops, with its value stemming from several key engineering features:
· •Innovation Point 1: High-Density, High-Resolution Output: The module packs 8 independent, software-configurable output channels into a single slot. Each channel utilizes high-resolution digital-to-analog conversion (DAC) technology, ensuring the output signal is a precise representation of the controller's command. This precision is crucial for applications like control valve positioning, where small signal errors can lead to significant process deviations.
· •Innovation Point 2: Advanced Signal Integrity and Isolation: A standout feature is the comprehensive electrical isolation. Each output channel is isolated from the others and from the internal system bus. This prevents ground loops, suppresses electrical noise from the field, and protects the entire I/O system from potential voltage transients, guaranteeing signal integrity in electrically noisy industrial environments.
· •Innovation Point 3: Flexible Configuration and Diagnostics: The XVC767AE105 can be easily configured via the system engineering tool (Control Builder). Operators can set each channel as current or voltage output, define failure states, and scale values. Furthermore, the module provides detailed diagnostic information, such as wire-break detection on current outputs, enabling predictive maintenance and rapid troubleshooting.
A thermal power plant needed to improve the control accuracy of its combustion air dampers to optimize boiler efficiency and meet emissions standards. The existing analog output cards were prone to drift. The plant upgraded its S800 I/O system with ABB XVC767AE105 modules. The superior accuracy and stability of the XVC767AE105 provided a much more precise control signal to the damper actuators. This resulted in tighter control of the air-to-fuel ratio, leading to a 2% improvement in combustion efficiency and a significant reduction in NOx emissions, demonstrating a direct return on investment through both fuel savings and regulatory compliance.
The ABB XVC767AE105 operates within an integrated S800 I/O framework. Essential related products include:
· •ABB TU810V1 3BSE013230R1: A base unit that provides the physical slot and electrical connection for the XVC767AE105 module.
· •ABB CI854A 3BSE030220R1: A PROFIBUS DP communication interface that connects the entire S800 I/O station (including the XVC767AE105) to the higher-level DCS controller.
· •ABB SD821 3BSE018105R1: A digital input module often used in the same station for reading status signals, complementing the control outputs of the XVC767AE105.
· •ABB AI825 3BSE008548R1: An analog input module for reading process variables, providing the feedback signals needed for the control loops that the XVC767AE105 closes.
· •ABB PP875 3BSE092977R1: A power supply module for the S800 I/O station, providing clean and reliable power to all modules, including the XVC767AE105.
Installation of the ABB XVC767AE105 is designed for efficiency. The module is simply plugged into its designated slot in the S800 I/O base unit, with keying features preventing incorrect insertion. Field wiring is connected to the terminal block on the base unit, not the module itself, allowing for easy module replacement without disturbing the field wiring.Maintenance is streamlined by the module's advanced diagnostics, which are accessible through the System 800xA operator interface. Potential issues like channel faults or communication errors are reported immediately, allowing for planned maintenance. If a module needs replacement, it can be hot-swapped (in supported configurations) without stopping the process. We provide full technical support, from configuration assistance to troubleshooting, ensuring the optimal performance and longevity of your XVC767AE105 modules and the overall control system.
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