ABB UFC921A101 3BHE024855R0101 INT‑2 Interface Board

Description

Technical Specifications

• Product Type: Industrial Interface & Control Board (INT‑2)
• Target Systems: ABB UNITROL 5000 Excitation Systems, ACS Series Drives
• Power Supply: 24 V DC (18 V – 32 V DC)
• Power Consumption: ≤ 10 W
• Processing Architecture: High‑performance embedded processor with dedicated excitation control logic
• I/O Configuration:
  • Digital Inputs: 16 isolated channels (24 V DC)
  • Digital Outputs: 8 isolated relay channels (24 V DC)
  • Analog Inputs: 8 high‑precision channels (0–10 V, 0–20 mA, 4–20 mA)
  • Analog Outputs: 4 channels (0–10 V, 0–20 mA, 4–20 mA)
  • Encoder Interfaces: Support for HTL, TTL, and EnDat encoders
• Communication Interfaces:
  • Masterbus 300, Modbus RTU/TCP, Profibus DP, CANopen
  • RS‑232/RS‑485 serial ports for local/remote communication
  • High‑speed backplane bus for internal system integration
• Operating Temperature: -25°C to +70°C
• Storage Temperature: -40°C to +85°C
• Humidity: 5% – 95% RH (non‑condensing)
• Vibration Resistance: 5 g (10 Hz – 2000 Hz)
• Protection: Conformal coating for harsh environment resistance
• Dimensions: 332 mm × 158 mm × 28 mm
• Weight: Approx. 0.3 kg
• Certifications: CE, UL, CSA compliant

Key Features

• Dual‑Channel AVR Control: Implements a redundant Automatic Voltage Regulator (AVR) system for precise generator excitation control, ensuring stable voltage and reactive power regulation.
• Hot‑Swappable Design: Allows module replacement without system shutdown, minimizing downtime and maximizing operational availability.
• Conformal Coating Protection: Features a protective surface coating to resist moisture, dust, and chemical contaminants, enabling reliable operation in harsh industrial settings.
• Comprehensive I/O Suite: Provides a full complement of isolated digital and analog I/O, supporting seamless connection to field sensors, actuators, and feedback devices.
• Multi‑Protocol Communication: Supports a wide range of industrial communication protocols, facilitating easy integration with PLCs, SCADA systems, and other automation equipment.
• Advanced Diagnostics: Performs continuous self‑monitoring and fault detection, with real‑time status indication and detailed logging for rapid troubleshooting.
• High‑Isolation Design: Offers galvanic isolation on all I/O and communication channels, protecting the control logic from electrical noise and high‑voltage transients.
• Non‑Volatile Memory: Onboard flash memory stores critical configuration parameters, ensuring quick system recovery after power outages or module replacement.
• Precision Signal Processing: Delivers high‑accuracy analog signal conversion and processing, supporting precise measurement and control in power generation and drive applications.
• Seamless System Integration: Designed for direct plug‑and‑play installation into ABB UNITROL 5000 and ACS drive systems, ensuring full compatibility and simplified setup.

Application Scenarios

• Generator Excitation Control: Serves as the core control board for ABB UNITROL 5000 static excitation systems, regulating excitation current for synchronous generators in power plants.
• High‑Voltage Drive Systems: Integrated into ACS series medium‑voltage drives, providing interface and control functions for large motor applications.
• Power Generation Plants: Deployed in thermal, hydro, and gas turbine power plants for reliable generator voltage and reactive power control.
• Oil & Gas Industry: Used in compressor and pump drive systems, ensuring stable operation in offshore platforms and refineries.
• Industrial Manufacturing: Applied in heavy machinery, rolling mills, and extruders for precise motor control and process regulation.
• Water & Wastewater Treatment: Manages large pump motors and control systems in water treatment plants and distribution networks.
• Mining & Minerals Processing: Controls crushers, mills, and conveyor systems, withstanding extreme dust, vibration, and temperature conditions.
• Marine & Offshore: Installed in ship propulsion systems and offshore drilling equipment, providing robust control in marine environments.
• Cement & Building Materials: Controls kilns, raw mills, and material handling equipment in cement production facilities.
• General Industrial Automation: Functions as a universal interface and control solution for a wide range of industrial automation applications requiring reliable communication and I/O management.