ABB KUC720AE01 (3BHB003431R0001 / 3BHB000652R0001)

Analog I/O & Communication Control Board – English Specification (No Images)

1. General Information

• Model: KUC720AE01

• ABB Part Numbers: 3BHB003431R0001, 3BHB000652R0001

• Product Type: Analog Input/Output + Communication Control Board

• Applicable System: ABB Industrial DCS, Power Plant Controls, Medium Voltage Drives, Process Automation

• Function: Precision analog signal acquisition, digital I/O control, high‑speed data communication, system interconnection

• Country of Origin: Sweden

• Weight: approx. 0.35 kg

• Form Factor: Standard ABB rack‑mount PCB, conformal coated

2. Electrical Specifications

• Supply Voltage: 24 VDC (backplane supplied)

• Power Consumption: typical 0.6 A (14.4 W max)

• Analog Inputs (AI):

  • Signal Ranges: 4–20 mA, 0–20 mA (field selectable)

  • Channels: 8 differential, channel‑to‑channel isolated

  • Resolution: 16‑bit A/D converter

  • Accuracy: ±0.1% full scale

  • Filter: Hardware filter (1 ms rise time); software filter configurable

  • Transmitter Supply: 24 VDC, current limited to 30 mA (for 2‑wire/4‑wire devices)

• Analog Outputs (AO):

  • Range: 4–20 mA, 0–10 VDC selectable

  • Channels: 4 isolated

  • Resolution: 12‑bit

• Digital I/O (DIO):

  • Inputs: 8 channels, 24 VDC logic, sink/source configurable

  • Outputs: 8 channels, relay/transistor selectable, 24 VDC/0.5 A

• Isolation: 250 VAC galvanic isolation (field vs control circuits)

• Protection: Overcurrent, overvoltage, short‑circuit, reverse polarity

3. Communication & Interfaces

• Internal Bus: ABB proprietary system bus

• Protocols: Modbus RTU, PROFIBUS DP, HART (Revision 7 supported)

• Ports:

  • RS‑485 (isolated)

  • Ethernet 10/100 Mbps (RJ45)

• Data Rate: Up to 12 Mbps (fieldbus)

• Connector: 96‑pin DIN for field wiring

• HART Features: HART pass‑through, read up to 2 HART variables per loop, device diagnostics

4. Environmental Ratings

• Operating Temperature: -40 °C to +70 °C

• Storage Temperature: -40 °C to +85 °C

• Relative Humidity: 5%–95% RH, non‑condensing

• Protection Class: IP20 (board level)

• Vibration: IEC 60068‑2‑6 compliant

• Certifications: CE, RoHS, UL

5. Mechanical & Installation

• Dimensions (mm): approx. 135 × 75 × 35

• Mounting: ABB standard rack slot, hot‑swap capable

• Wire Gauge: Up to 2.5 mm²

• Coating: Conformal coated for harsh industrial environments

6. Key Features

• High‑Precision Analog: 16‑bit AI, isolated channels, HART support

• Multi‑Protocol Comm: Native Modbus, PROFIBUS, and HART integration

• Industrial Robustness: Wide temperature range, conformal coating, full isolation

• Comprehensive Diagnostics: Loop monitoring (open/short circuit), hardware fault detection, communication supervision

• Flexible I/O Mix: 8AI + 4AO + 8DI + 8DO for versatile control

7. Applications

• Power generation (turbine, boiler, excitation systems)

• Process automation (chemical, pulp & paper, water/wastewater)

• Medium voltage drive control (ACS series)

• HART instrument integration (pressure, level, flow transmitters)

• Industrial IoT and SCADA connectivity