ABB UFC721BE101 / 3BHE021889R0101

Model: UFC721BE101

Order No.: 3BHE021889R0101

Type: ABB Symphony/ACS1000 High Voltage Variable Frequency / Excitation Control Module (ADCVI Board), belonging to the high-performance field controller of the UFC series.

# 1. Basic Information

Brand: ABB (Swiss Origin)

Series: UFC721 (Universal Field Controller)

Functional Positioning: Integrated main control, IO and communication, applied to high-voltage frequency conversion, generator excitation and DCS process control.

Applicable Systems: ABB Symphony DCS, Advant OCS, ACS1000/ACS5000 high-voltage frequency converters.

# 2. Core Technical Parameters

## 2.1 Processor and Memory

CPU: ARM Cortex‑A8, 600 MHz

Memory: 256 MB RAM / 512 MB Flash

## 2.2 Power Supply

Input: 24 V DC (18–30 V DC)

Power Consumption: Approximately 12 W

## 2.3 I/O Channels

Analog Input AI: 8 channels (0–4 V / 4–20 mA)

Analog Output AO: 4 channels (0–4 V / 4–20 mA)

Digital Input DI: 8 channels, 24 V DC

Digital Output DO: 8 channels, Relay / Transistor

## 2.4 Communication Interfaces

Ethernet: Dual-port 10/100 Mbps (Modbus TCP, EtherNet/IP, PROFINET IO)

Serial Port: RS‑485

Backplane Bus: ABB dedicated redundant bus

## 2.5 Environmental and Mechanical Specifications

Operating Temperature: ‑20 ℃ ~ +60 ℃ (Wide temperature version: ‑40 ℃ ~ +85 ℃)

Ingress Protection Rating: IP20 (Inside Cabinet)

Dimensions (Width × Height × Depth): Approximately 220 × 125 × 35 mm

Weight: Approximately 0.5 kg

Certifications: CE, UL, TUV (Power Station / Frequency Conversion Grade)

# 3. Model Definition

UFC721BE101

UFC: Universal Field Controller

721: High-voltage Frequency Conversion / Excitation Control Series

BE: Hardware Variant (B = Standard, E = Enhanced)

101: Version Number (Wide Temperature / High Reliability)

3BHE021889R0101: Exclusive original factory part number, which must be used for procurement and replacement.

# 4. Typical Applications

High-voltage Frequency Conversion: Main control and IO interface board for ACS1000/ACS5000 series.

Power Excitation: Generator excitation regulation and grid connection control in thermal power / hydropower plants.

Process DCS: High-precision closed-loop control (temperature / pressure / flow) in metallurgy, chemical, oil and gas industries.