3BHE024855R0101 UFC921A101 通信接口板卡

一.基本身份

• 型号：3BHE024855R0101 = UFC921A101（物料号 + 板卡型号）
• 品牌：ABB
• 全称：MC Interface Board / 传动控制接口板（常被叫通信接口板、驱动控制板）

• 所属系统：ACS 800PEC / Advant 800xA / Freelance 800F，多用于发电机励磁、大功率变频传动、DCS 接口

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二、核心定位

• 上位：连 DCS/PLC（800xA/800M）
• 下位：控 IGBT 功率单元 / 励磁桥

• 本地：带 模拟 / 数字 I/O，做信号采集与联锁

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三、关键参数

1. 硬件

• 处理器：高性能嵌入式 CPU（双 DSP+FPGA 架构）
• 电源：24VDC 供电
• 尺寸 / 重量：约 330×158×30mm / 0.35kg
• 防护：IP20，涂层防潮防尘，宽温 -20℃～+60℃

2. 通信接口（核心）

• 以太网：Modbus TCP、Profinet、Ethernet/IP
• 串口：RS-232/RS-485（Modbus RTU）
• 现场总线：Profibus-DP、AF100、Masterbus 300
• 背板总线：连 ABB 传动内部总线

3. I/O 配置（板载）

• 模拟输入：8 路（0–10V / 4–20mA）
• 模拟输出：4 路（0–10V / 4–20mA）
• 数字输入：16 路（24VDC）

• 数字输出：8 路（继电器 / 晶体管）

四、典型应用

1. 发电机励磁系统（替代 PCD230 部分功能，侧重通信 + 功率接口）
2. 大功率变频传动（冶金、轧机、造纸、水泥）
3. DCS 与传动 / 励磁的网关接口

4. AC 800PEC 变频器主控板

五、 对比

• UFC921A101（3BHE024855R0101）：ABB 传动 / 励磁主控 + 通信板，带 I/O，连 DCS + 功率单元，侧重传动控制 + 协议转换。
• PCD230：ABB 励磁专用控制模块，侧重励磁调节、AVR、同步。
• IS420ESWDH1A：GE Mark VIe 交换机，只做网络转发，无控制功能。
• 8440-1831：WOODWARD 发电机并机控制器，独立同步 + 负载分配。

One Basic identity

Model: 3BHE024855R0101=UFC921A101 (material number+board model)

Brand: ABB

Full name: MC Interface Board/Transmission Control Interface Board (commonly referred to as Communication Interface Board, Drive Control Board)

System: ACS 800PEC/Advant 800xA/Freelance 800F, commonly used for generator excitation, high-power variable frequency drive, DCS interface

UFC921A101) (3).jpg

2、 Core positioning

It is not a regular "communication board", but a three in one board that combines the main control, communication, and I/O of the transmission/excitation system:

Upper level: connected to DCS/PLC (800xA/800M)

Lower level: Control IGBT power unit/excitation bridge

Local: Equipped with analog/digital I/O for signal acquisition and interlocking

3、 Key parameters

1. Hardware

Processor: High performance embedded CPU (dual DSP+FPGA architecture)

Power supply: 24VDC power supply

Size/Weight: Approximately 330 × 158 × 30mm/0.35kg

Protection: IP20, moisture-proof and dustproof coating, wide temperature range of -20 ℃ to+60 ℃

2. Communication interface (core)

Ethernet: Modbus TCP, Profinet, Ethernet/IP

Serial port: RS-232/RS-485 (Modbus RTU)

Fieldbus: Profibus DP, AF100, Masterbus 300

Backplane bus: connected to ABB drive internal bus

3. I/O configuration (onboard)

Analog input: 8 channels (0-10V/4-20mA)

Analog output: 4 channels (0-10V/4-20mA)

Digital input: 16 channels (24VDC)

Digital output: 8 channels (relay/transistor)

4、 Typical applications

Generator excitation system (replacing some functions of PCD230, focusing on communication+power interface)

High power variable frequency drive (metallurgy, rolling mill, papermaking, cement)

Gateway interface between DCS and transmission/excitation

AC 800PEC inverter main control board

5、 Comparison

UFC921A101 (3BHE024855R0101): ABB drive/excitation main control+communication board, with I/O, connected to DCS+power unit, focusing on drive control+protocol conversion.

PCD230: ABB excitation dedicated control module, focusing on excitation regulation AVR、 Synchronize.

IS420ESWDH1A: GE Mark VIe switch, only for network forwarding, without control function.

8440-1831: WOODWARD generator parallel controller, independent synchronization+load distribution.