ABB UAD206A101 3BHE019958R0101 Mixed I/O Interface Board

Technical Specifications

• Model: UAD206A101

• Part Number: 3BHE019958R0101

• Brand: ABB

• Product Type: Mixed I/O signal interface board

• Matching Platform: ABB AC800PEC control platform, UNITROL excitation system

• Power Supply: Supplied by system backplane, 24VDC system power supply

• Channel Type: Analog input, analog output, digital DI/DO mixed channels

• Communication Mode: Internal backplane bus communication, no front‑side external fieldbus interface

• Installation Method: Plug‑in rack card, fixed by locking screws

• Operating Temperature: 0℃ ~ +55℃, non‑condensing

• Protection Class: IP20

• Weight: 0.5kg

• Dimension: 150mm × 102mm × 51mm

• Compatible System: ABB AC800PEC, UNITROL series generator excitation system

• Core Function: Complete field analog and digital signal collection and control output, realize signal conditioning and transmission for generator excitation closed‑loop regulation.

• 
  

Product Details

The UAD206A101 3BHE019958R0101 is high‑performance Mixed I/O Interface Board for ABB AC800PEC and UNITROL excitation system, it acts as key Excitation Signal Processing Unit.

This plug‑in board is installed in system card frame, it integrates multi‑channel mixed I/O resources. It collects voltage, current and switch status signals from generator field side, outputs adjusting control signals for excitation regulator. It transmits data to main controller through internal backplane bus, guarantees stable signal transmission for excitation closed‑loop control. Compact single‑slot structure saves cabinet installation space.

Front‑panel LED status indicators reflect module power‑on, channel and backplane bus running status. Built‑in hardware self‑diagnosis function can detect channel over‑range, signal abnormality and board hardware failure, fault status can be uploaded to upper monitoring system. Industrial‑grade circuit design provides good anti‑interference performance for power plant cabinet environment.

Widely applied in thermal power, hydropower generator excitation transformation and power electronics control projects. It is important spare part for UNITROL excitation system maintenance, signal channel expansion and defective UAD206A101 board replacement.