ABB UAD154A 3BHE026866R0101 Analog & Binary I/O Interface Board

Description

Hardware & Electrical Specifications

• Model：UAD154A
• Part Number：3BHE026866R0101
• Module Type：Analog & Binary I/O Interface Board
• Bus Interface：Internal high‑speed back‑plane connector for data exchange with main processor
• Analog Channels：Multi‑channel galvanic‑isolated analog input / analog output
• Binary Channels：Multi‑channel isolated binary input; relay‑contact binary output
• Power supply：24 V DC cabinet internal power supply
• Max power consumption：12 W
• Galvanic isolation：≥2500 V AC between field‑signal side and control‑logic side
• Dielectric strength：2500 V AC 1 minute
• Insulation resistance：＞100 MΩ @ 500 V DC
• On‑board protection：Channel surge suppression, ESD protection, over‑current protection, conformal coated PCB
• Compatibility note：Must match UNITROL6000 full‑system firmware; cannot operate standalone, must cooperate with PPC‑series main‑processor hardware.

Environmental Specifications

• Operating temperature：‑10 ℃ ~ +60 ℃
• Storage temperature：‑40 ℃ ~ +85 ℃
• Relative humidity：5%‑95% non‑condensing
• Protection degree：Installed inside excitation cabinet rack
• EMC compliance：IEC 61000‑6‑2 industrial electromagnetic immunity standard
• Certifications：CE

Mechanical Data

• Installation：Plug‑in rack‑mount board, installed inside UNITROL6000 cabinet
• Interfaces：Internal back‑plane connector; external terminal block for field I/O wiring
• Suitable wire cross‑section：0.75 mm²‑2.5 mm² copper cable for signal terminals
• Terminal tightening torque：0.6‑1.0 N·m
• Dimension：233 mm × 160 mm × 25 mm
• Weight：approx 0.65 kg

Main Functions

1. Isolated analog signal output: Converts digital set‑point commands from main processor into isolated analog output signals for cabinet auxiliary peripheral equipment.
2. Auxiliary analog signal acquisition: Collects field auxiliary analog signals, completes signal conditioning and A/D conversion, sends measured values to main processor.
3. Relay‑type binary output: Provides dry‑contact relay outputs for excitation system alarm indication, external interlock and auxiliary device control.
4. Binary status input processing: Acquires dry‑contact status from cabinet auxiliary devices, converts field contact signals into digital logic for interlock protection and sequence control.
5. Channel‑level fault monitoring: Detects analog channel abnormality, binary‑output fault and input‑signal loss, reports fault codes to main processor.
6. Board‑level self‑diagnosis: Monitors on‑board power supply and hardware logic status; uploads hardware fault alarms to UNITROL6000 system.
7. On‑board multi‑LED status indication
   • Green LED：Board power supply normal, board logic running healthy
   • Yellow LED：I/O channel signal active, data transmission ongoing
   • Red LED：Channel fault / board hardware fault alarm

Installation & Wiring Requirements

1. Cut off cabinet total power before disassembly and assembly. Insert UAD154A into designated rack slot and fasten fixing screws firmly. Hot‑swap is strictly forbidden.
2. Connect field analog and binary‑signal cables to corresponding terminal blocks; strictly follow excitation cabinet wiring specification; separate high‑power cables and weak‑signal cables to reduce electromagnetic interference.
3. Cabinet protective grounding must comply with ABB AC800‑PEC / UNITROL6000 system grounding specification.
4. After replacement, verify full‑system firmware compatibility with main processor board; download matching project parameters; perform analog‑channel calibration and binary‑input/output function test before unit commissioning.
5. Replacement note: Cannot run independently; must match corresponding main‑processor hardware and full‑system firmware version.