ABB UAC389AE02 HIEE300888R0002 Enhanced Measurement Unit Board

Description

Hardware & Electrical Specifications

• Model：UAC389AE02
• Part Number：HIEE300888R0002
• Module Type：Enhanced Measurement Unit Board
• Bus Interface：6U VME back‑plane bus for high‑speed data interaction with main processor
• Analog Input：Multi‑channel galvanic‑isolated analog input for generator voltage and current signals
• Binary Input：Multi‑channel isolated binary status input for cabinet interlock and auxiliary signals
• On‑board Resource：Optimized signal conditioning circuit, high‑resolution A/D converter, hardware fault‑monitoring logic
• Power supply：24 V DC internal cabinet power supply
• Max power consumption：14 W
• Galvanic isolation：≥2500 V AC between field signal side and VME logic side
• Dielectric strength：2500 V AC 1 minute
• Insulation resistance：＞100 MΩ @ 500 V DC
• On‑board protection：Surge suppression for each input channel, ESD protection, over‑range monitoring, conformal coated PCB
• Compatibility note：Must match UNITROL6000 full‑system firmware; backward replacement for UAC383AE01 requires firmware confirmation; cannot run standalone.

Environmental Specifications

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

Mechanical Data

• Installation：Standard 6U VME Euro‑card, inserted into VME rack slot of excitation cabinet
• Interfaces：VME back‑plane gold‑finger connector; terminal block connectors for analog and binary signal 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：6U VME standard board
• Weight：approx 0.76 kg

Main Functions

1. High‑precision multi‑channel analog signal acquisition & conditioning: Collects generator PT voltage and CT current signals, completes filtering, isolation and signal conditioning before A/D conversion.
2. High‑resolution A/D conversion: Converts conditioned analog signals into digital measured values, delivers data to main processor for AVR closed‑loop regulation, limitation and protection calculation.
3. Binary interlock‑signal processing: Acquires cabinet auxiliary contact status, converts field dry‑contact signals into digital logic for excitation interlock protection and sequence control.
4. Real‑time measurement data transmission: Uploads analog measured values and binary status data to main processor through VME back‑plane bus.
5. Rich input‑channel fault diagnosis: Detects analog signal loss, over‑range, channel abnormal and binary‑input failure, reports detailed fault codes to system.
6. Board‑level comprehensive self‑diagnosis: Monitors on‑board power supply, A/D conversion unit and hardware logic status, uploads hardware fault alarm to UNITROL6000 system.
7. On‑board multi‑LED status indication
   • Green LED：Board power supply normal, board logic running healthy
   • Yellow LED：Signal acquisition active, VME data transmission ongoing
   • Red LED：Input‑channel fault / board hardware fault alarm

Installation & Wiring Requirements

1. Cut off cabinet total power before disassembly and assembly. Insert UAC389AE02 into designated VME rack slot, lock front‑panel handles firmly. Hot‑swap is strictly forbidden.
2. Connect generator measurement analog cables and cabinet 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 matched project parameters; perform analog‑channel calibration and binary‑input function test before unit commissioning.
5. Replacement note: When replacing old UAC383AE01 board, confirm full‑system firmware version supports UAC389AE02; cannot operate independently, must cooperate with PPC‑series main‑processor hardware.