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
• Analog Input：Multi‑channel galvanic‑isolated analog inputs for generator voltage and current
• Binary Input：Multi‑channel isolated binary dry‑contact inputs for interlock & auxiliary status
• On‑board resource：Signal conditioning circuit, high‑resolution ADC, hardware fault monitoring logic
• Power supply：24 V DC cabinet internal power
• 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：Channel surge suppression, ESD protection, over‑range monitoring, conformal coated PCB
• Compatibility note：Must match UNITROL6000 full‑system firmware; backward replacement for UAC383AE01 requires firmware validation; cannot operate standalone.

Environmental Specifications

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

Mechanical Data

• Installation：Standard 6U VME Euro‑card, insert into VME rack slot
• Interfaces：VME back‑plane gold‑finger connector; terminal blocks for analog & binary field 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. Multi‑channel analog signal acquisition and conditioning: Collects generator PT/CT voltage‑current signals, implements filtering, isolation and signal conditioning before A/D conversion.
2. High‑resolution A/D conversion: Converts conditioned analog signals to digital values, delivers measurement data to main CPU for AVR closed‑loop regulation, limitation and protection calculation.
3. Binary interlock signal processing: Acquires cabinet auxiliary dry‑contact status, converts field signals to digital logic for excitation interlock and sequence control.
4. Real‑time data transmission: Uploads analog measured values and binary status to main processor through VME back‑plane bus.
5. Channel fault detection: Detects analog signal loss, over‑range, channel abnormality and binary‑input failure, reports detailed fault codes.
6. Board‑level self‑diagnosis: Monitors on‑board power, ADC unit 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：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 slot and lock front‑panel handles firmly. Hot‑swap is strictly forbidden.
2. Connect generator measurement cables and binary‑signal cables to corresponding terminal blocks; follow excitation cabinet wiring specification; separate high‑power cables and weak‑signal cables to reduce electromagnetic interference.
3. Cabinet protective grounding shall 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 function test before commissioning.
5. Replacement note: When replacing older UAC383AE01, confirm system firmware supports UAC389AE02; cannot run independently, must cooperate with PPC‑series main‑processor hardware.