Description
ABB HIEE300888R0002 | UAC389AE02 Excitation & Control Processor PCB Board
Product Detailed Description
HIEE300888R0002, board designation UAC389AE02, is a discontinued ABB high‑performance industrial processor PCB manufactured in Sweden. It serves as core control hardware for Unitrol 5000 / Unitrol 6000 static excitation systems, Symphony INFI‑90 DCS platform, and ACS6000 medium‑high voltage variable‑frequency drives. This board implements generator excitation regulation, direct‑torque motor control, closed‑loop PID logic, interlock protection, and high‑speed backplane data exchange between power stacks, field sensors and main controllers. Original factory production is terminated; available supplies are surplus new‑old‑stock, refurbished or pull‑out spare units.
Technical Parameters
| Item | Specification |
|---|---|
| Manufacturer | ABB |
| Part Number | HIEE300888R0002 |
| Board Model | UAC389AE02 |
| Origin | Sweden |
| Product Status | Discontinued by OEM, spare‑part only |
| Processor | 32‑bit Motorola 68000 series RISC CPU |
| Memory | 256 KB RAM, 512 KB Flash Memory |
| Power Supply | 24 VDC ±10 %, Max 8 W power consumption |
| Backplane Bus | Dedicated internal high‑speed parallel/serial backplane interface |
| Signal Channels | Multi‑channel analog / digital signal conditioning for excitation feedback, CT/PT measurement signals |
| Operating Temperature | -25 °C ~ +70 °C |
| Storage Temperature | -40 °C ~ +85 °C |
| Humidity | 5‑95 % RH, non‑condensing |
| MTBF | 250 000 Hours typical value |
| Physical Dimension | 120 × 130 × 45 mm |
| Weight | Approx. 0.45‑0.5 kg |
| Compliance | CE, UL 508, IEC 61131‑2 |
Compatibility & Installation Pitfalls
Compatibility
- Unitrol 5000 / Unitrol 6000 generator static excitation control cabinets
- ABB Symphony INFI‑90 DCS rack chassis
- ACS6000 medium‑high voltage frequency converter main control cabinet
Note: This board is chassis‑lock dependent; it cannot run standalone. Firmware version must match existing system firmware revision, version mismatch causes communication drop‑out or protection tripping.
Installation Pitfalls
- Hot‑swap risk: Although hardware supports hot‑swap, forced hot‑plug under running excitation system may trigger generator field trip; perform power‑down replacement for power‑generation units.
- Backplane connector damage: Gold‑plated backplane pins are fragile. Mis‑alignment during insertion scratches contact surfaces and creates intermittent communication faults.
- Firmware mismatch: Using board with different firmware revision without reprogramming leads to loss of control logic, excitation oscillation or false protection alarms.
- ESD damage: PCB is sensitive to static electricity. Anti‑static wrist strap and mat are mandatory during handling; static discharge will damage onboard FPGA and memory chips without visible marks.
- Environmental stress: Avoid installation near high‑power thyristor power units; strong electromagnetic interference distorts measurement feedback signals.
- Part‑number confusion: Multiple vendors mislabel similar ABB PCBs. Verify both part number HIEE300888R0002 and silkscreen UAC389AE02 on physical board, do not rely only on quotation model text.
Standard Operating Procedure (SOP)
- Pre‑work: Confirm system stop‑permit, cut off rack DC24V auxiliary power and high‑voltage power; wear ESD anti‑static protection equipment.
- Record: Document existing firmware version, system parameter backup via engineering tool before board replacement.
- Removal: Release locking levers, pull out old board steadily, avoid skewing to prevent backplane pin bending.
- Inspection: Visually inspect new spare board for trace burn, connector pin deformation, confirm part number marking consistency.
- Insertion: Align board with chassis guide slot, push flat and lock levers securely.
- Commissioning: Restore auxiliary power; check backplane communication status, download matching firmware if version inconsistency detected, restore saved application parameters.
- Functional test: Execute static excitation simulation test, verify CT/PT signal sampling, interlock logic and protection function.
- Hand‑over: Complete on‑site test log, keep spare original board for failure analysis.
Application Scenarios
- Power generation: Thermal power, hydro‑power, pumped‑storage and nuclear synchronous generator excitation control for Unitrol 5000 / 6000 systems
- Heavy‑duty drive: ACS6000 medium‑high‑voltage inverter for metallurgical rolling mills, mine hoists, cement main drives, marine electric propulsion
- Process DCS: Symphony INFI‑90 distributed control system for chemical, oil‑gas and pulp‑paper plant closed‑loop control & safety interlock
- Retrofit project: Legacy power‑plant excitation system refurbishment, using stock spare boards for life‑extension of old assets
Matching & Supporting Components
- Corresponding rack backplane for Unitrol 6000 / Symphony INFI‑90 chassis
- 24 VDC redundant power supply module for control rack
- Engineering download cable & ABB excitation system configuration software tool
- Signal terminal blocks for CT, PT, RTD field‑wiring
- Spare anti‑static packaging for storage of removed faulty board
Brand‑Related Alternative & Recommended Models
- 3BHE022291R0101: Main control board for ACS6800, modern replacement for ACS6000 upgrade projects
- AC800M controller + S800 I/O series: DCS migration replacement for legacy Symphony INFI‑90 platform
- UNITROL 6020: New‑generation ABB excitation controller, full‑function drop‑in upgrade for Unitrol 5000/6000 cabinet retrofit
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