Product Description
ABB HIEE410301P2 is an I/O interface board for UNITROL excitation system, critical spare component for generator static excitation control system. OEM production is obsolete. Available supplies are new surplus stock and fully‑tested refurbished units. No direct OEM replacement, same‑model replacement is mandatory for equipment maintenance. This board handles digital signal acquisition, relay output and signal galvanic isolation. It performs signal exchange between excitation regulator, primary field equipment and external protection circuits. On‑board LED indicators support fast fault diagnosis, designed for rack back‑plane plug‑in installation.
Technical Specifications
| Item | Specification |
|---|---|
| Full Model | HIEE410301P2 |
| Product Type | Excitation System I/O Interface Board |
| Applicable System | ABB UNITROL Excitation Control System |
| Signal Type | Isolated digital input, relay contact output |
| Input Signal Level | 24VDC / 110‑220VDC |
| Output | Mechanical relay contact output |
| On‑board Indicator | LED for power supply, channel fault and running status |
| Mounting Style | Rack plug‑in module, back‑plane connector |
| Galvanic Isolation | Group‑wise isolation for industrial EMC immunity |
| Operating Temperature | 0℃～+60℃ |
| Storage Temperature | -25℃～+70℃ |
| Protection Class | IP20 (PCB board) |
| Certification | CE, IEC‑61000 EMC compliance |
| Weight | Approx. 0.45 kg |
| Country of Origin | Switzerland |
Product Application
- ABB UNITROL excitation systems for thermal, hydro and gas‑fired power‑plant generators.
- Digital status acquisition of excitation system; relay output for fault, alarm and trip signals.
- Signal interface between excitation regulator, generator protection and plant DCS system.
- Retrofit of legacy excitation equipment, defective board replacement and spare‑parts inventory.
- Signal interlocking and data exchange for synchronous‑generator excitation control loop.
Related Series Models
- HIEE410301P1: Early hardware revision I/O board, partial firmware incompatibility
- HIEE410408P201: Excitation pulse firing board for same rack assembly
- HIEE410409P104: Signal measurement & acquisition board, UNITROL accessory
- HIEE401481R1: Main CPU controller board for excitation system
- HIEE300698R1: Power supply module for UNITROL rack
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