We restocked three ABB excitation-system modules today. All three parts below are companion boards used together in ABB’s PEC80 / UNITROL 6000 / AC 800PEC excitation control platform, so this update should be useful if you’re sourcing spares for a UNITROL 6000 rack rather than looking at a single item in isolation.
ABB PCD231B (3BHE025541R0101) — Converter Control Interface (CCI)
The PCD231B, order code 3BHE025541R0101, is the Converter Control Interface board in ABB’s UNITROL 6000 excitation system, built on the AC 800PEC platform. It handles thyristor bridge rectifier control and measurement — 3-phase converter voltage and current, DC output voltage, gate driver communication to the GDI board, and interfacing to the CSI and SCI boards in the same rack. It’s a board you’ll typically encounter behind excitation trip alarms or gate-driver communication faults on synchronous generator excitation systems.
1 unit in stock.
ABB PCD231B
ABB PCD232A (3BHE022293R0101) — PEC80-CIO Combined I/O Module
The PCD232A, order code 3BHE022293R0101, is the PEC80-CIO combined input/output board — the direct companion to the PCD231B in the same PEC80 / UNITROL 6000 rack. It provides the digital and analog I/O channels, plus temperature sensor inputs, that the excitation controller uses to monitor rectifier bridge conditions and drive protective functions.
1 unit in stock.
ABB PCD232A
ABB GFD233A (3BHE022294R0101) — Analog Module for MEGADRIVE LCI
The GF D233 A, order code 3BHE022294R0101, is an analog I/O module built for ABB’s MEGADRIVE LCI drive system. It converts field-side analog signals (voltage/current) into the digital signals the LCI control system uses, acting as the data-acquisition bridge between analog instrumentation and the drive controller.
4 units in stock (two separate lots — 3 units + 1 unit).
ABB GFD233A
Why this matters for UNITROL 6000 / PEC80 spares
If you’re maintaining a UNITROL 6000 excitation cabinet, the PCD231B and PCD232A are usually needed as a pair — one handles the control/measurement logic, the other handles the physical I/O. Having both in stock at the same time is the less common situation; we usually see requests for one or the other during an emergency swap, which tends to stall a repair while the second board ships separately.
Condition and lead time
Please contact us directly for current condition (new/surplus/refurbished), pricing, and warranty terms on these specific units, as availability moves quickly on excitation spares. Reference the exact order code (3BHE0XXXXXR0101) when reaching out so we can confirm the correct revision against your system.
Have a UNITROL 6000, PEC80, or MEGADRIVE LCI part not listed here? Contact us — we source excitation and drive spares beyond what’s shown in current inventory.
