GE DS200SDCCG5AHD SDCC Drive Control Board

Technical Specifications

Model: DS200SDCCG5AHD

Brand: GE (GE Vernova)

Product Type: SDCC Multi‑processor Drive Control Board

Applicable System: Speedtronic Mark V turbine control system, EX2000 generator excitation system

On‑board Processor: Three independent microprocessors for drive, motor and co‑motor calculation

Memory: Shared RAM, five EPROM sockets for drive firmware and unit parameter storage

Communication Interface: Reserved SLCC LAN daughter‑board slot, serial debug test port

Indicator: 10‑bit LED diagnostic array for operation status and BCD fault code output

Power Supply: Cabinet backplane +5VDC, ±15VDC, +24VDC

Operating Temperature:‑30℃ ~ +65℃, non‑condensing

Humidity:5%‑95% non‑condensing

Protection Class:IP20, cabinet rack‑mount only

Weight:0.44kg

Dimension:240mm ×190mm ×30mm

Application: Power plant EX2000 excitation cabinet, turbine generator control system

Product Function Description

DS200SDCCG5AHD SDCC board serves as core computing hardware for EX2000 exciter unit. Triple‑microprocessor architecture executes excitation drive regulation, feedback signal calculation and interlock logic processing.

It supports SLCC LAN daughter‑board installation for high‑speed data exchange between exciter and Mark V main controller. Five EPROM chips store full drive firmware; EPROM modules must be transferred during board replacement to retain original unit configuration. 10‑bit LED array outputs fault codes for fast on‑site troubleshooting. G5‑AHD revision improves conformal coating and sampling circuit for enhanced noise immunity, ensuring stable closed‑loop excitation output for generator units.

Product Details

Rack‑mount multilayer PCB fits directly into Mark V / EX2000 cabinet slot. Conformal coating protects circuit from dust, moisture and heavy electromagnetic interference in power‑plant environment. Original OEM production has been ended, successor part DS215SDCC is not backward‑compatible. Widely used for generator overhaul and excitation spare replacement. ESD protection is required during handling. Transfer EPROM chips completely to keep original system parameters valid.