GE DS200SDCCF1AFD SDCC Drive Control Board

Technical Specifications

Model: DS200SDCCF1AFD

Brand: GE（GE Vernova）

Product Type: SDCC multi‑processor drive control board

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

On‑board Processors: Three independent microprocessors for drive control, motor control and co‑motor control

Memory: Shared accessible RAM, non‑volatile EPROM for drive firmware and parameter storage

Communication Interface: Reserved expansion slot for DS200SLCC LAN communication daughter‑board, serial debugging port

Indicator: 10‑bit LED array, display running status and BCD/binary fault diagnostic codes

Power Supply: Cabinet backplane +5VDC, +15VDC, +24VDC power supply, typical power consumption 12.8W

Installation Note: EPROM chips need to be transferred when replacing the board

Mounting: Rack‑mount multilayer PCB board inside Mark V / EX2000 control cabinet

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

Humidity:5%‑95% non‑condensing

Protection Class:IP20, cabinet‑only installation

Weight:0.44kg

Dimension:240mm ×190mm ×30mm

Compatible System: Gas turbine, steam‑turbine generator EX2000 excitation control cabinet

Core Function

DS200SDCCF1AFD SDCC drive control board is core drive processing hardware for GE Mark V and EX2000 excitation system. It adopts three‑microprocessor collaborative architecture to complete drive operation, motor control logic and signal data processing. It can be equipped with SLCC LAN communication sub‑board to realize high‑speed data interaction between Directo‑Matic 2000 exciter unit and Mark V turbine main control system. Shared RAM realizes high‑efficiency data sharing among multiple processors. The 10‑bit LED array outputs real‑time fault diagnostic codes for quick on‑site troubleshooting. Non‑volatile EPROM retains drive configuration parameters after power‑off. It undertakes excitation drive regulation, analog‑digital signal conversion and built‑in self‑diagnosis functions, guarantees stable excitation output for generator units under complex power‑plant working conditions.

Product Details

DS200SDCCF1AFD belongs to SDCC series drive control board of GE Speedtronic Mark V / EX2000 excitation control system. Hardware pin‑to‑pin compatible with DS200SDCCG1AGD, EPROM chips need to be migrated from old board during replacement.

This rack‑mount PCB board is installed inside EX2000 excitation cabinet. Three independent on‑board microprocessors perform divided‑task computing for drive and motor control. Shared RAM ensures fast data exchange between processing units. Users can install optional LAN communication daughter‑card to expand network communication capability. Ten arranged LED lamps present operation status and fault codes, greatly improving maintenance efficiency. Non‑volatile EPROM keeps key configuration data without external power supply. Conformal coated circuit board improves anti‑vibration, moisture‑proof and anti‑electromagnetic‑interference performance, adapts to harsh working environment of power‑plant excitation cabinet. Widely deployed in gas‑steam turbine generator EX2000 excitation system for excitation drive control and signal processing.

It belongs to critical drive control spare‑part for EX2000 excitation system, widely used in overhaul and renovation projects of power generation units. It is important spare hardware for drive loop debugging and defective DS200SDCCF1AFD board replacement.