GE IS200DSPXH1DBD Digital Signal Processor Control Board

Technical Specifications

Model: IS200DSPXH1DBD

Brand: GE（GE Vernova）

Product Type: Digital signal processor control board

Matching System: GE Speedtronic Mark VI turbine control system, EX2100 generator excitation system

Power Supply: Backplane power supply, working voltage ±5V, +3.3V, power consumption ≤12W

Core Processor: 60MHz high‑speed DSP digital signal processor, with ASIC custom logic chip

Memory: FLASH for firmware storage, RAM for runtime calculation, NVRAM for non‑volatile parameter retention

Communication Interface: Dual ISBus high‑speed internal bus, VME backplane P1/P2 connector

Indicator: Dual LED status indicators for running and fault alarm

Installation: 6U single‑slot VME rack plug‑in installation

Operating Temperature:‑40℃ ~ +70℃, non‑condensing

Humidity:5%‑95% non‑condensing

Protection Class:IP20

Weight:0.58kg

Dimension:340mm ×178mm ×24mm

Compatible System: Gas‑steam turbine, synchronous generator EX2100 excitation control cabinet

Core Function

DSPX digital signal processor board for Mark VI and EX2100 excitation system. It completes inner‑loop excitation current and voltage closed‑loop regulation, generates SCR gate trigger commands sent to ESEL power board. It stores system configuration parameters through NVRAM to prevent parameter loss after power failure. It realizes high‑speed data interaction with EROC, ERDD and other boards via dual‑channel ISBus bus. It undertakes excitation flashing, start‑stop sequence, alarm and trip logic processing. It supports simplex and TMR triple‑modular redundant architecture, ensures fast response of generator excitation closed‑loop adjustment under grid fluctuation and load mutation conditions.

Product Details

The IS200DSPXH1DBD is DSPX series digital signal processor control board for GE Speedtronic Mark VI and EX2100 excitation control system.

This 6U VME rack‑mount board is the inner‑loop core computing unit of EX2100 excitation cabinet. The high‑speed DSP chip executes field voltage regulator and field current regulator algorithms, converts excitation adjustment instructions into SCR trigger calculation data and outputs to ESEL power unit. On‑board FLASH, RAM and NVRAM cooperate to realize firmware solidification, real‑time data operation and parameter power‑off preservation. Dual ISBus channels improve anti‑interference capability of internal data transmission between modules. Dual LED indicators intuitively feedback board running status and fault information, convenient for on‑site maintenance and fault location. Conformal coated circuit board improves anti‑vibration, moisture‑proof and anti‑electromagnetic‑interference performance, adapts to high‑noise harsh working environment of power plant excitation cabinet. Widely deployed in simplex and TMR triple‑modular redundant generator excitation cabinets for gas‑steam turbine units.

It belongs to core computing spare‑part for EX2100 excitation system, widely used in overhaul and renovation projects of power generation units.

It is important spare hardware for excitation algorithm loop debugging and defective IS200DSPXH1DBD board replacement.