GE DS200TCQCG1BGF TCQC Termination Overflow Board

Technical Specifications

Model: DS200TCQCG1BGF

Brand: GE（GE Vernova）

Product Type: TCQC I/O termination overflow board

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

Signal Type: Multi‑channel analog & digital signal termination and signal conditioning

Connector: Removable field wiring terminal block, multi‑pin internal board‑to‑board connector

Function Interface: Matches SDCC drive control board for field signal routing

Power Supply: Cabinet backplane +5VDC, +24VDC power supply, typical power consumption 8.5W

Indicator: On‑board LED status indicators for channel signal and power status

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

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

Humidity:5%‑95% non‑condensing

Protection Class:IP20, cabinet‑only installation

Weight:0.48kg

Dimension:242mm ×191mm ×31mm

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

Core Function

DS200TCQCG1BGF TCQC termination overflow board is the field signal interface hardware for GE Mark V and EX2000 excitation system. It acts as signal termination overflow board cooperating with SDCC drive control board. It routes and conditions multi‑channel field analog and digital I/O signals between on‑rack control logic board and field site equipment. Removable terminal block facilitates field wiring, maintenance and module replacement without re‑wiring. It filters industrial interference signals, converts field signals to acceptable level for main control board. It undertakes signal distribution, surge suppression and status monitoring functions, ensures stable signal transmission for excitation drive regulation and turbine protection interlock logic.

Product Details

DS200TCQCG1BGF belongs to TCQC series termination overflow board of GE Speedtronic Mark V / EX2000 excitation control system.

This multilayer rack‑mount PCB board is installed inside EX2000 excitation cabinet. It works cooperatively with SDCC drive control board, serving as intermediate signal overflow termination unit between drive controller and field devices. The removable terminal block greatly simplifies field wiring work, convenient for on‑site troubleshooting and board replacement. Built‑in signal conditioning and surge suppression circuits filter industrial noise and interference. On‑board LED indicators help maintenance staff quickly check channel working status. 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 field I/O signal termination and routing processing.

It belongs to critical signal termination spare‑part for EX2000 excitation system, widely used in overhaul and renovation projects of power generation units. It is important spare hardware for signal loop debugging and defective DS200TCQCG1BGF board replacement.