GE DS200TCQAG1BHF TCQA Analog Input & Output Control Board

GE DS200TCQAG1BHF (abbreviated TCQA) is a dedicated analog signal conditioning & I/O expansion board belonging to GE DS200 series, exclusively designed for 

GE Speedtronic Mark V gas & steam turbine control system. It receives raw field analog signals from terminal boards, completes amplification, filtering, scaling and 

isolation processing for LVDT feedback, servo valve drive signals, thermocouple, 4–20mA and 0–10V process signals. It transmits conditioned data to main control 

CPU via backplane bus, and outputs regulated analog commands to hydraulic servo actuators for fuel valve, steam valve positioning regulation.

 It is a core indispensable signal processing spare part for turbine closed-loop speed, load and combustion control.

Technical Specifications

Part Number: DS200TCQAG1BHF

Functional Code: TCQA

Manufacturer: General Electric (GE)

Applicable System: Speedtronic Mark V Turbine Control

Signal Type: LVDT processing, 4–20mA, 0–10V, thermocouple, servo analog output

Onboard Connectors: Four 34-pin, two 40-pin terminal connectors

Diagnostic Indicator: 6 status LED indicators for channel & fault diagnosis

Power Supply: 24VDC nominal

Operating Temperature: -20°C ~ +60°C

Humidity: 5%–95% non-condensing

Protection Grade: IP20

Net Weight: Approx. 0.54 kg

Certification: CE, UL, RoHS

Origin: USA

Key Features

Multi-channel integrated analog signal conditioning, compatible with LVDT displacement, pressure, temperature, flow and servo actuator signals commonly used on turbines.

Built-in electrical isolation and anti-interference circuit to resist strong electromagnetic interference inside turbine cabinet, ensuring stable signal acquisition precision.

Multiple onboard LEDs for quick channel status check and on-site fault troubleshooting.

Standard plug-in rack structure, fully backward compatible with base model DS200TCQAG1B, direct plug-and-play replacement to shorten unit maintenance downtime.

Industrial conformal coated PCB design, shock and vibration resistant for long-term continuous operation in power plant harsh environment.