GE DS3800HVDB1K1G VDB Servo Drive Board

Feature & Principle

It is a dedicated servo valve drive module for GE Speedtronic Mark IV turbine control rack. It receives control commands from main CPU, converts digital signals into isolated ±10VDC analog drive signals to control hydraulic servo valves for fuel, gas and steam regulation. Each channel has independent signal isolation and fault monitoring, conformal coated PCB for anti-corrosion, and feeds back channel status to the main control system. This series is discontinued, only for maintenance replacement of old gas turbine units.

Specifications

Model: DS3800HVDB1K1G Brand: GE Series: Speedtronic Mark IV Channels: 4 analog output channels Output signal: ±10VDC Power supply: +5VDC backplane supply Isolation: Channel-to-system isolation Response time: <5ms Working temperature: 0 ~ 60℃ Humidity: 5~95% non-condensing Installation: 19 inch rack plug-in Application: Gas turbine fuel valve, steam valve servo control Certification: CE

Components & Diagnostics

Analog drive amplifier circuit, signal isolation unit, status monitoring circuit, edge connector, terminal block, status LED. Common faults: channel drift, no analog output, signal distortion, connector oxidation, board aging.

Product Brief

DS3800HVDB1K1G servo valve drive board, GE obsolete gas turbine spare widely used for Mark IV control cabinet overhaul and replacement.