GE DS3800NGRD1D1C Control Circuit Board

GE DS3800NGRD1D1C Full English Product Specification
Basic Product Information
Brand: General Electric (GE)
Model / Order Part No.: DS3800NGRD1D1C
Product Name: Mark IV Turbine Regulator Control Circuit Board
Place of Origin: United States
HS Code: 8538909200
Compatible System: GE Speedtronic Mark IV Turbine Governing Control System
Mounting: Standard rack plug-in regulator board, IP20 cabinet internal installatio

Physical Specifications
Overall Dimension: 385 mm (L) × 245 mm (W) × 22 mm (Thickness)
Net Weight: 0.92 KG
PCB: Conformal coated multi-layer control circuit board
Connectors: P4, P6 edge connectors for rack backplane signal transmission
Adjustment Components: PID gain trimming potentiometers, configuration jumpers
Indicator LED: Speed error, valve output, overspeed trip status lights
Electrical Input Specifications
1. Rack Backplane Power Input: ±15 VDC analog power, +5 VDC logic power
2. Regulator Feedback Signal Input: Magnetic pickup turbine speed AC signal, 4–20mA load setpoint analog signal
3. Overspeed Trip Interlock Input: Dry contact emergency stop and overspeed limit switch signals
4. Operating EnvironmentWorking Temperature: 0°C ~ +65°C
Storage Temperature: -40°C ~ +85°C
Humidity: 5%–95% non-condensing
5. Anti-interference: On-board filter capacitor and transient suppression circuit for power plant electromagnetic noise
Signal & Control Output Interface
1. Fuel Valve Analog Drive Output: 0–20mA proportional current signal to hydraulic actuator
2. Overspeed Trip Relay Output: Form C contact signal for turbine emergency shutdown interlock
3. Mark IV Rack Parallel Bus Output: Governing setpoint and speed deviation data transmission to main CPU
4. PID Adjustment Calibration Output: Reference trim signal for on-site governing loop parameter tuning
5. Fault Diagnostic LED Output: Visual indication of speed signal loss, actuator overload and overspeed trip status
Core Technical Parameters
Control Algorithm: Analog hardware PID speed & load closed-loop regulation
Overspeed Trip Threshold: Hardware fixed threshold overspeed protection logic
Adjustable Control Parameters: Proportional gain, integral time, derivative time via onboard trimmers
Signal Input Range: 0.5–120VAC magnetic pickup speed feedback
Compatibility: Matched with DS3800HIOB I/O board and Mark IV DS3800 series rack power supply