GE DS200DCFBG1BNC DC Power Feedback Board

Description

Technical Specifications

• Manufacturer: General Electric (GE) Industrial Solutions
• Model: DS200DCFBG1BNC
• Product Series: Mark V Speedtronic Turbine Control System
• Form Factor: 3U VMEbus-compliant board (140 mm × 160 mm × 20 mm)
• Weight: Approx. 0.5 kg
• Input Power:
  • AC Input: 38–115 VAC, 47–63 Hz (from control power transformer)
• Output Power Supplies:
  • +5 VDC: For digital logic circuits
  • ±15 VDC: For analog instrumentation and amplifiers
  • ±24 VDC: For relay outputs and field circuits
  • Max Output Current: 10 A (24 VDC output)
  • Voltage Regulation: ±1% (0–100% load variation)
  • Output Ripple: ≤150 mVp-p
• Feedback Signal Interfaces:
  • 1 × BNC Connector: Main DC feedback input (75 Ω impedance, RG58 compatible)
  • 2 × Terminal Block Auxiliary Inputs: For additional voltage/current signals
• Signal Input Ranges:
  • Voltage: 0–5 VDC, 0–10 VDC
  • Current: 4–20 mA DC
  • Tachometer: Up to 10 kHz pulse input
• Signal Processing Accuracy:
  • Voltage Error: ≤±0.1% Full Scale (FS)
  • Current Error: ≤±0.2% FS
• Configuration:
  • 12 × Configurable Jumpers
  • 7 × DIP Switches for mode and address selection
• Communication: VMEbus interface for system data exchange
• Environmental Ratings:
  • Operating Temperature: -40°C to +70°C
  • Storage Temperature: -55°C to +85°C
  • Humidity: 5%–95% non-condensing
  • Vibration: 5–2000 Hz, 0.1 g²/Hz
• Compliance: CE, UL 60950-1, IEC 60947-4-1
• Status: Obsolete (discontinued, available as legacy stock or replacement)

Key Features

• Integrated Power & Feedback: Combines precision control power generation with high-accuracy DC feedback conditioning, reducing system complexity and part count.
• High-Precision Signal Acquisition: Utilizes low-noise amplifiers and active filtering to ensure accurate, noise-immune measurement of motor voltage, current, and speed for tight closed-loop control.
• BNC & Terminal Block I/O: Flexible interface options support both high-frequency (BNC) and standard industrial (terminal block) signal connections, simplifying integration with diverse sensors.
• Robust Industrial Design: Conformal coating, heavy-duty components, and vibration-resistant construction ensure reliable operation in harsh environments (dust, moisture, extreme temperatures).
• Fully Configurable: Onboard jumpers and DIP switches enable customization of I/O ranges, operating modes, and system addressing without hardware modifications.
• Comprehensive Protection Circuits: Integrated overvoltage, overcurrent, and short-circuit protection safeguard the board and connected equipment from electrical faults.
• Seamless System Integration: VMEbus interface enables direct communication with Mark V system controllers, ensuring real-time data exchange and synchronization.
• Long Operational Lifespan: Designed for continuous 24/7 operation with a mechanical life of over 10 million cycles and electrical life exceeding 1 million operations.

Applications

• Gas Turbine Control Systems: Core power and feedback processing unit for GE Speedtronic Mark V gas turbine controllers in power generation plants.
• Steam Turbine Control: Provides stable control power and motor field feedback for steam turbine-driven generators in utility and industrial power facilities.
• Large DC Drive Systems: Integrates with GE EX2000, DC2000, and CB2000 DC drive systems for metal rolling mills, paper machines, and mine hoists.
• Process Industry Motor Control: Used in refining, petrochemical, and chemical plants for controlling large DC motors in pumps, compressors, and extruders.
• Power Generation Auxiliaries: Controls critical auxiliary motors (e.g., boiler feed pumps, induced draft fans) in thermal power stations.
• Legacy System Retrofits: Direct replacement for older GE DC feedback boards in existing Mark V systems, extending the life of legacy turbine and drive control infrastructure.