GE DS200DCFBG1BLC DC Feedback Power Supply Board

Technical Specifications

  • Input Voltage: 38–115 VAC, 47–63 Hz (supports dual redundant inputs for enhanced reliability).
  • Output Voltages:
    • +5 V DC (4 A)
    • ±15 V DC (0.8 A each)
    • ±24 V DC (3 A/1 A)
  • VCO Output: 0–500 kHz (nominal 250 kHz), isolated at 2.5 kV logic-to-power and 500 V channel-to-chassis.
  • Feedback Input: Electromotive and field shunt resistors (50 mV–250 mV range).
Category:
Description
  • Protection: Three fuses (FU1: 0.5 A for fan; FU2/FU3: 7 A for ±15 V rails) with LED indicators for fuse status and fan failure.
  • Operating Temperature: -30°C to +70°C (extended range for harsh environments).
  • Certifications: CE, UL, IEC 61508 (SIL 2), EN 50121-3-2, and EN 61000-6-2 for industrial EMC compliance.

Functional Characteristics

  • Stable Power Conversion: Converts raw AC input into multiple DC outputs with ±0.5% precision, ensuring consistent operation of control boards and sensors.
  • Feedback Signal Processing: Integrates a voltage-controlled oscillator (VCO) to digitize analog feedback signals, isolating high-voltage transients from delicate logic circuits while maintaining 0.5% measurement accuracy.
  • Redundant Power Architecture: Supports dual 24 VDC inputs with automatic failover (≤5 ms switching time) to eliminate downtime in critical applications.
  • Comprehensive Protection: Overcurrent, overvoltage, and short-circuit protections safeguard connected equipment, while fused circuits prevent damage from surges.
  • Modular Design: 12 jumpers and 7 DIP switches allow customization of voltage rails and signal scaling, reducing the need for external components.
  • Diagnostic Capabilities: Front-facing LEDs and neon indicators provide real-time status updates on power quality, fan health, and fuse integrity.

Application Scenarios

  • Power Generation: Used in gas and steam turbine control systems to regulate electromotive and field excitation currents, ensuring stable power output.
  • Industrial Automation: Powers motor drives, conveyors, and robotic systems in manufacturing plants, with ±24 V DC outputs driving contactors and indicators directly.
  • Energy Management: Monitors and controls grid equipment in substations, including transformers and circuit breakers, via precise voltage and current feedback.
  • Process Control: Integrates with DCS/PLC systems in chemical, petrochemical, and metallurgical plants to manage reactor temperatures, pressure valves, and flow rates.
  • Marine Propulsion: Deployed in shipboard turbine drives to maintain thrust control in extreme temperatures (-25°C startup capability) and corrosive environments.

Key Advantages

  • High Reliability: MTBF exceeding 2,200,000 hours and IP20-rated enclosure ensure long-term operation in dusty or humid conditions.
  • Cost Efficiency: Reduces spare part inventory by cross-compatibly supporting GE DC2000, AC2000, CB2000, ME2000, and FC2000 drives.
  • Ease of Maintenance: Hot-swappable design and keyed connectors simplify replacement, while silk-screened jumper defaults minimize configuration errors.
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