GE IS200VSVOH1B

Product Brief The GE IS200VSVOH1B is a VME-based servo control board designed for the Mark VI Speedtronic turbine control system. This board controls the operation of electro-hydraulic servo valves that regulate steam and fuel valves in gas and steam turbine systems. The VSVO board provides precise valve positioning through LVDT feedback, pulse rate flow inputs, and configurable servo coil outputs. It supports both simplex and triple modular redundancy (TMR) configurations, making it suitable for critical turbine control applications requiring the highest levels of reliability.

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Description

GE IS200VSVOH1B

Technical Specifications

  • Part Number: IS200VSVOH1B
  • Manufacturer: General Electric
  • Series: Mark VI Speedtronic
  • Product Type: VME Servo Control Board / Servo Valve Driver
  • Servo Output Channels: Up to 2 electro-hydraulic servo valve coils
  • LVDT Feedback Inputs: Up to 4 LVDT or RVDT position sensors
  • Output Current Ranges: Bi-directional outputs up to +/- 10mA or +/- 40mA
  • LVDT Excitation Frequency: 3.2 kHz
  • Pulse Rate Inputs: 2-14 kHz frequency range for flow divider feedback
  • Speed Sensor Compatibility: Active and passive speed sensors
  • Coil Servo Configuration: 2 or 3 coil servos (3-coil for TMR applications)
  • Operating Temperature: 0 to 60 degrees Celsius (inside standard rack)
  • Storage Temperature: -40 to 85 degrees Celsius
  • Dimensions: 2.1 cm x 18.8 cm x 26.2 cm
  • Weight: 0.32 kg
  • Hardware Revision: B
  • Group: H1
  • Coating: Conformal coating

Key Features

  • Controls up to four electro-hydraulic servo valves for fuel/steam valve regulation
  • LVDT excitation and position feedback for precise valve control
  • Pulse rate flow input support for flow divider feedback
  • Compatible with active and passive speed sensors
  • Supports 2-coil or 3-coil servo configurations
  • 3-coil configuration ideal for TMR (Triple Modular Redundancy) applications
  • Three LED indicators: RUN (green), FAIL (red), STATUS (orange for alarms)
  • Conformal coating for extended lifespan in harsh conditions
  • Six connectors: two backplanes (P1/P2) and four wire connectors (P3-P6)
  • Four relays (K1-K4) with printed charts on top surfaces
  • Over 70 integrated circuits for high performance

Application Scenarios Gas turbine fuel valve control, steam turbine admission valve control, combined cycle power plants, industrial turbine drives, hydroelectric turbine governors, compressor anti-surge control, generator valve regulation

Performance Parameters

  • Servo Valve Control: Up to 4 EHSV coils
  • LVDT Excitation: 3.2 kHz
  • Output Current: +/- 10mA or +/- 40mA bi-directional
  • Pulse Rate Input Range: 2-14 kHz
  • Speed Sensor Sensitivity: 2 Hz minimum
  • Operating Temperature: 0°C to 60°C
  • LED Indicators: 3 (RUN, FAIL, STATUS)