GE Mark VI IS200VSVOH1BDC Turbine Control Module

Description

The IS200VSVOH1BDC is a Servo Control Card designed by GE Industrial Systems, specifically for use in servo valve interface applications or with pulse rate (speed) inputs. This card plays a crucial role in the control systems of steam or gas turbines, ensuring precise operation and control.

Technical Specifications

• Model Number: IS200VSVOH1BDC
• Revision: BDC
• Manufacturer: GE Industrial Systems, General Electric Company US
• Model Type: Servo Control Card
• Application Specific I/O: Servo Valve Interface
• Coil Servo Quantity: 2 or 3; 3 for TMR Applications
• Frequency Range for Pulse Rate Inputs: 2-14 kHz
• Functional Acronym/Abbreviation: VSVO
• LEDs: 3 (Run, Fail, Status)
• Prime Mover Type: Steam or Gas Turbines
• Speed Sensor: Active or Passive
• Sufficient Sensitivity Range: 2 Hz

Key Features

• Servo Valve Interface I/O:

  • The IS200VSVOH1BDC interfaces with servo valve I/Os, providing selectable current drivers and feedback from LVDRs, LVDTs, and pulse-rate inputs from flow divider feedbacks.

• Pulse Rate Inputs:

  • When used with pulse rate inputs, the card operates within a frequency range of 2 to 14 kHz, ideal for flow divider feedback in servo loops.
  • The VSVO card interfaces with both active and passive speed sensors, and can support an additional two passive speed sensors when used with a Backup Protection Module.

• Coil Servo Configuration:

  • The card supports either 2 or 3 coil servos, with 3-coil configurations primarily used in TMR (Triple Modular Redundancy) applications, providing enhanced redundancy and reliability.

• Servo Channels:

  • Typically, the IS200VSVOH1BDC utilizes four servo channels, each capable of supporting up to three LVDT/LVDR feedback sensors.
  • Feedback selection can be configured in software, offering median select, high select, or low select options.
  • Servo current outputs on this model are bi-directional, ensuring versatile and precise control.

• LVDT/LVDR Sensors:

  • A minimum of two LVDT/LVDR sensors is recommended for TMR applications, as each sensor requires an AC excitation source.