Description

The IS200VSVOH1B is a high-performance Servo Control Board designed for the General Electric Mark VI Speedtronic control system. This module functions as the primary interface for regulating electro-hydraulic servo valves in gas and steam turbine applications. It is engineered to execute precise position control loops for fuel valves and inlet guide vanes (IGV), ensuring optimal combustion stability and mechanical protection in power generation and heavy industrial environments.

Features

• High-speed deterministic loop processing for real-time turbine control.
• Integrated support for LVDT/LVRT feedback interfaces.
• Supports both Simplex and Triple Modular Redundant (TMR) configurations for high-availability applications.
• Advanced self-diagnostics for detecting open circuits, short circuits, and out-of-range LVDT conditions.
• Direct interface with the Mark VI VME controller for rapid fault reporting and system integration.

Applications

• Gas and steam turbine fuel control systems.
• Inlet Guide Vane (IGV) positioning.
• Electro-hydraulic valve regulation.
• Power generation and heavy industrial propulsion control.

Technical Specifications

Installation Guidelines

• Ensure the control system is powered down before inserting or removing the board from the VME rack.
• Handle the module using proper ESD (Electrostatic Discharge) protection protocols to prevent damage to sensitive internal components.
• Ensure the board is fully seated in the VME backplane to maintain secure electrical connections.
• Verify that all LVDT feedback wiring is properly shielded and grounded to minimize EMI interference in the turbine control environment.
• Perform system-level diagnostics after installation to verify loop calibration and feedback accuracy.

FAQ

What is the primary function of the IS200VSVOH1B?

The IS200VSVOH1B is a servo control board used in Mark VI systems to regulate electro-hydraulic servo valves, primarily for fuel control and IGV positioning in turbines.

Does this board support TMR configurations?

Yes, the IS200VSVOH1B is designed to support both Simplex and Triple Modular Redundant (TMR) configurations to ensure operational continuity.

What type of feedback does this module process?

This module is designed to process feedback from Linear Variable Differential Transformers (LVDT) and LVRT sensors to provide precise position control.