General Electric IS200VSVOH1B VME Communication Interface Card

Overview

The General Electric IS200VSVOH1B VME Communication Interface Card supports Mark VIe turbine control systems with precise valve‑control capability and stable communication performance. This module manages servo valve regulation through LVDT feedback and pulse‑rate inputs, ensuring accurate fuel and steam modulation in demanding turbine environments.

Functional Design

The GE IS200VSVOH1B uses a single‑slot VME layout that improves cabinet space efficiency in DCS installations. Its front panel includes a J5 connector and three diagnostic LEDs that display RUN, FAIL, and STATUS conditions. The PCB integrates six connectors, four relays, and more than seventy IC components, all protected by conformal coating for long‑term durability in high‑vibration turbine housings.

The IS200VSVOH1B supports LVDT excitation and precise valve positioning for both simplex and TMR architectures. Its pulse‑rate inputs and relay‑driven outputs synchronize with TSVO and DSVO terminal boards to maintain fault‑tolerant operation. The board’s B‑revision hardware improves performance in modern Mark VIe systems while maintaining backward compatibility with legacy Mark VI installations.

Technical Specifications

Key Parameters

Additional Technical Notes

• The IS200VSVOH1B supports precise valve modulation for gas and steam turbines.

• The board includes ten inductor beads and multiple test points for service diagnostics.

• The conformal‑coated PCB improves resistance to moisture, dust, and vibration.

• The design integrates smoothly with Ethernet‑enabled Mark VIe architectures.

Applications and Compatibility

The General Electric IS200VSVOH1B supports turbine control systems in power generation facilities that require accurate servo valve management. It integrates with TSVO and DSVO terminal boards to distribute valve control across redundant channels. Users deploy the module in gas turbines, steam turbines, and auxiliary control panels that demand high‑precision operation.