GE IS220PSVOH1B Mark Vie Servo I/o Module

Series & Revision: Mark VIe / VIeS, Revision B

Input Power: 28 V DC nominal

Communication: Dual 10/100 Mbps Ethernet ports (RJ-45)

Control Function: Interfaces with TSVO terminal board and controls up to two servo loops via WSVO driver module

Servo Output Current: 10–120 mA DC (selectable)

Onboard Hardware: Processor board with flash memory, RAM, temperature sensor

Indicators: LEDs for ENet1, ENet2, Power, Attention, ENA1, ENA2

Protection: Conformal-coated PCB for harsh industrial environments

Redundant Ethernet Ports: For high-reliability network communication

Auto-Configuration: Supports simplex, dual, and triple modular redundancy (TMR) with plug-and-play replacement

Integrated Diagnostics: Onboard temperature monitoring and LED status indicators for fault detection

Hot-Swappable: Enables live module replacement without shutting down the system

System Compatibility: Fully compatible with GE’s Mark VIe and VIeS turbine control platforms

GECOL Power Plant Upgrade in Libya:
General Electricity Company of Libya modernized its GT13E1 gas turbines with GE Vernova Mark VIe control systems, with IS220PSVOH1B modules restoring 660 MW of capacity and improving reliability.

Marafiq Desalination Plant in Bahrain:
The plant, equipped with the Mark VIe integrated control system, has operated for 15+ years with no unplanned downtime, with servo interface modules providing critical valve position feedback and precision control.

Edwardsport IGCC Project in the United States:
At the Duke Energy Edwardsport Integrated Gasification Combined Cycle Power Plant, the Mark VIe system manages more than 10,000 I/Os, with modules such as the IS220PSVOH1B widely used in the servo control of gas-steam turbines