IS220PSVOH1A, REV F – Servo Control I/O Module

The IS220PSVOH1A, REV F is a Servo Control I/O Module engineered for GE Mark VIe turbine control systems, offering high-precision control for electro-hydraulic actuators in steam and gas turbines. Designed for simplex applications, it integrates both actuator command and position feedback into one powerful, compact module.

Supporting output ranges of ±50 mA, ±100 mA, and ±200 mA, this I/O module can manage two servo loops simultaneously, delivering smooth and responsive control of critical turbine components like steam control valves, gas fuel actuators, and IGVs (Inlet Guide Vanes). It ensures accuracy in positioning by providing real-time feedback signals for each loop.

The IS220PSVOH1A, REV F is known for its high-speed closed-loop processing, ensuring stable operation even during demanding load conditions. With its Ethernet-based interface, it communicates seamlessly with the Mark VIe controller, offering reliable and low-latency data exchange.

Built-in diagnostics, fault detection, and auto-calibration features enhance maintainability and reduce overall downtime. The module is rugged and suitable for industrial environments, tested for durability in harsh conditions.

Its compact, plug-and-play design ensures easy field installation and compatibility with existing GE terminal boards. Whether used in single-loop or dual-loop control systems, this module plays a crucial role in maintaining efficiency, performance, and safety in turbine automation.

The IS220PSVOH1A, REV F is a trusted choice for power plant engineers seeking reliable, high-performance servo control in GE Mark VIe environments.

Key Features:

• Designed for GE Mark VIe control systems

• Provides ±50 mA, ±100 mA, and ±200 mA current loop outputs

• Dual-loop support for controlling two actuators

• Delivers accurate position control with feedback

• Fast, closed-loop response for critical turbine functions

• Integrated diagnostics and self-monitoring

• Simplex operation for compact system configurations

• Ethernet communication for controller interfacing

• Compatible with standard GE terminal boards

• Industrial-grade, field-tested reliability

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