GE IS220PSVOH1A servo control pack

GE IS220PSVOH1A is a “Servo Valve Output / Position Loop” I/O module—often called a “servo control pack”—developed by General Electric for the Mark VIe control system.

It handles the following key tasks in gas/steam-turbine control, process control and general automation:

1.High-precision servo-drive output

Configurable ±10 V or 0–20 mA analog output to drive servo valves, actuators or variable-speed motors

16-bit resolution, typical accuracy ±0.1 %, directly controls fuel valves, IGVs, steam valves, etc.

2.Dual-channel position-loop control

One module closes two independent servo/position loops (LVDT/RVDT feedback); supports position, speed or force modes

Pairs with the TSVO terminal board for 8 LVDT inputs, 2 pulse-rate inputs and 2 servo outputs

3.Network & system interface

Two independent 10/100 M Ethernet ports (ENet1/ENet2) on the front; exchanges data with the controller over Mark VIe IONet

Supports TMR (Triple Modular Redundancy) and hot-swap; meets SIL / turbine-safety requirements

4.Diagnostics & maintenance

On-board temperature sensor and self-diagnostics: over-temp, wire-break, excessive deviation, etc.

Re-configuration via ToolboxST—automatic or manual; no re-download of control strategy after module swap

5.Environmental & mechanical specs (may vary by revision)

Operating temp.: –30 °C to +65 °C (some –40 °C to +85 °C)

Power: 24 VDC from backplane; power draw ≈ 12-25 W

Size ≈ 8.3 cm × 4.2 cm × 12.1 cm; weight 0.5-1.5 kg

IP20; rail-mounted in the system rack

6.Typical applications

Servo positioning of gas/steam-turbine fuel valves, IGVs, extraction valves

Speed or position control for large compressors, pump stations, fans

Any industrial automation that needs redundancy, fast response (<10 ms) and high accuracy (0.01 %)

7.Our Advantages
Fast Quotation & Quick Delivery – Get the parts you need without delay.
Comprehensive Support – We provide professional assistance both before and after sales.
Dedicated Team – Our staff work diligently to respond to your inquiries promptly.
Guaranteed Warranty – All products come with assured quality protection.
Flexible Returns – Goods return and replacement are accepted under warranty terms.
Integrity First – We keep our promises and deliver what we commit.

In short: IS220PSVOH1A is the Mark VIe module dedicated to high-accuracy, dual-loop servo-valve / actuator control, integrating analog output, position feedback, network communication and diagnostics—an essential servo interface for gas & steam turbines and other high-end automation.

What happens next?