GE IS220PSVOH1B Mark VIe Servo Interface I/O Pack in stock
GE IS220PSVOH1B is a high reliability servo interface I/O pack for GE Speedtronic Mark VIe turbine control system. It delivers isolated servo drive signals to electro-hydraulic servo valves and collects LVDT position feedback for closed-loop valve control.

This module adopts dual Ethernet network design and supports redundant communication. It is widely used as replacement spare parts for gas turbine and steam turbine control cabinets in power plants, oil & gas and combined cycle power generation industries.
Main Specifications
| Brand & Model | Brand: GE; Model: IS220PSVOH1B; Series: Mark VIe Speedtronic Turbine Control |
| Type | Servo Interface I/O Pack |
| Input Channels | 8 × LVDT inputs, 2 × pulse rate inputs |
| Communication | Dual Ethernet port for redundant network connection |
| Operating Temperature | -40℃ ~ +70℃; 5%~95% non-condensing humidity |
| Mounting | Slot-mounted inside Mark VIe system chassis |
Core Functions
| Servo Valve Drive | Output current signals to control electro-hydraulic servo valves for turbine fuel and steam regulation. |
| Position Feedback | Receive LVDT sensor signals to collect real-time valve position feedback for closed-loop control. |
| Redundant Communication | Dual Ethernet network links to guarantee reliable data transmission with Mark VIe main controller. |
| Loop Diagnostics | Real-time monitoring of servo coil status and signal faults with automatic alarm output. |
| High Speed Control | Fast response for gas & steam turbine load adjustment and grid synchronization control. |
| Modular Maintenance | Hot-slot capable pack design for quick replacement during turbine system overhaul. |
Application Scenarios
| Mark VIe Turbine Control Cabinet | GE Speedtronic Mark VIe gas turbine and steam turbine control systems. |
| Combined Cycle Power Plant | Servo valve control for fuel valves, inlet guide vanes and steam control valves. |
| Oil & Gas Industry | Turbine generator control for offshore and onshore power generation units. |
| On-site Overhaul | Faulty I/O pack replacement and maintenance of existing Mark VIe turbine systems. |
| Power Plant Retrofit | Turbine control system upgrade and spare parts stocking projects. |
| Critical Automation | Mission-critical industrial control requiring high reliability and redundancy. |
FAQ
| Question | Answer |
| What is GE IS220PSVOH1B? | It is servo interface I/O pack for GE Mark VIe Speedtronic turbine control system. |
| What is its main purpose? | It drives hydraulic servo valves and reads LVDT position feedback for turbine closed-loop control. |
| What communication does it support? | It uses dual Ethernet ports to realize redundant communication with Mark VIe main controller. |