1. Basic Information

• Model: IS220PSVOH1B (336A5026ADP18)

• Brand: GE (General Electric, now part of Emerson Automation Solutions)

• Product Type: Servo Valve Control & LVDT Feedback Interface Board

• System Compatibility: GE Speedtronic Mark VIe Gas & Steam Turbine Control Systems

• Core Purpose: For electro-hydraulic servo valve driving and valve position feedback signal acquisition to realize turbine speed regulation and safety control

2. Key Specifications

• Channel Configuration: Servo valve drive outputs, multi-channel LVDT displacement sensor inputs

• Signal Type: Supports standard LVDT valve position feedback and bidirectional servo current drive

• Electrical Features: Galvanic isolation, anti-interference, overvoltage and surge protection

• Operating Temperature: -30℃ ~ +65℃

• Mounting: Plug-in type for standard Mark VIe I/O racks

3. Core Functions

• Drives electro-hydraulic servo valves for precise control of turbine stop and control valves

• Collects LVDT linear displacement sensor signals to feedback actual valve position in real time

• Provides signal conditioning and noise filtering to ensure control accuracy and stability

• Supports system redundancy and fault diagnosis to ensure safe unit operation

4. Typical Applications