I/O modules

The GE IS200TSVCH1A IS200TSVCH1AJE Servo I/O PCB manages valve position feedback and hydraulic actuator control. This board serves as the front-end interface for electro-hydraulic converter systems. You will find it exclusively within GE Mark VI turbine control panels. It handles both sensor inputs and servo outputs simultaneously.

Core Technical Specifications

The GE IS200TSVCH1A IS200TSVCH1AJE Servo I/O PCB measures 30.5 cm in width and 22.0 cm in height. Its board thickness equals 2.0 cm with component clearance. The total assembly weighs approximately 0.7 kilograms. Eight LVDT input channels accept ±10 VDC differential signals. Four servo output channels deliver ±20 mA current loops for torque motors.

Connectors and Field Interfaces

The GE IS200TSVCH1A IS200TSVCH1AJE provides three 37-pin D-sub connectors for all field wiring. Connector J1 handles the eight LVDT excitation and feedback pairs.Each pin uses gold-plated contacts for corrosion resistance.

Energy Storage and Signal Processing

This servo I/O PCB does not contain electrolytic capacitors on analog signal paths. Therefore, it stores negligible residual energy after power removal. The board includes programmable low-pass filters for each LVDT channel. These filters eliminate mechanical vibration noise from position readings. Moreover, the GE IS200TSVCH1A IS200TSVCH1AJE integrates 16-bit analog-to-digital converters for precise measurements. You can configure all settings through the Mark VI software interface. This board requires proper shielding on all field cables.

​

Details