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IS230TNSVH3A GE Module Parts Servo Valve Terminal Board
| Parameter | Specification |
|---|---|
| Manufacturer | General Electric (GE) |
| Model | IS230TNSVH3A |
| Functional Acronym | TNSV |
| Product Type | Servo Valve Terminal Board |
| Product Series | Speedtronic Mark VIe |
| Associated Hardware | Compatible Mark VIe servo I/O pack |
| Main Function | Servo valve signal interfacing |
| Output Function | Electro-hydraulic servo valve control |
| Feedback Input | LVDT position feedback |
| Signal Type | Analog servo control and feedback signals |
| Communication | Through associated I/O pack via IONet |
| Typical Actuators | Hydraulic servo valves |
| Installation | Industrial turbine control cabinet |
| Configuration Software | ToolboxST / ControlST |
| Hardware Revision | H3A |
Provides the electrical interface for controlling electro-hydraulic servo valves used to regulate turbine fuel and steam flow.
Interfaces with Linear Variable Differential Transformer (LVDT) sensors to provide valve-position feedback to the control system.
Supports closed-loop servo control by connecting valve command signals with actual position feedback.
Supports precise positioning of fuel control valves to maintain stable turbine operation.
Provides an interface for steam turbine governing valve actuators.
Transfers servo command and feedback signals between field devices and the associated Mark VIe I/O processor.
- Verify the IS230TNSVH3A part number and hardware revision.
- Confirm compatibility with the installed Mark VIe servo I/O pack.
- Install the terminal board according to the cabinet layout.
- Connect servo valve command wiring.
- Connect LVDT position feedback signals.
- Check grounding, shielding, and power connections.
- Configure the servo channel in ToolboxST.
- Perform valve stroke testing and feedback calibration.
| Problem | Possible Cause | Recommended Solution |
|---|---|---|
| Servo valve does not respond | Incorrect output wiring | Check servo connections |
| Valve position feedback error | LVDT wiring failure | Inspect feedback wiring |
| Unstable valve position | Incorrect LVDT calibration | Verify zero and span |
| Servo output alarm | I/O pack fault | Check processor diagnostics |
| Valve oscillation | Incorrect servo tuning | Review control parameters |
| Communication failure | IONet connection issue | Inspect network connections |
The GE IS230TNSVH3A is a servo valve terminal board used in Mark VIe turbine control applications.
It provides the field interface for servo valve control signals and LVDT position feedback.
TNSV identifies the servo valve terminal board functional family.
Yes. It provides an interface for LVDT feedback used in turbine valve-position monitoring.
It is used in gas turbines, steam turbines, hydraulic servo systems, and industrial turbine valve-control applications.
GE Servo Valve Terminal Board
,IS230TNSVH3A GE Module Parts
,GE Terminal Board Servo Valve
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