Description
Product Overview
The GE IS200TSVCH1ABA is a servo input/output terminal board used in turbine-control applications where electrohydraulic actuators position steam or fuel valves. The board provides the field interface for servo-valve output circuits and LVDT feedback signals, allowing the associated control hardware to command valve movement and monitor actual position. This feedback is important to turbine control because discrepancies between the demanded position and measured position can affect operating stability and trigger diagnostic alarms.
The TSVC board is not a standalone servo controller. It works with compatible control hardware, identified in available product documentation as the PSVO I/O pack and WSVO servo driver. Published descriptions identify two servo-control channels, LVDT position-feedback connections, and two pulse-rate inputs. The exact signal ranges, coil-current settings, and supported redundancy arrangement must be checked against the installed configuration. A board that looks similar or shares the TSVC designation should not be substituted without confirming its full part number and revision.
For maintenance and procurement teams, the main risk is configuration mismatch rather than physical installation alone. Before ordering, compare the complete IS200TSVCH1ABA label, connector arrangement, jumper settings, and associated I/O hardware against the installed unit. For a used or refurbished board, request evidence of functional testing and inspect the terminal blocks, connectors, PCB condition, and signs of overheating or corrosion. After replacement, perform the site-approved checks for servo output, LVDT feedback, pulse inputs where used, and protection-related trip wiring before returning the turbine to service.
Product Introduction
The GE IS200TSVCH1ABA TSVC board provides the field termination and signal interface required for compatible turbine servo-control applications. It links servo-valve circuits and position-feedback sensors to the associated control hardware, supporting valve actuation and feedback monitoring.
When sourcing this component, confirm that the offered board matches the installed hardware revision and system architecture. Verify all field connections and configuration settings before commissioning; do not assume that a different TSVC revision or a VSVO-associated board is an interchangeable substitute.
Key Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | General Electric (GE) |
| Model | IS200TSVCH1ABA |
| Functional acronym | TSVC |
| Product type | Servo input/output terminal board |
| System association | Mark VI / Mark VIe-compatible turbine-control configurations |
| Primary function | Servo-valve interface and LVDT position-feedback termination |
| Servo-control channels | Two documented channels |
| LVDT inputs | Up to eight windings, depending on configuration |
| Pulse-rate inputs | Two |
| Power input | 28 V DC is documented for the TSVC family; verify the exact assembly and supply arrangement |
| Associated control hardware | PSVO I/O pack and WSVO servo driver |
| VSVO compatibility | Do not assume compatibility; available part-specific listing explicitly warns against it |
| Servo current range | Configuration-dependent; verify jumper settings and actuator requirements |
| Installation | Terminal-board mounting; confirm the installed rack or cabinet arrangement |
| Operating temperature | Not independently verified for the exact suffix |
| Protection rating | Not independently verified |
| Condition | Confirm actual condition with supplier |
The channel counts and power details are based on published TSVC-family descriptions. Confirm the exact suffix and applicable GE manual before using these values for wiring, acceptance testing, or replacement approval.
IS200TSVCH1ABA
Related Products
GE IS200TSVCH1A — TSVC Terminal Board
Closely related TSVC model. Compare the full suffix, hardware revision, and assembly documentation before considering it as a replacement.
GE IS210WSVOH1A — WSVO Servo Driver
Associated servo-driver hardware in documented TSVC configurations. Verify the exact system version and connector arrangement.
GE IS220PSVOH1B — PSVO I/O Pack
A compatible I/O-pack designation documented with TSVC-family hardware. Confirm the full terminal-board and pack combination.
GE IS200VSVOH1B — VSVO Servo Control Board
A related servo-control product family, but not a confirmed compatible substitute for the TSVC board. Check the control architecture and manual before considering any substitution.
GE IS200TVIBH1B — LVDT Interface Hardware
Related to valve-position feedback applications in turbine control. Its function and system compatibility differ from those of the TSVC terminal board; confirm the exact model before procurement.
Frequently Asked Questions
Q1: What does the GE IS200TSVCH1ABA do?
It provides terminal interfaces for servo-valve drive circuits, LVDT position feedback, and pulse-rate signals in compatible turbine-control systems.
Q2: Is it a standalone controller?
No. It is a terminal interface board used with compatible servo-control hardware. The associated I/O pack or servo driver performs the control functions.
Q3: How many servo channels does it support?
Published descriptions identify two servo channels. Confirm the actual hardware configuration and associated controller documentation before wiring or testing.
Q4: Can the IS200TSVCH1ABA be used with a VSVO processor?
Do not assume so. The available part-specific listing identifies the PSVO I/O pack and WSVO servo driver as compatible hardware and explicitly warns against VSVO compatibility. Confirm the intended system architecture before ordering.
Q5: What should be checked if valve-position feedback is unstable?
Inspect field wiring, terminal tightness, LVDT excitation and feedback connections, shielding, and the associated controller diagnostics. Follow the approved troubleshooting procedure and isolate equipment as required; unstable feedback does not by itself prove that the terminal board has failed.
Q6: Is the board hot-swappable?
Hot-swap support has not been verified for this exact assembly. Follow the applicable GE manual and site isolation procedures. Do not remove or replace the board under power unless the documentation explicitly permits it.
Q7: What information should be obtained before buying a replacement?
Request a clear photograph of the full part number and revision, confirmation of the associated PSVO/WSVO hardware, terminal and connector details, jumper configuration, actual condition, and a functional test report. For turbine-control equipment, verify the complete configuration before approving the replacement.
