Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | General Electric (GE) |
| Model | IS200TSVCH2AED |
| MRP Number | MRP246517 |
| Base Board Designation | IS200TSVCH2A |
| Functional Designation | TSVC |
| Product Type | Servo Terminal Board |
| System Family | GE Mark VI / Mark VIe |
| Primary Associated Module | IS220PSVOH1B Servo Control Module |
| Servo Driver Association | IS210WSVOH1A |
| Interface Role | Servo-control field termination and signal interface |
| Board Revision/Suffix | H2AED |
| Mounting | Turbine-control cabinet / terminal-board assembly |
GE documentation is particularly useful here: it explicitly states that the IS220PSVOH1B Mark VIe Servo Control Module is intended to work with the IS200TSVCH2A accessory terminal board and IS210WSVOH1A servo driver board.
A supplier listing describes the specific H2AED / MRP246517 version as an STAI-style analog terminal board with 10 analog inputs and 2 analog outputs. That description conflicts with the GE documentation associating the TSVC board with servo control, so I would not use those STAI channel specifications for engineering approval without a revision-specific GE drawing.
IS200TSVCH2AED
Application Scenarios & Pain Points
A servo terminal board sits right at the boundary between control electronics and the field device. That makes wiring integrity critical. During turbine maintenance, a board that is electrically correct but wired to the wrong feedback or command terminals can produce a very convincing—and potentially dangerous—false diagnosis.
Typical Applications
- Turbine Servo Control: The TSVC board is used as the terminal interface associated with GE servo-control equipment. GE specifically identifies IS200TSVCH2A as an accessory board for the IS220PSVO servo module.
- Valve/Actuator Control: Servo-control hardware is used where the turbine control system must command and monitor hydraulic or electro-hydraulic actuators. The terminal board provides the physical signal interface between the control assembly and field wiring.
- Mark VIe Control Cabinets: GE’s certification documentation explicitly includes IS200TSVCH2A in the Mark VIe Servo Control Module assembly.
- Legacy Mark VI Maintenance: The IS200TSVCH2A family is also documented as a Mark VI turbine-control terminal board, making exact revision identification important when maintaining older installations.
Field Case:
A turbine maintenance team replacing a servo terminal board should photograph every wire before disturbing the terminals. Then verify command, feedback, excitation, shield, and common connections against the cabinet drawing. One swapped feedback pair can turn a perfectly good replacement board into what looks like a bad servo controller.
Related Products
- GE IS220PSVOH1B — Mark VIe Servo Control Module. This is the principal electronic module associated with the TSVC terminal board. It performs servo-control processing; IS200TSVCH2AED provides the terminal/interface side. GE explicitly documents this pairing.
- GE IS210WSVOH1A — Servo driver board associated with the PSVO architecture. GE identifies it alongside IS200TSVCH2A and IS220PSVOH1B. It performs a different function from the terminal board.
- GE IS400BSVOH1A — Internal acquisition board used in certain RoHS-compliant IS220PSVOH1B constructions. This is internal PSVO hardware rather than a substitute for the TSVC terminal board.
- GE IS410WSVOH1A — RoHS-compliant servo driver board associated with the newer construction of the PSVO servo-control module. It should be matched to the specific PSVO hardware generation.
- GE IS200SPROH1A — Terminal board used with the Mark VIe backup turbine-protection I/O module. It is a related Mark VIe terminal board but serves a protection function, not servo control.
- GE IS200TRPAH1A — Terminal board associated with the Mark VIe PTUR turbine-specific primary-trip I/O module. It belongs to the turbine-protection side of the system and is not a TSVC replacement.
- GE IS200TRTDH2D — RTD terminal board family used with Mark VIe RTD input modules. Its signal type is temperature measurement rather than servo control.
- GE IS200STCIH1A / IS200STCIH2A — Mark VIe discrete-input terminal boards. They provide discrete signal termination and are functionally separate from the TSVC servo interface.
