Configured for turbine‑specific servo‑valve interfacing within Mark VI control networks, the GE IS200TSVCH2A (IS200TSVCH2A terminal board) provides direct electrical execution of two coil‑drive outputs and two pulse‑rate feedback inputs.
Hardware Specifications
Parameter
Specification
Model
IS200TSVCH2A
Brand
GE
Origin
USA
Weight
2.25 lb
Dimensions
Not specified
Operating Temp
Not specified
Power Consumption
Not specified
Channels
2 coil outputs, 2 pulse‑rate inputs
Terminal Type
Barrier‑type terminal blocks (removable)
Connectors
Three D‑shell connectors, multiple vertical plug connectors
Transformers
Four isolation/drive transformers
Technology
Surface‑mount
Series
Mark VI
Product Type
Servo terminal board
Backplane Bus Communication Velocity Behavior
As part of GE’s Mark VI turbine‑control architecture, the TSVCH2A board routes servo‑valve coil commands and pulse‑rate feedback signals through deterministic backplane cycles. The board’s trace geometry maintains stable propagation delay across both channels, ensuring synchronous servo‑valve actuation. Transformer‑based isolation reduces cross‑talk between coil‑drive circuits and pulse‑rate feedback paths, preserving timing integrity for heavy‑duty, aviation‑gas, and steam turbine applications.
Frequently Asked Questions
Q: Can the IS200TSVCH2A be replaced while the cabinet is energized? A: No. Replacement must occur with the control system de‑energized to avoid unintended servo‑valve actuation.
Q: Does the board include jumper configuration? A: Yes. Multiple jumper switches allow channel‑specific configuration, depending on actuator and sensor requirements.
Q: How does the board interface with auxiliary hardware? A: It is designed for use with the PSVOH1B battery pack and connects directly to field actuators and pulse‑rate sensors.
Field Installation Guidelines
Maintain proper polarity and shielding for pulse‑rate sensor wiring to reduce noise pickup.
Torque barrier‑type terminal screws evenly to prevent intermittent coil‑drive behavior.
Ensure D‑shell connectors are fully seated before energizing the system.
Route coil‑drive wiring separately from pulse‑rate feedback conductors to avoid magnetic coupling.
Inspect jumper settings prior to commissioning to ensure correct actuator configuration.
Verify transformer and connector alignment when installing or replacing the board.
