1. Basic Information

• Model: IS200TSVCH1A

• Brand: GE (General Electric, now Baker Hughes/Emerson)

• Type: TSVC (Turbine Stop Valve Control / Turbine Shaft Vibration & Clearance) Servo I/O Terminal Board / Shaft Vibration & Displacement Input Module

• Compatible Systems: GE Speedtronic Mark VI / Mark VIe gas/steam turbine control systems; supports simplex, dual-redundant, and TMR (Triple Modular Redundant) architectures

• Core Purpose: Servo valve control, LVDT position feedback acquisition, shaft vibration/displacement monitoring—critical I/O interface for turbine safe shutdown and speed regulation

2. Core Functions

(1) Servo Control & Valve Position Feedback

• Provides 2 bi‑directional servo current outputs to drive 10/20/40/80/120mA three‑coil electro‑hydraulic servo valves, controlling turbine stop/control valves and fuel valve position.

• Supports 8 LVDT (Linear Variable Differential Transformer) position feedback inputs, with 4 isolated / 2 non‑isolated LVDT excitation sources for high‑precision closed‑loop valve control.

• 2 pulse‑rate inputs for fuel flow monitoring, speed/keyphasor signal acquisition.

(2) Shaft Monitoring (TSVC Vibration Version Compatible)

• 8 independent input channels, supporting ‑24VDC biased eddy‑current displacement probes (Bently 3300/3500) and variable reluctance/magneto‑electric velocity sensors to capture rotor vibration, axial displacement, and keyphasor signals.

• 24‑bit ADC, up to 10kHz sampling rate, anti‑aliasing filtering, meeting API 670 machinery protection standards with sub‑micron displacement resolution.

• Channel‑to‑channel / channel‑to‑ground isolation ≥500Vrms; built‑in probe open/short/gap over‑limit diagnostics; TMR synchronous sampling and hardware voting to prevent false trips.

(3) System Integration & Diagnostics

• Fits Mark VIe I/O racks, works with PSVO I/O packs and WSVO servo drivers; not compatible with VSVO processors.

• Built‑in status diagnostics and fault alarms; configurable and monitored via ToolboxST software; supports online maintenance and fault localization.

3. Key Specifications

• Power: 24–28VDC, power consumption approx. 10W

• Temperature: Operating -30°C to +65°C; Storage -40°C to +85°C

• Physical: 33.02cm × 17.8cm × 2.17cm, weight approx. 1.0kg (2.2lbs)

• Signal Ranges: Displacement -2 to -22VDC, velocity ±10VAC; configurable LVDT excitation and servo current outputs

• Certifications: CE, UL 61010-1, API 670

• Mounting: Plug‑in to Mark VIe rack; terminal blocks accept #12 AWG wiring

4. Applications