Description
IS200TCASH1A GE TCAS Terminal Board
1. Product Features
- IS200TCASH1A (TCAS) is a signal termination board for GE Speedtronic Mark VI / Mark VIe turbine control system, acting as the interface between field sensors and BCAA analog acquisition boards.
- Equipped with dual 68‑pin high‑density connectors (P1, P2) for TCAT cable connection; P5 accepts 28 VDC control power and supplies power to JGPA shielding boards via P4.
- Supports LVDT excitation signal routing and thermocouple signal distribution, realizing transmission of valve position and temperature measuring signals.
- Built‑in surge suppression and EMC protection circuits, effectively resisting electromagnetic interference inside power plant control cabinets.
- Conformal coated PCB to prevent corrosion, dust and moisture damage for long‑term continuous operation.
- Single‑width standard rack plug‑in structure, easy installation, inspection and module replacement.
- Reserved test points and signal terminals, convenient for on-site signal debugging and fault troubleshooting.
- Supports TMR triple modular redundant architecture to meet high safety requirements of turbine protection control.
IS200TCASH1A
2. Product Parameters
| Item | Specification |
|---|---|
| Brand | General Electric (GE) |
| Model | IS200TCASH1A |
| Full Name | TCAS Terminal Board |
| Applicable System | Speedtronic Mark VI / Mark VIe Turbine Control System |
| Power Input | 28 VDC Control Power |
| Main Connectors | P1/P2: 68‑pin; P4: Power to JGPA; P5: Bulk control power input |
| Supported Signals | LVDT excitation signals, thermocouple analog signals |
| Operating Temperature | -20 ℃ ~ +70 ℃ |
| Storage Temperature | -40 ℃ ~ +85 ℃ |
| Relative Humidity | 5% ~ 95%, non‑condensing |
| Installation Method | Single-width plug-in on Mark VI/VIe rack backplane |
| PCB Protection | Conformal coating |
| Country of Origin | United States |
| Approximate Gross Weight | 0.42 KG |
| Warranty | 12 months |
3. Product Operation Instructions
- Static Protection: Wear anti-static wristband before touching the module to avoid electrostatic breakdown of electronic components.
- Pre-installation Check: Confirm the control rack power is fully cut off; inspect the board for cracks, corrosion or loose terminals.
- Installation: Align the connector with the rack slot, insert smoothly and fasten the front panel locking screw.
- Wiring: Connect field sensor cables to corresponding terminal blocks; connect TCAT cables between TCAS and BCAA boards strictly per official wiring drawing.
- Power-on Inspection: Energize the cabinet after all wiring is completed, check power supply status and communication continuity.
- Commissioning: Complete channel signal verification, confirm LVDT and thermocouple signals can be normally collected by the control system.
- Daily Operation: Regularly check terminal tightness and signal quality; monitor measuring data through upper monitoring software.
- Maintenance & Replacement: Cut off all power supply before disassembly. After replacement, recheck all wiring and carry out signal loop test.
- Troubleshooting: Check cable contact, connector damage and power supply status when signal loss or abnormal measurement occurs.
4. Application Fields
- Combined Cycle Power Plants: Gas turbine and steam turbine Mark VI/VIe control cabinets.
- Thermal Power Plants: Generator unit turbine control & protection system.
- Independent Power Plants and Captive Power Stations.
- Oil & Gas Industry: Onshore and offshore gas turbine power generation equipment.
- Heavy Industry: Steel plant, chemical plant self-generating turbine control system.
- Turbine control system overhaul, spare parts replacement and technical retrofit projects.
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