The GE IS230STTCH1A, also cataloged as the IS230STTCH1A Terminal Interface Board, operates as a dedicated hardware component for field signal termination and conditioning within Mark V turbine control platforms.
Suffix Breakdown & Model Matrix
The model number IS230STTCH1A denotes the specific physical assembly for the TTCH terminal series. The "H1A" suffix indicates the board revision level, ensuring functional compatibility with the TCQA analog I/O module and the specific I/O core rack backplane wiring standards.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS230STTCH1A |
| Brand | GE Fanuc |
| Origin | USA |
| Weight | 0.78kg |
| Dimensions | Standard Mark V rack form factor |
| Operating Temp | Industrial standard range |
| Power Consumption | Not specified |
| Interface Module | TCQA Analog I/O Board |
| Signal Support | Thermocouple, LVDT, 4-20 mA, Servo, Vibration |
Backplane Bus Communication and Firmware Compatibility
The IS230STTCH1A facilitates signal routing via standardized backplane connectors to the TCQA module. Firmware flash compatibility is intrinsically linked to the TCQA module, which performs the digitization and processing of the signals passed through this terminal board. The board supports I/O density scaling across R1, R2, and R3 cores, ensuring that signal integrity is maintained via dedicated noise filtering and conditioning circuitry before the signals reach the primary I/O pack.
Frequently Asked Questions (FAQ)
Q: Does the board provide isolation between different signal types?
A: The board provides common-mode noise filtering and signal conditioning for incoming field lines, but galvanic isolation is primarily managed by the connected TCQA module and the system rack architecture.
Q: Can this board be used for both LVDT and 4-20 mA inputs simultaneously?
A: Yes, the board is designed as a universal termination point for the specified signal types. Field wiring must be mapped according to the system's specific terminal block designation to ensure proper impedance matching for LVDT vs current loop signals.
Field Installation Guidelines
- Ensure the Mark V I/O core is de-energized before mounting the board to the chassis.
- Align the board connectors with the backplane headers, ensuring no pins are bent during insertion.
- Secure the board using the provided mounting hardware to ensure proper physical contact and chassis grounding.
- Terminate field wiring using appropriate lug sizes for the terminal blocks, ensuring connections are tightened to the specified torque.
- Apply shielded cabling for all analog loops and ensure the shield drain wire is properly bonded to the board's designated earth terminal to suppress electromagnetic interference.
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