Contact Input Terminal Board ||GE Fanuc IS200STCIH6ADD
Manufacturer: GE Fanuc
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Part Number: IS200STCIH6ADD
Condition：New with Original Package
Product Type: Simplex Contact Input Terminal Board
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The IS200STCIH6A (functional acronym STCI) is an authoritative Simplex Contact Input Terminal Board engineered by GE Fanuc for the Mark VI Speedtronic turbine control system. This module is a mechanical necessity for capturing discrete digital signals from field devices such as limit switches, pressure switches, and relay contacts. As a specialized interface board, the IS200STCIH6A manages the conditioning, optical isolation, and debouncing of up to 48 dry or wetted contact inputs. Its primary role is to ensure that critical status information is accurately transmitted to the VME processor, protecting the control logic from electrical noise and field-side surges common in power generation and heavy industrial environments.
Detailed Technical Specifications
| Attribute | Details |
| Manufacturer | GE Fanuc / General Electric |
| Model Number | IS200STCIH6A |
| Ordering Number | IS200STCIH6ADD |
| Series | Mark VI Speedtronic |
| Functional Acronym | STCI |
| Product Type | Simplex Contact Input Terminal Board |
| Input Density | Up to 48 digital contact inputs |
| Signal Processing | Optical isolation, hardware filtering, and digital debouncing |
| Input Configuration | Supported for dry contacts or 24/125 VDC wetted contacts |
| Protection Features | High-voltage surge suppression and galvanic isolation |
| Connector Type | Dual barrier-style terminal blocks for field wiring |
| Diagnostics | Onboard status LEDs for each input channel |
| Operating Temp | -40 °C to +70 °C (-40 °F to 158 °F) |
| Form Factor | Standard 6U Mark VI Terminal Board (266 × 197 mm) |
Engineering and Operational Guidelines
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Digital Input Expertise: The IS200STCIH6A excels at maintaining signal integrity across long field cable runs. Its expertise in hardware-based debouncing prevents "chatter" or nuisance alarms from reaching the control processor, which is essential for the stable monitoring of turbine auxiliary systems.
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Optical Isolation Logic: A trustworthy feature of the STCI board is its comprehensive optical isolation. By decoupling field circuits from the VME backplane logic, the board prevents ground loops and high-voltage transients from compromising the core turbine controllers.
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Authoritative Diagnostics: The front faceplate includes diagnostic LEDs that provide immediate visual confirmation of each contact state. This authoritative feature allows maintenance engineers to perform rapid loop-checking and fault isolation directly at the cabinet without requiring secondary diagnostic tools.
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Flexible Voltage Support: Depending on the specific hardware grouping (e.g., H6A), the board can be configured to supply wetting voltage to dry contacts or monitor externally powered circuits, making it an application-flexible solution for complex retrofits.
Technical FAQ
Q: What is the primary difference between the IS200STCIH6A and the TBCI board?
A: While both handle contact inputs, the IS200STCIH6A is specifically designed for Simplex (non-redundant) configurations. The TBCI is typically utilized in Triple Modular Redundant (TMR) architectures where signals are fanned out to three separate controllers (<R>, <S>, and <T>).
Q: Does the "H6ADD" suffix impact installation?
A: The IS200STCIH6ADD denotes a specific functional revision and grouping. It is a professional best practice to verify that the "H" revision level and the three-letter suffix match your existing software configuration to ensure consistent debouncing time constants and wetting voltage compatibility.
Q: Can this board monitor 125 VDC wetted contacts?
A: Yes, provided the board is used in conjunction with the appropriate terminal blocks and hardware configuration. The IS200STCIH6A is rated to handle standard industrial wetting voltages including 24 VDC and 125 VDC.