Product Core Brief
- Model: DS200FCGDH1B
- Brand: GE (General Electric)
- Series: Speedtronic Mark V / LS2100 Static Starter
- Core Function: Distributes gate firing signals and monitors SCR bridge status for gas turbine and LCI control systems.
- Product Type: Gate Firing and Card Status (FCGD) Board
- Key Specs: 6-Pulse Phase-Controlled Bridge Interface | VME Backplane | Part Number
- Condition: New Original (New Surplus) | Factory Sealed
Key Technical Specifications
| Parameter | Value |
|---|---|
| Component Type | Gate Firing and Card Status (FCGD) Board |
| System Platform | GE Speedtronic Mark V / LS2100 |
| Primary Function | SCR Trigger Distribution & Bridge Status Monitoring |
| Bridge Compatibility | 6-Pulse Phase-Controlled Non-Reversing Bridge |
| Communication Interface | VME Backplane |
| Manufacturer Part Number | |
| Diagnostic Feedback | Frequency, Voltage, Board Status, Overcurrent |
| Application | Gas Turbine, Steam Turbine, LCI Control |
| Environmental Rating | Industrial Grade, Conformal Coated |
| Condition | New Original (New Surplus) |
| Warranty | 1-Year Functional Warranty |
DS200FCGDH1B
Product Introduction
Precise SCR firing and reliable bridge status feedback are critical to preventing turbine trips, and the is engineered to deliver exactly that. Functioning as the Gate Firing and Card Status (FCGD) board, this module acts as the vital interface between the digital signal processing card (DSPC) and the six-pulse phase-controlled non-reversing bridge.
Designed for continuous industrial duty, the decodes unit gating signals, distributes them to the appropriate bridge arms, and scales the returning multiplexed status feedback. By processing frequency, voltage, and current state data before transmitting it back over the VME backplane, this board ensures the Mark V controller maintains deterministic, high-speed regulation of the gas turbine or LCI system.
Key Selling Points & Differentiators
- Precision Gate Distribution: Accurately decodes and assigns unit gating signals to the six-pulse SCR bridge, ensuring precise thyristor firing and stable turbine power conversion.
- Comprehensive Bridge Monitoring: Continuously scales and returns multiplexed feedback (voltage, frequency, and board status) to the DSPC, enabling real-time diagnostic visibility.
- Verified Functionality: Every undergoes a 24-hour live load test on a dedicated Mark V test rack before shipping, complete with a signed test report.
- Not Recommended For: Do not use this board as a general-purpose I/O module or in non-Mark V/LS2100 systems. It is strictly a specialized gate firing interface for 6-pulse SCR bridges.
- Stock Availability: Current inventory is factory-sealed new surplus with traceable lot numbers; typically ships within 48 hours of order confirmation.
- Warranty Backed: Includes a 1-year functional warranty covering manufacturing defects and DOA conditions, with no restocking fees for verified failures.
DS200FCGDH1B
FAQ
Yes. All units in stock have passed our 24-hour live bench test and include a signed test report. We ship same-day for orders placed before 2 PM EST, so you’ll have tracking before end of day.
The is specifically designed for the Speedtronic Mark V and LS2100 static starter platforms. While some DS200 series boards cross over, verify your system architecture and DSPC firmware first to ensure proper recognition. Send us your system details, and we’ll confirm compatibility within 30 minutes.
What happens if the board loses the system heartbeat?
The board features a built-in heartbeat monitor. If the heartbeat signal exceeds 8 milliseconds, the front panel IMOK LED and gate firing outputs will shut down to protect the turbine. A hard reset is typically required to clear this condition.
Do I need to reconfigure the module after installation?
No. The relies on the DSPC and VME backplane for its configuration logic. Simply plug it into the same slot, and the system will recognize it. However, always verify the gate firing timing and bridge feedback scaling in your Mark V configuration tool after replacement.
What if the module fails within the warranty period?
We offer a no-questions-asked replacement for any verified manufacturing defect. Ship the failed unit back with your RMA number, and we’ll send a replacement within 24 hours of receipt. We also provide a loaner program for critical turbine control loops to minimize downtime.
Can this board handle high-interference environments?
Yes. The features conformal coating and robust isolation designed for harsh turbine environments. However, ensure your fiber optic connections to the FGPA boards are clean and properly seated, as optical noise can corrupt the returned status signals.
Is this a refurbished or new surplus unit?
This is New Original (New Surplus) – factory sealed, never installed, with full traceability to the original manufacturing lot. It is not refurbished, repaired, or pulled from a decommissioned system. We provide the original manufacturer’s lot code upon request for your quality records.
Quality Transparency SOP
- Incoming Verification: Source traceability confirmed via lot code; anti-counterfeit visual inspection; serial number cross-referenced with OEM records; accessories verified.
- Live Bench Test: Dedicated Mark V test rack; power-on self-check; VME backplane communication handshake; gate firing pulse simulation; 24-hour continuous load test; signed test report generated.
- Electrical Tests: Insulation resistance verified at 500V megger (>10 MΩ); ground continuity confirmed; fiber optic link integrity validated.
- Firmware Verification: Firmware version recorded; DIP/jumper configuration backed up and documented.
- Final QC & Packaging: QC sign-off; anti-static seal applied; shock protection installed; QC Passed label affixed with date and inspector ID.
Test photos and video available upon request. We never claim “100% failure-free” – we provide verified, tested units with documented performance.
Technical Risk Avoidance
- DSPC Firmware Mismatch: Risk: Gate firing timing errors or communication dropouts. Prevention: Verify the DSPC firmware supports the revision. Field Note: We’ve seen gate firing failures because the DSPC and FCGD had mismatched firmware revisions. Always check the version.
- Fiber Optic Contamination: Risk: Corrupted bridge status feedback. Prevention: Clean fiber optic connectors before installation; do not exceed minimum bend radius. Field Note: Dust on the fiber connection caused intermittent status faults that mimicked a bad SCR bridge. Handle fiber cables carefully.
- Backplane Seating: Risk: Intermittent VME communication. Prevention: Ensure the module is fully seated and locked onto the VME backplane. Field Note: A partially seated FCGD caused random gate firing dropouts during plant vibration. Push firmly until the latch clicks.
- Overcurrent Latch-Up: Risk: Board disables gate outputs. Prevention: Verify external hardware overcurrent signals are within spec. If an overcurrent signal exceeds 26ms, the board latches and requires a hardware reset. Field Note: A faulty SCR caused a prolonged overcurrent, latching the FCGD. Troubleshoot the bridge first.
- ESD Damage: Risk: Silent gate driver failure. Prevention: Use grounded wrist strap and anti-static mat during handling. Field Note: We’ve tested boards that passed power-on but had dead gate outputs after 48 hours due to ESD. Handle with care.
