The GE DS200FGPAG1A, also cataloged as the DS200FGPA Gate Pulse Amplifier Board, operates as a dedicated hardware component for gate pulse amplification, SCR bridge phase power delivery, and optical cell status feedback within GE LS2100 Static Starter platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DS200FGPAG1A |
| Brand | GE Energy |
| Origin | USA |
| Series | LS2100 |
| Functional Acronym | FGPA |
| Revision Group | Group 1, Revision A (G1A) |
| Board Compatibility | Not backwards compatible |
| Converter Supply Voltage | 2080 or 3300 VAC (Twelve-Pulse Converter) |
| Power Input | 120 Vrms (+/- 20%), 50/60 Hz, ~350 VA maximum |
| Internal Voltage Rails | P15 (13.5 to 14.5 VDC), P5 (4.7 to 5.1 VDC), P90 (>= 81 VDC), P40 (>= 25 VDC) |
| Gate Driver Circuits | 2 x Independent Gate Driver Circuits (Gate A, Gate B) |
| Fiber-Optic Interface | 15 x Fiber-Optic Connectors (1 Transmitter, 14 Receivers) |
| Diagnostic Test Points | 30 x Onboard Test Points (9 Gate A, 9 Gate B, 12 Cell Status Monitor) |
| Manual Reference | GEI-100223 |
| Operating Temp | 0 to 60 deg C |
| Dimensions | Standard GE LS2100 Board Size |
| Weight | Standard GE LS2100 Board Weight |
| Power Consumption | Integrated SMPS converting AC input to internal DC rails |
Firmware Flash Compatibility & Communication Bus Processing
The DS200FGPAG1A interfaces directly with the LCI controller via a high-speed optical serial data link. The onboard switching power supply converts the 120 Vrms AC input into DC rails (P15, P5, P90, P40) to drive gate pulse logic and monitoring circuits. Fourteen fiber-optic receivers collect cell voltage data from remote FHVA modules, which the SCR status monitoring block serializes and transmits back through the single optical transmitter channel. Real-time diagnostic verification relies on 30 dedicated physical test points, including TP101 (1PUSH1 push cycle start logic), TP105 (VLINKA primary voltage), and TP110 (0RELA gate inhibit release logic). Gate currents are supplied directly to push-pull drive topologies via integrated gate pedestal and gate backporch sources.
Frequently Asked Questions
Q: What primary functions are executed by the onboard hardware on the DS200FGPAG1A?
A: The board executes three distinct functions: AC-to-DC power supply switching for internal gating rails, gate pulse driving for one phase of an SCR bridge, and optical SCR cell status monitoring.
Q: Can the DS200FGPAG1A be installed as a backward-compatible replacement for earlier FGPA revisions?
A: No, the DS200FGPAG1A board is not backwards compatible with earlier legacy revisions and must match system firmware and hardware revision specifications.
Q: How does the DS200FGPAG1A receive and transmit SCR cell monitoring data?
A: The board receives cell voltage telemetry from attached FHVA modules across 14 fiber-optic receivers and relays processed status data to the LCI controller through 1 fiber-optic transmitter.
Field Installation Guidelines
- De-energize the LS2100 drive cabinet, isolate the 120 Vrms input, and ground the high-voltage SCR bridges prior to physical module replacement.
- Wear a grounded static-dissipative wrist strap connected to the enclosure chassis during handling to protect onboard optical and switching logic components.
- Inspect and clean all 15 fiber-optic connectors prior to insertion, ensuring proper cable bend radius to prevent optical signal attenuation.
- Verify internal DC voltage rails at test points (P5, P15, P40, P90) following installation and power restoration to validate switching power supply operation.
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