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The GE DS200FCRRG1A DS200FCRRG1ACA Firing Circuit Control Board generates precise timing pulses for SCR bridges. This board receives synchronization signals from the AC line voltage. You will find it controlling the firing angle for three-phase rectifiers and inverters. It ensures accurate phase control for DC motor field supplies and regenerative drives.
Core Technical Specifications
The GE DS200FCRRG1A DS200FCRRG1ACA Firing Circuit Control Board measures 26.0 cm in width and 18.0 cm in height. Its board depth equals 2.5 cm including component heights. The total assembly weighs approximately 0.62 kilograms. Twelve independent firing pulse channels populate the board’s surface area. Each channel generates pulses for one SCR in a three-phase bridge configuration.
| Parameter | Specification |
|---|---|
| Number of Firing Channels | 12 Independent Channels |
| Firing Angle Range | 0° to 180° (Controlled) |
| Pulse Width | 30 µs to 120 µs (Programmable) |
| Synchronization Input | 3-Phase AC, 50/60 Hz |
| Output Pulse Voltage | ±15 VDC (Gate Drive) |
| Peak Output Current | 2 A per Channel |
| Auxiliary Power | 24 VDC ±10%, 0.5 A |
| Dimensions (W x H x D) | 26.0 cm x 18.0 cm x 2.5 cm |
| Weight | 0.62 kg (approx) |
Connectors and Input Interfaces
The GE DS200FCRRG1A DS200FCRRG1ACA Firing Circuit Control Board uses one 20-pin header for control signals. This header carries firing angle commands from the main processor. Three screw terminal blocks accept AC synchronization inputs from line voltage. Twelve 2-pin headers provide gate and cathode connections to SCR modules. Additionally, the board includes a 9-pin D-sub connector for diagnostic monitoring.
Phase Lock Loop and Timing Accuracy
This firing board employs a digital phase lock loop for synchronization. The PLL maintains accurate firing timing despite line frequency variations. Moreover, the GE DS200FCRRG1A DS200FCRRG1ACA Firing Circuit Control Board provides individual pulse transformer isolation on every output. This isolation protects the control logic from SCR commutation noise. A green LED confirms proper synchronization input presence. A yellow LED flashes at each zero-crossing detection. A red LED indicates a loss of phase lock fault condition.
Energy Storage and Thermal Management
This firing circuit board contains small filter capacitors on power inputs only. Therefore, it stores negligible residual energy after power removal. The GE DS200FCRRG1A DS200FCRRG1ACA Firing Circuit Control Board operates from 0°C to +60°C ambient temperature. Use shielded cables for all synchronization inputs to prevent noise pickup. Do not exceed the maximum output current rating per channel. Replace the board if any pulse transformer shows signs of damage.