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GE DS200SDCIG1AF

Product Name:​ Mark V DC2000 Drive Interface & Power Conditioning Board (SDCI)
Introduction:​ Interface board bridging Mark V logic to GE DC2000 adjustable speed DC drive, providing field power regulation, SCR gate drive, and signal isolation.
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Detailed content

Technical Specifications:
  • Input:​ 115–230 VAC (or high‑voltage DC bus derived), polarity protected
  • Logic Outputs:​ +5 VDC ±3 %, +3.3 VDC ±3 %
  • Current:​ 0.5–5 A, max ≈26.5 W
  • Field I/O:​ Motor field supply, tachometer input, SCR pulse output
  • Temp:​ −40 to +70 °C
  • Dimensions:​ ≈135 × 99 × 56 mm, 0.34 kg
    Functional Features:
  • Integrates power transform, snubber, fuse protection
  • Conditions armature feedback and field current
  • Drives six‑pulse SCR bridge gates
    Working Principle:​ Steps down and regulates cabinet AC to logic DC, shapes firing pulses from Mark V to thyristor gates, returns armature/tach feedback to controller.
    Materials:​ Industrial FR‑4, metal heat spreader, ceramic fuses, optoisolators.
    Installation:​ Mount in Mark V drive bay, align with DC2000 ribbon/terminal interface, check fuse rating before energize.
    Precautions:​ SCR gate leads are noise‑sensitive; never run without shielding; verify field polarity or risk reverse‑bias damage.

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