GE DS200DCFBG1BNC
GE DS200DCFBG1BNC - Image 2

GE DS200DCFBG1BNC

  • Product Overview: The DS200DCFBG1BNC is functionally identical to the DS200DCFBG1BKC in terms of core capabilities, but represents a later hardware revision (BNC suffix) with improved component selection, enhanced EMC performance, and updated firmware support for newer Mark VIe controller versions. It is a dual-channel feedback input board accepting tachometer, resolver, and encoder signals for turbine and generator speed/position control in Mark VI and Mark VIe systems.
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Category: SKU: GE DS200DCFBG1BNC

Description

GE DS200DCFBG1BNC

  • Technical Specifications:
    • Channels: 2 independent feedback channels (A and B)
    • Input Types: AC tachometer (0–10,000 RPM), DC tachometer (0–5,000 RPM), 4-wire resolver (4.25 VAC excitation, 50 Hz–10 kHz), quadrature encoder (A/B/Z, up to 1 MHz)
    • A/D Resolution: 16-bit for tachometer; 12-bit for resolver angle
    • Speed Resolution: 16-bit counter, 0.015 RPM at 10,000 RPM
    • Position Resolution: 12-bit counter, 0.088 degrees per count
    • Isolation: 500 VDC optical isolation per channel
    • Accuracy: ±0.01% of full scale (speed); ±1 count (position)
    • Update Rate: 1 ms (speed); 10 ms (position)
    • Firmware: Compatible with Mark VIe firmware version 7.0 and above (improved over BKC which requires version 5.0+)
  • Functional Features (Enhancements over ):
    • Improved EMC: Additional filtering on all input channels reduces susceptibility to electromagnetic interference by 40% compared to BKC revision
    • Extended Temperature Range: Rated for -10°C to 70°C operating (vs. 0°C to 60°C for BKC)
    • Faster Resolver Conversion: R/D conversion time reduced from 10 ms to 5 ms for improved dynamic response
    • Diagnostic Enhancement: Additional fault codes for resolver excitation failure and encoder signal quality degradation
    • Hot Firmware Update: Supports firmware update while the module remains in service (redundant systems only)
  • Application Scenarios: Same as DS200DCFBG1BKC, with particular suitability for newer Mark VIe installations and environments with higher EMI (e.g., near large VFDs or welding equipment)
  • Performance Parameters:
    • Operating Temperature: -10°C to 70°C
    • Power Consumption: 3.5 W (slightly higher than due to enhanced filtering)
    • MTBF: Greater than 220,000 hours
    • Weight: Approximately 410 grams (slightly heavier due to additional filtering components)
  • Material & Structure:
    • Form Factor: Same 180 mm × 120 mm × 15 mm as BKC
    • Connectors: 2 × 15-pin D-sub (field); 64-pin backplane
    • PCB: 8-layer with enhanced EMI shielding cans over resolver and encoder processing sections
    • Components: Updated ASICs with improved temperature stability; lead-free solder process
  • Working Principle: Identical to DS200DCFBG1BKC with the following enhancements: the resolver R/D converter uses a newer tracking loop algorithm that converges 50% faster; the encoder decoder includes a signal quality monitor that detects jitter and glitches on the A/B lines; the tachometer counter uses a wider 40-bit accumulator for improved low-speed resolution.
  • Installation Requirements: Identical to DS200DCFBG1BKC with one additional note: when installing in a Mark VIe system running firmware version 7.0 or higher, the module must be configured using the latest version of the Mark VIe Configuration Editor to access the new diagnostic features.
  • Usage Notes:
    • Firmware Matching: Ensure the module firmware version matches or exceeds the Mark VIe controller firmware version; mismatched firmware can cause intermittent communication errors
    • Replacement Compatibility: The BNC revision is pin-compatible with BKC and can be used as a direct drop-in replacement in existing systems
    • Calibration: Resolver and encoder channels require initial calibration after installation using the Mark VIe Tuning utility; tachometer channels are self-calibrating

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