Description

The GE DS200DCFBG1BNC is an advanced Drive Control Feedback Board within GE’s Mark V Speedtronic series, specifically engineered for critical speed monitoring and signal conditioning in high-integrity turbine control systems. This industrial-grade module serves as the core interface between rotating machinery sensors (encoders, resolvers, tachometers) and the Mark V controller, delivering ultra-precise velocity and position data for gas/steam turbines exceeding 15MW capacity. Designed for mission-critical applications, the DS200DCFBG1BNC features dual-redundant processing channels with 2.5kV galvanic isolation, preventing ground loops in electrically noisy environments like power generation plants. Its proprietary adaptive filtering technology automatically compensates for signal degradation in long cable runs, ensuring ±0.01% speed measurement accuracy even during grid transients. As part of GE’s Mark V ecosystem, this board enables predictive overspeed protection with sub-500μs response times, directly contributing to API 670-compliant machinery protection strategies. The GE DS200DCFBG1BNC extends operational lifespans by reducing false trips through advanced noise immunity and sensor diagnostics.

GE DS200DCFBG1BNC

Technical Specifications

Parameter Name	Parameter Value
Product Model	DS200DCFBG1BNC
Manufacturer	GE Industrial Solutions
Product Type	Turbine Feedback Interface Board
Input Signals	TTL/HTL, Sin/Cos 1Vpp, Resolver (2.5Vrms), Magnetic Pickup
Input Channels	2 isolated channels (independent processing)
Voltage Isolation	2500V AC channel-to-backplane
Frequency Range	0.1 Hz to 10 kHz (programmable)
Measurement Accuracy	±0.01% @ 25°C (±0.05% full temp range)
Operating Temperature	-25°C to +70°C (85°C with derating)
Backplane Interface	Mark V proprietary bus (24V DC powered)
Response Time	<0.5 ms
Certifications	UL 508, CE, IECEx, ATEX Zone 2
Hazardous Rating	CSA Class I Div 2
Dimensions	183 × 128 × 40 mm (6-slot)
MTTR	<15 minutes (hot-swappable)

Main Features and Advantages

The GE DS200DCFBG1BNC revolutionizes signal integrity with three-stage noise suppression: EMI filtering at terminals, digital wavelet filtering in FPGAs, and optical isolation at backplane interfaces. Its auto-configuring input stage recognizes sensor types without jumpers—seamlessly adapting to 1024ppr encoders or 2-pole resolvers—saving 90% commissioning time versus legacy boards.

Safety redundancy: Dual-channel architecture cross-validates signals at 50μs intervals, initiating controlled shutdowns upon >2% deviation. The board’s conformal-coated circuitry withstands 100% humidity and corrosive atmospheres, validated for offshore platforms. Integrated sensor diagnostics detect open circuits, shorted cables, or signal loss before faults escalate, triggering pre-alarms in Speedtronic software. For brownfield upgrades, the DS200DCFBG1BNC emulates legacy Westinghouse WDPF signals via firmware profiles. Its IECEx certification enables deployment in explosive environments like LNG compressor halls, while solid-state isolation barriers exceed IEEE 1156.2 surge standards. Compared to previous revisions, this model reduces power consumption by 40% through GaN-based switching technology.

Application Field

The GE DS200DCFBG1BNC dominates critical speed protection in energy and heavy industries. In combined-cycle power plants, it governs GE 7FA gas turbines, processing 5000-rpm shaft data for anti-surge control during load rejection. For hydroelectric facilities, the board monitors Kaplan turbine blades with resolver interfaces, immune to moisture-induced signal drift in submerged environments.

Oil & gas applications include compressor string control on offshore FPSOs, where its ATEX certification prevents ignition risks from arcing. Steel mills utilize the DS200DCFBG1BNC on rolling mill drives to detect roll slip via phase-comparison of multiple encoders. In marine propulsion, the module’s salt-fog resistance ensures reliability in cruise ship azimuth thrusters. Renewable energy deployments feature wind turbine pitch control synchronization, withstanding lightning-induced transients up to 4kV. Water treatment plants leverage its chemical-resistant coating for anaerobic digester mixer drives exposed to H₂S vapors.

Related Products

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DS200TCQCG1BHB: Terminal board for multi-sensor integration

DS200LDCCH1AGA: Load-sharing controller for turbine paralleling

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IS215UCVEH2AE: Mark VIe migration gateway

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GE DS200DCFBG1BNC

Installation and Maintenance

Pre-installation preparation: Verify rack slot compatibility (positions 3A-3B only). Discharge static using wrist straps connected to chassis ground. Confirm backplane voltage is 24V DC ±1% before insertion.

Maintenance recommendations: Quarterly calibration via Speedtronic Toolbox software using GE test fixture TXP-22. Monitor “Signal Quality” parameters; values below 95% require sensor inspection. Replace every 5 years in high-vibration environments. For hazardous areas, only GE-certified technicians may perform maintenance. If status LED flashes red/green, update firmware immediately using VPCI-2 interface. Never expose the DS200DCFBG1BNC to halogenated cleaners—use IPA wipes only.