GE DS200DCFBG2BNC DC Power Supply Board for Mark V – Stable Logic Power for +5V/±15V Rails

The GE DS200DCFBG2BNC is the Mark V DC Power Supply & Instrumentation Board that feeds the control rack’s logic rails. From my experience, plants choose this board when they need a drop-in replacement that restores clean +5 V and ±15 V power without touching the rest of the core. It’s typically used in gas and steam turbine control cabinets, and it seems to be one of those boards that, when swapped correctly, immediately stabilizes nuisance resets and low-voltage alarms.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment prior to delivery
• Express options: FedEx, UPS, DHL
• Each unit is function-checked before shipment, ESD-packed, and labeled for traceability.

Key Features

• Designed for Mark V racks – Plug-in replacement for DS200DCFB series in GE Speedtronic Mark V control systems.
• Regulated logic outputs – Provides the core logic rails used throughout the rack, typically +5 V and ±15 V DC for control and I/O cards.
• Clean, stable DC – On-board regulation and filtering help reduce noise on the backplane; often eliminates intermittent logic dropouts.
• Status indication – Front LEDs and test points simplify on-site diagnostics and commissioning.
• Form-fit-function compatibility – G2/BNC variant aligns with standard DS200 mechanicals and connectors, easing fast swap-outs.
• Service-friendly – From field feedback, technicians value the accessible connectors and predictable behavior after power-up.

Technical Specifications

Application Fields

This board is used across GE Mark V Speedtronic platforms in power generation and process industries:

• Gas and steam turbine control cabinets (prime movers and auxiliaries)
• Balance-of-plant panels for refinery and petrochemical operations
• Pipeline compressor stations and mechanical drive packages
• Heavy industrial drives and legacy GE control retrofits where Mark V remains in service

Advantages & Value

• Reliability in the rack – Stable rails tend to reduce intermittent controller resets and nuisance trips.
• Compatibility – Form-fit-function replacement for DS200DCFB variants used across Mark V cabinets.
• Cost & downtime savings – In many cases, swapping this board restores system health faster than chasing downstream logic faults.
• Technical support – Pre-shipment checks and guidance on jumper/strap settings where applicable.

Installation & Maintenance

• Cabinet environment: Install in a clean, ventilated Mark V rack; maintain ambient typically 0–60 °C and avoid condensation.
• Safety: De-energize and lock out the 125 VDC (or site supply) before handling. Use ESD protection and handle by the card edges.
• Mounting & wiring: Slide into the designated slot, ensure the backplane connector is fully seated, and secure all mounting screws. Verify harnesses and any ground straps are tight.
• Commissioning checks: After power-up, confirm +5 V and ±15 V rails at test points; check LED status; monitor for steady regulation under load.
• Routine care: Quarterly visual inspection for dust; clean with dry air; verify terminal tightness. Firmware is not applicable to this board, but cabinet power quality checks are recommended.

Quality & Certifications

• Built for industrial duty; typically used within CE-marked Mark V systems
• UL/CSA compliance may apply at the cabinet/system level (legacy Mark V equipment)
• Legacy hardware may not be RoHS; we can match site compliance requirements upon request
• Warranty: 365 days