Product Core Brief

• Model: DS200DCFBG1BGB
• Brand: GE Energy / GE Industrial Systems
• Series: GE Mark V Speedtronic / DS200 Series
• Core Function: DC feedback power supply board for GE Mark V drive and turbine control systems, providing control-level DC power, enclosure fan power, and AC/DC monitoring.
• Product Type: Mark V DC Feedback / Power Supply Board
• Condition: New Original / New Surplus (subject to available stock)

Key Technical Specifications

• Part Number:
• Platform: GE Mark V Speedtronic Turbine Control System
• Board Type: DC Feedback Power Supply Board (DCFB function code)
• Input Voltage: 38 to 115 VAC from control power transformer (CPT)
• Output Power: Control-level DC supplies including +5 VDC, ±15 VDC, and ±24 VDC
• Enclosure Fan Power: Provides 115 VAC for cabinet/enclosure cooling fans
• Protection: Three onboard fuses with LED and neon lamp indicators for blown-fuse diagnostics
• Configuration: Multiple DIP switches and configurable jumpers for user setup (typically up to 7 DIP switches and 12 jumpers in the DS200DCFBG1B family)
• Test Points: Five onboard test points for monitoring voltage levels
• Compatible Drives: AC2000, DC2000, FC2000, ME2000, CB2000, and EX2000 drive/exciter applications
• Typical Application: Gas/steam turbine drive control, exciter systems, Mark V drive power supply

 

Product Introduction (No Fluff)

The DS200DCFBG1BGB is a DC feedback power supply board for the GE Mark V Speedtronic turbine control system. It provides control-level DC power to the drive system and supplies power to enclosure cooling fans. The board also includes AC/DC monitoring circuits for feedback on electrical parameters such as armature current and voltage, field current, and AC line conditions.

The board belongs to the DS200DCFBG1B family of Mark V power supply boards. Members of this family are compatible with multiple GE drive and exciter platforms, including AC2000, DC2000, FC2000, ME2000, CB2000, and EX2000 applications. The board accepts an AC input in the range of 38 to 115 VAC and generates regulated control-level DC outputs, typically including +5 VDC, ±15 VDC, and ±24 VDC.

Onboard protection includes three fuses, with LED and neon lamp indicators to signal blown fuses. Five test points allow technicians to monitor voltage levels during commissioning or troubleshooting. User configuration is handled through onboard DIP switches and jumpers, which must be set to match the original board when performing a replacement.

The Mark V platform has been discontinued by GE, with newer systems such as Mark VIe serving as successors. DS200DCFBG1BGB is typically available as surplus or refurbished stock for legacy installations.

QA & Testing SOP (Dynamic & Transparent)

Each surplus unit undergoes:

1. Part Number Verification: Confirm the label reads DS200DCFBG1BGB. Check for GE markings and board revision.
2. Visual Inspection: Inspect the PCB surface, connectors, DIP switches, jumpers, fuses, LEDs, and neon lamp for corrosion, burns, or physical damage.
3. Fuse Check: Verify all three onboard fuses are present and intact. Replace if blown or corroded.
4. Indicator Check: Confirm LED and neon lamp indicators are present and not damaged.
5. DIP Switch & Jumper Check: Document all DIP switch and jumper positions. Verify they are intact and match the original board.
6. Connector Inspection: Verify all plug and刺 connectors are intact, with no bent pins or damaged contacts.
7. Test Point Check: Confirm all five test points are accessible and not corroded.
8. Continuity Check: Where possible, verify continuity across key power rails, fuse holders, and connector pins.
9. Packaging: Pack in anti-static bags with foam cushioning. Protect connectors, fuses, and DIP switches during transit.

 

Installation Pitfalls & Guide (Engineer to Engineer)

Match DIP switch and jumper settings exactly. Before removing the old board, document all DIP switch positions and jumper settings. The replacement must match the original configuration precisely.

Verify input voltage range. The board accepts 38 to 115 VAC input. Confirm the control power transformer (CPT) output matches this range before energizing.

Check fuse condition before power-up. Blown fuses may indicate an upstream fault. Replace fuses only after verifying the cause of the failure.

Use proper ESD protection. Always wear a grounded wrist strap when handling Mark V boards.

Monitor voltage at test points. After installation, use the five onboard test points to verify correct DC output levels before full system commissioning.

Confirm drive compatibility. Ensure the board is installed in a compatible drive platform (AC2000, DC2000, FC2000, ME2000, CB2000, or EX2000).

Document board location. Record the rack, slot, and drive type for future reference.

Installation Steps:

1. Pre-install: Confirm part number DS200DCFBG1BGB. Document all DIP switch and jumper positions on the existing board.
2. Power Down: Follow proper drive/turbine control system shutdown procedures. Verify no hazardous voltage is present.
3. Remove Old Board: Disconnect all connectors. Remove the board from the drive or rack.
4. Configure New Board: Set all DIP switches and jumpers on the replacement to match the original.
5. Install Board: Seat the board in the correct location. Reconnect all connectors securely.
6. Commission: Power up the system. Verify LED/neon indicators. Check voltage levels at test points. Confirm normal drive operation.

Technical FAQ

1. What is the DS200DCFBG1BGB? It is a DC feedback power supply board for the GE Mark V Speedtronic system, providing control-level DC power, enclosure fan power, and AC/DC monitoring.

2. What drives is it compatible with? It is compatible with AC2000, DC2000, FC2000, ME2000, CB2000, and EX2000 drive/exciter applications.

3. What input voltage does it accept? It accepts 38 to 115 VAC from the control power transformer.

4. What DC outputs does it provide? Typical outputs include +5 VDC, ±15 VDC, and ±24 VDC for control-level power.

5. Does it require configuration? Yes. DIP switches and jumpers must be set to match the original board. Settings vary by application.

6. How do I know if a fuse is blown? The board has LED and neon lamp indicators that signal blown fuses on the AC and DC power rails.

7. Is this product still in production? No. The Mark V platform has been discontinued. DS200DCFBG1BGB is typically available as surplus or refurbished stock.

8. What warranty do you offer on surplus stock? Terms vary by condition and availability. For surplus industrial modules, we typically provide a short functional guarantee. Confirm details at time of order.