DS200SDCIG2AEB: Control Power for DC2000 Drives

DS200SDCIG2AEB is a G2-group SDCI board – DC Power Supply and Instrumentation – built by GE for the DC2000 static drive family and sold within the Mark V DS200 series, since DC2000 drives of this type commonly serve as auxiliary or starting equipment on turbines controlled by a Speedtronic Mark V panel. The board supplies regulated control power along with motor field power circuits, driver circuits for armature SCR gating, and instrumentation circuits covering AC line and DC motor signals: armature current and voltage, field current and voltage, voltage magnitude, and phase sequence.

Being G2-group, this board is built for an external field exciter, in contrast to G1-group SDCI boards, which include an internal exciter circuit rated at 10 amps or less. This distinction affects function, not just labeling – a G1 board will not operate correctly on a drive wired for an external exciter. Like all SDCI boards, this one connects directly to drive-side field wiring, CTs, and shunts rather than sitting in the Mark V's turbine control cores.

Diagnose Before You Order a Replacement

The SDCI's fuse protection is meant to point you toward the actual fault rather than leave you guessing. FU1 (115 VAC supply), FU2/FU3 (signal-level power), and FU5/FU6 (internal NRX/MOV assembly) each carry a dedicated LED that lights when that fuse blows. When one does:

• Fully de-energize the drive and let the board discharge before opening the cabinet further – hazardous voltage can remain present after shutdown.
• Check the field wiring on that circuit for a short or degraded insulation before replacing the fuse itself. A single blown fuse can be incidental; repeated blows nearly always point to a downstream wiring or field-device problem, not a defective board.
• Resolve that fault first, then replace the fuse or board – otherwise a new board is likely to fail the same way shortly after being powered up.

When installing a replacement, transfer the jumper and switch settings from the outgoing card exactly – JP1 (MD control source jumper), JP2 (AC contactor drop-out time jumper), SW1 (AC line CT burden selection based on nominal DC output current) – rather than leaving them at factory default. And confirm your drive's actual exciter configuration before ordering, since G1 and G2 are not interchangeable.

What G2AEB Tells You

DS200 is the board series prefix, SDCI is the DC Power Supply and Instrumentation acronym, G2 is the product group (external field exciter), and EB is this unit's specific revision combination. GE's instruction manual for this board family is referenced as GEI-100173. Treat G1 and G2 as distinct exciter configurations, not simple revision numbers, and match the group to your drive's actual wiring.

Related Boards and Broader Context

Since the SDCI operates on the drive/exciter side of the system, it isn't grouped with Mark V control-core boards like TCDA or TCEA in routine troubleshooting. To see how the SDCI's DS200 numbering relates to the wider Mark V board family, see our GE Mark V DS200 Boards Explained guide and the GE Speedtronic Part Number Decoder. If a platform migration is part of your plans, our Mark V vs Mark VI: DS200 to IS200 guide covers the general shift to GE's later architecture.

What to Send With Your Quote Request

• The full part number and suffix, e.g., DS200SDCIG2AEB
• A photo of the existing card's label
• Drive/turbine model and confirmation of internal vs. external exciter
• Quantity needed
• Urgency – planning ahead or an active fault

Request a Quote

This DS200SDCIG2AEB is offered used, cleaned and tested, with a 1-year warranty (see below). Pricing isn't published online since these quotes depend on exact revision match and current availability – submit a Request a Quote and expect a reply within 24 hours. We ship worldwide DDP, accept purchase orders, and support both scheduled work and urgent downtime orders.

General Information about the Product
Part Number	DS200SDCIG2A Mark V DS200
Description	DS200SDCIG2A By General Electric DS200SDCIG2AEB Ctrl Power Supply Board Mark V
Condition	used Cleaned and Tested. With 1 Year Warranty.