The DS200DCFBG1BDB is a high-performance power supply board from the GE Mark V DS200 series, designed specifically for DC2000, CB2000, EX2000, FC2000, GF2000, ME2000, and AC2000 IGBT drive applications. This board, fully designated as DS200DCFBG1BDB, serves as a critical component in industrial drive systems, converting input power from the control power transformer (CPT) into regulated control-level voltages while providing monitoring and protection functions.
The DS200DCFBG1BDB accepts 38 V ac (±10%) or 24 V dc input and generates stable +5 V dc, ±15 V dc, and ±24 V dc outputs. It also supplies isolated 115 V ac power for enclosure fans (where applicable). With built-in voltage-controlled oscillator (VCO) circuits, fuse protection, LED/neon status indicators, and configurable jumpers and DIP switches, the DS200DCFBG1BDB ensures reliable operation and easy field configuration.
This product introduction provides a complete, SEO-optimized specification for the DS200DCFBG1BDB. All references use the full product designation DS200DCFBG1BDB to meet Google’s content uniqueness and keyword relevance standards.
Key Features of DS200DCFBG1BDB
Multiple Power Outputs: +5 V dc (4 A), ±15 V dc (0.8 A each), ±24 V dc (3 A / 1 A)
Input Flexibility: Accepts 38 V ac (±10%) or 24 V dc from control power transformer
Voltage and Current Feedback: Built-in VCO circuits for armature current, field current, AC line voltage, and DC bridge voltage
Protective Fuses: FU1 (115 V ac), FU2 and FU3 (±24 V dc lines) with visual indicators
Configurable Hardware: 12 jumpers (13 on later revisions) and 7 DIP switches for application-specific scaling
Diagnostic Testpoints: +5 V, +15 V, -15 V, common (DCOM), and ACCT signal testpoints
Multiple Connectors: 1PL, 2PL, 4PL, 5PL, 1CPL, CNPL, CPTPL, FAPL, NPL, PPL, SQPL, IA1PL, IA2PL, IF1PL, IF2PL, MACPL, and stab terminals
Status Indicators: Red LEDs for fuse status (CR51, CR55) and neon lamp (LT1) for 115 V ac fuse
Functional Description of DS200DCFBG1BDB
The DS200DCFBG1BDB receives 38 V ac (or 24 V dc) from the control power transformer. This input is full-wave rectified and filtered to produce unregulated ±24 V dc outputs. Linear regulators then derive ±15 V dc, and a switching regulator generates the +5 V dc output. The DS200DCFBG1BDB also produces an isolated +5 V and ±15 V dc for armature current feedback circuits.
The DS200DCFBG1BDB includes multiple voltage-controlled oscillator (VCO) circuits that convert analog signals (armature current, field current, AC line voltage, DC bridge voltage) into frequency signals sent to the SDCC/LDCC board via connector 1PL. These signals are used for commutation failure detection, AC instantaneous overcurrent (IOC), phase sequence monitoring, and SCR firing control.
A gate array on the DS200DCFBG1BDB controls SCR firing based on signals from the SDCC/LDCC board. The gate array is programmed at power-up by a serial PROM. To prevent spurious firing, firing power is removed until programming is complete and +5 V is regulated.
Jumper and Switch Configuration for DS200DCFBG1BDB
The DS200DCFBG1BDB includes 12 configurable jumpers (JP1 to JP12, and JP13 on later revisions like BKC; the DB suffix indicates a specific factory configuration – always verify against the original board’s settings) and seven DIP switches (SW1 to SW7). All jumpers and switches must be set identically to the board being replaced unless otherwise instructed. Factory settings are provided on test data sheets supplied with each controller.
Critical Jumper Settings (Examples)
JP1: Selects AC line sync source – position 1.2 for DC2000 (line voltage 2-3), position 2.3 for EX2000 (TCCB card).
JP2: Controls AC contactor dropout delay – 1.2 for normal (~100 ms), 0 for minimum delay.
JP3-JP7: Configure armature shunt #1 input and VCO circuit (direct shunt or analog isolator, local VCO enable/disable).
JP8-JP12: Same as above for armature shunt #2.
JP13 (on BKC and later): Scaling for shunt or multibridge totalizing shunt.
Critical DIP Switch Settings (Examples)
SW1, SW2, SW3: Scale AC line voltage feedback (308 V to 617 V nominal, or higher with SHVI/SHVM attenuators).
SW4: Scales DC bridge voltage feedback VCO.
SW5: Scales DC motor voltage feedback VCO.
SW6: Scales analog DC motor voltage feedback (unipolar A/D with 2.5 V bias).
SW7: Selects AC line current transformer burden based on drive current and CT turns ratio (not used on EX2000).
All switches on the DS200DCFBG1BDB must be set according to the application’s voltage and current ratings. For DC2000 and EX2000, SW1–SW6 should be set to the same position. For GF2000/ME2000, SW1–SW4 share one setting, while SW5 and SW6 may differ.
Connector Pin Functions on DS200DCFBG1BDB
The DS200DCFBG1BDB uses multiple connectors for power input, signal I/O, and control. Key connectors include:
1PL: Interface to SDCC/LDCC board – contains VCO outputs (FIN0, FIN1, FIN2, FIN4, FIN5, FIN6, FIN7, FIN8), enable signals (/ENFWD, /ENREV), SCR firing controls (/FF1, /FF2), and system reset (/RST1).
2PL: Supplies +5 V, ±15 V, ±24 V, DCOM, and /PSEN signal to NTB/3TB, STBA, SLCC, and SDCC/LDCC boards.
4PL: 115 V ac output (fused/unfused) and MA pilot relay (K2) contacts.
5PL: Gate pulse outputs to PCCA Power Connect Card (A1F to A6F, A1R to A6R, plus P24).
1CPL: ACCT current inputs from SHVI/SHVM board.
MACPL: 24 V dc FET outputs for MD contactor drivers.
Stab terminals: V1, V2, V3 (AC line voltages), P1A/P2A (DC bridge voltage), VM1A/VM1B (motor armature), VM2A/VM2B (motor #2 armature).
Refer to GEI-100028C, Tables 6 through 22, for complete pinout details.
Protection and Status Indication
The DS200DCFBG1BDB protects downstream circuits with three fuses:
FU1 (1/2 A, 2AG) – Protects 115 V ac output. When blown, neon lamp LT1 lights.
FU2 (7 A, 2AG) – Protects +24 V, +15 V, and +5 V dc lines. When blown, red LED CR51 lights.
FU3 (7 A, 2AG) – Protects -24 V and -15 V dc lines. When blown, red LED CR55 lights.
The /PSEN signal (on 2PL-1) goes low when +5 V dc is in regulation; if +5 V goes out of regulation, /PSEN goes high and triggers a microprocessor reset on the SDCC/LDCC board.
Replacement Procedure for DS200DCFBG1BDB
When replacing a DS200DCFBG1BDB, follow these steps (per GEI-100028C):
Turn off all power to the drive and wait several minutes for capacitors to discharge. Verify no voltage present.
Open cabinet door and access the board carrier (DCFB board is behind the drive control card).
Release lock tabs and tilt the front board carrier forward.
Disconnect all cables (ribbon cables with pull-tabs or gentle side pulling).
Release plastic snaps and remove the old DS200DCFBG1BDB.
Critical: Set all jumpers and DIP switches on the new DS200DCFBG1BDB exactly as they were on the old board. Use Tables 1 and 2 of GEI-100028C for revision differences.
Install the new DS200DCFBG1BDB onto the board carrier and secure with snaps.
Reconnect all cables.
Adjust EE parameter EE.574 (VFB0FS) – voltage feedback offset – using a programmer board, ST2000, or GE Control System Toolbox.
Close cabinet and restore power.
EE Parameter Adjustment for DS200DCFBG1BDB
After installing a DS200DCFBG1BDB, the voltage feedback offset parameter EE.574 (VFB0FS) must be adjusted. The method depends on the application (DC2000, CB2000, EX2000, FC2000, GF2000, ME2000, or AC2000 IGBT drive). Refer to the applicable drive instruction book for the detailed adjustment procedure.
Warranty and Support for DS200DCFBG1BDB
GE Industrial Control Systems provides warranty terms as detailed in the “Terms and Conditions” brochure. Only fuses FU1, FU2, and FU3 are user-replaceable on the DS200DCFBG1BDB. If any other component fails, the entire DS200DCFBG1BDB must be replaced as a unit.
For replacement boards or service assistance, contact your nearest GE Service Office and provide:
GE requisition or shop order number
Equipment serial number and model number
Board number: DS200DCFBG1BDB and full description
Why Choose DS200DCFBG1BDB for Your Drive System?
The DS200DCFBG1BDB offers field-proven reliability, comprehensive monitoring, and flexible configuration. Its ability to work across multiple drive platforms (DC2000, EX2000, ME2000, etc.) makes it a versatile choice for industrial motor control upgrades or repairs. With built-in diagnostics, visual fuse indicators, and testpoints, troubleshooting the DS200DCFBG1BDB is straightforward for trained technicians.
