Configured for power conversion and signal feedback execution in EX2000 platforms, the GE Fanuc DS200DCFBG1BLC (DS200DCFB DC Power Supply Feedback Board) provides direct physical/electrical execution.
Suffix Breakdown & Model Matrix
The part number DS200DCFBG1BLC defines the functional design level and factory revision history:
- DS200: Standard GE Mark V / EX2000 system board designation.
- DCFB: Functional acronym designating the DC Power Supply Feedback Board.
- G1: Group 1 manufacturing grouping.
- B: 1st functional design revision rating.
- L: Secondary manufacturing process designator.
- C: Artwork design revision grade.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DS200DCFBG1BLC |
| Brand | GE Fanuc |
| Origin | USA |
| Dimensions | EX2000 Panel Form Factor |
| Operating Temp | -10 to +70 deg C |
| Power Consumption | 50 W / 100 W / 250 W Output Profiles |
| Input Voltage | 38 V AC / 115 V AC / 100-240 V AC (50/60 Hz) / 24 V DC |
| Output DC Rails | +5 VDC (4 A), +/-15 VDC (0.8 A), +/-24 VDC (+24 V at 3 A, -24 V at 1 A) |
| Ripple & Noise | Less than or equal to 50 mV |
| Circuit Protection | Fuses FU1 (0.5 A, 2AG), FU2 (7 A, 2AG), FU3 (7 A, 2AG) |
| Blown Fuse Indicators | LEDs CR51, CR55 (FU2/FU3) and Neon LT1 (FU1) |
Backplane Bus Communication & Firmware Compatibility
The GE Fanuc DS200DCFBG1BLC delivers regulated control power and power supply status feedback directly to the drive controller backplane. The board generates a /PSEN regulation signal routed through connector 2PL to the Drive Control Card (SDCC/LDCC). When the +5 VDC output remains in regulation, /PSEN maintains a TTL low state; an out-of-regulation event forces /PSEN high, triggering an immediate microprocessor reset on the SDCC/LDCC card to protect system logic. Backplane power rail stability is preserved through galvanically isolated +5 VDC and +/-15 VDC circuits dedicated to armature current feedback.
Frequently Asked Questions
Q: What action does the DS200DCFBG1BLC take if the +5 VDC control power rail loses regulation?
A: The board transitions the /PSEN signal on connector 2PL to a TTL high state, which generates a microprocessor reset on the connected Drive Control Card (SDCC/LDCC) to halt execution during unstable power conditions.
Q: How are blown protection fuses identified on the DS200DCFBG1BLC board?
A: Fuse FU1 (115 V AC rail) uses neon light LT1 for blown indication. Fuses FU2 and FU3 (isolated DC feedback rails) utilize LEDs CR51 and CR55 respectively to signal an open fuse state.
Q: What external load current is available from the +/-15 VDC power supply rails?
A: While the +/-15 VDC supplies are rated for 0.8 A total output each, up to 0.25 A per rail is available for external auxiliary loading.
Field Installation Guidelines
- Power Isolation: Ensure primary supply power from the Control Power Transformer (CPT) and external DC busses are completely de-energized and locked out prior to handling the board.
- ESD Protection: Always ground yourself using an ESD wrist strap attached to unpainted enclosure metal when installing or servicing the board assembly.
- Connector Latching: Securely seat multi-pin connectors (including 2PL) straight onto board headers. Avoid offset insertion to prevent pin distortion and intermittent control signals.
- Fuse Replacement: Replace blown protection fuses only with identical 2AG fast-acting ratings: FU1 (0.5 A, 250 V), FU2 (7 A, 250 V), and FU3 (7 A, 250 V).
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