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3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE |
| Model Number | IS200DSFCG1AEB |
| Series | Mark VIe / DSFC |
| Product Type | Driver Shunt Feedback Card |
| Application | 1000 A and 1800 A PWM source bridges and AC drives |
| Input Range | 0 to 5 VDC or -5 to +5 VDC |
| Input Points | 46 differential, DC-coupled |
| Input Update Rate | 10 ms |
| Accuracy | Less than 0.15% of FSR from 0°C to 45°C |
| Common Mode Suppression | -85 dB DC to 100 Hz |
| Input Overrange Protection | 160 VDC / 180 VAC continuous |
| Weight | 0.8 kg to 1.2 kg, depending on listing source |
| Dimensions | 180 mm x 180 mm x 30 mm |
| Compatibility Note | 1000 A systems use 3 boards; 1800 A systems may use 6 boards |
4. Product Introduction
GE IS200DSFCG1AEB is a Mark VIe driver shunt feedback card used in high-power GE drive and bridge systems. It handles current sensing, fault detection, and isolated gate-drive feedback for PWM source bridges and AC drives.
This board is selected when the drive needs exact feedback behavior and the existing Mark VIe hardware must stay in service. The main buy-before-install checks are board orientation, rack compatibility, and whether the system needs three or six DSFC boards depending on bridge current rating.
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Drive fault at power-up | DSFC board not seated or wrong board orientation | ✅ High | Inspect alignment marks, reseat board, verify the exact suffix | Reinstall with the same orientation as the removed unit |
| Missing current feedback | Open sensor path or failed feedback circuit | ✅ High | Measure input signal at the board, check continuity from bridge to card | Replace only after field wiring is confirmed |
| Spurious fault trips | Noise, grounding, or isolation issue | ✅ High | Check shield grounding, compare cable routing, review fault log | Correct wiring and grounding before replacing |
| One phase reads wrong | Phase-specific DSFC board issue or swapped cabling | ✅ High | Compare readings across phases, trace the wiring pair-by-pair | Verify phase assignment before ordering more parts |
| No board LEDs or no response | No rack power or failed internal supply rail | ✅ High | Measure rack supply voltage at the backplane and board input | Confirm power integrity first |
| Board runs hot | Overload, bad airflow, or internal damage | ✅ High | Check cabinet temperature after 15 to 30 minutes of operation | Verify cooling and load current before replacement |
If you are stuck, contact technical support with photos, fault logs, and the removed board’s orientation marks.
- IS200DSFCG1AEB
- IS200DSFCG1AEB
6. Frequently Asked Questions
Q: Is GE IS200DSFCG1AEB still available?
A: Usually yes, but mostly as surplus or replacement stock. It is not a current-production part in normal industrial supply channels.
Q: Is this a direct replacement for the same part number?
A: Yes, if your original part number is IS200DSFCG1AEB. Still, verify rack revision, board orientation, and system current rating before installation.
Q: What does this board actually do?
A: It handles shunt feedback, fault detection, and isolated IGBT gate-drive circuits for GE Mark VIe drive systems. In plain terms, it helps the drive measure and control high-power bridge behavior.
Q: How many boards does a system need?
A: A 1000 A source bridge or driver needs three DSFC boards, one per phase. An 1800 A system may need six boards, two series boards per phase.
Q: Can I install it without checking the old board first?
A: I would not. Take a photo of the original orientation, connector positions, and jumpers before removal. On these cards, a wrong orientation or cabling mistake wastes time fast
Q: Why is this part cheaper than buying from the OEM?
A: Because it is typically surplus inventory from a discontinued or legacy system. Lower price does not mean lower criticality, so test status and exact part match still matter.
Q: What usually causes false “bad card” calls?
A: Connector issues, phase wiring mistakes, grounding noise, and upstream bridge problems are common. I would check those before condemning the board itself.
