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Phone: +86 16626708626Description
Key Technical Specifications
- Manufacturer: General Electric
- Model Number: DS200TCTGG1AFF
- Series: Mark V Speedtronic
- Product Type: Simplex trip board
- Function: Emergency shutdown and trip protection
- Relays: 21 plug-in relays
- Connectors: 3 x 50-pin connectors, 2 x 12-pin connectors
- Connector IDs: JLY, JLX, JLZ on the 50-pin interface
- Application: Gas turbine control systems
- Platform Compatibility: GE Mark V rack systems
- Condition: New Surplus or tested replacement, depending on stock
- Availability: Legacy inventory, limited supply
Product Introduction
GE DS200TCTGG1AFF is a Mark V simplex trip board used in GE turbine control systems. It handles emergency shutdown and trip protection functions inside the Speedtronic rack.
This card is usually bought as an exact replacement, not a generic spare. Match the suffix, connector layout, and cabinet wiring before ordering, because a near-match can still create a trip circuit fault.
- DS200TCTGG1AFF
- DS200TCTGG1AFF
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Trip circuit will not reset | Relay failure or board logic fault | ✅ High | Check relay status and inspect fault history in the control cabinet | Replace after confirming external trip inputs are normal |
| Emergency shutdown signal stuck active | Bad relay contact or wiring issue | ✅ High | Measure continuity across the trip path and compare to the old board | Verify wiring before replacing the card |
| No response from trip board | Loss of rack power or failed board | ✅ High | Measure supply voltage at the rack and inspect board LEDs | Check power first, then swap the board if voltage is correct |
| Intermittent nuisance trips | Loose connector or oxidized contacts | ✅ High | Reseat board and inspect connector pins under light | Clean contacts and retest before condemning the card |
| Other rack cards also fault | Power supply or backplane issue | ❌ Low | Check cabinet power rails and shared fuses | Do not blame this board until the rack supply is verified |
| Wrong alarm after replacement | Suffix mismatch or wiring mismatch | ✅ High | Compare the full model number and connector mapping | Use the exact suffix and verify terminal mapping |
Contact technical support with photos, fault codes, and cabinet logs if the issue is still unclear.
Frequently Asked Questions
Q: Is DS200TCTGG1AFF a direct replacement for every Mark V trip board?
A: No. The suffix and connector layout matter. GE Mark V parts often look similar but are not interchangeable without verification.
Q: Can I hot-swap this board?
A: No. Shut the system down first. Trip boards are not the place to experiment with live removal.
Q: What makes this board different from a regular control card?
A: It is a simplex trip board with relay-based protection functions, so it sits in the shutdown path, not just the control path.
Q: What condition should I expect?
A: Usually New Surplus or tested replacement, depending on stock. Surplus pricing is lower because it is legacy inventory, not current OEM production.
Q: What should I check before ordering?
A: Match the full part number, suffix, connector count, and wiring diagram. Take a photo of the old board before removal.
Q: Why would this board fail when the rest of the rack looks fine?
A: The trip circuit can fail on a single relay, bad contact, or connector issue even if the rest of the cabinet looks normal.
Q: Is this still in active OEM production?
A: No. It is a legacy Mark V part, so availability depends on surplus and tested stock.
