Description
Key Technical Specifications
- Part Number: IS200VAICH1DAA
- Brand: GE
- System: Mark VI / EX2100 turbine control
- Product Type: Analog input/output board
- Inputs: 20 analog inputs
- Outputs: 4 analog outputs
- Architecture: Supports simplex and TMR applications
- Terminal Board Pairing: Ten inputs and two outputs per terminal board
- Weight: About 0.8 kg
- Dimensions: About 16 cm x 16 cm x 12 cm
- Catalog Note: VME analog I/O card
- Condition Note: Often sold as new surplus or refurbished in the secondary market
Product Introduction
GE IS200VAICH1DAA is a Mark VI analog input/output board used in GE turbine control systems. It accepts analog field signals, processes them through the VME-based control architecture, and supports both simplex and triple modular redundant setups. This board is used in excitation and turbine control cabinets where stable analog signal handling matters.
The main buying point is exact system match. Confirm the terminal board pairing, cabinet revision, and signal type before installation, because the VAIC family uses specific wiring and jumper settings for voltage, 4-20 mA, and output configuration.
- IS200VAICH1DAA
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to This Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No analog inputs reading | Missing power, loose terminal wiring, wrong jumper setup | ✅ High | Measure supply, then verify input signal at the terminal board | Check wiring and jumpers before replacing the board |
| Outputs stuck at one value | Output circuit issue, load problem, or configuration error | ✅ High | Measure output current or voltage at the terminals | Confirm load side and control settings first |
| One channel noisy or unstable | Shielding problem, grounding issue, damaged input path | ✅ High | Inspect shield termination and compare with another channel | Fix wiring and grounding before condemning the board |
| Board not seen by controller | Wrong rack, cabling problem, or incompatible revision | ✅ High | Verify board seating and compare part number to the removed unit | Confirm exact match and rack compatibility |
| Works in simplex but not TMR | TMR configuration mismatch or rack channel issue | ✅ High | Check all three channel racks and configuration data | Verify simplex/TMR setup against site documentation |
| Input values drift over time | Environmental noise, weak field signal, or aging electronics | ✅ Medium | Compare against a known-good reference signal | Test with a simulator before replacement |
Contact technical support with photos of the card, terminal board, wiring labels, and diagnostic logs if the fault remains unclear.
Frequently Asked Questions
Q: What does GE IS200VAICH1DAA do?
A: It is a GE Mark VI analog input/output board used in turbine control systems. It handles 20 analog inputs and 4 analog outputs through the VME control architecture.
Q: Is this board used with a terminal board?
A: Yes. The VAIC board connects to a terminal board, and each terminal board handles 10 inputs and 2 outputs.
Q: Does it support redundant systems?
A: Yes. Listings state that it supports both simplex and triple modular redundant applications.
Q: Is this part still produced by GE?
A: The secondary market listings suggest it is typically sold as stock, new surplus, or refurbished rather than as current factory production. Buyers should confirm the actual condition before purchase.
Q: What are the main size and weight details?
A: Common listing data puts it at about 16 cm x 16 cm x 12 cm and about 0.8 kg, although seller listings can vary slightly.
Q: What should I check before installation?
A: Confirm the exact part number, terminal board pairing, jumper settings, and whether your site uses simplex or TMR. Also verify the analog signal type, because the input setup depends on whether the circuit uses voltage, 4-20 mA, or another configured range.amikonplc.
Q: Is it hot-swappable?
A: No. Treat it as a power-off replacement unless your site documentation explicitly allows live insertion. Pulling it live can damage the board or the VME rack.


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