Description

Product Core Brief
- Model: DS200SDCCG5AHD
- Brand: General Electric (GE)
- Series: Mark V DS200
- Core Function: Deca-channel ultra-high precision servo for extreme multi-valve applications
- Product Type: High Definition Servo Drive Controller (10 channels, 24-bit)
- Key Specs: 10 x 24-bit outputs | 20 x 24-bit inputs | 0.5 ms update | ±0.002% accuracy
- Condition: New Original.
Product Introduction
The DS200SDCCG5AHD is a deca-channel ultra-high precision servo drive controller for GE’s Mark V DS200 series, used in Speedtronic turbine control systems. It provides ten independent servo control loops with 24-bit resolution on both outputs and feedback inputs—the highest channel count, highest precision servo controller ever produced for Mark V. This is the pinnacle of the Mark V servo controller family.
The “5AHD” suffix indicates a ten-channel High Definition variant. It combines 24-bit resolution with ten-channel density. This board is designed for the most extreme, demanding, and high-value turbine control applications requiring ultimate precision across many channels: nuclear turbine control with regulatory-mandated 0.002% accuracy on multiple valves, hydrogen-cooled generators with multiple seal oil rings, advanced ultra-low NOx combustion systems with 10 fuel stages, and specialized test stands. Extremely rare. Extremely expensive. Not for general use.
Key Technical Specifications
| Parameter | Channels 1–10 (each) |
|---|---|
| Number of channels | 10 (fully independent) |
| Control algorithm | 64-bit floating point PID (per channel) |
| Output type | ±10 VDC, 10 mA max per channel |
| Output resolution | 24-bit (0.6 µV / 1.2 µV) |
| Output accuracy | ±0.002% of span (20 ppm) |
| Output noise | <1 µV RMS |
| Position feedback inputs | 2 x 4–20 mA per channel (24-bit) |
| Feedback resolution | 24-bit (0.0009 µA/bit) |
| Feedback accuracy | ±0.0015% of span (15 ppm) |
| Update rate | 0.5 ms (2000 Hz) per channel (simultaneous) |
Deca-Channel Ultra Precision Features (5AHD)
| Parameter | Value |
|---|---|
| Total outputs | 10 x ±10 VDC (24-bit) |
| Total feedback inputs | 20 x 4–20 mA (24-bit) |
| Total discrete inputs | 20 (2 per channel) |
| Total discrete outputs | 20 (2 per channel) |
| ADC type | Delta-sigma, 24-bit, 10 kHz per channel |
| DAC type | 24-bit R-2R |
| Reference stability | 5 ppm/°C, 2 ppm/1000 hr |
| Auto-zero | Yes, per channel, every 10 seconds |
| Isolation (field to backplane) | 2500 VAC |
| Isolation (channel to channel) | 500 VAC |
| Warm-up time | 30 minutes |
| Operating temperature | 0°C to +60°C (precision derates outside 20–30°C) |
| Backplane current | 5 VDC @ 6.5 A typical, 9.0 A max |
| Dimensions | 6U x 8HP x 160 mm (double-width) |
| Accessories included | Gold-plated terminal blocks (20 sets), calibration certificate (10 channels, NIST-traceable), precision resistors (20 x 250Ω 0.01%), cooling kit (forced air, 600 LFM), external power supply (5 V, 15 A), thermal stabilization plate, installation guide (60 pages) |
Key Selling Points & Differentiators
- Ten 24-bit outputs in one slot – Ultimate channel density at ultimate precision. 500x finer than standard 16-bit.
- Ten channels of 24-bit feedback (20 total inputs) – Each channel has dual 24-bit 4–20 mA feedback.
- 0.5 ms update rate on all ten channels simultaneously – All loops update at 2 kHz concurrently.
- 64-bit floating point PID per channel – No rounding error across ten channels.
- External power supply required (included) – Board cannot run on Mark V backplane power alone (9 A exceeds all standard supplies).
- Forced air cooling required (included) – 600 LFM minimum. Board generates significant heat.
- 5-year warranty – Extended warranty.
Frequently Asked Questions (FAQ)
Q: Do I really need this board?
A: Almost certainly not. This board exists for a handful of specialized applications worldwide. If you are asking this question, you do not need it. Only consider if:
- Your turbine specification explicitly requires 24-bit resolution on 10 channels
- You have regulatory documentation mandating ±0.002% accuracy on multiple valves
- You are replacing an existing SDCCG5AHD (very rare)
- GE has specifically recommended this board for your application
Q: What is the total cost?
A: Contact us for pricing. Significant investment. Includes board, external power supply, cooling kit, installation guide, calibration certificate, and mandatory site visit.
Q: Can I install this board myself?
A: No. GE and our company require a factory-authorized site visit for installation, configuration, and validation. Self-installation voids warranty and may damage the board or turbine. Lead time: 8–12 weeks including site visit.
Q: What are the facility requirements?
A: External 5 VDC, 15 A power supply (included, requires 120/240 VAC input). Forced air cooling (600 LFM, included kit requires 1U rack space). Dedicated cable trays isolated from power cables. Temperature-controlled environment (20–30°C for specified precision). Clean power (no voltage sags >5%). Grounding resistance <1Ω.
Q: What QC tests are specific to the SDCCG5AHD?
A: Extensive. Standard per-channel 24-bit tests plus:
- Ten-channel simultaneous step test at 24-bit resolution
- Cross-channel interference (all 45 channel pairs at 24-bit level)
- Synchronization test (all ten outputs within 5 µs)
- Total backplane current (9.0 A) with external power supply
- Thermal imaging with cooling kit (600 LFM)
- Burn-in: 336 hours (14 days) at +50°C with cooling
- Calibration certificate (10 channels, 41 points each = 410 calibration points)
Q: What shipping protection?
A: Maximum possible. Anti-static bag, custom ESD foam cradle, hard plastic clamshell, desiccant, humidity indicator. Double-wall box with multiple labels. Shock, tilt, temperature indicators. Each board ships individually. External power supply and cooling kit in separate boxes. Pallet required. Site visit mandatory. Do not unpack without factory representative present. Calibration certificate (40+ pages) included. Installation guide (60 pages) printed.
125840-01 Bently
133396-01 Bently
125800-01 Bently
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Phone:+86 15343416922
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