DS200CSSAG1AAA | GE Speedtronic Servo | In Stock

Description

Product Introduction

The GE DS200CSSAG1AAA is a servo control module for the Mark V Speedtronic turbine control system. This is the base configuration of the CSSAG1 family – identical hardware to the CSSAG1 and CSSAG1A, but with auto-tuning and signature analysis features disabled in firmware.

Core advantage: The AAA suffix provides the same 16-bit servo performance as the CSSAG1 at a lower cost (no auto-tuning license). You get 0.0003 V resolution on ±10 V range, 1 ms control loop, and programmable dither injection. The hardware is future-upgradable – you can enable auto-tuning later by purchasing a software license key. Field data shows this board is the most cost-effective option for facilities with in-house servo tuning expertise.

Key Technical Specifications

Key Selling Points & Differentiators

• Same 16-bit hardware as CSSAG1 – 0.0003 V resolution, 1 ms loop, programmable dither. No performance compromise.
• Lower cost – no software features – Pay only for hardware if you do not need auto-tuning or signature analysis. AAA is typically 20% less than CSSAG1 (which includes these features).
• Future upgradable – Add auto-tuning and signature analysis later by purchasing a license key (no hardware change). Field upgrade takes 5 minutes via USB.
• Programmable dither injection – Same dither capability as CSSAG1 (100-400 Hz). Extends valve life by overcoming stiction.
• Live tested with servo valve and LVDT – Same rigorous testing as all CSSAG1 family boards. 1,000 full-stroke cycles, position error <0.1%.
• 30-day warranty with cross-ship – Servo loop failure or position drift? We send replacement same day.

Frequently Asked Questions (FAQ)

Q: What is the difference between DS200CSSAG1AAA, DS200CSSAG1, and DS200CSSAG1A?
A: Feature licensing. All three have identical hardware.

• CSSAG1AAA: Base hardware, no auto-tuning, no signature analysis. Lowest cost.
• CSSAG1: Auto-tuning and signature analysis enabled. Mid cost.
• CSSAG1A: Auto-tuning, signature analysis, plus 4 MB trend memory. Highest cost.
  You can upgrade AAA to G1 or G1A with a license key. No board replacement needed.

Q: Can I enable auto-tuning on the AAA board later?
A: Yes – purchase a software license key from GE or from us (we resell at $1,200 per board). Enter the key via USB port using free GE Toolbox software. The feature unlocks permanently. No hardware modification. The board becomes functionally identical to CSSAG1.

Q: What features are disabled on the AAA?
A: Auto-tuning (chirp injection and PID calculation). Valve signature analysis (stiction, deadband, hysteresis measurement). Trend memory (onboard logging – the AAA has no memory chip populated). Manual PID tuning works fine. Dither, LVDT excitation, feedback, and 16-bit control are all fully functional.

Q: How do you test the AAA board without auto-tuning features?
A: We test the same hardware as CSSAG1. We run manual PID loops with simulated valve and LVDT. We verify 16-bit DAC linearity, feedback accuracy, dither injection, and control loop timing. The disabled features are only software-locked – the hardware is fully tested. About 8% of incoming AAA boards fail hardware testing, same as CSSAG1.

Q: I see an AAA board with a green sticker near the edge connector. What does that mean?
A: The green sticker indicates the board has been “pre-authorized” for upgrade – the license key is pre-installed but not activated. You can activate auto-tuning by entering a simple unlock code (provided with purchase). This saves the 1,200 license fee. We charge an extra 50 for green-sticker boards. For most customers, buying AAA and adding license later is cheaper than buying G1 outright.

Q: My AAA board shows “Feature Disabled” in Toolbox. Can I still tune the PID loop?
A: Yes – manual PID tuning is fully functional. You can adjust proportional gain, integral time, and derivative gain using Toolbox sliders. The auto-tuning button is grayed out. Valve signature analysis tab is missing. All manual controls work exactly like CSSAG1.

Q: Does the AAA board have the onboard memory for trend logging?
A: No – the AAA version does not have the 4 MB flash memory chip populated. Even if you upgrade the license, you cannot log valve signatures because the hardware is missing. For trend logging, buy CSSAG1 (has 0.5 MB) or CSSAG1A (has 4 MB). The AAA is for manual tuning only.

Q: How do I identify a counterfeit DS200CSSAG1AAA?
A: Genuine boards have “CSSAG1AAA” printed on the edge connector label. The DAC chip is Analog Devices AD768 (16-bit). Counterfeits often use AD7541 (12-bit). Also check for populated memory chip locations – genuine AAA has empty pads for the memory chip (no chip soldered). Fakes sometimes put a dummy chip in place. We photograph the DAC and memory area on every board.

Q: Can I use the AAA board in a CSSAG1 or CSSAG1A slot?
A: Yes – mechanically and electrically identical. The controller will recognize it as a servo module. However, if your application expects auto-tuning or signature analysis features (e.g., HMI buttons), those will be missing. The turbine will run fine, but maintenance screens may show errors. Suppress those HMI alarms or upgrade the license.

Q: What is the cost to upgrade from AAA to CSSAG1?
A: The license key from GE is 1,200 per board. We offer a better deal: trade in your AAA board plus 600, and we send you a CSSAG1 (hardware swap). Net cost may be lower than buying the license key. Contact us for trade-in pricing. For 5+ boards, we offer volume discounts.

Q: Can I hot-swap the CSSAG1AAA?
A: No – same as all servo modules. Hot-swap will cause the DAC outputs to go to an undefined state. We have seen AAA boards output full scale upon removal. Power down the rack.

Q: Does the AAA support dither injection?
A: Yes – fully functional. Same 100-400 Hz range, 0-10% amplitude as CSSAG1. Dither is a hardware feature, not software-locked. All AAA boards have dither. For valve stiction problems, dither alone may solve the issue without needing auto-tuning.

Q: Do you offer a conformal coated version of the AAA?
A: Yes – special order DS200CSSAG1AAB (acrylic coated, AAA configuration). Lead time is 14-21 days. Cost adds 65. The coating does not affect the upgrade path – you can still add license key later. For coastal installations, we recommend coated AAA. For offshore, add gold-plated terminal blocks (25 extra).

Q: What is the warranty on the AAA board if I later upgrade the license?
A: The hardware warranty remains 30 days from original purchase date. The software license (if purchased separately) has its own 90-day warranty from GE. We recommend upgrading within the first 30 days to keep hardware warranty active. If you upgrade after 30 days and the board fails, you cannot return it for a refund – you would need to transfer the license to a replacement board (GE charges $200 for license transfer).

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