IS200TBAOH1A GE

Product Parameters

Advantages & Key Features

• High Channel Density: 16 analog outputs in a single VME slot—double the density of competing 8-channel modules, ideal for turbines with multiple control valves and actuators.

• Flexible Output Configuration: Each channel supports 4–20 mA or 0–10 V outputs via GE ToolboxST software, accommodating a wide range of field actuators.

• High Resolution: 16-bit DAC provides precise control for critical turbine parameters such as fuel valve position and steam bypass control.

• Programmable Filtering: Onboard low-pass filter (1–50 Hz) smooths output signals to reduce mechanical wear on actuators.

• Comprehensive Diagnostics: Real-time open-circuit, short-circuit, and over/under-range monitoring per channel enable predictive maintenance and fault detection.

• Short-Circuit Protection: Each output is protected against short circuits and overcurrent conditions, safeguarding both the board and field devices.

• ToolboxST Integration: Full configuration, calibration, and diagnostics via GE ToolboxST.

• Drop-In Replacement: Direct replacement for earlier GE analog output terminal boards.

Application Fields

• Gas & Steam Turbines (GE Frame 6B/7EA/9E/HA): Fuel gas control valves, steam admission valves, inlet guide vane positioners, bypass valves, actuator position control, and variable speed drive control.

• Combined Cycle Plants: HRSG feedwater control valves, bypass valve positioning, steam temperature control actuators.

• Compressor Stations: Anti-surge valve control, recycle valve positioning, variable speed compressor control.

• Aeroderivative Turbines: Fuel control actuators, variable inlet guide vanes, bleed valve control.

Comparison with Competing Products

Key Advantage: IS200TBAOH1A provides double the channel density (16 vs. 8) of competing analog output modules, with flexible output configuration, 16-bit resolution, and comprehensive diagnostics—reducing rack space and simplifying system design for turbine control applications.

Selection Guidelines & Recommendations

• Output Type: Configure 4–20 mA or 0–10 V per channel in GE ToolboxST to match your field actuators.

• Load Verification: Ensure connected actuators do not exceed the board’s load impedance capability (0–750 Ω for current, > 2 kΩ for voltage).

• Filtering: Use 1–10 Hz filtering for smooth actuator response, 20–50 Hz for faster dynamic control.

• Controller Firmware: Requires Mark VIe processor firmware v6.5 or later.

• Spare Strategy: Keep one spare per turbine; lead times 6–10 weeks.

• Retrofit: Direct replacement—regenerate configuration in GE ToolboxST.

Important Cautions

1. No Hot-Swap: De-energize rack before insertion/removal.

2. Output Polarity: Observe correct polarity for current loops—reverse polarity prevents proper actuator operation.

3. Short-Circuit Protection: While protected, sustained short circuits may cause the board to enter thermal shutdown. Investigate wiring faults promptly.

4. Grounding: Connect AGND to Mark VIe system ground at single star point.

5. Shield Termination: Ground output cable shields only at cabinet end.

6. ESD Handling: Use grounded wrist straps; field repair not possible.

7. Filtering Trade-Off: Higher filtering provides smoother output but introduces signal delay—balance based on actuator response requirements.

8. Channel Mapping: Verify field wiring correctly maps to corresponding channel numbers in GE ToolboxST.

9. Power Supply: Ensure the Mark VIe rack power supply provides adequate current for all active output channels (typically 20 mA per current output × 16 channels = 320 mA max).