DS200STBAG1 GE

Technical Parameters

Based on the Mark V DS200 series specifications, the DS200STBAG1 features the following key parameters:

• Primary Function: Terminal/Termination Board for Field Wiring

• Terminal Count: 96 termination points (organized into 8 channels per section)

• Connection Type: Screw-type terminal blocks (accepts 0.5-2.5mm² wire, AWG 20-14)

• Signal Types Supported: Analog (thermocouple, RTD, 4-20mA, 0-10V), Discrete (dry contact, 24V DC), and Power Supply connections

• Channel Mapping: 8 configurable channels per section (analog, discrete, or mixed)

• Voltage Rating: 300V AC/DC maximum

• Current Rating: 10A per terminal (maximum)

• Isolation: No active isolation (passive board); relies on connected modules for isolation

• Form Factor: Single-slot 6U Eurocard (160mm), 96-pin DIN connector to backplane

• Mounting: Direct plug-in to Mark V rack; front-facing screw terminals for field wiring

• Operating Environment: 0°C to 60°C ambient temperature, 5% to 95% non-condensing humidity

• Labels: Clearly marked terminal designations (CH1+, CH1-, CH1GND, etc.) for easy identification

• Compliance: UL recognized, CE marked

Advantages and Features

The DS200STBAG1 offers several distinctive advantages for Mark V system field wiring and maintenance:

1. High-Density Termination: With 96 termination points, the DS200STBAG1 provides a compact, organized interface for numerous field connections, reducing the need for additional terminal boards and saving rack space.

2. Clear Labeling: Each terminal on the DS200STBAG1 is clearly marked with channel and function designations (e.g., CH1+, CH1-, CH1GND), simplifying installation, troubleshooting, and maintenance.

3. Screw-Type Terminals: The DS200STBAG1 uses reliable screw-type connections that accommodate a wide range of wire sizes (0.5-2.5mm²), ensuring secure, long-term field connections.

4. Passive Design: As a passive board, the DS200STBAG1 contains no active electronics, making it highly reliable and immune to electronic failures. Field wiring issues are the primary concern, not board-level faults.

5. Direct Rack Integration: The DS200STBAG1 plugs directly into the Mark V backplane, providing a clean, organized interface between field wiring and the control system.

6. Modular Design: The DS200STBAG1 works seamlessly with signal conditioning boards (e.g., SSBAG1, SSBCG1A) and output boards (SSRAG1A) to complete the signal chain.

7. Hot-Swap Capable: Supports live insertion and removal (with proper ESD protocols), allowing maintenance or rewiring without powering down the entire turbine.

Application Cases in Application Fields

The DS200STBAG1 is deployed across multiple heavy-industrial sectors:

• Combined Cycle Power Plants: A 750MW CCPP facility uses multiple DS200STBAG1 boards to terminate all field wiring—exhaust thermocouples, pressure transmitters, valve position feedback, and discrete limit switches—before connecting to the Mark V signal conditioning modules.

• Steam Turbine Retrofits: During a control system refurbishment, a 300MW coal-fired station installed the DS200STBAG1 to centralize field wiring, simplifying cabinet design and reducing installation time by 20%.

• Gas Pipeline Compressor Stations: The DS200STBAG1 provides termination points for suction/discharge pressure transmitters, temperature sensors, and valve control wiring, enabling organized, maintainable field connections.

• Offshore Oil Platforms: The screw-type terminals of the DS200STBAG1 have proven reliable in high-vibration offshore environments, preventing loose connections common with spring-type terminals.

Comparison with Competing Products

Selection Suggestions and Precautions

Before purchasing or installing the DS200STBAG1:

• Verify Exact Model: Ensure the board is precisely DS200STBAG1, not DS200STBAG1A, DS200STBAG1B, or other variants. Different suffixes may have different terminal configurations, channel counts, or connector layouts.

• Confirm Compatibility: Verify that the DS200STBAG1 pinout and channel mapping match your connected modules (e.g., SSBAG1, SSBCG1A, SSRAG1A).

• Wiring Preparation: Use appropriately sized wires (0.5-2.5mm², AWG 20-14) for the DS200STBAG1 terminals. Strip wires to the correct length (typically 6-8mm) for secure connections.

• Shielding and Grounding: For analog signals, use shielded twisted-pair cables and connect the shield properly (typically at the DS200STBAG1 end only) to minimize noise.

• Cable Management: Route field wiring neatly to avoid stress on the DS200STBAG1 terminal blocks. Use cable ties and wire ducts to organize incoming cables.

• Labeling: Label all field wires before connecting to the DS200STBAG1 to simplify future maintenance and troubleshooting.

• ESD Protection: Use grounded wrist straps during installation to prevent ESD damage to connected active modules.

• Post-Installation Validation:

  • Verify all terminations are mechanically secure (no loose screws).

  • Continuity-check critical signal paths.

  • Confirm correct signal readings at the corresponding conditioning modules.

• Spare Strategy: While the DS200STBAG1 is passive and highly reliable, maintain at least one spare on-site in case of terminal block damage or contact degradation.

• Supplier Qualification: Request visual inspection and mechanical integrity verification of terminals before shipment.

Final Recommendation

For GE Mark V turbine systems requiring organized, high-density field wiring termination, the DS200STBAG1 is the essential interface board. Its 96-point screw-type terminals, clear labeling, and direct backplane integration provide a reliable, maintainable connection between field devices and the control system. Prioritize reputable aftermarket suppliers offering visually inspected and mechanically verified units. Maintain spares on-site, label all field wiring carefully, and perform periodic torque checks to ensure the long-term reliability of your DS200STBAG1 and the entire Mark V control system.