The GE DS200RTBAG2AFB Relay Terminal Board is a critical interface module within the Speedtronic Mark V DS200 Series turbine control system.
Here are its key functions and features:
1. Signal Interface & Relay Control
Acts as a hardwired interface between the Mark V control system and field devices (sensors, actuators, alarms).
Provides relay-based signal routing for discrete I/O (digital on/off signals) in turbine protection and control circuits.
2. Isolation & Protection
Offers electrical isolation between low-voltage control signals (e.g., 24VDC logic) and high-power field devices (e.g., 120VAC/VDC outputs).
Protects sensitive Mark V electronics from voltage spikes/noise in industrial environments.
3. Redundant Configuration Support
Designed for integration with Triple Modular Redundant (TMR) systems in Mark V turbines.
Enables fail-safe operation through redundant signal paths for critical shutdown circuits.
4. Terminal Block Connectivity
Features screw-type terminal blocks for secure field wiring connections.
Simplifies maintenance with clearly labeled I/O points matching Mark V schematics.
5. Diagnostic Indicators
Includes LED status lights for relay state monitoring (energized/de-energized).
Facilitates quick troubleshooting during system checks.
6. Robust Industrial Design
Built to withstand high temperatures, vibration, and EMI typical in turbine environments.
Compact form factor for installation in Mark V enclosures.
7. Typical Applications
Turbine Protection Systems: Emergency shutdown (ESD) circuits, overspeed protection.
Auxiliary Control: Lube oil pumps, cooling fans, valve actuators.
Alarm Annunciation: Fire detection, vibration thresholds.
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