Description
1. Product Title
GE IS200TDBTH6ABC – Discrete TMR Terminal Board
2. Product Overview
The GE IS200TDBTH6ABC is a Triple Modular Redundant (TMR) discrete input/output terminal board from GE’s Mark VI turbine control system series. It provides high-density termination for 24 digital inputs and 12 outputs, interfacing field devices like relays, switches, and solenoids with TMR I/O packs through voted signal processing. This board addresses reliability demands in safety-critical turbine applications by combining robust screw terminals, optical isolation, and fault detection to prevent spurious trips from noise or single failures. The GE IS200TDBTH6ABC ensures continuous operation in redundant architectures, supporting voltages from 24-125 VDC for diverse industrial signaling needs.
3. Technical Specifications
- Brand: GE (General Electric)
- Model: IS200TDBTH6ABC
- Warranty: One Year
- Condition: 100% New & Original
- Channels: 24 inputs / 12 outputs (TMR configuration)
- Voltage Range: 24/48/125 VDC floating inputs
- Connectors: Two 50-pin screw terminal blocks
- Isolation: 2500 Vrms channel-to-channel
- Operating Temp: -40°C to +70°C
- Current Rating: 300 mA per output point
4. Key Features & Benefits
- TMR Signal Voting: Three independent channels vote inputs/outputs, eliminating single-point failures and achieving SIL 3 safety certification for turbine protection.
- Comprehensive Diagnostics: Monitors open circuits, shorts, and disagreements, reporting status to controllers for predictive maintenance.
- Rugged Construction: Vibration-proof terminals and conformal coating withstand harsh power plant conditions including EMI and humidity.
5. Application Scenarios
- Gas Turbine Protection: Terminates trip contacts, flame detection, and starter relays for voted emergency shutdown logic.
- Steam Turbine Control: Interfaces lube oil pumps, turning gear solenoids, and breaker commands in redundant configurations.
- Generator Auxiliaries: Controls excitation contactors and cooling fan relays with fault-tolerant signaling.
6. Frequently Asked Questions (FAQ)
- Q: What is the primary function of the GE IS200TDBTH6ABC?
A: It provides TMR discrete I/O termination for Mark VI systems, handling voted digital signals from field devices to controllers. - Q: Is GE IS200TDBTH6ABC compatible with legacy systems?
A: Yes, it connects to Mark VI TMR packs (RTBX1/RTBX2) and supports upgrades from earlier Speedtronic platforms via standard pinouts
