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GE IS200TPROS1C｜Safety Protection Terminal Board｜
The TPRO security protection terminal board is a safety-critical interface designed for the GE Speedtronic Mark VI turbine control system. It is used in simplex safety logic architectures to monitor key emergency parameters such as turbine overspeed, overtemperature, and overpressure, and to reliably trigger safety shutdown and interlock actions.
The board works in conjunction with Mark VI PPRO I/O modules, providing signal access, conditioning, and isolation for protection-related field signals in gas and steam turbine applications.
Core Functions
Monitoring of critical turbine protection parameters
Emergency condition detection and safety shutdown (trip) interlock triggering
Signal interface and conditioning for PPRO protection I/O modules
Supports emergency stop (ESD) logic in safety circuits
System Compatibility
GE Speedtronic Mark VI Gas / Steam Turbine Control System
Compatible with simplex security logic configurations
Installation & Mechanical Specifications
Installation method: Cabinet panel mounting
System compatibility: Mark VI system I/O rack
Protection level: IP20 (installed inside control cabinet)
Terminal configuration:
Terminal blocks TB1–TB4
Includes voltage transformer (PT) interfaces
Suitable for speed, temperature, and pressure signal wiring
PCB protection: Three-proof conformal coating
(moisture-proof, anti-mold, anti-salt-spray)
Weight: approx. 1.5 kg
Safety Level
Adapted to SIL 2 safety circuits
Supports emergency stop (ESD) and turbine protection logic
Key Technical Parameters
Supported Input Types
Speed signals
Temperature signals
Pressure signals
Voltage transformer (PT) inputs
Associated I/O Module
Compatible with Mark VI PPRO I/O modules, such as:
IS200PPROH1C and equivalent models
Voltage Input (PT)
Compatible with 120 VAC / 240 VAC
Suitable for bus and generator voltage monitoring
Speed Signal Input
Magneto-electric speed sensor input
Frequency range: 0–10 kHz
Temperature Signal Input
Thermocouples: Type K / Type J
RTD / Thermistor: Pt100
Response Performance
Emergency stop response time: ≤ 5 ms
Power Supply
Powered via system backboard 24 V DC logic supply
Isolation & Anti-Interference
Signal and power isolation
Channel-group electrical isolation
High resistance to common-mode interference and electrical noise
Environmental Conditions
Operating temperature: –30 °C to +65 °C
Relative humidity: 5% to 95%, non-condensing
Typical Applications
Turbine overspeed protection
Overtemperature and overpressure protection loops
Emergency shutdown (ESD) systems
GE IS200TDBTH6ACD｜Safety Protection Terminal Board｜
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By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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