Description

IS200TREAH2AED TREA Emergency Trip Terminal Board

Technical Specifications

• Product Model: IS200TREAH2AED
• Brand: GE Vernova (Mark VIe Speedtronic series)
• Warranty: One Year
• Input Voltage: Passive‑active mixed termination board; backplane logic 24 VDC; field contact rating max 250 VAC
• Operating Temperature: ‑30 °C ~ +65 °C cabinet‑mount installation
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: Hardware‑voted trip relay switching ≤15 ms
• Protection Class: IP00 plug‑in rack‑mount PCB; conformal‑coated variant available; cabinet‑only installation
• Accuracy Class: Signal routing & hardware trip‑voting; no analog measurement conversion
• Output Frequency: Not applicable
• Rated Current Range: 5 A per‑channel Form‑C relay contact; total 48 screw‑clamp field terminals, split into two 24‑point barrier blocks
• Communication Interface: Dual high‑density backplane mating connectors for PPRO I/O pack; barrier screw terminals; channel labelling strip
• Supported Protocols: Hardware termination for Mark VIe IONet distributed control; supports simplex, dual‑redundant and TMR 2‑out‑of‑3 voting architectures
• Overload Capacity: MOV transient‑voltage suppression; configurable jumper‑based TMR trip‑voting logic; no onboard field fuses
• Dimensions: 330 mm × 178 mm × 42 mm; weight approx 1.2 kg

Product Overview

The IS200TREAH2AED (TREA) is a turbine emergency‑trip terminal board for GE Mark VIe turbine‑generator control systems. It serves as the physical safety‑signal interface for PPRO I/O pack, terminates emergency stop, hard‑wired trip interlock inputs, and carries TMR‑voted Form‑C relay outputs to drive fuel‑trip solenoids, generator‑breaker trip coils and safety‑annunciation circuits. Hardware jumpers configure simplex or TMR 2‑out‑of‑3 voting to match system safety‑design.

This board addresses critical turbine‑safety challenges: independent hard‑wired trip path separate from software logic, consolidated high‑density safety‑loop termination, and drop‑in spare‑part compatibility for legacy Mark VIe retrofit projects. Metal‑oxide varistors suppress inductive‑load switching transients from trip‑coil circuits. Turbomachinery‑control engineers, power‑plant maintenance technicians and safety‑system retrofit integrators benefit most. It fits standard Mark VIe rack slots and applies to gas‑turbine, steam‑turbine and combined‑cycle unit emergency‑trip protection loops in utility and petrochemical power‑plants.

Key Application Notes

• Must pair with PPRO I/O pack; cannot run standalone
• TMR‑voted hardware‑trip relays provide safety backup even when main controller encounters software faults
• Jumper configuration must be verified before commissioning; incorrect jumper setting disables 2‑out‑of‑3 trip‑voting function
• Non‑hot‑swap hardware: rack power shall be removed before board replacement
• No onboard fuses; external fuses must be fitted on field‑trip‑coil wiring side
• Inductive trip‑coil loads require external surge‑suppression devices
• Conformal‑coated PCB variant available for high‑humidity and high‑contaminant cabinet environments
• Origin USA; widely used spare for turbine‑generator maintenance and safety‑system retrofit projects