GE IS200TREAH1A | Turbine Emergency Trip Terminal Board

Product Positioning: GE Mark VIe retrofit gas turbine-specific TMR triple-redundant emergency trip terminal board (TREA series), original factory product from the United States, equipped with PPRO turbine I/O module, core board of the ESD emergency shutdown safety circuit for the unit I. Basic Information

Model Full Name: IS200TREAH1A (TREA = Aero-derivative Turbine Emergency Trip)

Ownership System: GE Speedtronic Mark VIe / VIeS Gas Turbine Control System

Origin: GE, SMT Surface Mount Technology PCB Board

Operating Environment: -30℃ to +65℃, humidity 5% to 95% without condensation

Power Supply: DC24V System Power Supply, TMR Three-Channel Independent Power Supply (X/Y/Z three redundant channels, each channel redundant)

Hardware Terminals & Channel Configuration

1. External Connection Terminals

2 Sets of 24-bit Plug-and-Play Guarded Terminals (TB1, TB2), totaling 48 external terminals: connect local emergency stop, shaft vibration, differential expansion, flame failure, local trip hard contact signals

Terminal Specifications: H1A = 24VDC Output Type, H2A = 125VDC Trip Coil Output (1A is the standard configuration for this model, 24V version)

2. Speed Acquisition Loop (MPU Magnetic Probe Speed Measurement)

9 Passive Pulse Speed Measurement Channels (X/Y/Z three redundant zones, each zone 3 channels), connect to gear disk magnetic resistance probe, collect the speed of the gas turbine main shaft; the onboard jumpers can route the single group speed signal to three PPRO main controllers to achieve three redundant voting speed measurement and overspeed protection.

3. Trip Loop Monitoring

4 Trip String Voltage Detection Circuits: 24 to 125VDC range, real-time monitor the connection status of the hard-wired trip loop, the state of the trip coil being energized, faults detected by broken wire / power loss are sent to the system for alarms.

4. Safety Trip Output

3 TMR Three-Out-of-Two Voting Solid State Trip Output Contacts: hardware hard contacts directly drive the fuel shut-off valve, emergency trip solenoid valve, not relying on software, hardware independently triggers ESD shutdown (fault-safe type).

5. Communication Interface

RS232/RS422 Serial Ports: speed signal forwarding, speed display head driver output; onboard JX1/JY1/JZ1 three 37Pin connector sockets, connect three PPRO redundant CPU cards.

Core Functions

Hard-wired ESD Safety Circuit Summary: all hard-wired emergency stop, shaft over-limit, fire protection, overspeed, fuel system failure hard contacts are summarized and connected to this board, hardware priority trip (superior to PLC software logic).

Three Redundant TMR Signal Distribution: all input signals are hardware routed to X/Y/Z three independent control units, three-out-of-two voting, single-point failure does not cause mis-trip or refusal to trip.

Trip Loop Online Diagnosis: continuously monitor the voltage of the trip coil circuit, circuit break, short circuit are reported as faults in real time, early warning of safety circuit hazards.

Speed Acquisition and Overspeed Hard Protection: 9 MPU speed sampling, when overspeed, the onboard hardware circuit directly outputs the trip, independent of the main control program.

Application Scenarios

Aero-modified gas turbines (LM2500/LM6000 etc.), medium and small-sized heavy-duty gas turbines, matching drive large centrifugal compressor units Mark VIe system

Self-owned power plants, oil and gas field power stations, coal chemical compression unit emergency protection system

Model Distinction

IS200TREAH1A: 24VDC Trip Output (H1A), commonly available stock model

IS200TREAH2A: 125VDC Trip Coil Output (H2A)

IS230TREAH1A: VIeS System Special Version, interface definitions are consistent