GE IS200TREGH1BDB | TREG Trip Emergency Gate Board |

Core Functionality
As an emergency trip solenoid valve power drive terminal board, it outputs controlled DC positive power to up to 3 unit trip solenoid valves; The TRPG board is responsible for the negative end circuit of the solenoid valve, and the combination of the two forms a complete trip drive circuit.
Receive the trip door control signal from the TREA trip board, and the hardware circuit implements the trip door logic. Once triggered, the power supply to the trip solenoid valve is cut off, and the unit performs an emergency shutdown.
Onboard circuit current monitoring and disconnection diagnosis, capable of detecting open and short circuit faults in solenoid valve coils. Fault information is uploaded to ToolboxST, and the board comes with a built-in status LED to visually indicate the circuit status.
PCB triple anti coating, built-in surge suppression and EMI filtering, resistant to strong electromagnetic interference from power plant cabinets.
Front end high current spring terminal connected to the on-site cable of the trip solenoid valve; Connect the IDC ribbon connector between boards to the TREA processor terminal board.
Does not support hot swapping, maintenance and replacement must be powered off; Static sensitive devices require anti-static grounding during disassembly and assembly operations.

Electrical Specifications
Backplane power supply: 24-28 VDC Mark VIe I/O pack Backplane power supply
Drive load: up to 3 emergency trip solenoid valves, high-power DC coil drive
Circuit diagnosis: hardware detection of coil open circuit, short circuit, and overcurrent
Terminal: Spring clamped pluggable terminal, compatible with 14-24AWG power cables
Inter board interface: high-density IDC connector, compatible with TREA board
Safety level: Suitable for SIL-3 emergency stop safety circuit subsystem

Environmental conditions
Working temperature: 0~+60 ℃ (inside the control cabinet)
Storage temperature: -40 ° C~+85 ° C
Humidity: 5-95% RH, no condensation
Tolerate power plant cabinet vibration, dust, and electromagnetic interference environment

physical information
Form: Mark VIe I/O pack rack card insertion PCB terminal board
Weight: Approximately 0.8kg

Typical application scenarios
Mark VI/VI TMR control systems for gas turbines, steam turbines, and combined cycle power plants. Specially designed to drive the main emergency trip solenoid valve of the unit, which belongs to the hardware of the hard shutdown safety link. System trip logic: TREA outputs a trip command → TREG-TRPG circuit cuts off the power supply to the solenoid valve → the solenoid valve loses magnetism and the unit stops urgently.