GE IS200TREGH1B Mark VI/VIe Emergency Trip Terminal Board
Manufacturer: GE Fanuc
-
Part Number: IS200TREGH1B
Condition：New with Original Package
Product Type: Trip Relay Terminal Boards
-
Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE IS200TREGH1B Emergency Trip Terminal Board
The GE IS200TREGH1B, also cataloged as the IS200TREGH1B Trip Relay Terminal Board, operates as a dedicated hardware component for the termination and conditioning of protective trip signals within Mark VI and Mark VIe turbine control systems.
Suffix Breakdown & Model Matrix
The IS200TREGH1B constitutes a standardized terminal assembly designed to bridge the turbine control logic with field-side safety devices. The "H1B" designation indicates the specific hardware revision level, incorporating optimized relay contact ratings and enhanced optical isolation pathways compared to preceding iterations.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS200TREGH1B |
| Brand | GE |
| Origin | USA |
| Weight | 0.5 kg |
| Dimensions | 233 mm x 160 mm x 18 mm |
| Operating Temp | -30 deg C to +65 deg C |
| Power Consumption | 24 VDC (Control Logic) |
| Output Capacity | 2 A (per relay channel) |
| Isolation | Optical and Electrical Isolation |
Industrial Control and Safety Architecture
The Mark VIe architecture utilizes the IS200TREGH1B to execute mission-critical trip commands. This board provides the necessary electrical isolation to protect low-voltage control processors from transient surges originating in field-side safety actuators. It supports Triple Modular Redundant (TMR) configurations, where the board facilitates voting logic to ensure that a single point of hardware failure does not inhibit a protective shutdown. Furthermore, the conformal coating applied to the PCB assembly ensures long-term operational stability in high-vibration turbine environments, preventing conductive path degradation caused by humidity or airborne contaminants.
Frequently Asked Questions
Q: Can the IS200TREGH1B be used in a Simplex turbine control configuration?
A: Yes, the board is compatible with both Simplex and TMR architectures. In Simplex applications, the board provides the primary interface for trip relay outputs, while in TMR systems, it acts as a voting node to aggregate trip signals from multiple controller modules.
Q: What is the primary function of the optical isolation on this board?
A: The optical isolation decouples the high-energy field-side relay circuits from the low-energy control electronics. This prevents high-voltage feedback or inductive back-EMF from damaging the Mark VIe I/O packs during relay de-energization.
Q: Does the board support hot-swapping under load?
A: While the hardware allows for modular replacement, technicians must observe site-specific lockout/tagout (LOTO) procedures when handling trip relay boards. Ensure that the associated I/O pack is configured for the specific slot position to prevent unintended relay state changes during installation.
Field Installation Guidelines
- Mounting: Secure the board to the designated cabinet mounting studs. Use the provided hardware to ensure a vibration-proof installation within the turbine control enclosure.
- Signal Wiring: Connect field-side safety actuators to the screw terminals. Verify that conductor sizes are appropriate for the 2 A load capacity to prevent resistive heating at the contact point.
- Shielding: Terminate cable shields at the designated chassis ground connection. Proper grounding is necessary to maintain the integrity of the trip signal and prevent noise-induced false trips.
- Validation: After installation, verify the trip path continuity using a multimeter. Ensure that the relay state transitions match the control logic output before restoring the turbine to operational status.