Description

The GE IS200TRLYH1BGF is a 16-channel relay output module (part of the TRLY family) designed for the Mark VIe turbine control and protection system by General Electric (now Emerson). This board provides Form C (SPDT) electromechanical relay contacts capable of switching AC/DC loads up to 2A @ 250VAC / 30VDC, making it ideal for driving alarms, annunciators, auxiliary contactors, solenoid valves, and emergency trip circuits in gas, steam, and hydro turbine applications.

As a critical safety interface, the IS200TRLYH1BGF converts digital commands from the Mark VIe controller into isolated, high-voltage relay closures—ensuring that low-voltage logic signals never directly connect to field devices. This galvanic isolation enhances system resilience against ground loops, surges, and electrical noise common in power plant environments.

The module is typically installed inside a Mark VIe I/O pack (such as the PBA030A100 or PBA030A200) and communicates with the controller via redundant I/O NET fiber-optic links. It supports both Simplex and Triple Modular Redundant (TMR) configurations, with voting logic handled at the controller level to ensure fail-safe operation per IEC 61508/61511 standards.

GE IS200TRLYH1BGF

Technical Specifications

Main Features and Advantages

✅ Fail-safe turbine trip actuation: The IS200TRLYH1BGF directly drives critical shutdown solenoids (e.g., fuel stop valves, hydraulic trip relays), ensuring rapid, reliable de-energization during overspeed or fire events.

✅ Visual diagnostics per channel: Each relay has a front-panel LED that illuminates when energized—enabling quick troubleshooting during commissioning or maintenance without probing live circuits.

✅ High noise immunity: Full galvanic isolation between logic and field sides prevents EMI from motors, breakers, or radio transmitters from causing false trips.

✅ Hot-swappable in simplex mode: In non-TMR systems, the board can often be replaced without powering down the I/O pack—minimizing downtime.

✅ Standardized Mark VIe integration: Plug-and-play compatibility with GE’s I/O pack ecosystem and automatic recognition in ToolboxST configuration software.

Application Field

The IS200TRLYH1BGF is essential in mission-critical power generation and industrial turbine systems:

• Ingas turbine plants, it actuates fuel shutoff valves, lube oil pump starters, and generator breaker trip coils during emergency shutdowns.

• Insteam turbine facilities, it controls extraction valve solenoids, condenser vacuum breaker relays, and auxiliary steam isolation valves.

• Incombined-cycle and CHP plants, it interfaces with HRSG (Heat Recovery Steam Generator) dampers and bypass systems.

• Inhydroelectric stations, it triggers governor solenoid valves and field breaker trips.

GE IS200TRLYH1BGF

Related Products

• IS200DSIH1: Digital input board (complements TRLY for permissive/trip feedback)

• IS200VSVOH1: Servo output board for electro-hydraulic control

• VCMI / VPRO: Mark VIe controller modules that command TRLY outputs

• PBA030A100: Standard I/O pack enclosure housing TRLY boards

• IS200AVTIH1: Analog input module for sensor signals

• ToolboxST: GE’s engineering software for logic configuration and I/O mapping

• IS200PSMH1: Power supply module for I/O packs