GE IS230TRLYH1BGG

Product Overview

The GE IS230TRLYH1BGG is a highly reliable and highly diagnostic-capable safety relay output terminal board designed by General Electric for its Mark VIeS enhanced safety turbine and process control system. As the core safety component of the Mark VIeS distributed I/O architecture, this board not only inherits all the advantages of the Mark VIe system's relay outputs, but also through hardware and firmware enhancements, enables it to assume the role of a safety instrument and meet the requirements of IEC 61508 / IEC 61511 functional safety standards. The IS230TRLYH1BGG itself is a physical interface unit that receives instructions from the safety-certified I/O processor module and, through its internally integrated mandatory-oriented contact safety relays, drives the alarm devices, auxiliary system interlocks, and even the auxiliary control circuits of the main fuel valves and other actuators in the field. The board serves as a safety bridge connecting the Mark VIeS control logic to the physical world, ensuring that in dangerous conditions, the system can enter a safe state predictably and reliably.

Product Function Features

Native support for functional safety

This is the core differentiating advantage of IS230TRLYH1BGG. The board is not a simple relay board; it is a certified safety component that can be directly used to build safety circuits that comply with international standards, such as burner management, ESD, overspeed protection, etc.

Mandatory directional contacts and high diagnostic coverage

Mandatory directional contacts provide hardware-level security guarantees.

Winding current monitoring, Command/Feedback diagnosis provide deep self-checking capabilities at the software level. Combined, they achieve extremely high SFF and diagnostic coverage, which is the key to achieving high SIL levels.

Inheriting the outstanding architecture of Mark VIe

The separated design maintains the significant advantage of off-site maintenance, eliminating the need to open the main control cabinet for maintenance of safety circuits.

High-reliability industrial-grade components and robust design, adapted to harsh environments.

Flexible power supply options support various on-site power supplies and are protected by fuses.

Seamless integration into the Mark VIeS ecosystem

All safety-related configurations, diagnostics, and alarms are managed uniformly through ToolboxST Safety software and integrated with the basic process control screens, providing a consistent experience for operators.

Related product recommendations

Complementary I/O processor module

IS230QCRCH1A / IS230QCRRH1A, Mark VIeS safety relay output processor module.

Products for the previous generation / non-safety counterparts

IS200TRLYH1B, standard relay output terminal board for Mark VIe.

Complementary software

GE ToolboxST Safety for configuration, verification and diagnosis for safety applications.

Controlled equipment

Alarm lights and buzzers with safety rating

Safety interlock solenoid valves

Coil of motor safety contactors

Installation Guide

Qualification Requirements

The installation and configuration work must be carried out by engineers who have received functional safety training and obtained certification.

Mechanical Installation

Install IS230TRLYH1BGG on the DIN rail inside the control cabinet.

Electrical Connection

On the system side, use the correct GE special stranded cable and connect to the QCRx safety I/O module.

Field Side

Connect strictly according to the safety circuit schematic diagram.

The power supply for the safety circuit must be a certified safety power supply.

If the feedback function is used, the lead from the forced directional auxiliary contact of the relay must be connected to the feedback terminal of the terminal board.

All connections must be firm and clearly marked.

Power On and Safety Verification

After powering on, check the status of each channel through the ToolboxST Safety software.

The complete safety circuit verification must be performed.

Static test verification of instructions, feedback, and diagnostic alarm functions.

Dynamic testing is conducted under safe conditions to simulate dangerous scenarios and verify whether the entire SIF can bring the process into a safe state within the specified time.

All tests must be documented formally and signed by authorized personnel for confirmation, serving as the basis for system operation and future audits.