IS230TEASH4A - Aero Emergency Trip Module

SPECIFICATIONS:

Part Number: IS230TEASH4A
Manufacturer: General Electric
Series: Mark VIe
Product Type: Aero Emergency Trip Module
Number of channels: 24
Excitation voltage: 125 Vdc
Power supply voltage: 28 V dc
Voltage Range: 14 to 32 V dc
Mounting: DIN-rail mounting
Technology: Surface mount
Operating temperature: -30 to 65�C
Size: 17.8 cm wide x 33.02 cm
Repair: 3-7 Days
Availability: In Stock
Country of Origin: United States

FUNCTIONAL DESCRIPTION:

IS230TEASH4A is an Aero Emergency Trip Module manufactured and designed by General Electric as part of the Mark VIe Series used in GE Distributed Gas Turbine Control Systems. The Aero Emergency Trip Module in a turbine is a vital component designed to ensure the safe operation of turbine-powered systems, such as aircraft engines or industrial turbines, during emergencies. This module incorporates various features and functionalities to detect and respond to emergencies promptly, minimizing risks and potential damage. It continuously monitors predefined emergency inputs such as overspeed, emergency stop, and critical alarm signals. Upon detection of any emergency condition, the module generates fast trip outputs to initiate turbine shutdown or protective actions. The module implements high-reliability trip logic with hardware-based processing to ensure deterministic response time and fail-safe operation. It is used to provide critical emergency protection functions and is not intended for normal control or monitoring tasks.

INSTALLATION:

The module is mounted on a standard DIN-rail inside the Mark VIe control cabinet. The module must be installed in a dedicated I/O rack or panel section following GE Mark VIe cabinet layout requirements. Power supply and signal wiring must be connected to the designated terminal blocks using correct wire sizes and torque values as specified by GE. The module must be grounded properly to the cabinet earth to prevent electromagnetic interference and ensure safe operation. Installation must ensure correct orientation, secure fastening, and proper separation from high-voltage or high-noise cables.

OPERATION:

The module continuously receives emergency input signals and evaluates them against configured trip logic. If an emergency input is asserted or a fault condition is detected, the module immediately asserts the corresponding trip output. The trip output remains asserted until the module is reset or the emergency condition is cleared according to the system logic. The module also provides status indications for input and output states, internal faults, and module health. It is designed to operate reliably in industrial environments with vibration, temperature variation, and electrical noise typical of turbine control rooms.

WOC maintains the largest inventory of OEM replacement parts for GE Distributed Control Systems and offers both new and refurbished boards, all backed by a comprehensive warranty. In addition to supplying genuine components, we provide expert repair services for faulty modules, ensuring fast turnaround and reliable performance. Our team of technical specialists is available 24/7 to support your automation requirements, including component selection, system compatibility, and urgent replacement needs. For pricing, availability, and repair inquiries, please contact our team by phone or email.

FREQUENTLY ASKED QUESTIONS:

What is the purpose of the Aero Emergency Trip Module (IS230TEASH4A)?

The IS230TEASH4A Aero Emergency Trip Module is a dedicated safety module used in GE Mark VIe control systems to provide fast, deterministic emergency trip logic. It continuously monitors critical safety inputs such as overspeed, emergency stop, and other protective signals. When an emergency condition is detected, the module immediately asserts trip outputs to initiate turbine shutdown. This prevents equipment damage and ensures personnel safety by enforcing fail-safe shutdown logic.

How does the module detect emergency conditions?

The module receives discrete inputs from sensors, switches, and protection relays wired to its terminal blocks. It evaluates these inputs using internal trip logic and predefined safety thresholds. When an input condition meets trip criteria, the module generates a trip output without relying on higher-level controller processing. This ensures rapid response times and deterministic protection action.

What types of inputs does the module accept?

The module typically accepts discrete emergency inputs such as emergency stop switches, overspeed signals, high vibration, high temperature, low oil pressure, and flame failure. These inputs are usually wired as either normally closed (NC) or normally open (NO) contacts, depending on the safety design. Inputs are routed through the Mark VIe terminal boards to the module. The module�s logic monitors these inputs continuously for fault conditions.