IS400TDBTH6A | Turbine Control I/O Module

Product Model IS400TDBTH6A
Manufacturer GE (General Electric)
Product Type Turbine Control I/O Module
I/O Configuration 16 digital inputs / 16 digital outputs
Input Voltage 24 VDC nominal (18-32 VDC range)
Output Type Solid-state relay outputs
Output Current 0.5A per channel
Isolation Voltage 1500 VDC channel-to-backplane
Response Time < 1ms for inputs, < 2ms for outputs
Operating Temperature -40°C to +70°C
Communication Interface Mark VIe backplane
Certifications UL, CE, ATEX Zone 2
Category:

Description

Technical Specifications

Product Model IS400TDBTH6A
Manufacturer GE (General Electric)
Product Type Turbine Control I/O Module
I/O Configuration 16 digital inputs / 16 digital outputs
Input Voltage 24 VDC nominal (18-32 VDC range)
Output Type Solid-state relay outputs
Output Current 0.5A per channel
Isolation Voltage 1500 VDC channel-to-backplane
Response Time < 1ms for inputs, < 2ms for outputs
Operating Temperature -40°C to +70°C
Communication Interface Mark VIe backplane
Certifications UL, CE, ATEX Zone 2

Key Features and Advantages

High-Density I/O: The IS400TDBTH6A combines 16 digital inputs and 16 digital outputs in a single-slot module, maximizing I/O density in space-constrained turbine control cabinets.

Mission-Critical Reliability: Designed for continuous operation in harsh environments, this module features industrial-grade components with MTBF exceeding 200,000 hours, ensuring uninterrupted turbine operation.

Advanced Diagnostics: Integrated self-monitoring continuously checks module health, detecting channel faults, power supply issues, and communication errors before they impact turbine operations.

Fast Response: With sub-millisecond response times, the IS400TDBTH6A ensures precise control of turbine safety systems including fuel shutoff valves and ignition sequences.

Seamless Integration: Native compatibility with GE’s Mark VIe control system enables plug-and-play configuration through ToolboxST software, reducing commissioning time by up to 40%.

IS400TCASH1AGD

Application Fields

The IS400TDBTH6A is engineered for critical turbine control applications in power generation. In combined-cycle power plants, it manages fuel system interlocks, ignition sequencing, and flame detection systems for gas turbines. Steam turbine installations utilize this module for governor control, valve position feedback, and emergency trip systems.

Industrial applications include compressor control in pipeline stations and mechanical drive turbines for large pumps and generators. The module’s robust design makes it suitable for offshore platform power generation where salt spray and vibration are constant challenges. With ATEX Zone 2 certification, the IS400TDBTH6A operates safely in hazardous environments near fuel handling systems.

Installation and Maintenance

Installation Preparation: Before installing the IS400TDBTH6A, verify compatible Mark VIe rack and sufficient power budget. Ensure proper ESD protection during handling. Use GE-recommended backplane connectors and follow torque specifications for terminal blocks. Verify I/O mapping in ToolboxST before power-up.

Maintenance Recommendations: Perform quarterly diagnostic checks using ToolboxST software. Monitor heat dissipation and ensure adequate airflow around the module. Clean electrical contacts annually using electronic-grade contact cleaner. For firmware updates, follow GE technical bulletins and use the IS420ESWBH3A Ethernet module for network access.

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