IS200AEADH1ADA — GE Speedtronic Mark VI AEAD Board

The IS200AEADH1ADA is a printed circuit board from GE's Speedtronic Mark VI turbine control system, belonging to the IS200 board family. It is an AEAD-type module — a termination / interface board that handles signal conditioning and field wiring for the turbine control cabinet.

Mark VI systems are GE's third-generation Speedtronic control platform, used to govern gas and steam turbines. Boards in the IS200 series act as the physical interface between the control processors and the field devices — sensors, actuators, and transducers — converting raw field signals into a form the controllers can read. The IS200AEADH1ADA carries the "H1" board designation and an "ADA" revision suffix, distinguishing it from related AEAD variants (such as IS200AEADH1A, H1ABB, and H4AAA).

Key Specifications

Note: Detailed technical parameters (channel count, voltage ratings, connector types) are not consistently documented in public sources. Confirm exact specifications against the board label, GE documentation, or your system's Manual GEH-6421 (Mark VI) before ordering.

Product Functions

• Field signal termination: Provides the physical termination point where field wiring from sensors and devices connects into the control cabinet.
• Signal conditioning: Converts, filters, and scales raw field signals (analog and digital) into a form suitable for the Mark VI control processors.
• I/O interfacing: Acts as the interface layer between the control system's I/O modules and external turbine instrumentation, transducers, and actuators.
• Turbine control integration: Supports the signal paths used by the turbine control loop, contributing to accurate speed, temperature, and pressure monitoring.
• Wiring organisation & serviceability: Consolidates connections into a dedicated board, simplifying troubleshooting, testing, and board-level replacement during maintenance.
• System continuity: Allows existing Mark VI installations to remain operational, supporting spares strategies for ageing turbine control systems.

Application Scenarios

• Gas turbine control: Signal interface within Mark VI Speedtronic control cabinets for gas turbine governor and protection systems.
• Steam turbine control: Field signal conditioning in steam turbine control applications.
• Power generation plants: Keeps legacy Mark VI turbine controls serviceable in utilities managing long-life assets.
• Oil & gas facilities: Support for turbine-driven compressors and mechanical drive applications under Mark VI control.
• Maintenance & overhaul: Sourced as a spare during scheduled outages to minimise downtime and rewiring.
• Legacy system lifecycle support: Supports spares and phased modernization strategies for plants still running Mark VI controls.

Frequently Asked Questions