GE IS200REGIH1A IS200REGIH1ABR6 | Turbine Control Board

Core Processing Unit for GE Speedtronic Turbine Systems

The GE IS200REGIH1A IS200REGIH1ABR6 executes real-time governor control algorithms. This turbine control board belongs to the Mark VI series from General Electric. It processes speed, load, and temperature inputs continuously. Therefore, it maintains stable turbine operation across all operating conditions.

Physical Dimensions and Rack Mounting Details

This control board measures 26 cm in width, 18 cm in height, and 4 cm in depth. The GE IS200REGIH1A IS200REGIH1ABR6 weighs approximately 0.68 kg, which supports secure rack mounting. Its multilayer PCB contains high-density surface-mount components. Consequently, you can install it in any standard Mark VI chassis slot.

Connector Layout and Component Configuration

The GE IS200REGIH1A IS200REGIH1ABR6 features one 96-pin backplane connector for system bus access. It also provides two 20-pin auxiliary headers for expansion cards. This board contains one 32-bit main processor and four memory modules. Additionally, it includes twelve energy storage capacitors for brownout protection.

Technical Parameter	Specification
Full Model Name	GE IS200REGIH1A IS200REGIH1ABR6
Manufacturer	General Electric (GE)
Series	Mark VI / Speedtronic
Product Category	Turbine Control Board
Weight	0.68 kg (1.50 lbs)
Dimensions (W x H x D)	260 mm x 180 mm x 40 mm
Backplane Connector	1 x 96-pin DIN
Auxiliary Headers	2 x 20-pin
Processor	32-bit RISC (50 MHz)
Memory Modules	4 units (8 MB total)
Energy Storage Capacitors	12 units (470 µF each)
Total Capacitance	5,640 µF
Brownout Hold-Up Time	50 ms minimum
Analog Inputs	8 channels (16-bit)
Operating Temperature	–20°C to +60°C

Energy Storage and Brownout Protection Performance

The GE IS200REGIH1A IS200REGIH1ABR6 stores substantial energy for critical hold-up. Its twelve capacitors provide 5,640 µF of total capacitance. This storage keeps the processor running for 50 milliseconds after a power loss. As a result, the board completes safety shutdowns without data corruption.

Role Within the Mark VI Speedtronic System

You will typically find the GE IS200REGIH1A IS200REGIH1ABR6 in the main processor slot of the rack. It communicates with all I/O boards via the VME backplane. Moreover, this board supports triple-redundant configurations for high availability. Its eight analog inputs accept signals from turbine speed probes and thermocouples.

Installation and Configuration Guidelines

Use the GE IS200REGIH1A IS200REGIH1ABR6 as a direct replacement for older REGI revisions. Always power down the entire rack before inserting or removing this board. The 96-pin connector aligns with standard VME keying guides. This board requires firmware loading through the auxiliary port. Simply slide it into the chassis and tighten the injector/ejector handles.