Description

The IS205TFBHG1A is a board component for the Mark VI system.The Mark VI, which was developed to manage gas/steam turbines by General Electric as part of the Speedtronic series, is built around a Central Control Module built with either a 13- or 21-slot VME card rack.This allows inputs to be received through termination cards using box-type or barrier terminal blocks via passive signal conditioning. The Mark VI can be built as a simplex or as a triple redundant system depending on complexity, size, and management needs of the associated turbine. The IS205TFBHG1A functions as a Temperature Feedback Board.This board is typically a sub-assembly for the IS200PICHG#A board.It provides two temperature feedback channels to that board to monitor IGBT cold-plate temperature.The board is soldered into place using the 39-pin connector located along one edge of the board. This allows two temperature signals to be converted and multiplexed by the IS205TFBHG1A board.This temperature information is transmitted continuously. It alternates between the two feedback channels at a rate of 250 kHz. The IS205TFBHG1A is populated by twelve capacitors, twenty-four resistors, and five integrated circuits.The board is marked with codes 6BA01, 4112, and SEC-6-0. The necessary power for the IS205TFBHG1A (+/-15 V and +5 V) is supplied by the PICH motherboard.This is one of several sub-assembly boards required by the PICH board. If more information is needed about this board, its components, or its motherboard, this information can be found through various GE publications, including manuals, user guides, and data sheets.