The IS200TRLYS1BGG is a board component for the Mark VI system from General Electric. This system is designed to manage and control industrial gas and steam turbines. It is one of the most complex of the Speedtronic systems from General Electric, in a line of turbine control systems that stretches back to the 1960s when the original Mark I system was released.
The IS200TRLYS1BGG is a discrete I/O board. It is one of several discrete I/O boards available for the MKVI. Others include the TBCI, the DTCI, the TICI, and the DRLY. like the TBCI and TICI, the IS200TRLYS1BGG is a barrier-type input/output board with plug-in magnetic relays that use form C contacts. This version of the board is used for diagnostics for coil current. If you need a board for diagnostics for contact voltage, please refer to a TRLY board ending in H1C. In some cases, this board can also offer partial power protection in systems where a 120/240 VAC source is used.
The IS200TRLYS1BGG is built with multiple relays lined up along the board center. One long board edge is populated by two terminal strips that have each screw connection numbered. The other board edge is populated with four d-shell connectors. Other board connectors include three three-pin plugs. Additional board components include integrated circuits, variable resistors, fuses, and resistors, capacitors, and diodes. The board is marked with the GE logo. Most components carry some form of reference designation. Refer to manuals and data sheets for more information.