IS200VAOCH1CAB

About the IS200VAOCH1CAB

The IS200VAOCH1CAB  is a board component from General Electric designed for the Mark VI system.  The Mark VI was released in the 1990s under the “Speedtronic” name, which is a long-running steam and gas turbine management line developed by General Electric.  These management systems have focused on improving the reliability of heavy-duty turbines by creating efficient, integrated management systems that are specifically designed for the needs of gas and steam turbine applications.  The MKVI offers triple redundant backups on all critical controls, and has a HMI (Human-machine interface) built on a Windows PC platform loaded with proprietary software that has been designed for turbine management, like CIMPLICITY graphics.

The IS200VAOCH1CAB is a second-generation VAOC board. The board supports higher load resistance on the first eight output circuits (up to 800 Ω.)  The IS200VAOCH1CAB functions as an Analog Output board.  It controls sixteen 20mA (analog) outputs. The IS200VAOCH1CAB is mounted within the VME rack and receives inputs over the VME backplane from the VCMI board.  It is worth noting the IS200VAOCH1CAB can only be installed when the VME I/O processor rack is powered down.

The IS200VAOCH1CAB has three LED components, which are mounted in the front faceplate that is attached to the board.  These components are labeled “Run,” “Fail,” and “Status,” and are green, red, and orange respectively. The board also is home to sixteen relay components and dozens of integrated circuits, including oscillating chips, SRAM circuits, and field programmable gate arrays (FPGAs.)  Resistors, diodes, and capacitors appear on the board. It also has two backplane connectors and several connectors made from conductive dots and traces.