Product Description
The IS200VCMIH2B is a component created by GE for the Mark VI system. The Mark VI is a gas/steam turbine management system released by General Electric as part of their “Speedtronic” line. This line of turbine management systems began with the Mark I in the 1960s and continued on through the release of the Mark VI and Mark VIe, which occurred decades later. The Mark VI is usually powered by a 125 Vdc battery system but can be powered by a 120/240 vac source using a power converter with a transformer to rectify this source to 125 Vdc. The MKVI is considered an indoor model of GE component part, as it was designed for operation within an air-cooled equipment room.
Hardware Tips and Specifications
The IS200VCMIH2B is mounted in slot one of the Central Control Module. This PCB allows internal communications to occur within I/O cards located within the card rack and also within other Control Modules or Protection Modules.
The IS200VCMIH2B has a front faceplate attached. This faceplate has multiple components mounted into its surface. This includes three DIN connectors that are labeled IONet1 through IONet3. IS200VCMIH2B's faceplate additionally has one reset switch and one 9-pin male serial connector. The board's faceplate also has multiple LED indicators. This includes a set of three LEDs at the top and bottom of the faceplate, a set of eight LEDs toward the middle, and another set of six LEDs below these.
Beyond the components available on the faceplate attached to the IS200VCMIH2B, some components unique to this circuit board include two backplane connectors and two vertical pin connectors, including a ribbon connector. The board has several connectors made up of conductive traces. In addition, the board has three transformers, several transistors, and over fifty integrated circuits, including two field programmable gate arrays. The board includes resistors, diodes, and capacitors. These components are located on both surfaces of the board's base plate.
The IS200VCMIH2B component board has some unique diagnostics, starting with the PCB's processor stall timer used to generate a signal SYSFAIL. When detected properly, this SYSFAIL signal should light this board's sole red indicator LED. For this specific process, this General Electric Mark VI series PCB has a watchdog timer set to a 150 ms. This VCMI board additionally plays a crucial role in triggering another added set of diagnostic alarms, informed by values otherwise shrouded in board control system redundancy.
Unlike its grandfather part in the IS200VCMIH2 board, the IS200VCMIH2B model of printed circuit board is unique in its functional revision of "B", indicating an attached faceplate. Prior to purchase of any General Electric component part, it is always of great import to consider any alphabetic values included in the product number following the "H" PCB coating designation, as they reveal any revisions made to that original product. This PCB is available for both repair and replacement here at AX Control, with a standard lead repair time of one to two weeks.
