Product Description
The IS200TVBAH2A is a printed circuit board developed for General Electric's Mark VI Speedtronic series of turbine controls. This PCB can be more explicitly defined as a Vibration Input Terminal Board. This model PCB is considered a revised product; existing as a modified version of the original IS200TVCAH2 printed circuit board. This IS200TVBAH2A board may be more often referred to by its industry-known functional acronym TVBA, and providdes direct interfacing for multiple types of probes, while also providing signal suppression and EMI protection for each individual input signal. This model is available for both repair and replacement, right here at AX Control.
Hardware Tips and Specifications
The IS200TVBAH2A Vibration Input Terminal Board makes use of a series of unique and interesting hardware specifications. For starters, it is important to acknowledge that this model printed circuit board, as with any Mark VIe system PCB, does not use the traditionally-compatible RKPS power supply. Instead, power for the IS200TVBAH2A is acquired from several sources 28 V power supplies. No external source for this 28 V voltage is supplied, as the IS200TVBAH2A model must maintain the exact same functionality of the Mark VI TVIB board. Additional TVIB board likeness for the IS200TVBAH2A is supplied through the inclusion of three removable daughterboards; capable of converting +28 V voltage to -28 V voltage. All of the negative-voltage power supplied to the IS200TVBAH2A should be contained in these daughterboards.
While the IS200TVBAH2A does boast some interesting functionality and functional components similar to that of the TVIB board; it differentiates itself through an additional series of component parts. The overall assembly of the IS200TVBAH2A Vibration Input Terminal Board includes:
- two terminal blocks
- 14 sensor inputs wired to the terminal blocks
- 24 terminals in total
- a shield termination attachment point
- a series of eleven plugs for Bently-Nevada data
- a 37-pin connector
- additional buffer outputs to enhance connections beyond the 37-pin
- and many more important components
All of the components listed above and available on the base board of the IS200TVBAH2A Vibration Input Terminal Board should be well-protected beneath this PCB's conformal-style PCB coating, which, while much thinner than the alternative normal-style PCB coating; makes for a much more thorough and complete layer of printed circuit board protection. Before making a purchase decision for this Mark VI Speedtronic series product, it is important to recognize its status as a revised model of PCB. As indicated in the final "H2A" portion of the IS200TVBAH2A individualized product part number, this Vibration Input Terminal Board has a singular revision which modifies it from the preexisiting IS200TVBAH2 component board. This revision is classified as a functional revision, as it enhances the overall efficiency and functionality of the printed circuit board greatly. This information was sourced using a breakdown of the IS200TVBAH2A's part number as described in the "manuals" tab above. The "H2A" portion of the IS200TVBAH2A part number asserts its status as a conformally-coated PCB with a group 2 series grouping and a functional revision rated at an "A" grade.
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