About the DS200RTBAG4AHC
The GE Power Excitation Board DS200RTBAG4AHC is an optional board that is installed in the drive cabinet and it features ten relays that are driven either directly from the pilot relays or remotely by the user. While generally attributable as a GE Power Excitation Board is more specifically definable by its functional product description as a Relay Terminal Board Assembly, which it appears as in original factory-printed instructional manual materials. This DS200RTBAG4AHC Relay Terminal Board Assembly, while officially deemed to be a Mark V Series assembly product, does not possess any sort of special assembly version within the Mark V Series, outside of the three significant revisions that have been made to this product to elevate it from its original DS200RTBAG4 base circuit board status.
Hardware Tips and Specifications
This DS200RTBAG4AHC Relay Terminal Board is a customizable printed circuit board that features many hardware elements and specifications standard to its Mark V Series of turbine control systems. The DS200RTBAG4AHC board has multiple jumpers that enable you to control the behavior of the board, wire connectors for pluggable circuits, cable connectors, ribbon cables, and stab connectors for pluggable circuit power. Before you disconnect any cables or wires from the assembly of this DS200RTBAG4AHC PCB, it is vital that you note where all the wires and cables are connected on the defective board, making labels that indicate where a cable or wire is connected before you disconnect it. The connectors all have identifiers on the board and they provide a precise and easy means of identification.
Ribbon cables are a component in the assembly of this DS200RTBAG4AHC Relay Terminal Board that are especially fragile and require that you understand the proper procedure to connect and disconnect them. The RTB terminals on the board are held in place with small screws that hold the terminals securely. To unfasten them, use a screwdriver to loosen the screw and pull out the wire. It is important to not remove the screw entirely from the terminal while leaving it in the terminal, as it could potentially fall and get lost in the Mark V Series drive assembly. This DS200RTBAG4AHC Relay Terminal Board has seven total relays in its assembly; classified as form C DPDT relays. These relays are software-driven via the Mark V Series drive assembly's set of LTB pilot relays, which each relay accompanied by its own diagnostic LED indicator.
