DS200DTBDG1A

DS200DTBDG1A is a Contact Output Expansion Termination Module manufactured and designed by General Electric as part of the Mark V/ Mark V LM Series used in turbine control systems. Locations for the Contact Output Expansion Termination Module (DTBD) include Q11, Q21, and Q51. In position 5 of Q11, Q21, and Q51 on the TCRA, DTBD is connected to the 30 relays. By using hardware jumpers on DTBD, 16 of the 30 outputs on location 4 of Q21 and Q51 can be set up as solenoids. When J19 and J20 are linked and the factory-installed wire jumpers are changed, two more contact outputs (#47 and #48) can be used for ignition converters.

DS200DTBDG1A Connectors

• JS1 through JS8 - Reads the relay signals from the TCRA board at position five using JS1 through JS8.
• J8 - The TCPD board in the PD core supplies power to J8 for the solenoids.
• J19 - To supply 125 V dc power to contact outputs #47 and #48, J19 is connected to J20. Linked in Q11 and Q51, not connected in Q21.
• J20 - Connects to J19 to supply contact outputs #47 and #48 with 125 V dc power. Linked in Q11 and Q51, not connected in Q21.

DTBD Hardware Configuration

P1/M1 through P16/M16 - For contact outputs #31 through #46, respectively, solenoid enable. Both must be inside or outside.

Features

• The test points on the board have an ID that starts with TP and ends with a number. Some examples include TP1 and TP2.
• The IDs are crucial because the servicer can look up information about the test spots in the written publication that comes with the board from the factory. The test point ID will be used to reference the data. It will what TP1 is for, what circuits the test point checks, and what the testing numbers represent.
• If you notice that the board is not performing as expected, consult the instructions and test the circuits that may be affected. Only a trained servicer, on the other hand, will have the necessary background, expertise, and understanding to test the board.
• The board-testing equipment must be qualified for the job, completely functioning, and in good operating order. The tester must also be calibrated for the task, and the probes must be designed for use with the tester. They also need to be in good operating order.
• Place the board on top of a static-free surface to safeguard it. For example, a static protective bag that has been flattened. It is necessary to have a clean and dry surface.
• The surface should be solid, with enough room for hand tools, testing equipment, other boards, and printed instructions.