DS200DTBAG1A GE MKV, Terminal Board, Digital I/O

Description:

DS200DTBAG1A GE MKV, Terminal Board, Digital I/O

The DS200DTBAG1A is a Digital Contact Terminal Board produced by General Electric, belonging to the Mark V LM Series and utilized in gas turbine control management systems. Q11, Q21, and Q51 denote the positions of the Contact Input Termination Module (DTBA). The initial 46 contact inputs within the same digital core are linked to TCDA via DTBA. To facilitate fail-safe contact input functionality, the contact sense can be inverted through configuration in the TCDA IO Configuration. JY obtains 125 V dc power from the DTBA board. The TB2 terminal board enables the excitation voltage for contact inputs on the DTBA and DTBB terminal boards in the digital cores to be either 125 V dc from the core or 24 V dc from the core. The desired contact input excitation option is implemented at the factory.
To supply a fuse-isolated and current-limited interrogation voltage for the contact inputs, the Mark V LM controller draws either 125 V dc or 24 V dc from the power distribution core. By disconnecting the interrogation voltage, jumpers on the DTBA and DTBB terminal boards can be used to isolate field grounds. These jumpers are connected in groupings of eight contact inputs. Alterations to these jumpers should only be made when the turbine is not operational. On the TCDA board, located at Position 1 of the digital I/O core, each contact input is optically isolated.
The CPU on the TCDA board assigns a time stamp to each contact input within 1 millisecond of a status change. If a contact input is selected for logging, the operator interface printer can record the time stamp whenever the input's state changes. In case of a contact input circuit failure, diagnostic checks run continuously and trigger an alert.

Frequently Asked Questions:

1.What input voltage range does DS200DTBAG1A support?
It can accept voltages between 24 VDC and 125 VDC as input.

2.The DS200DTBAG1A termination board is for which contact inputs?
For digital contact inputs 1-46, it serves as a termination.

Datasheet Link:

DS200DTBAG1A GE MKV, Terminal Board, Digital I/O PDF Datasheet