The General Electric DS200DTBBG1ABB is identified by its DTBB family marking as a SPEEDTRONIC Mark V digital contact-input terminal board. The cited Mark V documentation places DTBB in the control-panel terminal-board architecture; the full G1ABB hardware revision must be matched to the installed board and unit-specific drawings.
- DS200DTBBG1ABB
- DTBB digital contact-input terminal board
- SPEEDTRONIC Mark V
- Contact inputs 47 through 96
DTBB provides field termination for a bank of Mark V digital contact inputs and routes those signals to the compatible TCDA digital I/O board for conditioning, change-of-state time tagging and transfer over IONET. The terminal board does not execute turbine control logic; the Mark V control processors use the resulting digital states in the configured sequencing and protection application.
Important Notice: Keep the complete DS200DTBBG1ABB marking unchanged and verify the physical nameplate, revision, companion hardware, and current manufacturer documentation before installation or replacement.
Apter Power DS200DTBBG1ABB Manuals and Guides
Important Notice: These are two separate Apter Power documents prepared from the manufacturer evidence named in each document. Confirm the physical nameplate, current manufacturer documentation, and applicable installation or system drawing before installation or replacement.
Control System Integration
Gas- and steam-turbine Mark V panels that terminate field status, permissive, alarm or trip-related contact inputs used by the configured turbine-control application.
Signal and Data Handling
Digital contact inputs for the Mark V control panel. Mark V hardware references identify DTBB with contact-input signal numbers 47 through 96 and a documented input range of 24 to 125 VDC; use the unit-specific drawings for the actual terminal assignment and wetting source.
Companion Hardware
Mark V TCDA digital I/O board, QD/CD core hardware as installed, ribbon cables and power distribution, field switches/relay contacts, IONET communications and unit-specific I/O assignment drawings.
Commissioning and Verification
Use DS200DTBBG1ABB only after confirming its complete nameplate, revision, configuration, connections, and every affected system function.
Read and follow the named manufacturer source and applicable installation instructions before use. Verify the exact complete ordering code from the physical nameplate.
1
Use the unit-specific I/O assignment and wiring drawings; do not move a field wire based only on a generic DTBB terminal number.
2
Isolate the Mark V contact-input wetting supply and verify absence of voltage before disconnecting the board or field wiring.
3
After installation, verify TCDA communications, every affected contact state, alarm logic and trip permissive under an approved test plan.
4
Observe the applicable wiring, grounding, approval, environmental and enclosure requirements.
5
Record the complete model, revision, configuration and commissioning results before returning the system to service.
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