GE IS200TDBTH2ABC TDBT Discrete Input / Output Terminal Board
IS200TDBTH2ABC TDBT Terminal Board
GE Mark VIe Terminal Board
GE TDBT Terminal Board
Place of Origin:
USA
Brand Name:
General Electric
IS200TDBTH2ABC TDBT Terminal Board
,GE Mark VIe Terminal Board
,GE TDBT Terminal Board
GE IS200TDBTH2ABC TDBT Discrete Input / Output Terminal Board
The IS200TDBTH2ABC is a TDBT terminal board used for discrete field-signal termination within the GE Mark VIe PDIO architecture. The TDBTH2A version is specified for nominal 24 Vdc contact-input wetting voltage and TMR operation.
01 · Product Function
TDBT / PDIOThe IS200TDBTH2ABC provides the field termination interface for discrete contact signals and relay-controlled outputs in the Mark VIe control architecture. It connects field wiring with the associated PDIO I/O interface for signal routing.
02 · Technical Specifications
CORE DATAAdditional electrical data
| Input current | First 21 circuits: 2.5 mA; last 3 circuits: 10.4 mA |
| Relay contact ratings | Nominal 24 Vdc / 3.15 A; 48 Vdc / 1.2 A; 125 Vdc / 0.4 A; 120/240 Vac, 50/60 Hz / 3.15 A |
Wiring & voltage connection
| Typical field wiring | #18 AWG wiring is specified as typical in the Mark VIe hardware guide |
| Wetting-voltage connection | Supplied through the JE1 connector |
Relay Option Board
| Compatible option | IS200WROB option board |
| WROB function | Fused and sensed power distribution for the first six relay outputs and dedicated power for the last relay output |
| Not compatible | IS200WROF and IS200WROG are identified by the GE guide as not compatible with IS200TDBT |
03 · System Compatibility & Signal Architecture
MARK VIeThe TDBT is specified for the TMR PDIO discrete I/O arrangement. PDIO connection points interface with the I/O packs, which communicate with Mark VIe controllers over Ethernet.
- Three PDIO I/O packs connect to the TDBT.
- With TMR controllers, each PDIO has a network connection to its respective controller.
- The GE guide states that TDBT is not designed to operate correctly with a single PDIO I/O pack.
Replacement check
Compare the installed board marking and TDBT version with the existing Mark VIe signal architecture before ordering. For TDBTH2A, confirm the required 24 Vdc wetting-voltage arrangement.
04 · Installation & Wiring Reference
FIELD CONNECTION- TB1 is the relay-output section.
- TB2 is the contact-input section.
- TB2 terminals 1–24 serve inputs 1–12.
- TB2 terminals 25–48 serve inputs 13–24.
- Contact wetting voltage is supplied through JE1.
- JE1 pin 3 provides the negative/return wetting-voltage connection.
- Wetting-voltage terminals are connected in parallel from the board wetting-voltage supply.
- Field shields are terminated on a separate bracket according to the hardware guide.
05 · Applications & Fault Scenarios
FIELD USEThe board is associated with discrete signal interfacing in GE Mark VIe turbine-control environments, where field contact status and relay-controlled signals are handled through the discrete I/O architecture.
- Contact-input status acquisition from field devices.
- Discrete relay-output control within the control architecture.
- Replacement of an installed TDBT board when the exact board version has been identified.
Replacement-search triggers
Common search triggers include loss of wetting voltage, an unresponsive contact-input channel, or a relay/output channel requiring investigation. Match the installed part number and system arrangement before replacement.
06 · Documentation Reference
IDENTIFICATION07 · Delivery, Warranty & RFQ
AMIKON
08 · FAQ
4 QUESTIONSHow many contact inputs does the TDBTH2A version provide?
How many relay outputs are available on the TDBT?
Can the TDBT operate with only one PDIO I/O pack?
Which relay option board is associated with the TDBT?
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