IS200DTBBH2A - Contact Input Expansion Termination Module

SPECIFICATIONS:

Part Number: IS200DTBBH2A
Manufacturer: General Electric
Series: Mark V LM
Product Type: Contact Input Expansion Termination Module
Technology: Surface Mount
Analog output current: 0-20 mA
Operating temperature: -30 to 65°C
Size: 23.8 cm high x 8.6 cm wide
Repair: 3-7 Day
Availability: In Stock
Weight: 2lbs
Country of Origin: United States
Manual: GEH-6153

FUNCTIONAL DESCRIPTION:

IS200DTBBH2A is a Contact Input Expansion Termination Module manufactured and designed by General Electric as part of the Mark V LM Series used in GE Aeroderivative Gas Turbine Control Systems. The Contac Input Termination Module (DTBB) is located in , , and . DTBB connects the last 46 contact inputs to TCDA in the same digital core. The inputs can be configured to invert the contact sense in the TCDA IO Configuration to provide failsafe contact input functionality. DTBB terminal boards and contact output (relay/solenoid) signals from the two TCRA boards. The signals are transmitted over the IONET to the TCQC board in , if is installed and the CTBA terminal board in . The TB2 terminal board allows the excitation voltage for contact inputs (DTBA and DTBB terminal boards in the digital cores) to be 125 V dc from core or 24 V dc from

core.

DTBB terminal boards have jumpers that can be used to isolate field grounds by disconnecting the interrogation voltage. They are connected in groups of eight contact inputs. These jumpers should only be changed while the turbine is not running. Each contact input is optically isolated on the TCDA board, which is in Location 1 of the digital I/O core.

DTBB CONNECTORS:

• JRR - Connects the contact inputs to the TCDA board.
• JY - Receives 125 V dc power from the DTBA board.
• JRS/T - Typically not used.
• The hardware document in Appendix B and the signal flow diagrams in Appendix D have more specific information about connectors on this terminal board.

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FREQUENTLY ASKED QUESTIONS:

What is a Contact Input Expansion Termination Module?

The Contact Input Expansion Termination Module is a device used to expand the number of contact inputs available on a control system or device. It typically terminates the input signals and provides a consolidated interface for multiple inputs.

What types of inputs can be connected to the Expansion Module?

The Expansion Module typically supports various types of digital inputs such as dry contacts, volt-free contacts, or digital signals from sensors or switches.

How is the Expansion Module installed and configured?

Installation involves connecting the input devices to the module and then connecting the module to the control system. Configuration settings such as input type and addressing are usually set via software or DIP switches on the module.