IS200TDBSH8A - Simplex Contact Input / Output Terminal Board

SPECIFICATIONS

Part No.: IS200TDBSH8A
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Input filter Hardware filter, 4 ms
Size: 17.8 cm wide x 33.02 cm high
Temperature: -30 to + 65oC
Max response time on: 25 ms typical
Max response time off: 25 ms typical
Contact material: Silver cad-oxide
Technology: Surface-mount
Product Type: simplex contact input / output terminal board
Availability: In Stock
Series: Mark VIe

Functional Description

IS200TDBSH8A is a simplex contact input / output terminal board developed by GE. It is a part of the Mark VIe control system. Within Mark VIe systems, the PDIO I/O pack collaborates seamlessly with the board. This I/O pack is effortlessly integrated via a D-type connector, establishing communication with the controller through Ethernet. A singular connection point facilitates PDIO connectivity, offering the option for one or two network connections from the PDIO to the controllers.

Configuration

• Board Configuration: The board itself does not feature any jumpers or hardware settings for configuration. Instead, it serves as a versatile interface for connecting external devices and sensors to the control system, providing flexibility and scalability without the need for manual adjustments.
• Option Board WROBH1 Configuration: The option board, designed to control relays, includes six jumpers that control the application or removal of power to each relay. By default, all six jumpers are installed on the board during production, ensuring that power is supplied to each relay. However, when a relay is intended for use as dry contacts without power distribution, the corresponding jumper is removed from the board.
• Option Board WROFH1 Configuration: The option board, responsible for fuse monitoring and voltage sensing, does not feature any jumpers for configuration. Instead, the inclusion or exclusion of a series fuse for each relay is determined by the terminal point used as the relay common. If direct use of the fuse voltage sensing circuit as a voltage detector is desired, the associated WROF fuse may be removed for each relay.
• Option Board WROGH1 Configuration: Similar to the board, the WROGH1 option board does not incorporate any jumpers for configuration purposes. Instead, the corresponding fuse for each relay may be removed if the relay is intended to provide dry contacts without power distribution. This flexibility allows for customization based on specific application requirements.

Fault detection

• Separate Contact Pair: In relay position feedback, a dedicated contact pair is utilized solely for the purpose of providing feedback on the relay's position or state. This contact pair is distinct from the contacts used to control the load or perform other functions.
• Monitoring Relay State: The feedback contact pair is designed to change its state based on the position of the relay. For example, when the relay is in its default or resting position, the feedback contacts may be open. Conversely, when the relay is activated or energized, the feedback contacts may close.
• Continuous Monitoring: The status of the feedback contacts is continuously monitored by the system's monitoring circuitry or control unit. This monitoring ensures that any changes in the relay's position are promptly detected and acted upon.
• Fault Detection: If a fault occurs, such as a relay failing to energize or de-energize as expected, the feedback mechanism detects this discrepancy. For instance, if the feedback contacts do not change state as anticipated when the relay is activated, it indicates a fault in the relay's operation.
• Alerting and Response: Upon detecting a fault through the relay position feedback mechanism, the system can trigger an alert or alarm to notify operators or initiate corrective actions. This proactive approach helps mitigate potential issues before they escalate and impact system performance or safety.

The WOC team is always available to help you with your Mark VIe requirements. For more information, please contact WOC.

Frequently Asked Questions

What is IS200TDBSH8A?
It is a simplex contact input / output terminal board developed by GE under the Mark VIe series.

How is the contact input wetting voltage monitored on the TDBS board?
The contact input wetting voltage is continuously monitored by the board. If the wetting voltage drops below 40 percent of the nominal voltage, a diagnostic alarm, or fault, is triggered and latched, indicating a potential issue with the input circuit.

How does the TDBS board provide diagnostic feedback to PDIO?
The board offers diagnostic feedback to the PDIO by monitoring an isolated set of contacts on each relay. This feedback mechanism allows the PDIO to accurately assess the state of each relay and detect any anomalies or faults.

What is the role of isolated voltage feedback when using WROB with TDBS?
When utilizing WROB with the TDBS, isolated voltage feedback is employed to detect the status of the six fuse pairs on the board. This feedback mechanism enhances diagnostic capabilities by providing real-time information about fuse status.

How is isolated voltage feedback utilized with WROF and WROG options on TDBS?
When employing WROF or WROG options with the TDBS board, isolated voltage feedback is utilized to monitor each fuse individually. If voltage is present and the fuse is open, a diagnostic alarm is generated, alerting users to potential issues with the fuse.

Can the diagnostic feature be disabled in PDIO configuration?
Yes, the diagnostic feature associated with isolated voltage feedback can be disabled in PDIO configuration if desired. This allows users to use the feedback circuit even when the fuse is removed, providing flexibility in diagnostic management.