IS230STTC2ASTTC2AG01 - Thermocouple Input Assembly

SPECIFICATIONS

Part No.: IS230STTC2ASTTC2AG01
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Number of channels: 12 channels
Thermocouple: E, J, K, S, T
Span: -8 mV to +45 mV
Temperature Operating: -30 to 65oC
Product Type: Thermocouple Input Assembly
Availability: In Stock
Series: Mark VI

Functional Description

IS230STTC2ASTTC2AG01 is a Thermocouple Input Assembly developed by GE. It is a part of Mark VI series. This terminal board plays a vital role in monitoring and managing turbine temperature, ensuring accurate data collection and effective operational control.

Design and Features

• Compact and Flexible Installation: The terminal board is designed for DIN-rail or flat mounting, allowing it to fit into various setups. This versatility ensures easy integration into existing systems without requiring major modifications.
• High-Density Terminal Blocks: The board incorporates Euro-Block type terminal blocks, offering secure connections and ease of maintenance. Two types of terminal blocks are available, catering to diverse system requirements.
• Thermocouple Inputs: Equipped with 12 thermocouple inputs, the terminal board captures precise temperature data. The PTCC Thermocouple Processor Board (Mark VIe systems).
  The VTCC Thermocouple Processor Board (Mark VI systems). Signal Conditioning and Cold Junction Reference The on-board signal conditioning and cold junction reference are identical to those found on larger boards, such as the TBTC board, ensuring accuracy in temperature readings.
• On-Board ID Chip: An integrated ID chip identifies the terminal board to the processor. This feature facilitates system diagnostics, ensuring compatibility and streamlining fault detection.

Operational Capabilities

• The terminal board connects to an I/O pack or board that contains the analog-to-digital (A/D) converter. Supplies excitation for the cold junction (CJ) reference. Transmits data for the 12 thermocouple signals, CJ reference, and board ID through connector JA1.
• The inclusion of a cold junction reference ensures accurate thermocouple readings, accounting for temperature variations at the connection point and maintaining system reliability.

Diagnostic Features

• Each thermocouple input undergoes hardware-limit checking, ensuring it operates within preset high and low thresholds. Exceeding these limits results in affected input being excluded from further scanning. A composite diagnostic alarm to alert operators of the issue.
• The terminal board’s ID chip stores essential details, including the serial number, board type, revision number, and connector location. Any mismatches result in a hardware incompatibility fault, preventing incorrect installations.
• To detect open circuits, a small current is injected into each thermocouple path. If a circuit is open, the system generates a low temperature reading, enabling quick fault identification and resolution.

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

Frequently Asked Questions

What is IS230STTC2ASTTC2AG01?
It is a Thermocouple Input Assembly developed by GE under the Mark VI series.

What are the diagnostic capabilities of the board?
The board features hardware-limit checking, open circuit detection, and an ID chip for diagnostics. These functions help detect faults such as temperature range violations or mismatched board IDs, ensuring system integrity.

How is the card installed?
It is designed for DIN-rail or flat mounting, offering flexibility in installation. It connects to the I/O pack or board through connector JA1, which facilitates data transmission and cold junction reference excitation.

What types of systems use the Assembly?
It is primarily used in turbine control systems for gas, steam, and hydro turbines. It is also employed in industrial processes and power plants for precise temperature management.

Can the Assembly detect open circuits?
The board injects a small current into each thermocouple path to detect open circuits. If a thermocouple opens, the system generates a low temperature reading for quick fault identification.