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IS230STCC2ASTTC2AG01 - Simplex Thermocouple Input Terminal Board is available in stock which ships the same day.
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SPECIFICATIONS:
Part Number: IS230STCC2ASTTC2AG01
Manufacturer: General Electric
Series: Mark VIeS
Number of Channels: 12
Function: Simplex Thermocouple Input Terminal Board
Thermocouple Types Supported: E, J, K, S, T
Signal Range (Span): -8 mV to +45 mV
Maximum Lead Resistance: 15 Ohms
Memory: 128 MB SDRAM
Connector to I/O Pack: DC-37
Operating System: QNX
Programming: Boolean
Size: 16.2 cm high x 8.6 cm
Repair: 3-7 Days
Availability: In Stock
Weight: 2 lbs
Country of Origin: United States
Manual: GEh-6721D
FUNCTIONAL DESCRIPTION:
IS230STCC2ASTTC2AG01 is a Simplex Thermocouple Input Terminal Board manufactured and designed by General Electric as part of the Mark VIeS Series used in GE Distributed Control Systems. The Simplex Thermocouple Input (STTC) terminal board is a high-density thermocouple interface designed for accurate temperature measurement in control and protection systems. It supports 12 differential thermocouple inputs, each wired through Euro-block screw terminals that provide low contact resistance and secure field connections. The board connects directly to a single YTCC thermocouple I/O pack, which performs the A/D conversion and communicates temperature data to the control system.
Each input channel features on-board analog signal conditioning, including input filtering and amplification, to minimize noise, reject common-mode interference, and preserve signal integrity in electrically noisy industrial environments. The STTC also incorporates a precision cold junction reference (CJR) circuit, identical in design and performance to that used on the TBTC board, ensuring accurate thermocouple linearization and temperature compensation across the full operating range.
OPERATION:
The Simplex Thermocouple Input (STTC) terminal board operates by receiving low-level millivolt signals from up to 12 field-connected thermocouples through Euro-block terminals. Each thermocouple input is routed through dedicated analog signal-conditioning circuitry on the board, which provides input filtering and noise suppression to protect against electrical interference and transient disturbances commonly present in industrial environments.
A precision cold junction reference (CJR) circuit continuously monitors the terminal block temperature and applies real-time compensation to each thermocouple channel. This ensures accurate conversion of thermocouple voltages into temperature values regardless of ambient temperature variations at the connection point. The conditioned and compensated signals are then passed directly to the connected YTCC I/O pack, where high-resolution analog-to-digital conversion and thermocouple linearization are performed.
The YTCC pack processes the digitized temperature data and communicates it to the control system for monitoring, alarming, and control functions. The STTC itself contains no active control logic, ensuring deterministic operation, while its simplex configuration supports a single I/O path for applications that do not require redundancy. Continuous signal conditioning and CJR monitoring enable stable, repeatable temperature measurements during normal operation and dynamic process changes.
INSTALLATION:
IS230STCC2ASTTC2AG01 is mounted either on a standard DIN rail or on a flat panel within the control cabinet. The board should be securely fastened to minimize vibration and mechanical stress, with sufficient spacing provided for ventilation and accurate cold junction reference (CJR) sensing. Proper grounding practices must be followed to ensure electrical stability and reduce susceptibility to noise.
Thermocouples are connected to the Euro-block screw terminals with correct polarity and matching thermocouple extension wire. Shielded cables should be terminated according to site grounding standards to prevent interference. After completing field wiring, a single YTCC I/O pack is firmly connected to the STTC board, and wiring integrity checks should be performed before powering the system and verifying correct channel operation in the control configuration.
WOC maintains the largest inventory of OEM replacement parts for GE Distributed Turbine Control Systems, including both unused and professionally rebuilt boards, all backed by a comprehensive warranty. In addition to supplying parts, our skilled team can diagnose, repair, and restore faulty boards, ensuring minimal downtime and reliable performance. Available 24/7, our experts provide prompt technical support and guidance for all your automation and turbine control needs. Whether you require replacements, repairs, or system advice, WOC delivers fast, dependable solutions tailored to keep your operations running smoothly. For pricing, availability, or technical assistance, contact our team by phone or email today.
What is the IS230STCC2ASTTC2AG01?
It is a terminal board module used in the GE Speedtronic Mark VIe turbine control system. The board serves as an interface for wiring field devices like thermocouples and sensors to the I/O packs, enabling accurate signal transmission to the control system.
How many inputs or connections does it support?
The board supports multiple thermocouple or analog signal channels, depending on system configuration. Each channel is connected securely via terminal blocks and routed to the corresponding I/O pack.
How are the thermocouples connected to the board?
Thermocouples are connected via Euro-block screw terminals for secure, low-resistance connections. Proper polarity and matching thermocouple types must be observed to prevent measurement errors.
