IS230SRTDH1A - RTD Terminal Board

SPECIFICATIONS

Part No.: IS230SRTDH1A
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Number of channels: 8
Span: 0.3532 to 4.054 V
Maximum lead resistance: 15 ohm
Product Type: RTD Terminal Board
Availability: In Stock
Series: Mark VIe

Functional Description

IS230SRTDH1A is a RTD Terminal Board developed by GE. It is a part of Mark VIe control system. The board serves as a compact and versatile solution for integrating RTD inputs within control system setups. The board is designed to be compact, making it suitable for installation in various environments. It offers flexibility in mounting options, allowing it to be mounted on either a DIN-rail or a flat surface. This versatility ensures that the board can be easily integrated into different control system configurations.

Features

• Multiple RTD Inputs: Equipped with eight RTD inputs, provides ample capacity for connecting multiple RTD sensors. These inputs enable precise monitoring of temperature levels at various critical points within the system, ensuring accurate temperature measurement and control.
• High-Density Euro-Block Terminal Blocks: The board features high-density Euro-block type terminal blocks mounted directly onto the board. These terminal blocks provide a reliable and secure connection interface for wiring RTD sensors, ensuring stable and consistent signal transmission between the sensors and the processing unit.
• On-Board ID Chip: An on-board ID chip is integrated serving to identify the board to the I/O processor for system diagnostic purposes. This ID chip contains essential information about the board, such as its serial number, board type, and revision number. The identification capability provided by the ID chip enhances system diagnostics and troubleshooting efforts by providing valuable information about the status and configuration of the board.
• Integration with PRTD or VRTD I/O Processor: The board seamlessly connects to either a Programmable RTD (PRTD) or Voltage RTD (VRTD) Input/Output processor. This connection serves as an interface between the RTD inputs and the processing unit, facilitating efficient data transmission and processing for real-time temperature monitoring and control.

Installation

• Mounting Options: The board, along with a plastic insulator, mounts onto a sheet metal carrier, which is then installed on a DIN rail. Alternatively, the SRTD and insulator can be mounted directly onto a sheet metal assembly, which is secured within the control cabinet using bolts. This mounting flexibility accommodates different installation configurations and ensures secure placement of the SRTD board within the control system setup.
• Terminal Block Connection: Features a Euro-style box type terminal block with 36 terminals, providing a reliable connection interface for wiring the eight RTDs directly. These terminals are designed to accommodate typically #18 AWG wires, which are commonly shielded twisted triplets. This wiring configuration ensures stable and consistent signal transmission between the RTDs and the board, enabling accurate temperature measurement and monitoring.
• Shield Terminal Strip: It's important to note that there is no shield terminal strip included with this design. However, if shielded cables are used, the shield terminal connection can be established using an external mounting bracket supplied by GE or the customer. This ensures proper grounding and shielding of the cables, minimizing electromagnetic interference and maintaining signal integrity.
• Chassis Ground Connection: Terminals 25 through 34 on the Euro-style terminal block are not connected and are typically left unused. Additionally, terminals E1 and E2 serve as mounting holes for the chassis ground screw connection (SCOM). Proper grounding of the SRTD board is essential for electrical safety and system performance.

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 IS230SRTDH1A?
It is a RTD Terminal Board developed by GE under the Mark VIe series.

How are system limits monitored for each RTD input on the SRTD board?
Each RTD input with system limit checking based on configurable high and low levels. These limits can be adjusted to generate alarms when exceeded and can be configured for enable/disable and latching/non-latching behavior. The RESET SYS signal is used to reset out-of-limit signals. In Triple Modular Redundancy (TMR) systems, limit logic signals are voted, and the resulting composite diagnostic is available in each controller.

How is the resistance of each RTD checked for accuracy on the board?
The resistance of each RTD connected is continuously monitored and compared with the correct value. If the resistance deviates significantly from the expected range (either too high or too low), a fault is generated, indicating a potential issue with the RTD sensor.

How does the board ensure proper identification and compatibility with the I/O processor?
Each connector on the board is equipped with its own ID device, which is interrogated by the I/O processor board. This ID device contains essential information, including the terminal board serial number, board type, revision number, and connector location. If a mismatch is detected between the ID information and the expected configuration, a hardware incompatibility fault is triggered, alerting operators to potential issues with board compatibility.