SPECIFICATIONS
Part No.: IS210DTAOH1A
Manufacturer: General Electric
Size: 33.0 cm high x 17.8 cm wide
Number of channels: 26
Size 8.6 cm wide x 16.2 cm high
Temperature: 0 to 60oC
Analog output current: 0-20 mA
Product Type: Simplex Analog Output Terminal Board
Availability: In Stock
Country of Manufacture: United States (USA)
Functional Description
IS210DTAOH1A is a Simplex Analog Output Terminal Board developed by GE. It is a part of Mark VI control system. The Simplex Analog Output (DTAO) terminal board represents a sophisticated solution tailored for DIN-rail mounting applications. The terminal board is crafted with a compact form factor, addressing the spatial constraints often encountered in industrial environments. Its sleek design prioritizes efficiency and ease of installation, ensuring seamless integration into a variety of control systems without compromising on performance.
Features
- Versatile Analog Output Channels: Featuring eight analog output channels, the DTAO board serves as a versatile interface between the VAOC I/O board and external devices. These channels efficiently transmit signals from the VAOC, streamlining connectivity and simplifying setup processes for enhanced operational efficiency.
- Tailored Compatibility and Limitations: Engineered exclusively for simplex-only applications, the board is purpose-built to seamlessly interface with the VAOC. It operates within a specialized framework and does not support duplex operation or compatibility with other I/O boards. This tailored approach ensures optimized performance within its designated scope of operation.
- Unified Connectivity for Seamless Integration: The terminal board facilitates unified connectivity through a single cable outfitted with a 37-pin D-type connector. This standardized cable configuration establishes a robust connection between the board and the VAOC rack, simplifying installation procedures and ensuring compatibility across systems.
- Scalability for Expanded Functionality: With support for scalability, the board allows for the connection of up to two boards to the VAOC, effectively doubling the available analog output channels to a total of 16. This scalability feature enables the adaptation of the system to meet diverse operational requirements and facilitates expansion as needed.
- Enhanced Signal Integrity and Reliability: Equipped with integrated circuits and noise suppression mechanisms akin to those found in larger TBAO terminal boards, the board ensures consistent performance and reliable signal transmission. This robust construction enables the board to maintain optimal functionality even in challenging industrial environments.
- Secure Terminal Block Configuration: High-density Euro-block type terminal blocks are permanently affixed to the DTAO board, providing secure connections for wiring tasks. Each terminal block incorporates two screw connections designated for the ground connection (SCOM), guaranteeing robust grounding for enhanced system stability and reliability.
- Efficient Diagnostic Capabilities: Embedded within the board is an on-board identification chip, facilitating seamless identification and communication with the VAOC for system diagnostic purposes. This feature enhances troubleshooting efficiency and aids in maintenance tasks, ensuring continuous system reliability.
Installation
- Ensure the absence of a shield terminal strip on the DTAO terminal board, as it does not require one for operation.
- Begin by mounting the plastic holder onto the DIN-rail securely. Slide the board into place within the plastic holder on the DIN-rail, ensuring a snug fit.
- Wiring Connection: Connect the wires for the eight analog outputs directly to the Euro-block type terminal block on the board. Refer to the provided figure for guidance on the correct wiring configuration. Ensure that driven devices connected to the analog outputs do not exceed a resistance of 500 ohm. The driven devices can be located up to 300 meters (984 feet) away from the turbine control cabinet, providing flexibility in system layout and installation. Typically, 18 AWG wires (shielded twisted pair) are used for wiring connections.
- Utilize the provided screws labeled 17 and 18 to establish the SCOM (ground) connection on the terminal block. It's essential to keep the ground connection as short as possible to maintain optimal system performance.
- If space optimization is necessary, DIN-type terminal boards can be stacked vertically on the DIN-rail. This stacking arrangement helps conserve cabinet space without compromising functionality.
Diagnostics
- Output Current Measurement: The board incorporates a series resistor to measure the voltage drop across it, indicating the output current. If either of the two outputs registers as unhealthy, the I/O processor generates a diagnostic alarm (fault) to alert of any issues.
- ID Device Interrogation: Each cable connector on the terminal board features its own ID device, which is read by the I/O controller during diagnostics. This ID device contains crucial information such as the terminal board's serial number, type, revision number, and the connector location (JR, JS, JT). If a mismatch is detected between this information and the expected values, a hardware incompatibility fault is triggered.
World of Controls has the most comprehensive collection of GE Mark VI components. Please contact WOC as soon as possible if you require any extra information.
Frequently Asked Questions
What is IS210DTAOH1A?
It is a Simplex Analog Output Terminal Board developed by GE.
How does the DTAO board indicate output current?
The board utilizes the voltage drop across a series resistor to indicate output current, providing a reliable method for monitoring current flow. Additionally, the VAOC generates a diagnostic alarm if any of the two outputs become unhealthy, ensuring prompt identification of potential issues.
How does the terminal board ensure compatibility and prevent hardware incompatibility?
Each cable connector on the terminal board is equipped with its own ID device, containing essential information such as the board serial number, type, revision, and connector location. During system initialization, the VAOC interrogates these ID devices. If a mismatch is detected, a hardware incompatibility fault is generated, ensuring seamless compatibility and preventing system malfunctions.
How is the current controlled for each output on the DTAO board?
For each output, the board measures the voltage drop across a local loop current sense resistor. This measurement is then fed back to the VAOC processor, which regulates the current to ensure accurate and stable output levels.
How does the board mitigate noise and surge on each output?
To maintain signal integrity, filters are employed on each output to reduce high-frequency noise and suppress surge near the point of signal exit. This ensures that the analog signals remain clean and free from interference, enhancing the reliability of the output signals.
What components are responsible for generating the controlled currents?
Within the VAOC, digital-to-analog converters (D/A converters) and drivers are utilized to generate the controlled currents for each output. These components work in tandem to convert digital control signals into precise analog output currents, ensuring accurate signal control and response.
