SPECIFICATIONS
Part No.: IS200VAICH1CBC
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Temperature: 0 to 60 °C
Size: 26.04 cm x 1.99 cm x 18.73 cm
Technology: Surface-mount
Product Type: Analog Input/Output Board
Availability: In Stock
Series: Mark VI
Functional Description
IS200VAICH1CBC is an analog input/output board developed by GE. It is a part of the Mark VI control system. The Analog Input/Output (VAIC) board plays a pivotal role in converting analog signals to digital values and vice versa within the Mark VIe system. Itis equipped to handle 20 analog inputs and control 4 analog outputs.
Each terminal board accommodates 10 inputs and 2 outputs, facilitating efficient signal management and distribution.
Signal Transmission
- Cables connect the terminal board to the VME rack housing the VAIC processor board.
- Upon receiving analog inputs, the VAIC board converts them into digital values and transmits them over the VME backplane to the VCMI board, which then forwards the data to the controller.
- For analog outputs, the VAIC board converts digital values into analog currents, which are then directed through the terminal board into the customer circuit.
Redundancy Support
- The VAIC board supports both simplex and triple modular redundant (TMR) configurations to enhance system reliability.
- In TMR applications, input signals on the terminal board are distributed to three VME board racks (R, S, and T), each housing a VAIC.
- Output signals are synthesized using a proprietary circuit that utilizes all three VAICs. This redundancy ensures continued operation even in the event of a hardware failure.
- If a VAIC board fails, it is removed from the output circuit, while the remaining two boards continue to generate the correct current output.
Simplex Configuration
- In a simplex configuration, the terminal board supplies input signals to a single VAIC board.
- Responsible for processing all input signals and generating the required output currents, simplifying the setup for applications that do not require redundancy.
Installation
- Power Down the VME Processor Rack: Before proceeding with the installation, ensure that the VME processor rack is powered down to prevent any potential damage to the equipment or electrical hazards.
- Slide in the Board: Carefully slide the V-Type board into the designated slot in the VME processor rack. Align the edge connectors of the board with the corresponding slots in the rack.
- Secure the Board: Using your hands, push the top and bottom levers on the board to seat its edge connectors firmly into place within the rack. This ensures a secure and stable connection between the board and the rack.
- Tighten the Captive Screws: Once the board is properly seated, tighten the captive screws located at the top and bottom of the front panel. This further secures the board in place and prevents any movement during operation.
- Connect Cables to Terminal Boards: Make the necessary cable connections to the terminal boards by attaching them to the J3 and J4 connectors located on the lower portion of the VME rack. These connectors are of the latching type, ensuring a secure and stable connection for the cables.
- Power Up the VME Rack: After completing the cable connections, power up the VME rack. Monitor the diagnostic lights located at the top of the front panel to ensure that the installation was successful.
- Check Diagnostic Lights: Verify the status of the diagnostic lights to confirm proper operation of the V-Type board. Refer to the section on diagnostics in the documentation for detailed information on interpreting the diagnostic lights.
Other Features
- Number of Channels: Supports a total of 24 channels, comprising 20 analog inputs (AI) and 4 analog outputs (AO). These channels are distributed across two terminal boards, providing efficient signal management and distribution.
- Input Converter Resolution: High-resolution 16-bit analog-to-digital converter (A/D converter), providing exceptional precision in converting analog signals to digital values. The effective resolution of the A/D converter is 14 bits, ensuring fine-grained measurement accuracy.
- Scan Time: The normal scan time is 10 milliseconds (ms), equivalent to a scanning frequency of 100 Hz. Inputs 1 through 4 have a higher scan rate, allowing them to be scanned at a frequency of 200 Hz for rapid data acquisition in critical applications.
- Measurement Accuracy: The board boasts measurement accuracy better than 0.1% of full scale, ensuring precise and reliable data acquisition across the entire input range. This high level of accuracy enhances the quality and reliability of data collected by the VAIC board, supporting critical decision-making processes in industrial operations.
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 IS200VAICH1CBC?
It is an analog input/output board developed by GE under the Mark VI series.
What do the LEDs on the VAIC front panel indicate?
A flashing green LED signifies the normal RUN condition. A solid red LED indicates a FAIL condition. An orange LED displays STATUS, indicating a diagnostic alarm condition.
What diagnostic checks are performed by the board?
Hardware limit checking monitors analog input levels. System limit checking ensures input levels stay within configurable bounds.
How are diagnostic signals managed?
Diagnostic signals can be latched individually and reset using RESETDIA.
Where can I find details about individual diagnostics?
Information about diagnostics is available in the toolbox, offering insights into each input channel's status.
