SPECIFICATIONS
Part No.: IS200VAOCH1A
Manufacturer: General Electric
Product Type: Analog Output Board
Number of channels: 16
Frame rate: 100 Hz
Technology: Surface mount
Temperature Operating: -30 to 65oC
Availability: In Stock
Country of Manufacture: United States (USA)
Series: Mark VI
Functional Description
IS200VAOCH1A is an analog output board developed by GE. It is a part of Mark VI control system. The Analog Output Board (VAOC) is designed to manage and control 16 analog outputs, each capable of delivering up to 20 mA. These outputs are critical for interfacing with various external devices and systems, providing precise analog signals as required.
Features
- Control of Analog Outputs: It controls 16 individual analog outputs. Each output is capable of delivering a 20 mA current, ensuring accurate and reliable signal transmission to connected devices.
- Terminal Board Connections: These analog outputs are wired to two terminal blocks on the Analog Output Terminal Board (TBAO). This setup allows for organized and secure connections, facilitating easy maintenance and troubleshooting.
- Cabling and Rack Integration: The terminal board (TBAO) is connected to the rack using cables with molded plugs. This connection links the terminal board directly to the processor board, ensuring seamless data transmission and control. The rack houses the processor board, which is integral to the system overall functionality.
- Digital to Analog Conversion: It receives digital values from the controller via the VME backplane, facilitated by the VCMI (VME Communication Interface). These digital values represent the desired output states for the analog signals. It then converts these digital values into analog output currents. This conversion process is precise and critical for ensuring that the analog outputs accurately reflect the intended control signals.
- Feedback and Control Mechanism: The actual output current is measured directly on the terminal board (TBAO). This real-time measurement is crucial for maintaining accuracy and reliability in the analog signals. The measured current is fed back to the VAOC, where it is compared with the intended output. The VAOC uses this feedback to adjust and control the output current, ensuring that it matches the desired value accurately.
Installation
- Power Down the VME I/O Processor Rack: Before installing the board, ensure that the VME I/O Processor rack is powered down. This step is crucial for safety and to prevent any potential damage to the board or the rack components during installation.
- Insert the Board: Carefully slide the board into the designated slot in the VME rack. Align the board with the guides to ensure it fits properly.
Once the board is aligned, use your hands to push the top and bottom levers inward. This action will seat the edge connectors firmly into place, ensuring a secure and reliable connection between the board and the VME backplane.
- Secure the Board: After seating the board, tighten the captive screws located at the top and bottom of the front panel. These screws help to secure the board firmly within the rack, preventing any movement or disconnection that could occur due to vibrations or other external factors.
- Power up the VME Rack: With the board securely installed, power up the VME rack. It is essential to restore power to check the functionality and proper installation of the board.
- Check Diagnostic Lights: Once the rack is powered up, observe the diagnostic lights at the top of the VAOC board's front panel. These lights provide immediate feedback on the board's status and functionality. Ensure that all diagnostic lights indicate normal operation. If any lights signal an error or fault, refer to the troubleshooting guide to diagnose and resolve the issue.
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 IS200VAOCH1A?
It is an analog output board developed by GE
How many analog outputs does the VAOC support?
It supports 16 analog outputs, each capable of delivering a current range of 0-20 mA.
What components are involved in generating the controlled currents for the analog outputs?
The board contains a digital-to-analog (D/A) converter and a driver that work together to generate the controlled currents for each of the 16 analog outputs.
How is the output current measured?
The output current is measured by monitoring the voltage drop across a resistor located on the terminal board. This voltage drop provides a precise measurement of the current being output by each channel.
Can you explain the role of the D/A converter?
The D/A converter converts digital values received from the controller into corresponding analog signals. These analog signals are then used to generate the controlled currents for the outputs.
