Do I need to use COM terminals with Point Guard IO OB8S module or can I connect commons directly to -24vdc rail?

Question:

When using the A-B Point Guard IO OB8S module, do I need to utilize the provided COM terminals, or can I simply connect my commons from the field directly to my primary -24vdc rail?

Top Replies

You can safely skip using them, as I rarely do myself. Just make sure the 24VDC common you're connecting to matches the common supplied to the 1734-AENT(R) or the closest FPD/EP24DC module. This will ensure seamless integration and optimal performance.

Yes, you can connect your commons directly to your primary -24vdc rail. However, using the COM terminals provided gives you an additional layer of isolation between your field and logic sides. This could help minimize any potential noise or voltage irregularities from affecting the rest of your system. In the long run, it's a good practice to utilize all provided options for maintaining a clean signal.

While you can technically connect your commons directly to your primary -24vdc rail, I'd highly recommend utilizing the COM terminals provided on the A-B Point Guard IO OB8S module. This module was designed to handle common return paths in a systematic way, providing great convenience and stability, as well as reducing the risk of potential electrical noise interfering with your signals. Not to mention, using the feature as designed would promote better practices for troubleshooting and maintenance in the future. So yes, it requires a bit more wiring work initially, but it's worth it in the long run.

You can definitely connect your commons directly to the primary -24VDC rail, but using the provided COM terminals is generally recommended for ensuring proper grounding and minimizing noise in your signals. It's always a good practice to follow the manufacturer's guidelines for the best performance and reliability. Plus, the COM terminals might help with any potential voltage discrepancies, especially if you're working with multiple devices.

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Frequently Asked Questions (FAQ)

FAQ: 1. Do I need to use COM terminals with the Point Guard IO OB8S module?

Answer: - It is recommended to utilize the COM terminals provided with the Point Guard IO OB8S module for proper wiring and functionality.

FAQ: 2. Can I connect commons directly to the -24vdc rail without using COM terminals?

Answer: - While it may be possible to connect commons directly to the -24vdc rail, it is advised to follow the manufacturer's instructions and use the COM terminals for optimal performance and safety.

FAQ: 3. What is the purpose of the COM terminals on the Point Guard IO OB8S module?

Answer: - The COM terminals serve as common connection points for the field commons, ensuring proper grounding and functionality of the module.

FAQ: 4. Are there any risks associated with bypassing the COM terminals and connecting commons directly to the -24vdc rail?

Answer: - Bypassing the COM terminals may lead to improper wiring, potential safety hazards, and could affect the performance of the Point Guard IO OB8S module. It is recommended to use the COM terminals as instructed.

FAQ: 5. Is there a specific wiring configuration recommended for the Point Guard IO OB8S module?

Answer: - Yes, following the manufacturer's guidelines for wiring, including the use of COM terminals, is crucial for the correct installation and operation of the Point Guard IO OB8S module.

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