The Powerflex 755 has been operational for 2 weeks but is experiencing a fault with code 17 indicating input phase loss.
Ensure you check for sag or brownouts in your incoming voltage to prevent any issues. It's crucial to balance the load on each phase of the incoming voltage. Check for excessive DC noise in your AC and adjust the threshold in Parameter 463. Determine if you are running v/hz or sensorless vector and set your slip accordingly. Verify the number of poles in your motor and ensure it is correctly set in your drive. Remember, you can ignore a fault in Parameter 462, but proceed with caution to avoid damaging your drive. Remember to be specific when seeking help from knowledgeable individuals and provide detailed information about your application and troubleshooting efforts.
After successfully running a servo rack for more than 2 years, including through FAT testing and production, it suddenly experienced a phase loss fault. Upon investigation, it was discovered that one of the cables had not been properly connected to the contactor terminal and was simply leaning against it.
The Powerflex 755 is able to detect phase loss due to high levels of DC bus ripple, which could explain why some inquiries from robertmee seemed unrelated to power supply issues. It is possible that the problem does not stem from the incoming power source. As mentioned by robertmee, if your drive is faulting, it could be a positive sign. What specific question do you have? Keith.
I have encountered a similar issue with my Powerflex 755 as well. Code 17 generally indicates an issue with the power supply, so you might want to check the connections first. If everything seems alright there, then it could possibly be your drive input power circuit. Also, remember to check the distribution system for issues, such as power fluctuations, which might cause this fault. Definitely consult with an professional electrician or the manufacturer's technical support team if the problem persists.
Fault code 17 typically indicates an issue with power supply to the Powerflex 755. Make sure you check the input power connections to your drive. There might be a loose or broken wire that is causing the input phase loss. Alternatively, the problem could be external, such as a break in the power line or an issue with the power source itself. It would also be beneficial to check the wiring system continuity with the help of a multimeter. If issues persist, consider reaching out to a professional electrician or contact Allen Bradley's support for further assistance.
That fault code usually means the Powerflex 755 isn't detecting all three phases of the input power. I'd suggest verifying your input wiring just to make sure all connections are solid and tight. Another thing could be an issue with your power provider; it might be worth checking if there's a problem on their end. If none of this works, check with Allen Bradley support to diagnose any possible internal component faults.
It sounds like you might be dealing with a critical issue! A fault code 17 usually points to a problem with the power supply, so I’d recommend checking the input connections and ensuring that all wire connections are secure and properly seated. It might also be worth inspecting the input power source to make sure that there aren’t any fluctuations or interruptions that could be causing the phase loss. If everything looks good on that front, you could consider running a diagnostic or reaching out to the manufacturer for further troubleshooting steps.
It sounds like you've got a tricky situation with the Powerflex 755! A fault code 17 usually suggests there's an issue with one of the input phases, so I'd recommend checking the power supply connections and ensuring that all wiring is secure and functioning properly. It might also be worth testing the integrity of the incoming power to see if there are fluctuations that could be causing the input phase loss. If everything checks out and the issue persists, consulting the manual or reaching out to tech support might be your best bet!
It sounds like the Powerflex 755 is having some trouble with its input phase; it’s definitely worth checking the wiring and connections for any loose or damaged components. A code 17 can often indicate an issue with the power supply or a phase imbalance, so looking into those areas might help pinpoint the root cause. Have you tried running any diagnostics or monitoring voltages to see if there's a fluctuation?
It sounds like the Powerflex 755 is having some issues with its input phase—code 17 can be tricky! Make sure to check your power supply connections and confirm that all phases are balanced. Sometimes, a loose wire or a faulty breaker can cause that fault code. It might also be worth considering if there have been any recent changes in your electrical environment that could be affecting it. Good luck troubleshooting!
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Answer: 1. What does fault code 17 on Powerflex 755 indicate? - Fault code 17 on Powerflex 755 indicates input phase loss, suggesting a problem with the power supply to the drive.
Answer: - The Powerflex 755 has been operational for 2 weeks before experiencing the fault with code 17.
Answer: - Input phase loss on the Powerflex 755 could be caused by issues such as poor electrical connections, faulty wiring, or problems with the power source.
Answer: - To troubleshoot fault code 17 on the Powerflex 755, you can check the power connections, inspect the wiring for any damage, and ensure the power source meets the drive's requirements.
Answer: - Input phase loss can occur with the Powerflex 755 due to various reasons such as electrical issues or power supply problems, but it's not necessarily a common occurrence.
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