Troubleshooting a Kinetix 5700 PO-31: Motor Stuck in Loop with Running and Stopped Statuses

Question:

Despite attempts to change the status from stopped to running, a random drive remains stuck in a continuous loop. The display alternates between "1. running" and "2. stopped" without throwing any faults. Even after a power cycle, the issue persists as the statuses switch to "1. stopped" and "2. running." Eventually, the problem shifts to another servo motor.

Top Replies

When checking your axis tree, it is important to look out for indicators such as Axis State, Module Faults, Group Fault, Motion Fault, Initialization Fault, Guard Fault, and Start Inhibited. If all of these indicators show OK and the Axis State is stopped, there may be a MAS instruction running in your logic. This could be a key factor in diagnosing any issues related to the axis operation.

Thank you, I will review those promptly.

This sounds like a classic case of a control logic issue. You might want to focus on your PLC (Programmable Logic Controller) code and ensure it's not causing any inconsistencies in your drive status. Sometimes, even a minute glitch can introduce unwanted loops. Also, don't overlook the possibility of a communication lag. Servo motors are pretty sensitive to time delays and such discrepancies might be causing the alternating statuses. The moving problem indicates that it could be a systemic or software issue rather than a hardware problem. Just throwing my two cents in, hope this helps!

It seems like you're dealing with a rather vexing issue. A few things come to mind. Firstly, it might be a software issue so you could try checking for any updates or patches. Alternatively, an incompatible driver might be the problem. Make sure the driver's version matches the servo motor’s model. Finally, if the problem still persists, you might want to check the circuitry. It could be short-circuiting, causing the system to loop between statuses. Of course, these are just educated guesses, so I'd definitely recommend reaching out to a professional if none of these solutions work.

From my experience dealing with similar issues, it sounds like this could well be an encoder problem. The continuous loop of statuses might be due to conflicting signals from the motor encoder. It's like the drive system is caught in a tug-of-war and can't decide which state to be in because of the mixed signals it's receiving. I'd suggest checking the integrity of your encoder signals or possibly even replacing the encoder, if the problem persists with different motors. Remain mindful of potential wiring issues as well, as a backup plan.

This sounds like a classic example of a control signal issue. It's possible that your drive is getting conflicting signals and can't decide which state to be in. I'd suggest first checking your control connections and make sure there's no fault in wiring or corruption in the control signal. If everything checks out but the problem still persists, it might be a firmware problem. Consider updating your drive's firmware or reaching out to the manufacturer for technical support.

More Replies β†’

Streamline Your Asset Management
See How Oxmaint Works!!

βœ…   Work Order Management

βœ…   Asset Tracking

βœ…   Preventive Maintenance

βœ…   Inspection Report

We have received your information. We will share Schedule Demo details on your Mail Id.

To add a comment, please sign in or register if you haven't already..   

Frequently Asked Questions (FAQ)

FAQ: FAQs:

Answer: 1. Q: Why is my Kinetix 5700 drive stuck in a continuous loop between running and stopped statuses? The drive may be experiencing a fault or issue that is causing it to get stuck in this loop, such as a communication problem or a hardware malfunction.

FAQ: 2. What should I do if my servo motor status keeps switching between running and stopped without throwing any faults?

Answer: You may need to troubleshoot the drive and motor connections, check for any loose wiring or faulty components, and ensure proper configuration settings are in place.

FAQ: 3. Why does the issue persist even after a power cycle on the Kinetix 5700 drive?

Answer: The persistent issue could indicate a more complex problem that requires further investigation, such as firmware updates, parameter adjustments, or potential hardware replacements.

FAQ: 4. Is it common for the problem to shift to another servo motor in the system?

Answer: Yes, if the root cause of the issue is not specific to a particular motor but rather a system-wide issue, it is possible for the problem to affect multiple motors in the setup.

Ready to Simplify Maintenance?

Join hundreds of satisfied customers who have transformed their maintenance processes.
Sign up today and start optimizing your workflow.

Request Demo  β†’