The VFD is not experiencing tripping at elevated current levels, leading to motor failure. The specific VFD model in question is from KEB, with the following details: Make - KEB, Type - H6-10H6BBBB-21B0.
Have you reviewed the drive configuration of your vehicle? Explore the drive configuration settings for optimal performance.
During a project, we had a drive installed to run a fan. The factory default settings for motor protection were significantly higher than the motor nameplate. This led to two motors smoking when crud built up in the duct, causing the fan to rub against the sides. It wasn't until someone checked the drive settings and properly set the FLA/OL settings that we were able to prevent further damage. It's likely that you may also have a similar issue with your drive settings, although I am not familiar with your specific drive model.
It's interesting that the KEB H6-10H6BBBB-21B0 VFD isn't tripping under elevated current levels, as that could definitely point to a configuration or calibration issue. Have you checked the current settings and protection parameters in the drive’s software? Sometimes, the overload settings might be too high or the trip thresholds not calibrated for your specific application. Additionally, make sure the motor parameters are correctly set in the VFD, as those can influence the protection mechanisms too. If all else fails, it might be worth reaching out to KEB’s support for their insights!
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Answer: 1. Why isn't the KEB VFD tripping at high current levels? - The KEB VFD may not be tripping at high current levels due to various reasons such as incorrect settings, faulty components, or an issue with the protection system.
Answer: - To troubleshoot the KEB VFD, you can check the settings, inspect for any loose connections, test the components, and verify the functionality of the protection system.
Answer: - Common causes for a VFD not tripping at high current levels include incorrect overload settings, a malfunctioning thermal protection system, or a fault in the current sensing circuit.
Answer: - It is not safe to continue operating the motor if the VFD is not tripping at high current levels, as this can lead to motor failure and pose a safety risk. It is important to address the issue promptly.
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