Hello everyone, I am currently troubleshooting an AB 193-EDN and encountering an issue with the "Average %FLA" showing 70-75, while my clamp meter is reading about 4.9 on all three legs. Our E1 overload is set to trip at 20amps, so I am confused if this is a percentage display or if I need to adjust the scaling. I am aiming to show this information on a HMI for maintenance purposes. Any advice or insights would be greatly appreciated.
In Chapter 4 of Publication 193-UM006A-EN-P, you can find information on monitoring the average motor current. This data is presented as a percentage of the motor's rated current, which is determined by the dial setting on the E1 Plus Overload Relay. The current is displayed in increments of 5, providing valuable insights for tracking motor performance.
Your question is intriguing! The "%FLA" reference generally pertains to the percent Full Load Amperage, suggesting how hard your device is working relative to its design capacity. Theoretically, if it's reading 70-75%, then the device is operating significantly under its intended load. For your clamp meter to be reading 4.9A while the device is showing 70-75% FLA, the motor could possibly have been wired or rated for a much higher amperage. You may want to check your motor nameplate and verify its FLA rating. If your overload is set to trip at 20A and you're only reading 4.9A, it all points to the possibility that the motor is significantly underloaded or has wrong settings. As for showing this on a HMI, once you've verified and adjusted your settings, it should be a fairly straightforward process directly from your device software or connected PLC.
Hey there! It certainly sounds like you're dealing with a complex issue. Based on your description, it suggests that there might be a discrepancy between the measured values and what's being shown. It's fair to point out that "Average %FLA" (Full Load Ampere) is typically a percentage of the full load current rating of a motor, and it doesn't directly convert to an absolute current value (amperes) that a clamp meter might read. The AB 193-EDN (I'm assuming it's an overload relay) interpretation could be a cumulative average of all the three phases. That might be why you are seeing a %FLA value higher than you anticipated. Just to clarify, have you updated the %FLA rating to match the motor FLA on the relay? If not, you might need to do so. Also, double-check your overload relay's user manual or AB's customer support; they may be able to guide you through ensuring the scaling is set correctly.
It sounds like you’re dealing with an interesting issue there! The "Average %FLA" likely represents the average running current as a percentage of the full-load amperage rating for your motor, which could explain the discrepancy if the scaling isn’t set correctly. Make sure you verify the full-load amp rating for your motor and check if it matches your settings in the AB 193-EDN. It may also help to double-check the wiring and ensure there are no loose connections that could affect the readings. If everything looks good, you might want to revisit your scaling to ensure the HMI accurately reflects real-time data for better maintenance insights.
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Answer: Answer: The discrepancy could be due to scaling issues or incorrect settings on the AB 193-EDN. It is important to verify the scaling and configuration of the device.
Answer: Answer: The "Average %FLA" is typically a percentage display based on the Full Load Amps (FLA) of the motor. However, adjustments may be needed if there are discrepancies with actual current readings.
Answer: Answer: To ensure accurate monitoring, it is important to calibrate and verify the settings of the AB 193-EDN, including the scaling factors and configurations related to current measurements.
Answer: Answer: You can start by checking the scaling settings, verifying the accuracy of the clamp meter readings, and consulting the device's manual or technical support for guidance on troubleshooting and calibration.
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