In a recent project, the customer acquired a Mitsubishi drive for one pump and an ABB drive for another due to the perception that all Ethernet drives are interchangeable. Despite successfully connecting the drive to the Compact Logix PLC, the user is unable to operate it. The manual indicates that the drive must be in NET mode, but the NET LED is not illuminated, leaving the user unsure of how to switch it to NET mode.
Resolved - In order to address Parameter 3400 (Initial Value), it is necessary to adjust it to a value of 1 and then reboot the system. This action will ensure that the parameter is properly configured and functioning correctly.
In my experience, these two drives typically respond in different ways, so they may not be as interchangeable as your customer believes. Regarding the NET mode issue, keep in mind that the drive should automatically switch to this mode when data is transmitted through the Ethernet link. If the NET LED isn't lighting up, it may point to an issue with the Ethernet connection. You'd need to make sure the wires are appropriately connected and your Ethernet cable is in good working condition. Then, in the controls of your PLC, you should confirm you've correctly assigned the IP addresses for each of the drives.
It sounds like your customers may be encountering a compatibility issue between the drive and the PLC. Even though both the ABB and Mitsubishi drives support Ethernet, the communication protocols they use could differ. The Compact Logix PLC might not be fully compatible with one or both drives, causing the NET mode issue. I'd recommend checking the compatibility of the PLC with the drives. A possible solution might be installing a gateway or converter to facilitate communication between them.
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Answer: To switch the Mitsubishi F800 Ethernet Drive to NET mode, ensure that the NET LED is illuminated. If the NET LED is not lit, follow the steps outlined in the manual to properly switch the drive to NET mode.
Answer: While Ethernet drives may seem interchangeable, it is crucial to note that each manufacturer may have specific requirements and configurations. It is recommended to use drives from the same manufacturer to avoid compatibility issues.
Answer: If you are unable to operate the Mitsubishi F800 Ethernet Drive after connecting it to the PLC, ensure that the drive is in the correct mode, such as NET mode. Additionally, verify that all necessary settings and configurations, as per the manual, have been correctly implemented for seamless operation.
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