RoboticsStudent

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Posts posted by RoboticsStudent


  1. As my name implies, I am a robotics student, in my last year of classes, and we are in a pickle with using our Ultra 3000 servo drives. We got 3 of our 4 servo drive to work. This issue is that the first one goes to 0 almost right after hitting 3 on the 7 segment display. We checked settings and everything is the same, with the only difference is the node settings.

    We have tried changing node addresses so our issue drive went from 1 to 2. The issue followed the node assignment, so we switched the one that had the issue after the change back to 2 and set the original node 1 drive to node 5. Updated the PLC program so node 1 went to node 5 but after it didn't work we changed it back. 

    Other info:

    We are using an 8 axis sercos interface module, cat number with series - 1756 MO8SE B.

    We have replaced the node 1 drives 4 times, nothing changed but was worth a shot.

    Drive nodes 3 to 4 will count to 4 while node 1 goes to 0.

    Motors are all connected, we have tried with them not connected, node 1 will return to 0 while the other 3 give errors