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Recent content by ozdemir23

  1. ozdemir23

    AC Dual Motor Sync, Ramp Up/Down, Dual Limits...

    Thank you everyone who helped me understand the things I don't understand. Educating and listening and asking the right questions yielded the results I was looking for. Thanks Mike and Scotty and jraef.
  2. ozdemir23

    AC Dual Motor Sync, Ramp Up/Down, Dual Limits...

    Mike- I completely understand regarding having this designed over forums. It was not my intent. I wanted to make sure I wasn't asking for something only NASA would do, and it looks like I'm not. It appears as though this has been done before and we just haven't talked with the right people...
  3. ozdemir23

    AC Dual Motor Sync, Ramp Up/Down, Dual Limits...

    I also wanted to mention the duty involved in terms of cycles. The motors won't see hi speed or hi use at all through out its life cycle. On a daily basis, if the building is opened and closed 5 times, that means the motors were ran about 3 minutes each time for a total of 30 minutes a day...
  4. ozdemir23

    AC Dual Motor Sync, Ramp Up/Down, Dual Limits...

    I am located in the Chicago land area. I don't need obstacle detection beforehand so the current sense is all i will need, but it should not allow the skew to be too great. I am not looking for a skew tolerance within thousands of an inch like our heavy machinery in the shop, but more liberal...
  5. ozdemir23

    AC Dual Motor Sync, Ramp Up/Down, Dual Limits...

    Sreid. Can you expand? What or how do string encoders work? Vector drives? What about ramping up and down? Obstacle detection? Master guides slave? Sounds like you know what we need. Plc? I need someone to design, supply and deliver.
  6. ozdemir23

    AC Dual Motor Sync, Ramp Up/Down, Dual Limits...

    I am not opposed to paying for an electrical engineer to design the system with all of the variables or expectations laid out up front. I'm not sure what you suggested for the crane control system is what will work for us. The application involves an aluminum frame that is at grade in a...
  7. ozdemir23

    AC Dual Motor Sync, Ramp Up/Down, Dual Limits...

    Hello. I am in the minority in our company regarding the design of a system that I believe is not as complicated as everyone keeps saying or believing to be true. First off, I am not an electrical engineer but a structural engineer by education and practical engineer by life. We have a large...

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