Gantry not communicating with Puma 240
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  1. #1
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    Default Gantry not communicating with Puma 240

    The control is a Fanuc 21i-TB. After the machine was started up, after sitting for the weekend, it threw alarm 972, and 910. Ram parity, battery is good, checked with power on. There is a gantry/machine switch that needs to be in gantry position to load parameters. It's not loading, I/O boards have been changed, memory backed up, erased, reloaded. Nothing on I/O, everything blank. Ideas?

  2. #2
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    Check backplane. Have had several fail on 21i controls.

  3. #3
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    Quote Originally Posted by Tonytn36 View Post
    Check backplane. Have had several fail on 21i controls.
    You wouldn't happen to have a part number, also are you talking about a motherboard?

  4. #4
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    Problem solved:
    The machine software crashed overnight. Data was backed up, memory erased, then reloaded from floppy. The floppy didn't have the file for SRAM LCB, loader control board. An output board, slot one, had failed causing the problem in the first place. The file was found for another machine in Canada by the Fanuc tech support.


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