Anilam Crusader M 3 Axis Mill UART Fail Error


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Thread: Anilam Crusader M 3 Axis Mill UART Fail Error

  1. #1
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    Default Anilam Crusader M 3 Axis Mill UART Fail Error

    Hello,

    I have an Anilam Crusader M 3-axis will and went to use it this afternoon and ran into a problem.

    I haven't used the mill in several months but it was working fine when I used it last.

    I went to upload a program from the computer to the control and the control just sat there and did nothing. It worked fine last time I used it.

    I re-checked everything in the software and made sure all settings matched and still no luck. I checked the cable and it is good. I also reset the memory on the control and re-entered all of the RS-232 settings.

    I used a jumper test on pin 2&3 and pin 6&20 and got a UART fail message. I then ran the onboard diagnostics and it gave me a DUART fail.

    The funny thing is that it will download from the control to the computer using RS-232 and give me the proper AUX0 code after it does it.

    I am not sure what board contains the UART?

    Any help greatly appreciated.

    Thanks,
    Steve

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    Default Help Troubleshooting Anilam UART Fail Error

    Hello,

    I posted last week about a UART problem I am having with my Anilam Crusader 3 Axis Mill.

    It worked fine several weeks ago and then last week it would not upload and gave me a UART Fail when I did a loop back test.

    I have since replaced the UART chip which was an NEC 8251 chip (UART Chip) and also replaced the Intel 8254 chip (Programmable Interval Timer). I also checked continuity from the DB25 connector the the card connection and all is good.

    I still get the error.

    Anyone have any idea how to troubleshoot this? Would bad capacitors on the board possible cause this?

    Thanks,
    Steve



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    Default Re: Anilam Crusader M 3 Axis Mill UART Fail Error

    Between 8251 and DB25 should be some more chips. Perhaps MC1488 line driver and MC1489 line receiver. These are for RS232 communication.

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Anilam Crusader M 3 Axis Mill UART Fail Error

Anilam Crusader M 3 Axis Mill UART Fail Error

Anilam Crusader M 3 Axis Mill UART Fail Error