Error: motor phase A and phase B disconnected on drivers 2



  • i got this error but printer continues to print

    Firmware Name: RepRapFirmware for Duet 2 WiFi/Ethernet
    Firmware Electronics: Duet WiFi 1.02 or later
    Firmware Version: 2.02RC1(RTOS) (2018-08-31b4)
    WiFi Server Version: 1.21
    Web Interface Version: 1.22.3

    0_1536240582136_console.txt

    just a example

    13:57:22: : Error: motor phase A disconnected on drivers 2
    13:57:17: : Error: motor phase B disconnected on drivers 2
    13:57:13: : Error: motor phase A disconnected on drivers 2
    13:57:08: : Error: motor phase B disconnected on drivers 2
    13:57:04: : Error: motor phase A disconnected on drivers 2
    13:56:59: : Error: motor phase B disconnected on drivers 2
    13:56:55: : Error: motor phase A disconnected on drivers 2
    13:56:50: : Error: motor phase A disconnected on drivers 2
    13:56:45: : Error: motor phase A disconnected on drivers 2
    13:56:40: : Error: motor phase A disconnected on drivers 2
    13:56:35: : Error: motor phase A disconnected on drivers 2
    13:56:29: : Error: motor phase A disconnected on drivers 2
    13:56:24: : Error: motor phase A disconnected on drivers 2
    13:56:19: : Error: motor phase A disconnected on drivers 2
    13:56:14: : Error: motor phase A disconnected on drivers 2
    13:56:09: : Error: motor phase A disconnected on drivers 2
    13:56:04: : Error: motor phase A disconnected on drivers 2
    13:55:59: : Error: motor phase A disconnected on drivers 2
    13:55:54: : Error: motor phase A disconnected on drivers 2
    13:55:48: : Error: motor phase A disconnected on drivers 2
    13:55:43: : Error: motor phase A disconnected on drivers 2
    13:55:38: : Error: motor phase A disconnected on drivers 2
    13:55:32: : Error: motor phase A disconnected on drivers 2
    13:55:27: : Error: motor phase A disconnected on drivers 2
    13:55:22: : Error: motor phase A disconnected on drivers 2
    13:55:17: : Error: motor phase A disconnected on drivers 2
    thanks in advance .


  • administrators

    That's a known issue with 2.02RC1 when motors move very slowly. You can either ignore the messages, or revert to 2.02beta1.



  • @dc42 thanks for the response ... i will ignore the indication


  • administrators

    I am trying to reproduce this issue so that I can fix it, but so far I have failed. So I would like a little more information:

    • Please post your config.g file.
    • I assume that driver 2 drives the Z motor. Are the messages generated during Z movement when changing layers, or when doing Z hop during travel moves, or when applying bed compensation to printing moves? Or during some other type of move?

  • administrators

    I have just release firmware 2.02RC2 and I am about to create a thread about it. Please can you upgrade to that release and see whether the messages have gone.



  • FYI, I'm getting this same error on "2.02RC2(RTOS) (2018-09-07b2)"

    Only got it once, and really didn't even notice it until 10 minutes later. The printer wasn't printing anything at that time, but I might have been going through my "assisted manual leveling" routine. If so, and if it's in relation to my Z motor, my bed leveling routine does move Z slowly (for detecting a bltouch.) I didn't even see the error message until after I started a print (which is working fine.)

    Config.g is here: https://drive.google.com/open?id=1v9pR4ZOSNdoJxDbj4_IW-H9HO2PL0_oR
    bed.g is here: https://drive.google.com/open?id=15ya2fTVWHlyoPdo_iMwawhVKCId2HUlc
    and.. homeall.g is here: https://drive.google.com/open?id=153vnwFq9XBlJzI06V4ZoKemcK2k8DVzE

    I think those are all the files related. If you need more, please let me know.

    Take care
    Gary



  • @dc42 Thanks for the followup in a few days i will test it
    Good Work



  • Get the same error on 2.02RC2(RTOS) (2018-09-07b2). Heated up the Hotend and the bed and Uploaded a file to print- then it happend. (Duet Wifi 2 v1.03 - on my other Duet, a v1.04 it didn't happen yet)



  • @dc42
    the problem has been solved. - at least for me.

    I had the same issue today:
    It has been caused by wiring. I have seen that 1-2 of the 4 cables have been a little unloosen and the cable diameter had been reduced. This is why the motor hadn't had enough voltage and this caused the problem.

    Check your wiring guys 😉


 

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