About fault reset during EtherCAT synchronization

sanyosd2
2021-02-17
2021-03-10
  • sanyosd2

    sanyosd2 - 2021-02-17

    A few millimeters after synchronizing with the slave in EtherCAT communication, the "Fault Reset" bit is automatically set to TRUE (see attached file). I want to disable this, is there any way?

     
  • eschwellinger

    eschwellinger - 2021-02-18

    What does this error in the drive report?
    I would try to solve the root cause..(DC sync problem?)

     

    Last edit: eschwellinger 2021-02-18
  • sanyosd2

    sanyosd2 - 2021-02-22

    There are no errors in the drive. "Fault Reset" bit is automatically set regardless of whether the drive is in error.

     
  • eschwellinger

    eschwellinger - 2021-02-22

    Only the MC_Reset FB set the bit in the Controlword...

     
  • sanyosd2

    sanyosd2 - 2021-02-22

    In the project, there is no program, only the system configuration (see attached file).Why is the Controlword set?

     
  • eschwellinger

    eschwellinger - 2021-02-22

    hm..is this only on startup?
    but how cares? Does this lead to any unwanted action?

     
  • sanyosd2

    sanyosd2 - 2021-02-22

    The problem seems to occur when the axis reference (AXIS_REF) is initialized. The reason for this is that the "Fault Reset" bit is set when SMC3_ReinitDrive is executed.
    It is no problem to reset the drive error explicitly by executing MC_Reset or SMC3_ReinitDrive. However, if the drive error that occurred before the establishment of EtherCAT communication is reset in a non-explicit way (this phenomenon), it may cause unexpected problems and should be avoided.

     
  • eschwellinger

    eschwellinger - 2021-03-02

    but isn't this a slave problem?
    All these other drives could deal with this!?

     
  • sanyosd2

    sanyosd2 - 2021-03-10

    I understood that the problem is on the slave side.
    Since this phenomenon can be avoided by the PLC program, we will try to program it according to the slave.

     

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