Peter C. Wallace wrote:
> Which is a good illustration of the limitations of step/dir servos since 
> LinuxCNC can't "see" whats happening in the drive, which rules out a lot of 
> hardware fault mitigation strategies.
>   
Well, really, detecting all possible cases of a failed encoder is not 
that easy.
In this case, using my Gecko Interface board, LinuxCNC CAN see the encoder,
and would have E-stopped the system, IF it had seen uncommanded movement.
But, with the encoder not powered or otherwise not working, it gets no
indication of the runaway.

Jon

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