On 08/18/2020 12:13 PM, jrmitchellj wrote:
Hi Scott.
I have a Yaskawa V1000 on my spindle, and have installed a encoder on the
spindle.
Would you share what settings in the V1000 to get rigid tapping working
well? I have braking resistors installed, but don't know what variable to
change to bring them into play.
Usually, the braking resistors are handled automatically by
the drive, when it senses the DC bus voltage rising. You
usually have to tell it that a braking resistor is
available, and to use dynamic braking when needed (as
opposed to DC injection braking). Most of the other
settings are for conditions like speed ramp down when the
forward or reverse command go away. In the case of rigid
tapping, the analog speed command should be ramped down
smoothly by LinuxCNC and then the forward/reverse command
switched when the analog speed command is near zero.
Jon
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