On Wednesday 10 February 2021 00:08:41 John Dammeyer wrote:
Quick question.
There's a multi-axis operation in progress. For whatever reason one
of the servos throws out a fault and of course stops.
Should just the enables to the other servo drives be removed or should
power be cut to all drives.
OK, on my system (hommade analog velocity servo amps) the
E-stop removes motor DC power from the amps, as well as
removing enable. The encoders continue to feed back to the
PPMC encoder card, so position alignment is never lost. So,
I can hit E-stop any time I want to, then click a button to
go back to live.
Just last week I got an unexpected following error. Didn't
understand it immediately, but a closer look showed that a
drill bit had just ran through the work and into a parallel
bar. I had to adjust the fixturing to make sure the
parallel was not right under the hole.
Jon
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