On Thu, 8 Dec 2016, andy pugh wrote:
Date: Thu, 8 Dec 2016 18:19:53 +0000
From: andy pugh <bodge...@gmail.com>
Reply-To: "Enhanced Machine Controller (EMC)"
<emc-us...@lists.sourceforge.net>
To: EMC developers <emc-developers@lists.sourceforge.net>
Cc: "Enhanced Machine Controller (EMC)" <emc-us...@lists.sourceforge.net>
Subject: Re: [Emc-users] [Emc-developers] Spindle speed signal
On 8 December 2016 at 18:10, Robert Ellenberg <rwe...@gmail.com> wrote:
Does anyone use a spindle encoder with only position output? In other
words, encoder position linked to motion.spindle-revs, but no input to
motion.spindle-speed-in?
I would imagine that it might be uncommon, but not unknown. For
example a serial encoder might not have velocity data.
I think thats true with the HM2 SSI BISS and FANUC encoders
Not sure if its possible but you might consider doing something
like the PID component which detects if pid.N.feedback-deriv
is connected and calculates a local d/dt velocity if not
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
?? George Fitch, Atlanta Constitution Newspaper, 1916
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