On Sat, 7 Nov 2020, andy pugh wrote:
Date: Sat, 7 Nov 2020 18:30:11 +0000
From: andy pugh <[email protected]>
Reply-To: "Enhanced Machine Controller (EMC)"
<[email protected]>
To: "Enhanced Machine Controller (EMC)" <[email protected]>
Subject: Re: [Emc-users] encoder vs headache and bad threads.
On Sat, 7 Nov 2020 at 18:03, Gene Heskett <[email protected]> wrote:
With the servo repeat rate of 1khz, and the high speed I am spinning this
encoder, up to 15k or so is there any chance I could get an advanced
warning of this condition
Set hm2.....encoder.N.quadrature-error-enable and watch the
quadrature-error pin?
--
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, 1912
The encoder error bit may catch it, also if you could measure the peak/peak
velocity noise and trip an error of ver a certain threshold
A better way might be to re-work the index logic in the driver so index
detection is always enabled, and the latched count at index is used as
a sanity check of encoder operation.
Peter Wallace
Mesa Electronics
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