On Tue, 12 Mar 2019, Gene Heskett wrote:
Date: Tue, 12 Mar 2019 14:08:34 -0400
From: Gene Heskett <ghesk...@shentel.net>
Reply-To: "Enhanced Machine Controller (EMC)"
<emc-users@lists.sourceforge.net>
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] More for PCW
On Tuesday 12 March 2019 11:17:05 Peter C. Wallace wrote:
On Tue, 12 Mar 2019, Gene Heskett wrote:
Date: Tue, 12 Mar 2019 06:12:23 -0400
From: Gene Heskett <ghesk...@shentel.net>
Reply-To: "Enhanced Machine Controller (EMC)"
<emc-users@lists.sourceforge.net>
To: emc-users@lists.sourceforge.net
Subject: [Emc-users] More for PCW
Greetings Peter;
The 7i76d has a spindle encoder, so I'm looking for suggestions as
to how to drive it.
The ER11 chuck has doubleD flats, but placing ATS-667's there
precludes using a wrench to tighten a tool, so thats out.
The top/rear of the ER11 has a slinger disk around 1.25" in
diameter, currently ummolested by any markings, located about 1/4"
above the doubleD flats. Has anyone pulled the collet, and made cuts
to drive ATS-667's, which would need two for balance symmetry,
effectively making a doubleD out of the slinger which could then be
sensed with the ATS-667's. Or perhaps painted so that
photo-reflective sensors, if fast enough, could read the paint. At
24k revs, what kind of paint wouldn't fly off?
There is I think, an output available from the vfd too but I've no
clue if its needing isolation or with the poor docs we have for this
vfd, how to enable it. I have not noted an ac voltage on the
spindle-+ or speed wires, so the isolation may be in the vfd.
But two problems there, first being the top of the 8 bit value of
the first 4 inputs being around 38 volts, considerable higher than I
would expect from the vfd, and 2, I've just read thru the docs for
the 7i76, hostmot2, hm2_pci, and sserriel and setsseriel, without
finding out how to enable mode 1 so the first 4 inputs become analog
enabled. Nor how much of a speed penalty there might be if those
modes are enabled.
So some guidance is needed. I think it would be nice if the pyvcp
tach worked, which it isn't now.
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
To enable mode 1 or 2 you add this token to the loadrt hm2_pci line:
sserial_port_0=1xxx
or
sserial_port_0=2xxx"
This is in the hostmot2 manual page
Not really.
Not in a context that mentions analog. What is there writes about gpio
modes, but no mention of what "mode" is defined as.
This is in the 7I76 manual, the mode meanings cannot be specified in the
hostmot2 manual page since its really specific to the sserial remote and can
mean almost anything depending on the sserial remote
So am I to assume, from what I do read there, that sserial_port_0=1111
would make the first 4 inputs analog sensitive? But no matter, its a
config error to hm2_pci.
But sserial_port_0=1xxx is precisely right. Now I see 4 analog inputs.
There is no way I could derive that from the man page text.
Thats true, you need to look at the manual page in conjunction with the 7I76
manual.
We'll experiment. Thank you.
first thing of note is:
task: 89749 cycles, min=0.000054, max=0.093368, avg=0.006010, 3 latency
excursions (> 10x expected cycle time of 0.005000s)
But the servo-thread time is set to 1 millisecond, so where is it getting
the "expected .005"?
This is not related to real time at all, just tasks polling time
of motion
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
Peter Wallace
Mesa Electronics
(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
