On Thu, 8 Jul 2021, andrew beck wrote:
Date: Thu, 8 Jul 2021 01:47:18 +1200
From: andrew beck <andrewbeck0...@gmail.com>
Reply-To: "Enhanced Machine Controller (EMC)"
<emc-users@lists.sourceforge.net>
To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
Subject: Re: [Emc-users] spindle orientation help for a 7i77 card looking for
configs to study
Hey I do have npn proxy switches. They run on 6v how do I power Them
though?
Can I use 24v field io?
You can, but you have to make sure that the prox ground lead does not become
disconnected or you will feed 24V to the input.
Also some NPN prox's have built in pullups so may source 24V to the
output when off. You can check this by measuring the prox output when powered by
24V (make sure to check both states)
On Thu, Jul 8, 2021, 1:40 AM Peter C. Wallace <p...@mesanet.com> wrote:
On Thu, 8 Jul 2021, andrew beck wrote:
Date: Thu, 8 Jul 2021 01:34:02 +1200
From: andrew beck <andrewbeck0...@gmail.com>
Reply-To: "Enhanced Machine Controller (EMC)"
<emc-users@lists.sourceforge.net>
To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] spindle orientation help for a 7i77 card
looking for
configs to study
Also when you say Pull down resistor can I just solder that between the
pnp
prox output wire and the encoder input?
This would be a resistor between the prox output and ground
On Thu, Jul 8, 2021, 1:27 AM andrew beck <andrewbeck0...@gmail.com>
wrote:
Looks like I bought the wrong type of switch then lol.
Do you think I'll lose accuracy with a resistor?
Remember this is my index pulse for spindle..
On Thu, Jul 8, 2021, 1:15 AM Peter C. Wallace <p...@mesanet.com> wrote:
On Wed, 7 Jul 2021, andrew beck wrote:
Date: Wed, 7 Jul 2021 20:47:35 +1200
From: andrew beck <andrewbeck0...@gmail.com>
Reply-To: "Enhanced Machine Controller (EMC)"
<emc-users@lists.sourceforge.net>
To: "Enhanced Machine Controller (EMC)" <
emc-users@lists.sourceforge.net>
Subject: Re: [Emc-users] spindle orientation help for a 7i77 card
looking for
configs to study
peter you found it lol!
I have the spindle turned on by a standard output from the 7i77 card
anyway
so didn't check that the spindle enable signal was turning on the
hm2_5i25.0.7i77.0.1.spinena pin
i just went through it again and double checked stuff and netted the
spinena pin also and it works. I didn't realise that the analog out
value
only works if the spinena is on. but I know now
so next issue is I have a 5v pnp prox that I want to put on the
spindle
for
a index sensor as my motor/gearbox ratio is not 1-1.
PCW can I use a 5v pnp sensor straight into the 7i77 encoder input
same
as
I would do with the field io?
The encoder inputs have a 2K pullup resistor to 5V so you would need a
relatively stiff pull down resistor on the output of the PNP sensor for
that to
work (say 270 ohm)
ps john. I will add post up my config once I have it working real
nice
for
everyone to copy. anyone that has a 7i77 card should be able to just
plug
in and get spindle orientation so long as they have a suitable vfd
regards
Andrew
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On Wed, Jul 7, 2021 at 3:38 AM Peter C. Wallace <p...@mesanet.com>
wrote:
On Tue, 6 Jul 2021, andrew beck wrote:
Date: Tue, 6 Jul 2021 18:35:26 +1200
From: andrew beck <andrewbeck0...@gmail.com>
Reply-To: "Enhanced Machine Controller (EMC)"
<emc-users@lists.sourceforge.net>
To: "Enhanced Machine Controller (EMC)" <
emc-users@lists.sourceforge.net
Subject: [Emc-users] spindle orientation help for a 7i77 card
looking
for
configs to study
hey everyone.
i have been messing around all day with my cnc mill trying to get
spindle
orientation working so that I can get my toolchanger working
I found a video on youtube from Tallas83 that showed what I want to
do
but
he used a 5i20 card and 7i33 and I am having trouble converting it
to
a
standard 7i77 mesa card set up.
https://www.youtube.com/watch?v=EoXoOYSFY2Q
I got it to load the new config eventually had to change all the
motion
pins to spindle.0 stuff but still getting a bit stuck when I issue a
m19
r0
command the spindle locks but doesn't rotate. and I can see on my
vfd
that
the frequency reference is not getting through even though in the
hal
configuration the hm2 analog 05 output is showing a value. If I
switch
back to my old config it fires right up so hardware is fine.
Is hm2_5i25.0.7i77.0.1.spinena true?
(analog out 5 has a separate enable)
does anyone out there have this working that can help. I don't need
too
much hand holding I think and I have played with linuxcnc for
several
years
now. just getting stuck up against a wall.
regards
Andrew
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Peter Wallace
Mesa Electronics
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Mesa Electronics
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