7i96 estop loop problem

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08 Jul 2021 17:36 #214039 by MarkD2
This is my first time using the MESA 7i96 board.  The estop button and screen controls seem to work ok but I am not getting a change on pin 14 with 24 volts on pin 13.
What did I do wrong?

MarkD 

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08 Jul 2021 18:07 #214042 by PCW
Replied by PCW on topic 7i96 estop loop problem
If you have +24V on Pin 13 you have the output polarity of SSR0 backwards

OUT+ goes to the positive voltage source
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08 Jul 2021 19:46 #214045 by MarkD2
Replied by MarkD2 on topic 7i96 estop loop problem
I moved the wires but the output is active all the time. What did I miss?

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08 Jul 2021 19:47 #214046 by PCW
Replied by PCW on topic 7i96 estop loop problem
Is the LED for SSR0 on?

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08 Jul 2021 19:59 #214047 by MarkD2
Replied by MarkD2 on topic 7i96 estop loop problem
yes

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08 Jul 2021 20:12 #214048 by PCW
Replied by PCW on topic 7i96 estop loop problem
I guess I would trace these signals
(the first token after net) with halshow,
starting with estop-out

net estop-loopout iocontrol.0.emc-enable-in <= estop-latch.0.ok-out
net estop-loopin <= iocontrol.0.user-enable-out => estop-latch.0.ok-in
net estop-reset iocontrol.0.user-request-enable => estop-latch.0.reset
net remote-estop estop-latch.0.fault-in <= hm2_7i96.0.gpio.010.in_not
net estop-out <= estop-latch.0.fault-out

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10 Jul 2021 18:54 #214208 by MarkD2
Replied by MarkD2 on topic 7i96 estop loop problem
How can I invert ssr.00.out.00 as I need to have it active when out of estop.

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10 Jul 2021 21:20 #214216 by PCW
Replied by PCW on topic 7i96 estop loop problem
I would wire it to estop-latch.N.ok-out

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10 Jul 2021 22:47 #214222 by MarkD2
Replied by MarkD2 on topic 7i96 estop loop problem
I changed net estop-out <= estop-latch.0.fault-out to estop-out <= estop-latch.0.ok-out and now I get an error that estop-latch.0.ok-out is already connected to estop-loopout

Can you send me to the appropriate place in the manual so I can understand how this works?
Thanks for your patients

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10 Jul 2021 22:59 - 10 Jul 2021 23:06 #214223 by PCW
Replied by PCW on topic 7i96 estop loop problem
Then instead change

net estop-out => [HMOT](CARD0).ssr.00.out-00

to

net estop-loopout => [HMOT](CARD0).ssr.00.out-00


There is the manual page for estop_latch, io and iov2 but there does
not seem to be a LinuxCNC guide to setting up Estop.

Skunkworks video is a nice introduction however:

forum.linuxcnc.org/24-hal-components/379...w-things-work-series

 
Last edit: 10 Jul 2021 23:06 by PCW.
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