Brother TC-225 / TC-229 adventure!

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31 Jul 2017 02:45 #96715 by ihavenofish
hmm, I see the first half of that is easy enough, haha. (I'm at home now, so no machine in front of me, just reading the docs). just tie that button (axis.0.amp-enable-out) to an output to that relay.

so its more now attaching the brake release to that, timed a few seconds afterward.

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31 Jul 2017 03:46 - 31 Jul 2017 03:46 #96718 by rodw
This was discussed on another thread in the last couple of days.
forum.linuxcnc.org/39-pncconf/33069-help...i73-on-my-mill-going

Use the machine-on signal to turm on your main relay.

Then send machine-on to a timedelay component to enable your brake. Easy!

timedelay has an on delay and an off delay pin so you can decide when to trigger it when you turn it off. Probably with a time off delay of 0.
Last edit: 31 Jul 2017 03:46 by rodw.

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31 Jul 2017 04:08 #96719 by ihavenofish
cool thanks!

ill read through that.

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31 Jul 2017 09:25 #96733 by andypugh

so its more now attaching the brake release to that, timed a few seconds afterward.


Do you want it to be a few seconds later every time? Is there an Amp-ready signal from the Z-axis drive that could be used instead? That seems like it might be a better way.

a time-delay on a HAL signal is very easy, though.

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31 Jul 2017 11:28 #96749 by ihavenofish
well, when the normal control starts up... the brake disengages a second or so after the power engages. it seems not to be relying on feedback from the amp (because it does it even with the amps control cable disconnected.

the only feedback from the amp besides encoder we get is an alarm which I think only goes high for an error.

so I'm not sure if there is a "smart" way to release the brake here.

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31 Jul 2017 11:55 #96754 by andypugh
Connecting the brake to the alarm sounds like a good idea to me.
Does the alarm go off after amp-enable, or is it always off?

Have you worked out how to use the timedelay HAL function?

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31 Jul 2017 12:13 #96756 by ihavenofish
I'm at work so ill figure that out tonight.

the alarm - hmmmmm. that's one scenario didn't look at. I bet it does. that would make it pretty sensible, as the drives are powered on their control side when the machine starts - before the main power is engages, so it stands to reason they would alarm until they have full power.

thanks

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01 Aug 2017 03:31 #96805 by ihavenofish
So first roadblock.
Error could not insert module.... invalid parameters.

Down at the bottom... config num encoders 6 but only 2 available.


What did I do wrong?

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01 Aug 2017 03:58 #96806 by ihavenofish
Nevermind. I have the 7i76 firmware on it Dr. My router. Bahhhhhh

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01 Aug 2017 09:51 #96815 by andypugh
Have you solved this now?

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