Stepper Driver Config TB67S109AFTG

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08 May 2019 20:40 - 08 May 2019 20:46 #133190 by AgentWD40
I received my stepper driver in the mail today. I ordered a TB6600 but instead I believe I received a TB67S109AFTG.

I'll be trying to run a 2A nema 17 with a 7i76e. Can anyone advise me with the stepper timing settings? Step On-Time, Step Space, Direction Hold, and Direction Setup.

I checked the wiki page, no listing.

I found this datasheet but didn't find the answers directly so would need some help interpreting the info here.
www.google.com/url?sa=t&rct=j&q=&esrc=s&...fhpDHDH7eaMKgwm31FBK

Or should I just use 5000 for all 4 settings like the docs for pncconf suggests?
linuxcnc.org/docs/html/config/pncconf.html#_mesa_configuration
Last edit: 08 May 2019 20:46 by AgentWD40. Reason: spellin

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08 May 2019 20:47 #133192 by PCW
I would start with

STEPLEN 5000
STEPSPACE 5000
DIRHOLD 20000
DIRSETUP 20000

These should work for almost anything
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08 May 2019 20:56 - 08 May 2019 21:00 #133195 by AgentWD40
Will do.

For future reference Is this something I can tweak or fine tune even without mfr specs? If so is there a procedure for that outlined somewhere?
Last edit: 08 May 2019 21:00 by AgentWD40.

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08 May 2019 21:07 - 08 May 2019 21:07 #133197 by PCW
Unless the manufacturers specs are longer times there
is no advantage to tweaking these values

These are long enough to work with 99% of step drives
There is ~0 advantage of making them shorter.

The only case where shorter step times make sense is if you cannot reach
the maximum speed with the step timings. This is rarely an issue with step
drives unless you have very high ustep ratios.
Last edit: 08 May 2019 21:07 by PCW.
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