Joint on limit errors only when G540 is active

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01 Jan 2023 03:48 #260699 by trainwreck
Replied by trainwreck on topic Joint on limit errors only when G540 is active
I think I may have figured out the issue with my charge pump/watchdog. The G540 specifies that the signal must be >10khz, but according to wiki.linuxcnc.org/cgi-bin/wiki.pl?About_Charge_Pumps my charge pump will only be 500Hz since pncconf added it to my servo thread. When I get a chance to test I will create a new thread with a period of 50,000 nanoseconds which should produce the proper 10khHz signal.

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01 Jan 2023 16:02 - 01 Jan 2023 16:07 #260710 by PCW
With Mesa hardware, you set the G540 charge pump frequency with the
chargepump stepgen velocity command so no new thread is needed.
Last edit: 01 Jan 2023 16:07 by PCW. Reason: clarify
The following user(s) said Thank You: trainwreck

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01 Jan 2023 19:02 #260724 by trainwreck
Replied by trainwreck on topic Joint on limit errors only when G540 is active
I got my last two problems fixed thanks to the direction given here. Mentioning using a stepgen for the charge pump led me to this thread , which has all of the information I needed to get the issue solved. Thanks!
The following user(s) said Thank You: tommylight

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