On Fri, 16 Aug 2019, Les Newell wrote:
Date: Fri, 16 Aug 2019 17:18:01 +0100 From: Les Newell <[email protected]> Reply-To: "Enhanced Machine Controller (EMC)" <[email protected]> To: [email protected] Subject: Re: [Emc-users] Homing following error (was PID feed forward)I think it is same issue as you. I'm still getting following errors on homing even though command-deriv is unconnected. It does depend rather on where the machine was before it started homing.Les
Are you threads in the order:hardware read ...
motion ... pid ... hardware write ? Is index enable connected to the PID component? If these are both correct and you get this error, could you plot commanded-position feedback-position index-enable PID output in HALScope (trigger on index-enable falling edge) when homing the first time?
I am seeing this on one of my axis, after upgrading from 2.5 to master. It moves to the home switch, turns around to find the encoder index pulse, and after it finds the index, it faults with a following error - this only happens when I start Linuxcnc, ie when machine home isn't known. If I home all again, it works fine. This only happens on my regular axis, the other 2 are gantry pairs, which don't fault. I had FF1 set and command-deriv unconnected and it faults. Setting all FF settings to 0 still faults. If I connect the encoder velocity (from 5i20)to command-deriv - it faults when I jog - the velocity coming out of the pinis very noisy. Is this the same problem? _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users_______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
Peter Wallace
Mesa Electronics
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