On Sun, 29 Jan 2012, Viesturs L?cis wrote:
> Date: Sun, 29 Jan 2012 14:04:43 +0200
> From: "[UTF-8] Viesturs L?cis" <viesturs.la...@gmail.com>
> Reply-To: "Enhanced Machine Controller (EMC)"
> <emc-users@lists.sourceforge.net>
> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
> Subject: Re: [Emc-users] Servo tuning - wtf?
>
> Peter, just as the name of threads says, I am trying to tune servo
> motors, not steppers :)
> I just checked - the supply voltage is 27,9 VDC, because 7i39 drives
> have 28 VDC limit.
>
> Ohh, and there is update:
> The motor that yesterday worked fine at 4000 mm/min, today is not
> working fine at that speed - it also stalls and starts oscillating at
> relatively high frequency... Just as the name of thread says - I have
> no idea wtf is wrong with this machine.
As I metioned earlier, please check if you are losing/gaining encoder counts,
this will cause symptoms like you are seeing.
Peter Wallace
Mesa Electronics
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