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<DIV>Hi Yin,</DIV>
<DIV> Servo drive faults like that can happen if the drive is
poorly tuned, if there are hardware problems (for example with the feedback),
and also if the drive is commanded to drive the motor erratically. See if you
can run the drive and motor correctly with the drive manufacturer¡¯s software; if
so, then the problem is likely to be the commands that the drive is receiving
from your program.</DIV>
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<DIV style="font-color: black"><B>From:</B> <A title=long188103@163.com
href="mailto:long188103@163.com">Yin</A> </DIV>
<DIV><B>Sent:</B> Friday, December 11, 2015 1:20 AM</DIV>
<DIV><B>To:</B> <A title=etherlab-users@etherlab.org
href="mailto:etherlab-users@etherlab.org">etherlab-users</A> </DIV>
<DIV><B>Subject:</B> [etherlab-users] control problem in servo
motor</DIV></DIV></DIV>
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<DIV> Hi, I have encountered a problem and have no idea about
the reason.<BR>I wrote an application program by using the etherlab ethercat
library and <BR>tested the servo in profile velocity mode. I set the mode,
target velocity<BR>and wrote controlword to switch to operation state.
<BR> But curiously, sometimes it run successfully and
sometimes not. For the <BR>unsuccessful times, the error was almost over current
or over speed, but the<BR>program was the same one. I tried to change target
velocity to small, the error<BR>occurred as usual except changing to zero. The
servo would be ok if I recovered<BR>it's configuration or just did
nothing.<BR> I really want to know the reason about this
problem, is it my program have <BR>something wrong? <BR><BR></DIV></DIV>
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