CAD CAM EDM DRO - Yahoo Group Archive

Re: Gecko power surge at shutdown

Posted by Doug Fortune
on 2005-04-17 09:06:45 UTC
Glen wrote:
>I'm running a couple of servos ( not connected to the lathe yet ), and
>I noticed the servo running through a Gecko 320 buzzes a fair bit when
>not moving but the main concern I have is that when I switch off the
>controller, the servo spins for a second as if a capacitor is
>discharging or something. It doesn't make any difference which servo I
>use. This would move the Z axis on the lathe about 2" in a random
>direction. Has anyone had this problem ?

That seems odd and is unacceptable.

Possibly the power to the encoders goes away 1 second too quickly,
causing a runaway servo?

Maybe power the 5V-to-encoder lines independently (or a big capacitor )
just to test the theory?

cheers
Doug Fortune




































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Discussion Thread

roboticscnc 2005-04-16 22:35:32 UTC Gecko power surge at shutdown and reduction ratios Doug Fortune 2005-04-17 09:06:45 UTC Re: Gecko power surge at shutdown Keith Clark 2005-04-18 06:35:31 UTC Re: Gecko power surge at shutdown