Re: [CAD_CAM_EDM_DRO] Servo motors with Geckos get hot when idle.

From my experience you will get this to happen if you have the gain cranked
too high. It was more prevalent with the older model without the anti-dither
circuit, but even the new revision can be made to exhibit the same effect.
If the motor is dithering to aggressively it will start to heat. What I
found when I had the problems with the newer revision drives was that I had
the gain and dampening out of sync with each other. The effect was that at
rest the motors would be very still with 1 - 2 dither moments a second.
But, every now and then they would stop and be dithering at a much more
rapid rate. When that happened they would start heating quickly. If I moved
the axis they would often calm down. The cure was to retune the drive.

Tim
[Denver, CO]
http://www.KTMarketing.com/CNC.html

----- Original Message ----- >
>
> Hi
> Sometimes one of my servos will get scorching hot when I leave them
engaged but idle over a period of 30 minutes to an hour. It doesn't happen
all the time and it's not the same servo every time. When I'm running them
they don't get hot at all.
> Any ideas on this?
>
> Thanks
> Derek
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/