Re: [CAD_CAM_EDM_DRO] Speed range not working

How old are they? Is there a letter and number written on the case?

At 06:40 AM 8/31/2004 +0000, you wrote:

>Hello:
>I have 4 201 gecko drives, and I am having problems with 3 of them.
>These 3 drives work fine from 0 to about 23,733Hz, then from there
>up to 32,000Hz, it jerks up a little, it starts vibrating and the
>shaft of the stepper motor sometimes locks, im sure its loosing
>steps, from 32,000hz to 45,000 Hz it starts working fine again. The
>other drive works fine from 0Hz to 45,000 Hz. Thats how I know these
>3 geckos are not working properly. I have swapped steppers, port
>pins and everything seems to point that the geckos are not working
>properly. I am working with mach 2 version 6.00 with a P4 2.6Ghz PC.
>Can anyone tell what is happening?
>Best regards
>Fernando Mayrl