Re: [CAD_CAM_EDM_DRO] Re: I let the smoke out... motors

Weyland wrote:

>On Sunday 14 September 2003 01:57 am, turbulatordude spake:
>
>
>
>>The questions for the mop-up operations are....
>>
>>did you blow any caps ?
>>
>>
>
>It does not appear so...
>
>
>
>>second question, is there any scorch/burn/carbon on the Geckos ?
>>
>>
>
>Again, it does not *APPEAR* so...
>
>I've been web searching all night, and have found
>out that the NTE331 is indeed a Power Regulator/Switch.
>I'm lame, but I think I figured out what happened.
>
>Tell me what you think -
>
>In wiring the motors incorrectly, I caused a condition where they were
>constantly pulling from the power supply, causing an overload of the
>regulator, making it blow up quite impressively.
>(loud, bright, and blew the heat sink right off it)
>
>

Ohh, you had the motors wired from one motor terminal on the Geckos
to ground? Yikes! The Gecko drives (both servo and stepper) do not sense
current from the power side of the bridge, and so this will likely be fatal
to the Gecko. It may also destroy the motor(s).

Jon


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