Re: TURBO CNC "hangs up" (freezes) part 2 "i have a clue now."

you are the second that suggested the battery backup!! i have one
broken for a while!! TO BADDDDDDDDDD

the three phase motor and the power converter are grounded, the PC
Isnt because im using a temporary extention, wich doesnt have the
ground wire...

about the battery backup, do i have to run the PC, from the battery?
as if the power went off? or just use it plugged in into it and
runing from AC thrue it?

THANKS YOU ALL!

(DAVE, BILL AND GRAHAM)

MARCOS


--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Bill Newell"
<woodwelder@...> wrote:

>
> Hi Marcos,
>
> I don't think that a line filter will help you, as they

only "filter" high

> frequency noise. I would recommend a battery backup unit from a
> manufacturer such as Belkin (I use their 1000 VA unit). The

battery backup

> unit will filter dropouts and spikes caused by the motor. Install

the

> battery backup very close to the PC so that there is minimum AC

cord from

> the battery backup to the PC.
>
> There are all sorts of "grounding" problems that should be checked

first

> though, such as whether the PC is actually grounded through the

power cord

> and whether the other machinery is grounded as well. Your three

phase power

> converter could be causing your problem as well by injecting spikes

into the

> AC line.
>
> Have you thought of running the PC off a completely isolated AC

circuit?

>
> Do you have a computer savvy friend that could loan you a battery

backup

> unit for a couple of hours to see if it would help?
>
> Regards,
>
> Bill Newell
>
> -----Original Message-----
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of ink_shit
> Sent: Sunday, March 19, 2006 2:21 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] TURBO CNC "hangs up" (freezes) part 2 "i

have a

> clue now."
>
> well today i decide to give it another try...the machine jogs well

(I

> still didnt check again the X axis for its measures-difference)
> now i can certainly say that the computers, just frezzes a short

time

> after i turn my spindle "on" and the stepers keep runing, even if

it

> use the E-switch. (even without using the relay conected to

parallel

> port)
>
> i use a siemenes micromaster 420, to power a three phase 1hp motor.
> the micromaster is AC 220v input, and AC 380x3 output. its conected
> to the same powerline that the pc is, but i use an extention to
> conect the pc almost 15m far.
>
> so my first guess is : interference. but i dont know...is it high
> frec? or low frec "noise" ...in my opinion it should be high, but

the

> micromaster works as an frec converter, it changes the line frec,

not

> the voltage, so it keeps the 1hp even at 10 rpm on the motor, or
> 2500rpm.
> i use the motor, just to try at 5hz, 10hz and even 20hz on a 1HP

2400

> RPM motor. but the pc still freezes like a minute after i turn it on
>
> so i thinking on getting a line filter..but what type???
> THANKS IN ADVANCE
> MARCOS
>
>
>
>
>
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