fanuc 5t help

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Subject Author Date
fanuc 5t help jmorehouse 08-03-2006
Posted by on August 3, 2006, 7:21 am
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I have an old mazak microturn lathe (1979) I had the machine moved .
The electrician phased it backwards. After i corrected that my x and y
axises are now shaking and giving me servo alarms. Eventually the fuses
on the servos will blow. The axises move but are shakey . Could
something have fried or am i missing something???


Posted by D Murphy on August 3, 2006, 2:00 pm
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jmorehouse@samsonfabrication.com wrote in news:1154604106.970038.306020
@i42g2000cwa.googlegroups.com:

> I have an old mazak microturn lathe (1979) I had the machine moved .
> The electrician phased it backwards. After i corrected that my x and y
> axises are now shaking and giving me servo alarms. Eventually the fuses
> on the servos will blow. The axises move but are shakey . Could
> something have fried or am i missing something???
>
>

Unilikely that phasing has anything to do with it. It could be a loose
connection that acted up do to the move.

Did you check the incoming voltage at the new location? Is it the same?

What are the alarms shown?

Also, wouldn't it be the X and Z axes? Just wondering...

--

Dan

Scopulus est usquequaque nefas

Posted by jason on August 3, 2006, 2:43 pm
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D Murphy wrote:
> jmorehouse@samsonfabrication.com wrote in news:1154604106.970038.306020
> @i42g2000cwa.googlegroups.com:
>
> > I have an old mazak microturn lathe (1979) I had the machine moved .
> > The electrician phased it backwards. After i corrected that my x and y
> > axises are now shaking and giving me servo alarms. Eventually the fuses
> > on the servos will blow. The axises move but are shakey . Could
> > something have fried or am i missing something???
> >
> >
>
> Unilikely that phasing has anything to do with it. It could be a loose
> connection that acted up do to the move.
>
> Did you check the incoming voltage at the new location? Is it the same?
>
> What are the alarms shown?
>
> Also, wouldn't it be the X and Z axes? Just wondering...
>
> --
>
> Dan
>
> Scopulus est usquequaque nefas


I figured it out. there was a bad connection on the velocity control
unit. I removed the boards and cleaned the connections!!
thanks for the help though
jason


Posted by PrecisionMachinisT on August 3, 2006, 2:55 pm
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> The electrician phased it backwards.

Doubtful any harm was done there.

> After i corrected that my x and y
> axises are now shaking and giving me servo alarms.

Sounds as if someone messed with the velocity controller (s) adjustment
pots, else the feedback device has mechanically loosened....( doubtful as
your having problems w/ both axis ).

> Eventually the fuses
> on the servos will blow.

I recall there being circuit breakers....

> The axises move but are shakey . Could
> something have fried or am i missing something???


Excessive gain setting.

--

SVL







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