Hello again guys,
Well, the situation is this: The machine always turns on with all it's
functions working properly, with the exception of the screen which
sometimes works and sometimes does not (when it fails sometimes there's no
signal at all on the LCD monitor, and sometimes there are white
On 12/9/23 10:19, John Figie wrote:
Gene
Yes I understand the catastrophic failure mode of Buck converters. But what
is BBLB?
Built By Lowest Bidder, John. Slanguage I assumed everybody understood.
;o)>
I still have one or two of those, not in service except as proof of
concept maybe,
I'm starting to think that maybe the original PSU had its alarm state
triggered by an external fault, maybe on the video card. I'm just guessing
because the manuals only say that the PSU has an external alarm contact
that will turn off the PSU in case the contact is closed, but It doesn't
say what
Hello guys again
Just a little update, we fed all the voltages through some test pins on the
main board (not using the original PSU connector yet) and the machine
started up but with no video signal. The LCD monitor lights up but no
signal on the screen. The video board is showing 4.92 volts on
Gene
Yes I understand the catastrophic failure mode of Buck converters. But what
is BBLB?
John Figie
On Sat, Dec 9, 2023, 7:39 AM gene heskett wrote:
> On 12/9/23 06:13, andy pugh wrote:
> > On Wed, 6 Dec 2023 at 16:08, Leonardo Marsaglia
> wrote:
> >>
> >> Just a little update. We're going
On 12/9/23 06:13, andy pugh wrote:
On Wed, 6 Dec 2023 at 16:08, Leonardo Marsaglia wrote:
Just a little update. We're going to try and feed all the voltages on the
main board of the control (+5V, +15V, -15V, and 24V) with normal switching
PSUs
Depending on the current requirements on each
On Wed, 6 Dec 2023 at 16:08, Leonardo Marsaglia wrote:
>
> Just a little update. We're going to try and feed all the voltages on the
> main board of the control (+5V, +15V, -15V, and 24V) with normal switching
> PSUs
Depending on the current requirements on each channel you might want
to look at
Just a little update. We're going to try and feed all the voltages on the
main board of the control (+5V, +15V, -15V, and 24V) with normal switching
PSUs and activate the EN signal that the old PSU fed to the control and
that should do the trick. Anyway if this works, I'll be working on a LCNC
>
> I missed the beginning of this. What kind a machine is this?
>
Hi Chris, since the original topic was for the power supply I didn't
mention any details about the machine. This is a Daewoo Puma 12L turning
center with a Fanuc OT-C control. The machine is from 1996.
As for the power supply,
On 12/5/23 11:26, Todd Zuercher wrote:
I think all Fanuc red cap encoders are digital. The question marks are if the
coms signal is differential quadrature or serial and if serial what format, and
what the commutation tracks/signals are or if they are rolled into the absolute
encoder serial
I missed the beginning of this. What kind a machine is this?
As for the power supply, they are very hard to debug if you don’t have a
schematic. But what about replacing it entirely?
Good motors are always expensive. But encoders have gotten cheap and easy to
use. The last one I bout
2031
>
> -Original Message-
> From: gene heskett
> Sent: Tuesday, December 05, 2023 11:52 AM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] OT Fanuc ot-c cpu power supply A16B-1212-0950
>
> [EXTERNAL EMAIL] Be sure links are safe.
>
> On 12/5/23
.
630 Henry Street
Dalton, Ohio 44618
Phone: (330)828-2105ext. 2031
-Original Message-
From: gene heskett
Sent: Tuesday, December 05, 2023 11:52 AM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] OT Fanuc ot-c cpu power supply A16B-1212-0950
[EXTERNAL EMAIL] Be sure links
g.)
Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone: (330)828-2105ext. 2031
-Original Message-
From: andy pugh
Sent: Tuesday, December 05, 2023 11:35 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] OT Fanuc ot-c cpu power supply A16B-1212-0
https://forum.linuxcnc.org/38-general-linuxcnc-questions/48987-trying-to-build-find-a-stmbl
> -Original Message-
> From: Leonardo Marsaglia [mailto:ldmarsag...@gmail.com]
> Sent: December 5, 2023 6:02 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] OT
to have a spare STMBL they could let go if
indeed it would solve your problem..
John
> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: December 5, 2023 7:44 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] OT Fanuc ot-c cpu po
On 12/5/23 11:18, Leonardo Marsaglia wrote:
Sorry I forgot to attach the picture.
I'd like to see that with the pink cover carefully removed.
El mar, 5 dic 2023 a las 13:13, Leonardo Marsaglia ()
escribió:
Can you identify the encoder? If it is Aa64 then the Fanuc hostmot2
component ought
On 12/5/23 08:17, Leonardo Marsaglia wrote:
Hello guys, and thanks for all the replies!
Well, we swapped the majority of the capacitors on the board and we still
get the alarm on the PSU. I'm almost inclined to consider this a LCNC
project and start doing the conversion.
One thing I'm
On Tue, 5 Dec 2023 at 16:19, Leonardo Marsaglia wrote:
>
> Sorry I forgot to attach the picture.
I am beyond the bounds of my knowledge in this area now. PCW (or
possibly Rene) might know more.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use
>
> Can you identify the encoder? If it is Aa64 then the Fanuc hostmot2
> component ought to work.
>
> https://linuxcnc.org/docs/stable/html/man/man9/hostmot2.9.html#Fanuc%20encoder
> (Others might too)
>
Hi Andy, the encoder is the one on the picture I'm attaching now. The model
number is *αI64
On Tue, 5 Dec 2023 at 13:22, Leonardo Marsaglia wrote:
> I'm attaching a picture of the X axis motor so you can see. I guess it
> should be possible to control it, but I don't really know how the encoder
> works. I know there's a Hostmot encoder module for Fanuc but I don't know
> anything about
On 12/5/23 08:17, Leonardo Marsaglia wrote:
Hello guys, and thanks for all the replies!
Well, we swapped the majority of the capacitors on the board and we still
get the alarm on the PSU. I'm almost inclined to consider this a LCNC
project and start doing the conversion.
One thing I'm
Well, from what I can see on Granite Devices website, their Argon servo
drives are now discontinued so that eliminates one big possibility for
replacing the fanuc drives and keep the motors. I don't know if Pico
systems or MESA has a drive for the power these motors require.
Although I'm not going
On 12/3/23 04:42, Roland Jollivet wrote:
If you can obtain/borrow any thermal imaging device, then run with the PSU
with covers off and check every 5min. You should identify a cap-thermal
problem.
For that, a $500 ir imager would be nice, but a $29 ir thermometer from
the local lumber yard can
If you can obtain/borrow any thermal imaging device, then run with the PSU
with covers off and check every 5min. You should identify a cap-thermal
problem.
On Sat, 2 Dec 2023 at 21:14, John Dammeyer wrote:
> > From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> >
> > If it is a simple
On 12/2/23 14:12, John Dammeyer wrote:
From: Chris Albertson [mailto:albertson.ch...@gmail.com]
If it is a simple linear power supply, yes they are very easy to debug and
repair, LIkey it is the caps.
But switching power supplies are much harder to debug, You can guess it
might be the same
USD.
-Original Message-
From: Leonardo Marsaglia [mailto:ldmarsag...@gmail.com]
Sent: December 2, 2023 7:58 AM
To: Enhanced Machine Controller (EMC)
Subject: [Emc-users] OT Fanuc ot-c cpu power supply A16B-1212-0950
Hello everybody, I hope you're all doing well!
Sorry for the OT but I
On 12/2/23 10:58, Leonardo Marsaglia wrote:
Notes from a CET, Leonardo.
Bordeerline semi might be suspect but very rarely take two hows to show
a problem, Usually under 10 minutes
Getting closer to the top of the list it might be a carbon composition
resister, look for discolored paint on
> From: Chris Albertson [mailto:albertson.ch...@gmail.com]
>
> If it is a simple linear power supply, yes they are very easy to debug and
> repair, LIkey it is the caps.
>
> But switching power supplies are much harder to debug, You can guess it
> might be the same issue but these have dozens
.
>
> John
>
>> -Original Message-
>> From: Leonardo Marsaglia [mailto:ldmarsag...@gmail.com]
>> Sent: December 2, 2023 7:58 AM
>> To: Enhanced Machine Controller (EMC)
>> Subject: [Emc-users] OT Fanuc ot-c cpu power supply A16B-1212-0950
>>
&
been running
perfectly now a year later.
John
> -Original Message-
> From: Leonardo Marsaglia [mailto:ldmarsag...@gmail.com]
> Sent: December 2, 2023 7:58 AM
> To: Enhanced Machine Controller (EMC)
> Subject: [Emc-users] OT Fanuc ot-c cpu power supply A16B-1212-0950
>
&g
Hello everybody, I hope you're all doing well!
Sorry for the OT but I think this is a good place to ask for what I intend
to do.
One of our lathes has this Fanuc OT-C with this a16b-1212-0950 power supply
which is now failing. I can only use the lathe a couple of hours before the
control stops
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