Padovani LE-200 Retrofit

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10 Jan 2022 10:10 #231295 by DoWerna
Yay we have a new project :-)

Bought myself a Padovani Teachin lathe
The machine is still in the shipping company
have so far only pictures.
Wanted to make it similar to the Maho,
and leave the original electrics as original as possible.

The machine has Siemens drives.
can you tell from the photos what they have for inputs?
+/-10V?

or are they already connected to a bus or something?
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15 Jan 2022 07:48 #231867 by tommylight
Replied by tommylight on topic Padovani LE-200 Retrofit
Closeups ?
Schematics ?
Chances are very high it is analog, so Mesa 7i97 or 7i92/7i77 should do the job nicely.
Let us know when you get the machine so we can "poke" some more. :)

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19 Jan 2022 14:17 - 19 Jan 2022 14:18 #232438 by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit
slowly it will start :-) .

Yesterday I set up the future computer.
After your positive mention of the series here in the forum, I bought a used HP 8300.

It showed good latency values right away, without any further hacks.
 

I already have a 7i92 here,
Now I have to study the circuit diagrams to see which cards I still need.


have just unloaded the lathe here
Everything looks good so far.

But first I have to sort everything out and set up the lathe in the workshop.
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Last edit: 19 Jan 2022 14:18 by DoWerna.
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19 Jan 2022 18:27 #232464 by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit

I already have a 7i92 here,
Now I have to study the circuit diagrams to see which cards I still need.

 

Hmmm, I have looked through the manuals and file folders.
A wiring diagram of the electrics seems to be missing
would probably have been too easy.

In the appendix some more designations.
of the installed control system and drivers.

 
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19 Jan 2022 18:31 - 19 Jan 2022 18:34 #232465 by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit
sorry for the poor picture quality

was quite dark and the mobile phone battery too empty for a flash



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Last edit: 19 Jan 2022 18:34 by DoWerna.

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20 Jan 2022 10:50 #232506 by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit
to start somewhere

support.industry.siemens.com/cs/document...ungen?dti=0&lc=de-WW

this pdf describes the interfaces of the shoring control system.
If I see this correctly, the machine really seems to have normal +-10V with encoder or glass scale feedback.

That would be already good
Outputs 24VDC, whether as sinking or sourcing I have to look yet



 

Connected to the central unit are the +-10V encoders and right PLC outputs as well as inputs, 24VDC.
 

The task of the so-called MPC module is unclear to me.
It is connected to the central unit via a serial data line.
Placed left next to the servo drives, 6FX1142-2BA02.

It also has many inputs and outputs, which are also connected.

Is the emergency stop chain possibly monitored with it?
Or hardware limit switches?

 
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21 Jan 2022 07:50 #232605 by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit
Since I don't have a wiring diagram for the lathe, I traced the path of the power current into the machine yesterday,
Some things are now clear, much is not yet :-)
But will become already...

What I would like to do now.

I would like to trace the complete wiring of the Siemens servo drivers, and understand it.
So I can test the servos with a small variable voltage source and without belts.

Once the servos run, I can remove the existing control system


Unfortunately I have not found any manuals for the Siemens servo drivers so far

Translated with www.DeepL.com/Translator (free version)

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21 Jan 2022 17:52 #232664 by Aciera
Replied by Aciera on topic Padovani LE-200 Retrofit
I'm not familiar with Sinumerik controllers but it likely has a PLC built in and the I/O-module on the left would interface all inputs and outputs like limit switches, coolant, and all that.
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21 Jan 2022 21:29 #232685 by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit
With the pdf from radom I could now assign all connected terminals of the Simodive.
forum.linuxcnc.org/30-cnc-machines/36886...he-retrofit?start=30


I am still unclear about the meaning of the individual enable connections on the spindle driver.
There we have a so called

"pulse enable" (663) and a
"controller enable" (65)

both separately switched via a relay.
and both refer only to the spindle motor.

Furthermore an input E4, also switched with a relay.
Freely programmable according to the manual.

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21 Jan 2022 22:26 #232692 by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit
 

aha
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