Padovani LE-200 Retrofit
30 Jan 2022 14:00 #233545
by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit
With the matrix I would have enough gpios,
But they are completely unprotected, against ESD, EMI, or just me
The 7i92 also sits in the back of the machine.
The cables to the buttons would be very long, and run parallel to the feed lines of the servos.
I think this is not a good combination.
Although I have read a bit on the subject
www.digikey.com/en/articles/protecting-i...-digital-electronics
But I think a 7i73 directly under the panel is surely the cleaner and much simpler solution than a protection circuit on a further board...
so it will probably be a 7i73
Translated with www.DeepL.com/Translator (free version)
But they are completely unprotected, against ESD, EMI, or just me
The 7i92 also sits in the back of the machine.
The cables to the buttons would be very long, and run parallel to the feed lines of the servos.
I think this is not a good combination.
Although I have read a bit on the subject
www.digikey.com/en/articles/protecting-i...-digital-electronics
But I think a 7i73 directly under the panel is surely the cleaner and much simpler solution than a protection circuit on a further board...
so it will probably be a 7i73
Translated with www.DeepL.com/Translator (free version)
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01 Feb 2022 10:15 #233702
by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit
Good news
Traced the original emergency stop chain and scissored it.
I think I understand the circuit and how it interacts with the controller.
Could even test the Simodrive with a 0-5V voltage source, spindle servo and X-axis servo worked
I haven't tested the Z axis yet, would like to remove the drive belt first....
How can I check if the direction of the three-phase current to the machine is correct?
The servo motors work, but I just put the machine under power without checking it.
Next question,
How was such a machine homed, with the original control?
The machine has no glassrulers and I have also found no switches on the axes.
Feedback comes from rotary encoders on the spindles, which would have an index signal.
I wanted to mount switches and then reference in combination with the encoders.
Go till limit switch, then back till index signal.
but how was this done on the original machine.
or was there no homing provided?
Translated with www.DeepL.com/Translator (free version)
Traced the original emergency stop chain and scissored it.
I think I understand the circuit and how it interacts with the controller.
Could even test the Simodrive with a 0-5V voltage source, spindle servo and X-axis servo worked
I haven't tested the Z axis yet, would like to remove the drive belt first....
How can I check if the direction of the three-phase current to the machine is correct?
The servo motors work, but I just put the machine under power without checking it.
Next question,
How was such a machine homed, with the original control?
The machine has no glassrulers and I have also found no switches on the axes.
Feedback comes from rotary encoders on the spindles, which would have an index signal.
I wanted to mount switches and then reference in combination with the encoders.
Go till limit switch, then back till index signal.
but how was this done on the original machine.
or was there no homing provided?
Translated with www.DeepL.com/Translator (free version)
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03 Feb 2022 20:26 #233908
by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit
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06 Feb 2022 11:50 - 06 Feb 2022 11:51 #234094
by radom
Replied by radom on topic Padovani LE-200 Retrofit
I think it was homed on those marks with indexif you have those marks od your machineNext question,How was such a machine homed, with the original control?The machine has no glassrulers and I have also found no switches on the axes.Feedback comes from rotary encoders on the spindles, which would have an index signal.I wanted to mount switches and then reference in combination with the encoders.Go till limit switch, then back till index signal.but how was this done on the original machine.or was there no homing provided?Translated with www.DeepL.com/Translator (free version)
Last edit: 06 Feb 2022 11:51 by radom.
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09 Feb 2022 10:30 #234381
by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit
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18 Mar 2022 10:31 #237627
by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit
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02 Apr 2022 15:22 #239075
by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit
the panel is not 100% protected against chips from behind.
Today I printed a small case for the 7i76.
I uploaded the stl files on thingiverse.
www.thingiverse.com/thing:5338518
Today I printed a small case for the 7i76.
I uploaded the stl files on thingiverse.
www.thingiverse.com/thing:5338518
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13 May 2022 21:03 #242910
by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit
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13 May 2022 22:19 #242912
by tommylight
Replied by tommylight on topic Padovani LE-200 Retrofit
Hmmm is that panel floating or have i gone fully blind?
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14 May 2022 05:00 #242937
by DoWerna
Replied by DoWerna on topic Padovani LE-200 Retrofit
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