Padovani Labor-e 275 lathe retrofit

More
29 Jun 2019 17:33 - 29 Jun 2019 17:35 #138182 by radom
Hello everyone,
I'm new to Linuxcnc and cnc in general so I hope you could help me with my first retrofit
I bought this lathe with a broken Fagor 8050 controller, its got Simodrive 611 modules with siemens motors, analog control +/-10V and they seems to work as I tested them with simple 1.2V battery
I bought mesa cards 5i25 and 7i77 and started wiring it. I don't have wiring diagram for this machine but everything looks quite simple
I wanted to reuse existing cables and I run into first problem, differential input +/-10V for both X,Z axis and spindle is in one 6-wire (3 pair) shielded cable, where to I connect this shield? Or do I need to change to separate cables with separate shields for each input?
Attachments:
Last edit: 29 Jun 2019 17:35 by radom.

Please Log in or Create an account to join the conversation.

More
29 Jun 2019 17:54 #138184 by pl7i92
quite nice projekt
the shield is always against mashine Gnd
you only need to BRIDGE the 24V Gnd
but i think you use the 611 ER 24V out to the 7i77


yu shoudt folow the
SERVO tuning example at gnipsel.com
The following user(s) said Thank You: radom

Please Log in or Create an account to join the conversation.

More
29 Jun 2019 20:47 #138195 by tommylight
Use a DVM and check for continuity of that shield to the drives or machine gnd, if it is wired to any of them do also check the negative side of the power supply that the 7i77 is going to be powered by, if all of them are wired together it will not matter much if you wire them anywhere or not, but you could wire them to the gnd on the Mesa board.
Almost always I leave one side hanging, not connected to anything to prevent ground loops.
The following user(s) said Thank You: radom

Please Log in or Create an account to join the conversation.

More
29 Jun 2019 21:42 #138198 by radom

Use a DVM and check for continuity of that shield to the drives or machine gnd, if it is wired to any of them do also check the negative side of the power supply that the 7i77 is going to be powered by, if all of them are wired together it will not matter much if you wire them anywhere or not, but you could wire them to the gnd on the Mesa board.
Almost always I leave one side hanging, not connected to anything to prevent ground loops.


shield was connected only at the old controller end, so now it's not connected to anything
do I wire it to TB1 GND pin or one of TB5 GND pins or somewhere else?
regards

Please Log in or Create an account to join the conversation.

More
29 Jun 2019 22:03 #138201 by PCW
for the analog signals:

TB5 7I77 AOUT --> DRIVE IN+
TB5 7I77 AGND --> DRIVE IN- and shield

(shield should be terminated only at 7i77 end)
The following user(s) said Thank You: radom

Please Log in or Create an account to join the conversation.

More
27 Jul 2019 15:39 #140752 by radom
thanks guys, I think I have it working now,
cables are dangling and I don't have lights yet but I already had few jobs needed to be done :unsure:
I still didn't touch on PID tuning but it seems to work ok at least from what I can tell

test of threading, 3mm pitch 400rpm

Attachments:

Please Log in or Create an account to join the conversation.

More
28 Jul 2019 21:40 #140845 by andypugh
That's a bit of monster!

Is that a D1-nose on the outboard end of the spindle?

Please Log in or Create an account to join the conversation.

More
29 Jul 2019 17:02 - 29 Jul 2019 17:03 #140896 by radom
yes, D1-8 on both ends, 108mm spindle bore
Attachments:
Last edit: 29 Jul 2019 17:03 by radom.

Please Log in or Create an account to join the conversation.

More
22 Nov 2019 18:53 - 22 Nov 2019 19:00 #150958 by Japantuning
Hello Mr Radom :) I have a simular Padavoni cnc (Labor E200). I cannot get hold of the original ore simular parameter files for the Sinumerik 805 controller.

So i have 2 questions here:

Do you have backup of parameters from your machine? if so, any chance we can buy them from you?
I could use them and adapt them to our machine.

Option nr 2: Retrofit this machine with Linuxcnc. if so, is there any chanse you can provide me with setup files/parameters used here?


Best Regards,
Ronny
Last edit: 22 Nov 2019 19:00 by Japantuning.

Please Log in or Create an account to join the conversation.

More
07 Sep 2020 18:47 #181166 by Masiwood123
Hi gays i also have labor e255 padovani, i would like if you can explain how to wire simodrive 611 to mesa 7i77? what wire is going from output to driver. thank you in advance
Attachments:

Please Log in or Create an account to join the conversation.

Moderators: cncbasher
Time to create page: 0.355 seconds
Powered by Kunena Forum