Alternative Servodrive for Indramat Servos

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06 Jun 2020 06:36 #170315 by Onkelmat
Dear Folks,
this is my first post but not the last :)
I´m planning on retrofitting my MAHO Mh600E ´89
It´s my main working machine in the shop and doing quite a good job. But the Ballscrews are little worn out and i´d like to run some better paths on it. It´s kinda time consuming to upload a 150kb file...like 5 hours.

I´d like to renew the ballscrews and use the old servos, because they are still working and fit.
If someone knows how to hook up the Indramat drives i´d keep them even too. When i look at the wiring of the drives in the cabinet there are like 10 wires each axis and some of them are crossed over and it´s not clear what each wire does. If someone would have a clear Pinout that would be great.
Or is it possible to use a modern driver with the old servos ?

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06 Jun 2020 08:34 #170320 by bbsr_5a
hi
you can use simply cheep servo systems
BUT does the Maho from 89 not got liniar scales
a real good and cheep retrofit is to go for 12Nm Hybrid this will lead in a good machine also and takes the cost down to 25%

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06 Jun 2020 08:43 #170322 by tommylight
We would need to see the schematics, but usually they are +-10V type, so pretty easy to use with Mesa 7i77 and one of 7i92/5i25/6i25

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06 Jun 2020 13:59 #170366 by Onkelmat
Are they easy to tune ? i´m scared they are not that good and i´ll waste money on the 7i77
If i can get some help i´d love to use them.
The Maho has glass scales and this omnious "exe board" can i use that with the mesa cards ?

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06 Jun 2020 15:59 - 06 Jun 2020 16:00 #170375 by PCW
Yes the "EXE" board converts the sine/consine signals from the scale to
quadrature signals that a 7I77 (or any standard quadrature input device)
can read.

Velocity mode drives are usually fairly easy to tune
Last edit: 06 Jun 2020 16:00 by PCW.

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06 Jun 2020 17:32 #170380 by Onkelmat
Okay that´s great.

I´ve bought this:
1x MESA 5i25 Superport FPGA based PCI Anything I/O card
1x MESA 7i77 Analog servo interface plus I/O daughtercard
1x cable :)

Now i need a computer running linuxcnc and some magic.

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06 Jun 2020 18:06 #170382 by Onkelmat
Is there knowledge about wich "Achse" Axis is wich ?
Achse 1 == X-Achse ?

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06 Jun 2020 18:25 #170383 by Henk
Here is a copy of the indramat 3trm2 manual. This is what in running in my Maho MH 600c.
The drive tuning should be good as is. So you only need to tune the position loop on linuxcnc.

drive.google.com/file/d/1X8BgF0Kp-L1CpKZ...8H/view?usp=drivesdk

Henk

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07 Jun 2020 19:11 #170515 by Onkelmat
Thank you very much Henk,
those are drives that i have on my machine.
Does anyone have a clue how to salvage the relais board ? I mean something like a pinout ? There are cables with numbers like 325 or 311.

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08 Jun 2020 04:51 #170580 by Henk
Do you have the machine electrical documents/wiring diagrams?

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