Isel Router with KEB S4 Drives

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11 Jun 2016 11:28 #75814 by aventtini
Hello guys , i have started some new projects on some old isel routers. I have some problems whit this KEB drives and dont know why .

I got encoders working in mesa but the analog voltage dot work . It just enables and i can fill the drive been stift . But wont move . Its posible this drive is a digial one . I attach the manual maybe we can get some sugestion .
www.servotechnica.spb.ru/library/KEB/F4_LIFT/00f4lebk300.pdf

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11 Jun 2016 14:22 #75819 by PCW
Replied by PCW on topic Isel Router with KEB S4 Drives
As far as I can tell from the manual, that drive can do analog velocity mode but needs to be programmed properly
(the LF parameters)

do you have the Keypad/display module?

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11 Jun 2016 15:57 #75821 by aventtini
yes i have the programing module on the drive . What parameter you mean on the display or internal . I can see it has a rs232 interface its possible the parameter is edit in the PC

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13 Jun 2016 17:20 #75931 by aventtini
falmot.home.pl/Instrukcja%20obslugi%20S4%20Komplet%20(EN).pdf

i cant find any sentting on analog in parameters . I can be torque ?

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13 Jun 2016 17:44 - 13 Jun 2016 17:45 #75932 by PCW
Replied by PCW on topic Isel Router with KEB S4 Drives
At the minimum you need to set LF2 = 4
This sets the drive into analog +-10V velocity mode

You probably also have to set all the accel and jerk limit parameters to maximums (or disable if possible)

was this drive used with a CNC machine?


It seems to be a drive for a elevator :-)
Last edit: 13 Jun 2016 17:45 by PCW.

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14 Jun 2016 09:20 #75970 by aventtini
PCW first post is wrong on the manual we have S4 not F4 for that i was not finding LF parameter

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14 Jun 2016 09:25 #75971 by aventtini
All the drives are from a isel router and we want to change to linux as its old system . We have enable the drive and i can see in linux the encoder but as it is in torque i cant drive it from a 7i77

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14 Jun 2016 11:09 #75986 by andypugh

All the drives are from a isel router and we want to change to linux as its old system . We have enable the drive and i can see in linux the encoder but as it is in torque i cant drive it from a 7i77


You can use torque mode with a 7i77. The loop is a little harder to tune, but it works.
Both my servo machines run torque-mode (8i20 drives).

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17 Jun 2016 04:51 #76197 by aventtini
There is any exemple of torque conf ? its a different configuration on ha?

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17 Jun 2016 11:36 #76207 by andypugh

There is any exemple of torque conf ? its a different configuration on ha?


No, it looks exactly the same. The proportions of P, I, D and FF in the PID control loop will be different, but they are different for every machine anyway.

There is the option of using nested control loops (with a speed control loop controlling torque and a position control loop controlling the speed control loop) and that is something I intend to experiment with. but it isn't necessary to make a working machine.

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