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Author Topic: servo drives and ecoders  (Read 5438 times)

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Offline Hood

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Re: servo drives and ecoders
« Reply #10 on: October 06, 2013, 04:08:07 PM »
One other thing to consider when thinking of using remote encoders (ie not on motor) is if you have any backlash at all it can make the tuning of the motor very difficult and will likely lead to instability.
Hood
Re: servo drives and ecoders
« Reply #11 on: October 06, 2013, 04:12:12 PM »
Yes true so my best options would either be to find new servo drives that will work the motors I have or change the motors for ones that will either work with these drives or different motors and drives  all together ?

Offline Hood

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Re: servo drives and ecoders
« Reply #12 on: October 06, 2013, 04:16:53 PM »
It is often easiest to have drives and motors that match.
The Allen Bradley drives I have used on a few machines can be set up for custom motors (as long as you know the motors specs ) For example I have attached a pic showing most of the info required.
Lots of AC drives however are not so easy to match up with different motors and you have to really go with the motors that were meant to be paired with the drives.
Were the original drives dead?

Hood
Re: servo drives and ecoders
« Reply #13 on: October 06, 2013, 04:31:52 PM »
Yes the originals are dead , so I need motors to match these drives or motor and drives that are paired ? Shame these motors I have are fine

Offline Hood

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Re: servo drives and ecoders
« Reply #14 on: October 06, 2013, 04:36:55 PM »
Or drives that can be set up for custom motors.
Hood
Re: servo drives and ecoders
« Reply #15 on: October 06, 2013, 04:38:08 PM »
Yea true what about the FD432-LA series that zapp automation advertise 

Offline Hood

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Re: servo drives and ecoders
« Reply #16 on: October 06, 2013, 04:52:19 PM »
I am not sure, you would be best to either ask Zapp or maybe if you download the software you could see if there is a place to configure custom motor parameters.
Hood
Re: servo drives and ecoders
« Reply #17 on: October 06, 2013, 04:55:47 PM »
Ok Hood appreciate your advice on this . Nothing's ever straight forward :) will see if I can get some information on them
Re: servo drives and ecoders
« Reply #18 on: October 08, 2013, 09:48:03 AM »
Hi Hood , just want to pick your brains again:) i have contacted Omron (very helpful guy) and software is available to set up there drives, so it may be possible to set the drives I have to the motors I have ?? whats your opinion (hardest thing may be getting hold of the datasheets for the Yasakawa motors to get the required information ?)

Offline Hood

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Re: servo drives and ecoders
« Reply #19 on: October 08, 2013, 09:54:49 AM »
Do you have the software? If so have a look and see if it is possible to set custom motors.
Also if you post the models of the motors I may have info on them, I keep a lot of that kind of stuff :)

Hood