×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Homebrewed CNC, Looking for Servo Drivers

Homebrewed CNC, Looking for Servo Drivers

Homebrewed CNC, Looking for Servo Drivers

(OP)
Hi All,

I am attempting to help a colleague who is constructing a homebrewed CNC router table. He is a very capable mechanical engineer with limited electrical/controls engineering knowledge.
He has used servo motors which were lifted from a SMD comnponent placing machine that had decommissioned itself by a combination of age and quake damage. The motors are in excellent condition, but the servo drives were destroyed beyond repair.
The motors that he has are Sanyo Denkai brand, and I have had very limited success in finding a datasheet for them. They appear to be 3-phase motors with encoders fitted.
What I can find on Google is very limited, they are 200-240VAC 3-phase motors, probably around the 250W mark. I suspect that this is because the motors are a bit old.
I think that my chances of being able to sort out a suitable drive for these motors is going to be much improved if I can get a datasheet for them, and even then we may be out of luck.
I wondered if there was anyone on the forum who may have access to a set of old Sanyo Denkai catalogues and be able to help me out?
The motors have the part code 65BM007FXEOV.

Cheers,
Mark aka Paulus the Woodgnome

RE: Homebrewed CNC, Looking for Servo Drivers

I think you would be MUCH better off just using typical servo motors.

Unless the guy is going into repetitive mass production or will do things like engraving that leave the machine running pattern all night over and over just use DC BRUSHED servos and the outstanding Gecko Drives: http://www.geckodrive.com/geckodrive-brush-dc-drives.html

My router will move at 3ips whilst shoving around a large Porter-Cable router using only small Red-Bull can sized motors driven by older Gecko drives.

I predict a lot of work finding a solution for driving your motors. Yaskawa Signam II series drives possibly, hoping the motors come with agreeable encoders.

Keith Cress
kcress - http://www.flaminsystems.com

RE: Homebrewed CNC, Looking for Servo Drivers

I also highly recommend Gecko Drives... for simplicity, though, I'd stick with the servos.

Dan - Owner
http://www.Hi-TecDesigns.com

RE: Homebrewed CNC, Looking for Servo Drivers

I found this hobby forum and folks gave me good feedback so i want to give back if I can...

I have had to replace sanyo danky motors in the past so have a bit of info on them. I do not know if I have info on THIS particular motor, but if so, I would be happy to send it to you. Problem is, not going into my across town office (where that data is) very often, I will not remember to look when I DO go. So if you want to email me (see my sig block below to find) I will keep your email in my inbox and so be pretty sure to look when I get there.

You know they still have a european (aka english) website:

http://www.sanyodenki.eu/-AC-SERVO-SYSTEM-P-.html

maybe they would send to you if you ask?

www.KilroyWasHere<dot>com

RE: Homebrewed CNC, Looking for Servo Drivers

(OP)
Thanks for the link, Mike. I will email them with a pic of the motor nameplate and see if they can match it to a suitable driver.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources