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Author Topic: Servo Motor question  (Read 13509 times)

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Offline DMBGO

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Re: Servo Motor question
« Reply #10 on: March 01, 2011, 05:03:39 PM »
This is to import the machine from Taiwan, so there will be another $3000.00 in freight and port charges etc.
Cheers

David

Offline Hood

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Re: Servo Motor question
« Reply #11 on: March 01, 2011, 05:11:21 PM »
Not too bad I suppose, I like the fumigation charge ;D
Hood

Offline DMBGO

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Re: Servo Motor question
« Reply #12 on: March 01, 2011, 05:12:35 PM »
Well there could be worms in the castings!!
Cheers

David

Offline Hood

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Re: Servo Motor question
« Reply #13 on: March 01, 2011, 05:16:17 PM »
 ;D

Offline DMBGO

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Re: Servo Motor question
« Reply #14 on: March 11, 2011, 01:59:09 AM »
I have pretty well decided to go with the VM760 machine frame below. I wont be buying the servos vfd or spindle from the manufacturer, since I think I can do better elsewhere. They have been pretty good to deal with so far, they are happy to provide couplers and make the motor mounts etc to suit the servos and spindle motor that I choose.
Cheers

David

Offline Hood

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Re: Servo Motor question
« Reply #15 on: March 11, 2011, 03:19:48 AM »
Sounds like a great place to deal with, keep us updated as things progress
Hood

Offline DMBGO

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Re: Servo Motor question
« Reply #16 on: March 11, 2011, 03:30:36 AM »
Hi again Hood et al; I have attached some specs for ADTECH servos, I don't know much about the manufacturer, but they seem quite price competitive. I was wondering if you could let me know your thoughts as to what you would select for the VM760. I am thinking of these:
ACH-13100CC Servo motor,1000W,2500RPM,4NM,4A
or
ACH-13100CC Servo motor,1000W,2500RPM,4NM,4A(Withbrake)
With this driver
QS6AA030M Servo Driver single phase or three phase 220V

Is 2500rpm fast enough? the servo will be direct coupled to the ballscrew

BTW Hood, I saw your latest post on the SS forum, I saw exactly those symptoms this arvo :)

Cheers

Dave
Cheers

David

Offline Hood

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Re: Servo Motor question
« Reply #17 on: March 11, 2011, 04:19:11 AM »
These colours are hard for me to read LOL
What confuses me is the motor specs say 4Nm cont torque but the graph suggests 10Nm cont.

2500RPM direct coupled with 5mm pitch will give you 12500mm/min max rapid.

Hood

Offline DMBGO

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Re: Servo Motor question
« Reply #18 on: March 11, 2011, 06:19:53 AM »
I don't understand the torque graph at all I think they made it up. Or scr-wed it up!
Cheers

David

Offline Hood

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Re: Servo Motor question
« Reply #19 on: March 11, 2011, 06:32:43 AM »
The graph is  what I would expect from the motors I have on the lathe, they are 3000rpm  10Nm cont 30 peak and about 3Kw.

Hood