[anowrosh]

hi all
i have 2 ac servo motor
1 of it no encoder on the back
anther one without encoder
how can i run it without its drive or encoder ?
can i run it like steeper motors ?

thanks

[mactec54]

hi all
i have 2 ac servo motor
1 of it no encoder on the back
anther one without encoder
how can i run it without its drive or encoder ?
can i run it like steeper motors ?

thanks

No to all your questions, you need a servo drive and an encoder for it to be of any use

[anowrosh]

No to all your questions, you need a servo drive and an encoder for it to be of any use

thanks

[Al_The_Man]

hi all
i have 2 ac servo motor
1 of it no encoder on the back
anther one without encoder
how can i run it without its drive or encoder ?
can i run it like steeper motors ?

thanks

When you say AC servo are they actually AC or BLDC versions, the motors are virtually identical, the difference is in the means of commutation.
Any part No's?
Al.

[kasem83]

No to all your questions, you need a servo drive and an encoder for it to be of any use

hi dear need help
plz i have a bermaq cnc siemens control and siemens servos
if i want to excchang the control
can i stay all servos and buy driver to run them???

[mactec54]

hi dear need help
plz i have a bermaq cnc siemens control and siemens servos
if i want to excchang the control
can i stay all servos and buy driver to run them???

Your drive control most likely is +/- 10v analog so yes it can be done, where you can have problems is with tool changers and spindle control normal axes control can be quite straight forward

[Al_The_Man]

hi dear need help
plz i have a bermaq cnc siemens control and siemens servos
if i want to excchang the control
can i stay all servos and buy driver to run them???

Siemens servo's used at least three types of encoder feedback, the very early ones were resolver, you would need to find out the type fitted in order to sub in any drives.
Most Siemens were also AC servo's, not BLDC.
Al.

[joeavaerage]

Hi,
I experimented running an AC servo with a vector capable VFD. It worked OK.

You can't use it for position control but you could use it as a spindle motor. The ratio of minimum speed to
maximum speed is limited to about 10:1. Not withstanding those limitations it works.

If you want position control then you need a genuine servo drive.

To be honest mixing and matching servos and drives is likely to be problematic. Al-the-Man and mactec54 have way more experience
and I would leave that to them. I bought a second hand 1.8kW AC Allen Bradley servo and matching drive for $600. It performs superbly
despite not being the latest generation model.

Delta, a Taiwanese company make great servos including on their latest models 24 bit absolute multi turn encoders.
DMM is a Canadian company manufacturing in China who produce good quality servos and drives at very good prices.

I suspect either of these companies could sell you a servo AND matching drive for less than you could get a drive for your Seimens servos.
There is still a learning curve to get MATCHING servos and Drives to work let alone trying to program a drive from a different manufacturer!

Craig

[mactec54]

Hi,
I experimented running an AC servo with a vector capable VFD. It worked OK.

You can't use it for position control but you could use it as a spindle motor. The ratio of minimum speed to
maximum speed is limited to about 10:1. Not withstanding those limitations it works.

If you want position control then you need a genuine servo drive.

To be honest mixing and matching servos and drives is likely to be problematic. Al-the-Man and mactec54 have way more experience
and I would leave that to them. I bought a second hand 1.8kW AC Allen Bradley servo and matching drive for $600. It performs superbly
despite not being the latest generation model.

Delta, a Taiwanese company make great servos including on their latest models 24 bit absolute multi turn encoders.
DMM is a Canadian company manufacturing in China who produce good quality servos and drives at very good prices.

I suspect either of these companies could sell you a servo AND matching drive for less than you could get a drive for your Seimens servos.
There is still a learning curve to get MATCHING servos and Drives to work let alone trying to program a drive from a different manufacturer!

Craig

Just thought I would post this as you posted about the Delta 24Bit multi turn encoder

DMM now have added a multi turn 32 Bit Encoder Dmm do manufacture in China but it is there own company, all design and prototyping and some manufacturing is done in Canada

https://www.youtube.com/watch?v=Vh1lxPZTmoE

[joeavaerage]

Hi,
Koool!!!

Don't see a price listed yet.

Craig

[mactec54]

Hi,
Koool!!!

Don't see a price listed yet.

Craig

They have had it for a while but only just released it I'm sure there web site will be up dated soon this new encoder was mainly aimed at the OEM's and the Robot industry but can be used for any application