Newbie- What drives/power for these servos?

[bodini]

Have some servos (on a machine) that read as such (see pic for full data):

stall torque: 1.6nm
rated speed: 3000 rpm
kt: 0.16 nm/a
bemf: 16.5 v/krpm
rated curr: 10A

So will G320's fit the bill? What size toroidal transformer for 3 or 4 axis?

Thanks!

[Bubba]

From the nameplate data, it appears that you will need ~50V Dc (3*16.5) and for a 4 axis machine, I would rate the current flow at ~(4*10*.66) or 26 Amps based on previous discussions that I have read here and elsewhere. Also, I see this unit has a tachometer and you will need an encoder to work with the Gecko. If you add an encoder, try to find one that uses <50ma current supply @5V or you will have to have a separate power supply for that. The AMT encoders seem to be in favor at the present time for the Geckos and can be found at DigiKey.

Hope this helps.

[bodini]

Thank you. That brings up another question for my curiosity. What is the torque of these motors in comparison to a modern servo, such as a Keling? I mean like how many oz-in?

Thanks again. :-)

[Al_The_Man]

1.6N-m = 1.18 lb-ft (226 0z-in).
To allow for losses etc, I would go at least 60vDC for the supply.
Usually the minimum voltage rating for the supply is motor terminal voltage +10% min.
Al.