Quote Originally Posted by Viriality View Post
Thanks all, for taking the time to reply!

So... Say the motor is spec'd to have a continuous current of 20 amps.

Is it always going to draw this current when it runs, regardless of the speed or load it's under?

Taken from the kollmorgen akm2g low voltage selection guide:

They list continuous/max current/torque as being across the board, but -

The motor is spec'd to have a 24vdc, 48vdc, 72vdc, and 96vdc profile.
But I'm confused at how these three relate to the other specs (they list values for each voltage profile):
rated torque(speed)
rated speed
rated power(speed)

So it looks like there is just an increase in speed vs the voltage profile?

Is the continuous current for each voltage profile going to be 20amps?
The max current no, it is not always going to draw the max continuous current, but the Breaker has to be rated for this,20A X 125%=25A this gives you the Breaker size, the inrush current when you start the servo is normally 2 to 3 x the rated current, which ends up being close to the same as the max continuous current.