Re: Servo motor maximum voltage rating

Hi,

There should be no problem doing that as long as two rules are
observed:

(1) The drive should limit the motor current to the rated stall
current.

(2) You should limit speed to the motor's rated no-load speed.

Equally important is to observe the motor's maximum continuous torque
(current) rating. This is much lower than the stall torque. Torque
beyond that rating should be used for very short periods of time
only, such as accelerating and decelerating.

Don't think in terms of getting "better performance" from the motor
by using a higher voltage. The above rules are meant to get rated
performance from the motor at higher than rated supply voltages.

Going past rated limits will rapidly shorten the motor's life.

Mariss

--- In CAD_CAM_EDM_DRO@y..., npalen@n... wrote:
> Hello--I'm running some small pitman servo motors rated at 30 volts
> on a 24 volt power supply. What happens if I switch to a 48 volt
> supply to get better performance? Instant destruction?
> Thanks.
> Nelson