Hi all
I am currently selecting stepper motors for my system. To begin with I have calculated my load torque and final torque at my final required PPS. The supplier has also provided the torque vs Speed curve for a NMB stepper motor (at a rated current of 500 mA & 24 VDC). Now I am trying to see what will be the max current required.
My doubt is whether this rated current of 500 mA is when the torque is max and speed minimum? As my speed increases does the current (torque) in my motor decrease?
Or
does this rated current mean the motor always draws this current irrespective of the speed, for the provided torque Vs Speed curve.
Thanks