Quote:
Originally Posted by snowyskiesau
In most cases, you can go well over the rated or stated voltage of a stepper, it's the maximum current that you can't exceed.
As an example. I have some steppers that have a stated maximum voltage of 5.1 volts but they run on a stepper controller that provides a maximum of 50V.
If you know the inductance of the stepper as you can then calculate the maximum voltage it will handle. The formula is:
max voltage = 32 * sqrt (inductance).
For the motors I have, the inductance is 2.8mh so maximum voltage is 53V.
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Be careful with this ...
The maximum voltage that can be applied to motor coil is dependent not only on inductance but also on PWM (or stepping) frequency.
The max coil current shouldn't be exceeded, though.