Power rating of the motor power supply

For typical applications the power rating of the motor power supply can be dimensioned such that for the 50% of the current of a stepper motor phase is assumed for the current consumption.

For larger load torques the actual maximum current consumption should be measured accurately!

This is only an estimate for typical applications. In cases where larger load torques occur at the motor, this configuration is insufficient. The actual maximum current consumption occurring must be measured and the motor power supply dimensioned accordingly.

Example for typical applications

A KL2541 that operates a stepper motor with a maximum coil current of 5 A in a typical application can generally be operated with a 48 V/2.5 A motor supply.