Full-Step Or Half-Step Mode - Siemens SIMATIC S5 Manual

IP 267 Driving Stepper Motors with the IP 267
2.3

Full-Step or Half-Step Mode

Most power sections can operate stepper motors in half-step mode or in full-step
mode. The dynamic torque of a stepper motor increases in half-step mode, but
the motor requires double the number of pulses per revolution since the step
angle is halved. Path resolution doubles in the case of half-step mode, thus
achieving higher positioning accuracy. The acceleration value and the maximum
traversing velocity are reduced by half compared to full-step mode.
You can set full-step or half-step mode on almost all stepper motor power
sections using DIP switches, etc. You do not have to change anything on the
stepper motor itself. However, please follow the relevant power section
manufacturer´s instructions.
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EWA 4NEB 812 6061-02a